Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015

Session: Civil Engineering and Structural Engineering

158 articles
Proceedings Article

Singularity Analysis of a three translational degrees of freedom Parallel Mechanism

Binjiu Yang, Xiu Qin
The singularity of a new 3-DOF parallel mechanism was analyzed. The position equation of the mechanism was gotten by the inverse kinematics solution. The velocity equation of the machine was gotten by the derivation of the position equation, and then got the Jacobian matrix, and the singularity conditions...
Proceedings Article

Simplified Mechanical Model of Ship Lift-Ship Box Structure

Li Yan
According to the connection feature of the gear and rack, an equivalent two-dimensional tandem and many freedom-degrees dynamic model of the structure system including the ship lift and the ship box was established based on the dynamic characteristics of three-dimensional finite element model. The results...
Proceedings Article

The Numerical Analysis of Landslide Anti-slide Pile Mechanism under the Condition of Rainfall

Chen Zhao, Yong Feng, Xuguang Li
For now, the engineering landslide caused by rainfall is increasing, but the current research mainly stays in two-dimensional space which neither tallies with the actual three-dimensional space, nor lacks the related research on the influence of the landslide-function anti-slide pile system under different...
Proceedings Article

The Study Of The Arch Types Research And Prevention Measures About The Grain Inside Silos

Yong Feng, Feiya Xie
An arch will block the flow of grain , destroy the continuity and reliability of the discharge operations, and interrupt the continuity of discharging . Aim at the arch could produce harmful phenomenon and combining with the knot into the mechanism of the arch ,when we load and unload food.We propose...
Proceedings Article

Moment Distribution Method to Compute the Moment of Continuous Beam Using WPS

Ming Bo Zhao
This paper presents the moment distribution method to compute the moment of continuous beam end, in which the operating functions of WPS are called. In this method, the bending moment of beam end can be calculated in PC system, just inputting the transfer coefficient, the distribution coefficient and...
Proceedings Article

The Anti-earthquake Safety Evaluation of Lock Chamber Based on Finite Element Method

Lijia Ma, Dandan Li, Qian Cai
The sluice is located in the place where the basic seismic intensity is degree 8. According to anti-earthquake safety calculation of lock chamber based on finite element method, the result shows that the displacement of the lock chamber is within safe levels and that the strength of sluice satisfies...
Proceedings Article

The research about parameters influence on the mechanical performance of haunch connection

Yongjuan Liu, Yan Wang
To research about parameters influence on the mechanical performance of haunch connection with haunch only on bottom beam flange, On the based of the analysis about haunch connection design step, theoretical calculation and ansys simulation were used to study the effect of haunch length, height ,beam...
Proceedings Article

Maintenance and Reinforcement Design of Relics Steel Arch Bridge

Shuai Yuan, Weizhen Chen
Many domestic steel structure urban bridges built in the last century have been maintained and strengthened in succession because of reaching their design working life. These old bridges have the triple function of historical culture, human landscape and transportation. The maintenance and reinforcement...
Proceedings Article

Mechanical Characteristics of Concrete Bottom Slab in Elevated Pile Cap Steel Boxed Cofferdam in a Bridge

Wenjing Wang, Bin Liang, Weiwei Chen
Mechanical characteristics of concrete bottom slab in elevated pile cap steel boxed cofferdam in a bridge is studied. Taking Yuanshui bridge as an engineering example, the loading process of a precast reinforced concrete bottom slab, a part of a steel suspension box cofferdam using dry sealing and embosoming...
Proceedings Article

Study on the Influence Factors of Cast-in-situ Bored Pile Bearing Capacity under Karst Geology Condition

Wenjing Wang, Bin Liang, Weiwei Chen
Influence factors of the bearing capacity of cast-in-situ bored piles under the karst geology condition are studied. Taking the large diameter cast-in-situ bored piles of Yuanshui bride piers in karst region as an engineering example, effects of three influence factors on the bearing capacity of bored...
Proceedings Article

An Effective Substructure Analysis for Soil-Structure Interaction

Chaojiang Fu
A 2-dimensional plain strain finite element seismic soil-structure interaction (SSI) analysis based on the substructure method is presented. A complete SSI analysis is performed. Namely, linear and non-linear SSI analysis is considered; and analysis without the consideration of SSI is performed; and...
Proceedings Article

Optimal Design of Truss Structures based on the New Improved Ant Colony Optimization Algorithm

Shi-Feng Li, Zhuo-Qun Zhang, Hong-Nan Li, Zongdong Ren
This paper highlighted a new improved ant colony optimization algorithm was realized to deal with structures optimization problems efficiently, with several special improvements. The new algorithm procedure was written by the MATLAB language. The numerical simulation results demonstrated that this new...
Proceedings Article

On Dynamics of the Biggest Lift Bridge in the World

Peter Rosko
The paper deals with dynamic analysis of biggest lift bridge in the world. The Botlek bridge is placed in Rotterdam area and currently is under construction. The bridge is unique and the design required concurrent know-how from mechanics theory and technology practice. The statically and dynamically...
Proceedings Article

Deflection Solutions for Concentrated Force on Spherical Shell

Fan Wang, Xing Wang
The deflection solution of concentrated loads on spherical thin shell has already been widely studied. The solution for a concentrated normal force was first obtained by E.Reissner in 1946 by using the classical theory of shallow shells. This problem was also considered by S.P.Timoshenko(1946), Stanislaw...
Proceedings Article

Stiffness Analysis for Hollow Spherical Joints

Fan Wang, Xing Wang
Hollow spherical joints’ stiffness has important effect on the strength and stability bearing capacity of reticulated shells. Because of complication of theoretical analysis and difficulty on experiments, the stiffness of hollow spherical joints which are applied widely in the large-span reticulated...
Proceedings Article

Design of Safety Monitoring and Early Warning System for Buried Pipeline Crossing Fault

Wu Liu, Wanggang Hou, Wentao Zhang
Long-distance buried pipeline crossing fault is prone to being cracked, fractured and buckling failure, so the implementation of pipeline security monitoring and early warning can not only after the earthquake quick report, but provide basis for assessing the safe operation condition of the pipeline...
Proceedings Article

Numerical Simulation Analysis of the Stability of Heishan Tunnel’s Surrounding Loess during Construction

Yang Song, Wen-Jun Sun, Ke-Xin Guo, Wei Lu
Stability of tunnel’s surrounding rocks is a big issue during construction. Based on the characteristics of crown settlement and convergence deformation of surrounding rocks, numerical simulation of Heishan tunnel has been carried out to investigate the interaction between right and left tunnels during...
Proceedings Article

Study on Seismic Performance of Continuous Rigid Frame Bridge Based on Pushover and IDA Analysis

Tang Tang, Yong-Jiu Qian, Yong-Shui Zhang
Based on the restriction of Chinese seismic design criterion which is only applied to regular bridges whose column heights are lower than 40 m, a typical high pier and long span rigid bridge is used in this study The typical nonlinear numerical analysis model is built for long-span continuous rigid frame...
Proceedings Article

Analysis on Local Stress of Steel-concrete Joint Section of Weihe Grand Bridge

Weiwei Chen, Bin Liang, Wenjing Wang
Local stress of steel-concrete joint section is analyzed in the role of three conditions. According to the engineering example of Weihe grand bridge, the finite element space model of steel-concrete joint section is built. Through calculation and analysis, the stress state of steel-concrete joint section...
Proceedings Article

Research on Structure of Steel-concrete Joint Section in Hybrid Girder of a Grand Bridge

Weiwei Chen, Bin Liang, Wenjing Wang
Structure of steel-concrete joint section in hybrid girder of a grand bridge is studied. Taking Weihe grand bridge as an engineering example, structure combination of steel-concrete joint section and detail structure design including joint section connector, longitudinal prestressed reinforcement, steel...
Proceedings Article

Optimization of Oil Pipe Arrangement with Conditions of Compensation and Different Unit Cost

Dongping Wei, Tianli Lei, Lv Peng
It is usually to see that oil pipelines usually pass through suburbs areas and urban areas. And it is necessary to pay compensation to private properties owners when the pipelines occupy some private properties. Meanwhile, the unit costs of different section pipelines are different because the production...
Proceedings Article

Progress in the Research of Virtual Trial Assembly

Yang Li, Jian Yao, Yuling Zhang
There are two ways of trial assembly for steel structures which are well known as the physical trial assembly and the virtual trial assembly. The physical trial assembly is of high reliability but low economy. Nevertheless, the virtual trial assembly can save cost to the extreme extent and shorten the...
Proceedings Article

New Idea for the Weld between Orthotropic Deck and U Rib

Changjiang Wang, Yuling Zhang, Xiangyang Chen, Jian Yao, Zifang Ren
Orthotropic steel bridge deck system has a large number of applications in recent years in many countries. Based on the research on the Thicken Edge U rib (TEU), a new fatigue control technology route is put forward in this paper. The conception is that, on the premise of increasing a small amount of...
Proceedings Article

Debris Flow Hazard Zoning Based on Numerical Simulation in the Wenchuan Earthquake Meizoseismal Areas

Jun Wang, Yan Yu
The Wenchuan earthquake triggered a large number of landslides and collapses in the quake-hit areas, which left a tremendous amount of loose deposits on the slopes and on the valley bottoms. The debris flow pregnant environment has changed dramatically, making the hazard level of debris flow increased...
Proceedings Article

Study on Real Time Monitoring Method for 2-D deformation of Settlement Joint by Long Gauge FBG Sensing Technique

Yashuang Han, Hao Zhang, Sheng Shen
In this paper, to monitoring the 2-D deformation of building’s settlement joint, based on the testing Macro-strain of long gauge FBG strain sensing technology, the calculating method for the 2-D deformation is derived. One kind of accurate real time monitoring method is proposed, and its reliability...
Proceedings Article

Study on Synthetic Reinforcing Approach and Its Applications

Bing Xing, Jun Xiao, Shi-Zhong Qiang, Tang Tang
A new method of synthetic reinforcing approach is first put forward systematicly in this paper. Its main feature is the old and new material obtainted the appropriate prestressing by adjusting structural reinforcement of internal forces, realizing the combination of the structure prestress technology...
Proceedings Article

Research on Bayesian Prediction of Long-Term Deformation for Reinforced Concrete Beams

Zhengyang Zhang, Renda Zhao, Tengfei Xu
This paper proposed introducing random variable test information into Bayesian prediction of long-term deformation for reinforced concrete structure, provided Bayesian prediction of long-term deformation for three reinforced concrete beams, and studied impact of prior distribution on the prediction results.
Proceedings Article

Statistical Analysis and Research on Common Defects of Precast Slab Girder Bridge

Zicheng Wang, Hengshan Wu
In this paper, the small and medium span precast hollow slab girder bridge in Dongguan city is taken as an example in order to statistically classify common defects of precast slab girder bridge respectively from the aspects of the bridge decking, upper structure and lower structure. Moreover, possible...
Proceedings Article

Review of Application Research of BRBs in Seismic

Xiaoli Li
As a new type of energy dissipation component buckling restrained brace overcomes traditional brace s drawbacks such as compression buckling inability to make full use of material s plastic hysteretic energy dissipation function when under pressure. Buckling restrained brace also has the advantage of...
Proceedings Article

A Comparative Research on the Optimal Anchor Angle of Anchor Cable Frame Project

Xiao Tong
It often happens in anchor cable projects that the beams of anchor cable fail to exert the optimal effect or even the projects fail due to the irrational design of anchorage angle. In response to this, based on the principal theoretical formula, the expression of the optimal anchorage angle was deduced,...
Proceedings Article

Research on quality evaluation of landslide forecast model

Zhaoyang Wang
In recent years, At home and abroad scholars proposed a great deal of mathematical models on landslide forecast, which through the fitting of landslide monitoring data and trend analysis to determine the landslides time. How to determine the results of the analysis to different mathematical models and...
Proceedings Article

Bearing Fault Diagnosis Based on Improved Hilbert-Huang Transform

Fenglei Ma, Xiaoshuai Chen, Jilong Du
For empirical mode decomposition (EMD) method had endpoint effect and modal aliasing problems, in this paper an improved Hilbert-Huang transform (HHT) based on combination of symmetrical-mirror continuation and correlation coefficient method was put forward. This method can eliminate the modal aliasing...
Proceedings Article

Researching of common seismic wave source

Xu Fang Zhu, Bing Yan, Lan Luo
The technology of seicmic wave is more and more useful in mineral prospecting,buried targets exploring and some other items .there are many disadvantages in the traditional seismic wave stimulate technology.this atticle summarises and compares the advantages and disadvantages among the seismic wave....
Proceedings Article

Compression bearing capacity analysis of concrete in edge and corner under prestressed constraint

Zhanshuo Cao, Xinsheng Yin, Jingwei Cai
With the development of architectural diversity, local pressure has become a common form in civil engineering, the problem of compression bearing analysis of concrete in edge and corner become more and more prominent, under the prestressed constraints, the article try to study on the change of the pressure...
Proceedings Article

Particle flow simulation of sand under biaxial test

Xiao-Li Dong, Wei-Hua Zhang
Sand, also known as non cohesive soil, the particle is contact point to point. The particle properties are very suitable for the simulation of particle aggregation through the biaxial tests. Study on the sand mechanical parameters by the biaxial test with a linear contact model, parameters of the study...
Proceedings Article

Civil engineering quality monitor framework based on information theory

Ruhang Xu, Lei Qin
Many researches emphasized the importance of quality control in manufacturing engineering. But there are little researches in the civil engineering field. This paper pointed out that it is possible to apply process control method in construction quality monitoring based on information theory. It is possible...
Proceedings Article

Application of Moment of Momentum Theorem in Tie the Knot with A Hoop and A Chain

Shanshan Zheng, Bin Zheng, Shuying Qu, Bing Hao
The reason why magic is mysterious is because the masters have sufficient application and grasp of various kinds of scientific principles. Here, take "tie the knot" magic for example, carry out several experiments of a single hoop knotting with a chain, analyze the process of operation, movement and...
Proceedings Article

The nonlinear analysis on cross-section short-limb shear wall

Qiang Zhang, Cheng-Cheng Tao, Wei-Rong Cao
Nine cross-section reinforced-concrete short-limb shear wall specimens under monotonic load are analyzed by the nonlinear finite element analysis with the software ANSYS, which compares the change of load capacity, stiffness and ductility of the shear wall when axial compressive ratio changes. The results...
Proceedings Article

The Research on Stress Intensity Factor of Steel Bridge Members Based on Finite Element Method

Ying Li, Jia Qu
The calculation accuracy of stess intensity factor K has direct effect to the results when elastic fracture mechanics is adopted to fatigue life estimation. In order to decrease calculation errors, the steel I-beam with side crack and the steel box beam with central crack have been studied which are...
Proceedings Article

Study to the Treatment of Bridge Bored Pile in the Karst Terrain

Hao Wu, Jinghui Liu, Qida Zheng, Wenku Wang, Yong Ya
the broken pile is one of the serious accidents due to quality in bored pile of bridge, and different treatments have been put forward toward the pile breaking problem discovered in pile checking; and we expound emphatically the problem of the deep broken pile under the bridge bored pile through the...
Proceedings Article

Experiment and Analysis of Concrete Superimposed Beam-plate under Secondary Load

Limin Yang, Jiangwei Wang, Jinjun Guo
Combining with strengthening engineering of a practical reinforced concrete plate bridge serving for 30 years, the superimposed experiments of four old bridge plates were studied with full size of 4960mm*950mm*220mm. The characteristics of composite members under secondary load stage were analyzed, such...
Proceedings Article

A Brief Review of the High-order Numerical Manifold Method

H.H. Zhang, X.L. Ji
The numerical manifold method (NMM) is first proposed by Dr. Shi. The finite cover technology from the mathematical manifold analysis is incorporated into the NMM. Due to the independence of the mathematical cover system from the physical domain, the NMM has unique advantages on the analysis of both...
Proceedings Article

Heat Conduction Analysis of the Composite Wall by the Extended Finite Element method

H.H. Zhang, J.J. Zhu
Recent years, the “green” building is booming. As an important component of this environmentally friendly building, the composite wall insulation system has attracted a lot of attentions. In this paper, the widely used extended finite element method (XFEM) is adopted to analyze heat conduction problem...
Proceedings Article

Analytical Analysis of Steel Reinforced Concrete Transfer Beam

Fan-Shen Meng
In this paper, using the method of stress function analysis of steel reinforced concrete transfer beam and upper shear wall mechanical characteristics and deformation law of interaction, its stress distribution field has been given; Nonlinear finite element calculation and combined with some engineering...
Proceedings Article

Simulation Method of Main Cable Temperature for Suspension Bridge

Ying Wang, Muyu Liu
Solid thermal finite element model of suspension bridge main cable was established by finite element software ANSYS. Layered grid was divided along the radial direction of main cable. Main cable thermal parameters ,including heat conductivity coefficient, specific heat, thermal expansion coefficient...
Proceedings Article

Analysis on the production situation of new wall materials in each region of Hebei Province

Dezhi Meng, Minghui Cui, Xiaoyong Liang
Based on practice data, this paper focused on the market supply and demand relation and used the systematic method to analyze the brick type, block type, heat preserved new wall materials in Hebei province. according to the amount of chimney and the number of new wall materials and production, this paper...
Proceedings Article

Research on Influences of Retaining Wall Draining Capacity on Stability of Reservoir Bank Slope Retaining Wall

Yisong Zhang, Liming Wu, Zijian Wang, Guojun Lv
Taking one typical reservoir bank slope as example, do comparative analysis on internal force and displacement of slope under different draining conditions through utilizing finite element software ABAQUS. Analysis results show that thrust of slope on retaining wall obviously increases with the lengthening...
Proceedings Article

Numerical Simulation Analysis of Karst Tunnel Water Bursting Movement

Baohua He
The karst water is one of the main geological disasters in tunnel construction in Karst area. The disaster of water inrush in karst tunnel is studied in this paper. FLOW-3D is used to simulation movement patterns of water inrush in karst tunnel based on BaoFeng tunnel engineering. The following contents...
Proceedings Article

Dynamic analysis for shallowly buried elliptic inclusion near interfacial crack impacted by SH waves in bi-material half space

Xiao-Hao Ding, Hui Qi
Base on elastodynamics, complex function method with mapping function and Green’s function method are used to investigate the scattering of SH waves and dynamic stress concentration in bi-material half space with elliptic inclusion and interfacial crack. Firstly, the bi-material half space is divided...
Proceedings Article

Study on Effect of Different Porosity on Thermally Driven Heat Transfer in a Centrifugal Force Field

Jie Xia, Hai-Ping Chang, Hou-Xiang Tang
Based on the exploiture of turbine blade super cooling technology, porous medium is installed in a new kind of cooling configuration with cooling tunnels. Experiments and numerical simulations are carried out to investigate the thermally driven heat transfer rules in the new kind of cooling configuration...
Proceedings Article

Study on the temperature field and thermal stress in the concrete box girder bridges

Jian Shen, Xiaoyun Liu
Concrete bridge structures are usually exposed to the natural environment. Because of sunshine, wind, precipitation, etc natural environment influence, the concrete structure is changing temperature. With the poor thermal conductive performance of concrete, the upper structure temperature gradient appears...
Proceedings Article

Research on the material degradation model and the bonding-slipping effect of reinforced concrete

Jian Shen, Xiaoyun Liu
Based on the modified plate-truss model, the time-varying ultimate capacity of RC subjected to bending, shear and torsion were studied. An average constitutional relationship of steel bar is developed by considering both the bonding-slipping effect and corrosion ratio of reinforcing steel bar. The calculation...
Proceedings Article

Analysis on ultimate bearing capacity of the prestressed concrete beam end of dispersion anchorage under local pressure

Xinsheng Yin, Yang Liu
In this paper, a finite element software ABAQUS is carried out to calculate the ultimate load bearing capacity of the concrete under the restraint of prestressed bar. According to the failure criterion of Mohr-Coulomb, the calculation method of ultimate bearing capacity is put forward, and get the ultimate...
Proceedings Article

Research on surrounding rock phase change effect to the initial supporting in cold region tunnels

Yuwei Zhang, Youyun Li
In order to study the influence of surrounding rock temperature phase change to the initial supporting force, temperature sensors, pressure box, steel force meter were used to monitor the tunnel environment temperature, surrounding rock temperature, pressure between surrounding rock and shotcrete layer,...
Proceedings Article

Study on the Bearing Capacity of Autoclaved Fly Ash Masonry Short Column

Xiaoxin Yang, Jianrong Yang, Zhichao Peng
According to the plane cross-section assumption and static equilibrium, the formulas for the bearing capacity of autoclaved fly ash masonry short column (AFAMC) can be deduced. And in the deducing process, we should consider the stress-strain relations of the various masonry materials. In this paper,...
Proceedings Article

Stress-strain Behavior of Steel-Polypropylene Hybrid Fiber Reinforced Concrete Under True Triaxial Compression

Jie Su, Yin Chi
This paper investigates the stress-strain behavior of steel-polypropylene hybrid fiber reinforced concrete (HyFRC) under true triaxial compression. Three definitive lateral pressure combinations of 5/10MPa, 4/15MPa and 3/20MPa were performed for different fiber volume fractions and aspect ratios. Axial...
Proceedings Article

Seismic Response Analysis of Medium Pressure Vertical Multilayer Pipe Support System in High-rise Building

Ge Cui, Hehui Wang, Chenqiong Ye, Xueyi Yin, Bo Liu
Based on finite element analysis software ANSYS, using shell elements and space beam elements, finite element model of the vertical multilayer pipe support system of high-rise building is created. The dynamic characteristics and seismic response of piping system are analyzed under earthquake load using...
Proceedings Article

Wind Vibration Response for a New Type of Reticulated Shell

Fan Wang, Xing Wang
Plate-cone reticulated shell is a new type of reticulated shell with good mechanical behaviour and technical economy. Wind-induced vibration response characteristics of plate-cone reticulated shell are studied, the fluctuation wind loads are simulated by using the wave superposition method in the paper....
Proceedings Article

Design and optimization of the pipe fixed supports in the super high-rise building

Ye Huang, Hehui Wang, Xinyu Hu, Yan Li, Zhihua Wang
The finite element (FE) technique is applied to conducting the strength design and optimization of the vertical pipe fixed supports in a super high-rise building. The FE model of the fixed support is created and the stress distributions are calculated by using ANSYS. In this paper a new method is given...
Proceedings Article

Experimental Research on Bearing Capacity of Cold-formed Steel Double-Shaft Built-up Long Columns

Qun Wang, Xin’E Yan, Qian Zhang
Cold-formed steel built-up columns are the main components in cold-formed steel framing residential buildings, however, there are short of reliable experimental and theoretical study on cold-formed steel built-up columns in China. Technical code of cold-formed thin-wall steel structures (GB50018-2002)...
Proceedings Article

Analysis on Static Performance of KT Type Circular Steel Pipe’s Tubular Joint

Xian Liao, Zhongqing Wang, Jun Yong
the tubular joint of KT type circular steel pipe has abundantly existed with wide application of truss structure of long-span steel pipe. This paper analyzes the influence on joint stiffness through three major factors: thickness of major pipe t0, diameter of branch pipe di, the included angle between...
Proceedings Article

Time Effect Research of Static Pressure Pile Based on Low Strain Dynamic Test

Jiatao Wang, Wei Zhang
Through the low strain dynamic test in engineerings, we found that the wave velocity is raised with time. Reasons for the phenomenon are analysed with the theory of stress wave propagation. We found that the increasing of the velocity of the test pile is mainly effected by the of lateral soil, because...
Proceedings Article

Study of Tunnel wall set effect on the FDS simulation results

Yang Guo, Shu.Hui. Xu, Qingru Hao
Recently there exist majority of simplified simulation situation of tunnel wall.To analyse how the simplified situation influences the result of simulation, this paper study conducted analysis of a certain range of temperature distribution within tunnel through the tunnel physical experiment. At the...
Proceedings Article

Application of Close-Range Photogrammetric Technology to Monitor Slope Deformation

Haopeng Huang, Jinghui Liu, Hu Li, Yuan Zhang, Junshu Gao, Ye Tian
Close-range photogrammetric technology has the advantages of simple equipment, real-time monitoring, high automation level, high precision and non-contact surface measurement. This article is based on a monitoring example of a slope by digital close range photogrammetric technology and compared with...
Proceedings Article

Sensitivity Analysis of Material Deterioration on Seismic Performance Evaluation of Bridges

Jintao Cui, Peng Cui
The steel corrosion is usually displayed in the form of cracking and spalling of the concrete cover due to the expansion of corrosion products. Structural distress due to either loss of bond along the steel/concrete interface resulting from splitting of the concrete cover, or reduction of the cross-sectional...
Proceedings Article

Study on The Methods of Ground Improvement for Widening Expressway on Soft Ground

Hao Du, Jinghui Liu, Yu Yuan, Ye Zhang, Shijie Song, Hao Xiao, Xiaokang Huang
The highway widening on soft foundation is a new stage of the highway construction, which will be an important issue for country to solve urgently and has to solve at the start of this century. The highway widening on soft foundation inevitably involves the combination of new and old road, the connection...
Proceedings Article

Summary of methods to calculate the shearing resistance of CFRP

Huaguo Gao, Xiaoguang Cai
This article summarizes the following, based on the blind area of CFRP shear bearing capacity calculation and combined with several calculation methods given by some domestic scholars in recent years. the literature [1] derives the shear strength formula by the product of the elastic modulus and effective...
Proceedings Article

Research on new pavement structure in the Qinghai Tibet area

Xuesong Mao, Zhe Huang
Pavement structure directly affects the performance of the road, and the high altitude and low temperature of the Qinghai Tibet Plateau has a great influence on the pavement structure. Based on the investigation of Qinghai Tibet highway, Sichuan Tibet highway line five, summarizes the existing pavement...
Proceedings Article

Damage identification method of suspension bridge structure based on wavelet - artificial immune algorithm

Deqing Guan, Deng Luo, Ran Li
Structural damage detection and diagnosis is a very important factor to the structural safety. Wavelet transform combined with artificial immune algorithm can be used for improving the application of artificial intelligence algorithms.for structural damage detection.The result of the simulation and verification...
Proceedings Article

A New Tensile Steel Strip Cable Dome and A Force-finding Method of Approaching Initial Shape

Dongzhi Guan, Mingliang Zhu, Huanzhi Jiang, Xueqi Chen, Zhengxing Guo
Cable domes has been widely adopted around the world. A new tensile steel strip cable dome is proposed and a force-finding method of approaching initial shape is introduced. It is easy to be constructed by tow-lifting method without many scaffolds and connect rigid materials directly. The force-finding...
Proceedings Article

Study on mechanical characteristics of deep engineering rock materials

Taoli Xiao, Ming Ai, Fei Teng, Zhonglin Wang
According to the characteristics of deep diversion tunnel of Jinping II Hydropower Station located in the high field stress condition, for its surrounding rock, i.e. marble, the conventional triaxial test and pre-peak unloading test are carried out. Then study on its mechanical characteristics through...
Proceedings Article

The Experimental Study of the Strength Characteristics of Blast Furnace Water Quenching Slag-High Sulfur Tailings Filling

Fu-Lin Wang, Zhong-Kang Wang, Shi-Jiao Yang, Zi-An Tang, Jie Liu
In order to solve the problem of low strength and disintegrate easily using ordinary Portland cement-high sulfur tailings filling, we used blast furnace water quenching slag instead of Portland cement which was regarded as cement material to manufacture whole tailings paste for underground filling. We...
Proceedings Article

The preliminary study of diagnosis techniques for the building defects with damp by infrared thermography

Longyu Wan, Zukang Lei
Since a large amount of building defects arise from inside and are invisible at the beginning, the most common methodologies to assess defects are not able to predict a new defect or extension of an existed one. On this study, infrared thermal imaging technology and traditional methods of building diagnosis...
Proceedings Article

Ultimate Capacity of Reinforced Concrete Rectangular Members Subjected to Combined Actions

Pu Wang, Quansen Wang, Zhen Huang
Rectangular reinforced concrete members are widely used in building structures and bridge structures. The failures of these members usually occur under the combined loading actions of axial force, bending, shear and torsion. In this paper, a calculate model is established by determining the shape of...
Proceedings Article

Damage assessment of the longitudinal connection of simple supported-to-continuous girder bridges constructed with hollow slabs

Jin Liu, Jinquan Zhang, Wanheng Li, Bo Diao
Simple supported-to-continuous girder bridges are commonly and widely used in bridge engineering in China. For this type of bridges, normally, the longitude connections are casted in-site by concrete. The quality of the casted concrete is difficult to control. After a large number of field surveys, damages...
Proceedings Article

Study on Silting Characteristics of the Trial Dredged-Trough for Immersed Tube Tunnel

Jie He, Xinsheng Zhao
On the basis of studying water-sediment movement in the Lingdingyang sea area, sedimentation characteristics of the trial dredged-trough of immersed tube tunnel of HZMB are analyzed, with 17 groups of underwater topographic survey data and the measured results of fluid mud and silt unit weight in the...
Proceedings Article

Analysis to Bulk Density in Trial Dredged-Trough for Immersed Tube Tunnel

Jie He, Wenjie Xin
On the basis of studying water-sediment movement in the Lingdingyang sea area, sedimentation characteristics of the trial dredged-trough of immersed tube tunnel of HZMB are analyzed, with 17 groups of underwater topographic survey data and the measured results of fluid mud and silt unit weight in the...
Proceedings Article

Research on Different coupling methods in Jack-up Simulation

Yonggang Cui, Xiaojian Pi, Shilun Feng, Jingjing Li, Chen Bian
Jack-up platform occupies an important position in marine oil exploitation due to its advantages. A finite element model of a Jack-up was constructed and analyzed. And Different coupling methods were used to simulate the links between the boat hull and legs. The two kinds of coupling methods are the...
Proceedings Article

Comparison between equivalent spring element method and additional mass method in nuclear power structure

Jin-Xiao Wang, Meng-Yan Song, Peng Fu, Feng Shen, Fen He
In order to study the effect of fluid on the structural dynamic characteristics, in this paper, a three-dimensional spring element was applied to the dynamic analysis of the fluid. Based on the simplified model of nuclear power structureCAP1400, the upper water tank of concrete containment was analyzed...
Proceedings Article

Stability Analysis Based on the Full fill Subgrade of Slope Product Section

Longqi Liu, Xuesong Mao, Liyun Wang, Zhe Huang
China is a country with frequent geological disasters,a large part of the geological disasters and the damage of the roadbed is caused by the instability of the slope product . In this paper, the slope product is divided into the colluvial slope product ,the residual slope product and the alluvial slope...
Proceedings Article

The Temperature in Xinjiang-Tibet Roadbed Variation Analysis

Liyun Wang, Xuesong Mao, Shuguang Luo
The temperature change in roadbed is a process of dynamic change, is the key factor that influence the performance of subgrade. In order to research the subgrade temperature changes in permafrost regions, based on national highway 219 line Xinjiang-Tibet highway monitoring project, observed the temperature...
Proceedings Article

Analysis on Influence Factors of Grouted Anchorages for CFRP Bars

Peng Wang, Changqing Zhang, Xiaoyi Wang, Yun He
Force mechanism of CFRP reinforced anchorage is discussed in this thesis, where epoxy resin is used as adhesive agent. Taking the length of anchorage, the load, the thickness of resin and elastic modulus etc. as the main parameters, the shearing stress on the interface between tendons and resin were...
Proceedings Article

Study on the influence line of plane statically truss by MAPLE

Ming Bo Zhao, Xiao Hui Luo
This paper elaborate the application of MAPLE in the calculation of the influence line of the plane statically determinate truss, accurate calculation of the axial force of a plane statically determinate truss by symbolic computation in MAPLE, that we can get the influence value by axial force to plot...
Proceedings Article

Static characteristic analysis of equivalent spring element of the triangle constant element

Hong-Ye Su, Yang Zhao, Ge Tian, Feng Shen, Sheng-Jun Zhang, Xiang-Rong Fu
In this paper, the equivalent mechanical spring model of the three-dimensional continuumis studied. And the sectional area of the equivalent spring element is obtained based on the displacement equivalent principle. The equivalent model is statically indeterminate trusses system of spring. The 3D spring...
Proceedings Article

Prestress loss of prestressing tendons with asymmetrical layout parabolas

Shanwen Zhang, Xiuxin Wang
According to the equilibrium condition of geometry relationship, we derived the formulas that can be used to calculate the loss of prestress of prestressing tendons with the double-end tensioning and the asymmetrical arrangement parabolic curves. Through an example of the bridge engineering, we described...
Proceedings Article

Parameter Studies on the Ultimate Bearing Capacity of Tube-Gusset Joints

Qing Li Wei, Xia Yan Shu
A parameter study is carried out to investigate the influence of various factors. The axial force, the width of the stiffening ring, the height of the ring, the diameter of the tube, the wall thickness, the length and the thickness of the joint are considered. At present, the ultimate bearing capacity...
Proceedings Article

Mechanical properties of gusset-tube plate joints

Qingli Wei, Xia Yan Shu
A nonlinear finite element analysis is carried out for the whole process of elastoplastic deformation considering both material and geometry nonlinearity, and the limit states of damage and failure mechanism were studied. According to the analysis, the joints studied show great bearing capacity, which...
Proceedings Article

Natural Vibration Analysis of Long Span Suspension Bridges

Jianing Hao
The vertical and torsional vibration basic frequency estimation formula of suspension bridge on “Wind resistant Design Specification for Highway Bridges” is introduced. Finite element model of HUMEN suspension is established. Whole vibration models and frequency are obtained by modal analysis, and it...
Proceedings Article

Research on Self-thermal Insulation Wall Construction Technology of Autoclaved Aerated Concrete Block

Jikui Miao, Jia Tao, Yuqi Liu
To promote the application of autoclaved aerated concrete(AAC) block self-thermal insulation system in severe cold and cold zones, this paper proposes the construction of self-thermal insulation wall, shear wall insulation treatment measures and the detail construction of beam column thermal bridge....
Proceedings Article

Pullout Bond Properties of Grout-Filled Mechanical Splice for Precast Concrete Construction

Yongfeng Zheng, Zhengxing Guo, Xie Ming
A new type of grouting coupler for rebar splicing was fabricated with common seamless steel pipe by cold rolling technique. Seven splice specimens were prepared with the sleeve and tested under pullout load. The test results have shown that given a proper embedded length, the specimens provided good...
Proceedings Article

Internal Resonance and Active Vibration Control of Tracked Emergency Ambulance

Yan-Ying Zhao, Jia Yin, Fang-Gui Yu
In the present paper, the multiple scales is applied to investigate the internal resonance and vibration suppression of the system of tracked emergency ambulance. The delayed feedback control is employed to suppress the amplitude of the primary system when the 1:2 internal resonance occurs. The effect...
Proceedings Article

Experimental study on behavior of precast shear wall using post-cast at the connection

Qing Zhi, Jingran Song, Zhengxing Guo
The seismic behavior of precast concrete structure wall mainly depends on connection of the shear walls, and constrains at edge elements. The strength of concrete in embedded column area is also especially important. This paper explores a mothod of connection for prefabrication that was post-cast at...
Proceedings Article

Study on FWD applying to layered control compaction quality

Limin Yang, Yushan Ye, Jiangwei Wang, Chengchao Guo
Treating soil compaction is the key to its construction quality control, but now its compaction evaluating indicator does not match with design specification in China, which makes design and construction control having disjointed phenomenon. Based on the deflections tested by FWD, the relationship between...
Proceedings Article

Preliminary Experimental Study on Heat Transfer Characteristics of Wall with Automatic Adjustment of Heat Transfer Coefficient

Zhiyong Li, Liyang Zhang, Yuqing Zhao, Ye Zhang, Qianqian Shi
A wall with auto-adjusted heat transfer coefficient based on the outdoor temperature is introduced. The mechanism of the bimetallic strip wall with auto-adjusted heat transfer coefficient was given. The thermal performance of the variable thermal resistance layer in different conditions was preliminary...
Proceedings Article

Analysis of Wave Localization in a Disordered Periodic Viaduct Undergoing In-plane Vibration

Guo-Jun Sheng, Qian Huang, Man-Qing Xu
Based on the wave transfer matrix method, wave localization in a disordered periodic viaduct undergoing in plane vibration is investigated according to the Wolf’s algorithm in this paper. With the proposed model, the influences of the pier-height and beam-length disorders on the wave localization are...
Proceedings Article

Dynamic Response of a Period Viaduct In-plane Vibration Under Spatially Non-uniform Seismic Wave

Qian Huang, Guo-Jun Sheng, Man-Qing Xu, Jiang-Qian Zhao
By using the Floquet transform method and based on the periodic structure’s theory, a theoretical model has been developed to determine the dynamic response of the periodic viaduct accounted for the non-uniform seismic excitations at different piers of the viaduct in this study. Numerical results show...
Proceedings Article

Solution of a 3-D Multilayered Poroelastic Medium Subjected to Moving Load with TRM Method

Guo-Jun Sheng, Qian Huang, Man-Qing Xu
The focus of this paper is to develop a transmission and reflection matrices (TRM) method for 3-D layered poroelastic half-space subjected to moving load. Applying the triple Fourier transformation, the general solution for the displacements, stress and pore pressure are derived from the governing equations...
Proceedings Article

Analysis and design of the tower pier anchor of steel tower cable stayed bridge

Dong-Li Sun, Bin Xie, Xu Kai Liu, Jing Cao
The No.4 bridge of Erdos Wulanmulun River city is a steel-concrete composite beam of cable stayed bridge. The Twin Towers bridge with double cable planes, tower adopts steel bridge tower. This paper introduces the design of structural steel pylon pier anchor and computational analysis of the situation....
Proceedings Article

The Triple-shear Unified Elasto-plastic Constitutive Model and the slope stability analysis

Xiaomei Fan, Xiaoyu Chen, Xiaorong Hu
The traditional method in solving geotechnical engineering problems can only come to the theoretical solutions. The triple-shear unified elasto-plastic constitutive model is proposed based on the triple-shear unified yield criterion, and the secondary development to ANSYS with the complicated practical...
Proceedings Article

In Site Investigation and Statistical Analysis of Live Loads of Large Span Frame Structure during Construction

Zhengwu Ye, Chaojun Jian, Changming Hu, Yili Yuan
Combine with a large span frame structure project ,a survey on live loads of this building has been conducted,and the survey lasted the whole construction period of the building, the loads in the four phases of template erection, steel banding, concrete pouring and curing were recorded. According to...
Proceedings Article

Study On the Beam Bending Test of Basalt Fiber and Wood Composite Board

Zhiqiang Li, Jiansuo Ma
Experimental study on the flexural bearing capacity of basalt fiber board and wood composite beam. Focuses on the composite plate of efficient splicing method and the paste of the basalt fiber in the beams bearing capacity, deformation and strain improvement. In addition to the structural measures have...
Proceedings Article

Numerical Analysis of Super-Tall Buildings with Replaceable Members

Wenyan Shan, Yun Chen
The concept of installing energy dissipation devices in a coupling beam of shear wall structures has been proposed and investigated. The energy dissipation device is used to dissipate seismic energy and is easy to be replaced in the post-earthquake event. According to the practical design methods of...
Proceedings Article

Analysis of Stability of Bars with Continuously Varying Cross Section by Means of Differential Equation of Matrix

Yu Zhang
A general differential equation of matrix with variable coefficient is derived for analysis of stability of the various bars with continuously varying cross section and different constraints at ends, which beneficial for engineering design.
Proceedings Article

Research in the Temperature Effect of Corrugated Steel Webs Combined Bridge

Honglin Ma, Xiaoyan Liu, Chen Yao, Yuan Cao
It is necessary to research the temperature field because corrugated steel web PC combined box girder is made from different material in the roof, floor and web, and temperature distribution in the sunshine is also different. This paper relies on a flyover as the actual engineering background, combing...
Proceedings Article

Study of three-dimensional NMR forward modeling using finite element method

Zhiping Ren, Xiu Li, Yu Lei
In order to improve the accuracy of groundwater detection, the forward problem of NMR response in three-dimensional is discussed in this paper. The three-dimensional magnetic field equations and boundary conditions in frequency domain with the loop source are derived by Maxwell's equations and then the...
Proceedings Article

Seismic Response Analysis for Shallow Buried and Unsymmetrical Loading Tunnel

Lin Li, Ke Si Wang, Du Gong Yang, Sheng Tao Peng
Based on analyzing the damage feature of shallow buried and unsymmetrical loading tunnel, this paper studies the seismic reaction characteristics of this kind of tunnel via numerical simulation and comparison of the similar tunnel bearing symmetric load. The results indicate that the tunnel is more likely...
Proceedings Article

Influence of discontinuous-type hood parameters on high-speed railway tunnel aerodynamic effects

Feng Geng, Yifan Yang, Dingcheng Yu
Based on the one-dimensional unsteady compressible non-isentropic flow theory and round-piston radiation theory with infinite baffle plate, the aerodynamic effects generated by a high-speed train through a tunnel with the discontinuous-type hood were numerically investigated, which shows the discontinuous-type...
Proceedings Article

Research for criteria to define the bottom area of assembled foundation of power transmission line in calculation of the compressive load

Yongfeng Cheng, Weifeng Zheng, Xianlong Lu
The assembled foundation of power transmission line, which is composed of concrete lath and angle steel scaffold, has been applied in practice. But due to the gap of laths, the bottom area of the foundation is not clearly defined when calculating the compressive load. Theoretical study on the ultimate...
Proceedings Article

Study on the load bearing properties of eccentric assembled foundations of transmission lines

Yongfeng Cheng, Weifeng Zheng, Qingbin Zhao, Hongqiao Zhang
The assembled foundations of transmission lines can effectively promote the standardization, modularization and mass productions of tower foundations. Meanwhile, they can ensure a higher quality, improve the efficiency and mechanization level of construction, and make innovations in the construction...
Proceedings Article

Influence of Circular Plate’s Local Geometric Feature on The Sinking Performance in Soft Soil

Gang He, Ting Xia, Jiawei Xu, Peng Hu
To study the influence of local geometric feature on circular plate’s sinking performance in the soil, radial and circumferential grooves are added at the bottom of circular plate separately. Smoothed particle hydrodynamics and finite element method(SPH/FEM) are used to simulate the sinking process....
Proceedings Article

Deposit Collapse and Landslide Stability Analysis

Xiaoqin He, Yunwei Meng
According to the meteorological characteristics of deposit a collapse and landslide characteristics, topography, stratum lithology, geological structure and characteristics and hydrogeological conditions of the earthquake pointed out that the landslide happened under the combination of internal and external...
Proceedings Article

Digital Model Construction and Precision Structural Analysis Of Bridges Based On Full Field and Life Circle Intensive Measurement

Xiang Rong Yuan
Two aspects are needed to improve in the research and practice of current bridge structural test. First, test data is incomplete compare with calculation data, and survey times are insufficient compare with the bridge life circle. Second, although the analysis and calculation accuracy can not be always...
Proceedings Article

Analysis on the Coupled System of Vibratory Roller Vibration Wheel and Soil

Jing Wang, Wei Zhang, Hongyu Xu
In this paper the intelligent vibration road roller system is simplified to three degrees of freedom dynamic system the differences between the dynamics model with past is that we not only considering two degrees (vibration wheel the soil or frame wheels) But at the same time considering vibratory wheel...
Proceedings Article

Influence of Monomolecular Film Evaporation Retardant on the Plastic Cracking and its Application on Concrete

Wei Wang, Wen Xu, Yujiang Wang
The early age water loss of cement based materials can cause plastic shrinkage cracking and crusting and peeling which will damage the application property and durability of concrete. Through emulsion system of small molecule super amphiphilic compound, stable and compact monomolecular film evaporation...
Proceedings Article

Application Study of 300mm Large Size Angle Steel in ±1100kV Ultra-high Voltage Tower Transmission Tower

Zifu Zhang, Qinghua Li, Haijun Xing, Chuanjiang Tang, Xin Yuan
The limb width and the limb thickness of the large size angle steel are very great, section area is more greater than that of the angle steel in the conventional power transmission tower, which can greatly improve bearing force of the single member. It is considered feasible after analysis that the 300mm...
Proceedings Article

A study of modal strain energy change ratio method for the damage identification of functionally graded Euler-Bernoulli beam

Lixin Huang, Shiyan, Yue, Zhongming Hu, Zhenzhen Yang
An identification method based on modal strain energy is proposed to identify the damage of a functionally graded (FG) Euler-Bernoulli beam. Based on the strain energy of the FG Euler-Bernoulli beam, the expression of element modal strain energy (EMSE) is developed for the two-node beam element with...
Proceedings Article

Calculation of flexural capacity and rigidity for RC floor strengthened with bilateral steel-slab-bonded

Ge Wu, Yanyang Zhao, Meng Guo
Based on interrelated experiments research of RC beam strengthened with unilateral steel-slab-bonded and practical engineering needs, the technology of RC floor strengthened with bilateral steel-slab-bonded is presented. According to section internal force equation relation and classical theory about...
Proceedings Article

Relationship between Crystalline Size, Activity and Expansive Properties of MgO Expansive Agent

Hua Li, Yongsheng Zhang, Qian Tian, Anqun Lu
The quantitative relationships between the calcination temperature and the crystalline characterization, the activity and the expansive properties of MgO expansive agent were explored through XRD-Scherrer formula, the citric acid method and the length measurement method. The results show that, under...
Proceedings Article

Shear Strength of Trapezoidal Corrugated Steel Webs

Li Zhu, Wenyu Ji
Shear strength of trapezoidal corrugated steel webs is an important issue for the design of box girder bridges with trapezoidal corrugated steel webs. In this study, a shell element FE model of trapezoidal corrugated steel webs is firstly built for the further analysis of shear behavior. Extensive parametric...
Proceedings Article

Analysis of soft soil subgrade construction

Kefei He, Jiachun Li, Weiping Tian
The rapid development of modern economy accelerated the popularity of the car, but also on China's highway construction put forward higher requirements. In order to meet the needs of China's economic development and the rapid spread of the car, in recent years, China's highway construction project continues...
Proceedings Article

Research on iron ore tailing improving Compressive Strength of Alkali-activated Slag Foamed concrete

Junzhe Li, Yuze Tian, Qiubai Sun, Changsheng Pan
The research on whether can iron ore tailing improve the compressive strength of alkali-activated slag foaming concrete is conducted. The experiment shows that too little or too much powder from iron ore tailing will reduce the compression strength of alkali activated slag concrete, when powder from...
Proceedings Article

Experimental Study on Deformation and Destruction of Post-peak Fractured Rock Mass

Luchen Zhang, Shuchen Li, Yang Ping
The stress-strain curve of fractured rock mass can be divided into two parts, the pro-peak and post-peak. The pro-peak part of the rock stress-strain curve is generally stable and its mechanical behavior can be described with classical strength theory. Rock post-peak stress is very complex and generally...
Proceedings Article

DEM Simulation and Analysis for Drop-Weight Experiments of Barite Concrete Beam

Zhenfu Chen, Longbin Li, Qiuwang Tao, Yuanchu Gan, Xiqi Liu
A meso-scale discrete element model(DEM)of barite concrete beam was developed by the aid of DEM software PFC2D. Using this model, numerical simulations of the test conditions in meso-scale were conducted as well. The dynamic failure process of barite concrete was simulated by changing the quality and...
Proceedings Article

Surface Flow Field Measurement Based on Optical Flow

Yu Zhang, Qinghui Jiang
Non-contact surface flow field measurementhas been widely applied in many engineering applications. This study developed a channel instantaneous flow field measurement system based on calculation of optical flow. Some key issues including spatiotemporal filtering and additive fusion, perspective correction...
Proceedings Article

Research of Span Ratio of Non-abutment Slant-legged Rigid Frame Bridge

Xue-Shen Dong, Xiao-Jun Ning
This paper mainly makes the research of the influence on internal force and displacement of non-abutment slant-legged rigid frame brige by different span ratio. The results of the research indicate that as the change of span ratio,the internal force and displacement of each control section of brige structure...
Proceedings Article

Stress analysis of the through arch bridge double boom system

Ke-Xin Li, Xiao-Jun Ning
This paper by analyzing the existing double boom system, and combined with engineering examples the through arch bridge in the mobile load that is the role of vehicle load force each boom situation. Studied double boom system in response to vehicle load internal forces, also studied a boom when suddenly...
Proceedings Article

Great span continuous rigid frame bridge piers earthquake response analysis

Xing-Shun Liu, Jian-Tao Peng, Xiao-Jun Ning
In order to analyze the form of piers span continuous rigid frame bridge seismic impact on the order of a continuous rigid frame bridge engineering background, the use of large-scale professional finite element analysis software MIDAS CIVIL build dynamic analysis models were different cross-sectional...
Proceedings Article

The Research on Continuous Rigid Frame Bridge Girder Design Parameters impact Based On Orthogonal experiment

Zhongchen Wei, Zeng Wu, Xiaojun Ning, Yao Lu
The design parameters, central beam high-span ratio, high-span ratio at root of the beam and beam bottom parabola, on continuous rigid frame bridge girder were valued in an appropriate range. Based on orthogonal experiment and numerical simulation, the effects of above parameters to the comprehensive...
Proceedings Article

Flexural vibration reduction of phononic crystal floating bridge

Lin Han, Xiao-Mei Li, Yan Zhang
The phononic crystal (PC) concept is introduced to the floating bridge, in order to reduce the flexural vibrations. Four kinds of PC floating bridge models, including the identically hinged and two-component rigid connected, section-hinged, cell-hinged cases are defined. The corresponding structures...
Proceedings Article

The state-dependent dilatancy properties of rockfills considering the influence of gradation

Xiao-Mei Li, Lin Han, Yun-Fei Guan
The stress dilatancy theory has been succeeded in demonstrating the deformation properties of clay. However, the deformation behaviors of rockfills are related to the stress and its initial state, so the stress dilatancy theory cannot apply to the rockfills directly. We take the state-dependent dilatancy...
Proceedings Article

Analysis of the 3-D response of RC frame-bent structures subjected to multi-dimensional earthquakes

Lei Guo, Xiaohong Bai
Under the two-dimensional components of seismic action, the seismic response spectrum method was applied to irregular structures that were constructed in order to replicate the main powerhouse of a large thermal power plant with a frame-bent in the transverse direction and a frame-shear wall in the longitudinal...
Proceedings Article

Experimental study on hydraulic rock damage

Junzhe Li, Jun Zhang, Lixia Sun
The mechanical properties of rock mass change significantly in water pressure , and causing coal-rock mass deformation and instability, then leading to significant engineering accident. Based on hydraulic damage experiment to explore the mechanical process that water pressure prompted crack propagation,...
Proceedings Article

Simulation Study on Gas Migration Law in Goaf Based on Fluent

Yu-Hui Ren
In this paper, the physical similarity theory and simulation method is based, through a coal mined zones similar simulation experiments obtained goaf under varying ventilation rate and different experimental conditions of high temperature and closed and so the distribution of methane concentration, and...
Proceedings Article

Gaussian Curvature Connection of Bézier Surfaces

Qingxian Meng, Jinqiu Liu, Huihui Meng
Based on the properties of Gaussian curvature connection and the theory of differential geometry, a sufficient condition for Gaussian curvature connection between two adjacent Bézier surfaces is obtained. Next, a new method called Gaussian curvature connection is put forward by using the condition. The...
Proceedings Article

Heat treatment furnace area cover crane girder factory owner durability analysis of a cold rolling plant

Hongbin Liu, Yijiang Li
A old rolling factory owners plant cover type heat treatment furnace area crane beam, is riveting real abdominal crane beam, has been working more than forty years, and repeatedly subjected to dynamic loading crane, will produce fatigue failure of steel, especially at the rivet connection work Experience...
Proceedings Article

Test and analysis of the main crane girder stress and the dynamic characteristics of column

Hongbin Liu, Shouqing Liu
Due to the long construction time of a steel mill, carried on reinforced many times, multiple replacement and an increase in crane, the pillars of the main building now have a larger vibration. Roof damage Serious. Plant leak serious, in order to guarantee the reliability of building structure, needed...
Proceedings Article

Research on 3D modeling technology of large scale scene based on 3ds Max

Li Wang
In large scenes, the types and quantities of objects are many, and the shapes are different. In the process of using 3ds Max to construct the large scale scene, if the modeling method is inappropriate, it will not only produce the problem of model points, the number of faces and the decrease of the degree...
Proceedings Article

Research on mechanical properties of C30 Model Steel Fiber Reinforced Rubber Concrete

Zhide Huang, Mowen Xie, Zhenyu Xiang
As a new type of modified fiber, model steel fiber has both the appearance and function of steel fiber and the advantages of synthetic fiber. In order to make up for the mechanical properties of rubber concrete, the basic mechanical properties of C30 model steel fiber content reinforced rubber concrete,...
Proceedings Article

The performance research of a solar heating system in Tangshan

Bin Yang, Yashuai Yang, Degong Zuo
In this paper, we study the heating building for Tangshan one residential and the project chooses solar vacuum tube collector. The system is running around the water temperature, water flow and solar radiation test record. We calculated the instantaneous collector efficiency, system instantaneous efficiency...
Proceedings Article

Seismic control effect of lattice grid structure with SMA spring-friction bearings

Peng Zhuang, Wenting Wang
A new type of seismic isolation device, SMA spring-friction bearing (SFB) is developed and its application to lattice grid structures is investigated in this paper. First, a simplified restoring model is derived to simulate the hysteretic behavior of the SFB. Then, a SFB specimen is fabricated and tested...
Proceedings Article

The research on physical simulation of land subsidence in China

Aihong Zhou, Shaokang Li, Chenhui Wang
The land subsidence has become a common widespread geological disaster in the world. With the acceleration of urbanization and industrialization, the role of human economic and engineering activities in the land subsidence becomes the decisive key factors. Land subsidence has become increasingly a threat...
Proceedings Article

Soft Sensing Based on Probabilistic Neural Network

Qiang Wang
Aimed at the characteristic of nonlinear and non-stationary of pressure drop, in this article a flow regime identification soft sensing method using wavelet-packet combined with probabilistic neural network is put forward. PNN is used as classier due to its good generalization ability and fast learning...
Proceedings Article

Numerical simulation for bolt tension prediction using simplified 2D finite elements model

Fei Yang, Pengdong Gao, Chu Qiu, Yongquan Lu
This paper presents numerical simulation using the 2D finite elements model to determine bolt tension of a bolted joint. The effects of bolt bending and sharing forces will be considered for the analysis of the global mechanical behaviour of the connection. The whole analysis execution is controlled...
Proceedings Article

The Crack Evolution and Damage Development of Coal Uniaxial Compression Failure under Different Gas Pressure

Peibo Han
To study the influence of gas pressure to coal failure process and crack evolution, using coal solid-gas coupled mechanics testing system, conducted the raw coal uniaxial compression failure experiment under different gas pressure; the evolution process of surface micro-cracks was synchronously observed...
Proceedings Article

Study on bridge structure of bridge crane

Hai-Ying Li, Hua-Liang Wu
In this paper, the large finite element analysis software - ANSYS is used to create the model of bridge-crane frame structure. Using ANSYS, we established bridge-crane frame structure of finite element model. Creates the stress and stiffness analysis under different conditions using the ANSYS models...
Proceedings Article

Dynamic and Static Characteristic Analysis of the Main Shaft System

Xinyu Wang
Main shaft system includes a main shaft, bearings and driving medium. The performance of main shaft system has important influence on the machining quality and the productivity of machine tool. It is the important factors that affect job performance. Main shaft supporting structure, support number and...
Proceedings Article

Research of Optical Cable Overhead Laying Automation

Hong Liang, Mi Zhang, Jianmin Peng, Dajian Jian, Le Chang, Wei Zhou
fiber-optic communication has become the primary means of information transmission nowadays. As the carrier of information transmission, the fiber optic cable has a variety of laying methods such as the direct burial, pipelines, overhead laying and so on. In this paper, starting from the current status...
Proceedings Article

The vibration characters analysis of tube compressor

Xiaolong Zhang, Keke Gao, Zhen Shen, Yonghui Xie
The finite element model of rotor-bearing system in large tube compressor based on the beam element which can be used to analyze gyroscope effect is established and the bearing parameters changed with rotation speed are considered. The first and second critical speed of rotor-bearing system can be found...
Proceedings Article

An Intelligent Exploitation System for Underground mine

Yuan Sheng Zhang, Xiao Cong Yang
With depth increasing, mining environment of underground metal mine become severely, for the purpose of obtaining higher efficiency and safety in mining process, based on the framework of EPC system network to establish a completed efficient intelligent system for underground metal mine exploitation...
Proceedings Article

Mathematical Analysis of the Rolling Bearing Vibration Corrugated Surface

Wei Ding
In order to study the surface ripples caused by outer ring vibration, we took the outer ring raceway and rolling body as the research object of the contact. The surface corrugation of the inner ring or outer ring would cause a periodic change of the distance between the inner and outer ring raceway....
Proceedings Article

Analysis on Stress Distribution of the Piston Rod and the Bush while Cylinder Impact

Dongyun Guo, Tao Wang
The repeated movement between the piston rod and the barrel during the process of cylinder impact will lead to leak and shorten the life of the cylinder. In order to research the distribution of dynamic stress and deformation of the piston rod and the bush when the piston rod suddenly stops at the end...
Proceedings Article

Anti-shock Analysis of Marine Ventilation Grid in Time Domain

Huan Jie Wang
Based on the modern impact theory, an anti-shock model of the marine ventilation grid was built to simulate its anti-shock performance in time domain with the consideration of the contact stress. The stress was obtained from the anti-shock simulation which could be useful for the anti-shock design and...
Proceedings Article

The Higher Order Crack-Tip Fields for Anti-plane Crack in Exponential Functionally Graded Piezoelectric Materials

Yao Dai, Xiao Chong, Jingwen Pan
The crack tip fields for anti-plane crack in functionally graded piezoelectric materials (FGPMs) under mechanical and electrical loadings are investigated. The elastic stiffness, piezoelectric parameter and dielectric permittivity of FGPMs are assumed to be exponential function of y perpendicular to...
Proceedings Article

Higher Order Crack Tip Fields for Physical Weak-Discontinuous Crack of Linear FGMs Plate with Reissner’s Effect

Xiao Chong, Yao Dai, Shimin Li
The higher order crack tip fields for an interfacial crack between homogeneous material and linear functionally graded materials (FGMs) plates is studied. The governing equations are derived for weak-discontinuous problems of FGMs plates considering transverse shear deformation . The higher order crack...
Proceedings Article

Numerical Study of Effects of Different Base on Asphalt Pavement Responses Using FEM

Lu Bai, Guo Cong, Jianping Zhu, Peng Li
The current trend of flexible pavement design is moving from an empirical approach to a mechanistic based design methodology. The equations used in the empirical design method to determine the pavement structure rely on the empirical relationships between design variables. These equations are only valid...
Proceedings Article

Numerical Simulation of Humidity Distribution in Levee Road Subgrade

Wei Hao, Zhengqi Zhang, Dongsheng Chen, Jianping Zhu
A levee road is a component of a levee project. The subgrade of a levee road is the levee itself and usually it is submerged in the water. A special attention has been paid for slop stability and seepage of levee road under submerged condition during design and construction phases. This study investigated...
Proceedings Article

Exterior design of Southwest hills multifunctional mini-chassis

Haochen Han, Yongliang Wen, Tingyu Wang, Xiaorong Lv
There are the chassis exposed and the lack of cockpit problems in Southwest hills multifunctional mini-chassis. In the case of meeting practice, this exterior design has simple lines and generous model. The unique detachable box has solved the heat radiating, drainage and other key issues, and users...
Proceedings Article

Study on the creep and fatigue interaction of a Nimonic Alloy 75 under multiaxial nonproportional loading

Zhilan Zhan, Gaoping Liu
In this paper, a unified viscoplastic model was utilised to numerically simulate cyclic hardening of a nimonic alloy 75 under multiaxial non-proportional cyclic straining at elevated temperature. Description of the constitutive model and interpretation of material parameter were also presented. Constitutive...