The industry-university-research collaboration is the driving force for the innovative city construction. The innovative city construction can promote the development of the industry-university-research collaboration. This article empirically studies the interaction between industry-university-research...

To discuss about choosing the parameters of bearing capacity with over-size transport passing the bridge, this study analyzes the characteristics of designing load of heavy transportation which are different from the general cars; according to the characteristics of accidental load of heavy-cargo transportation,...

In this paper, the age factor of chloride diffusion coefficient of concrete is considered, as well as the randomness of the chloride diffusion coefficient, concrete cover depth, surface concentration, threshold concentration and age factor. Based on the First Order Reliability Method, a time-dependent...

In order to study the optimal ratio of compound suitable for crop growth ,analyzed physical and chemical Characters and crop yield of compounded soil with feldspathic sandstone and Sand (proportion: 1:1, 1:2, 1:5) by plot test. The results showed that as the content of feldspathic sandstone decrease,...

According to salt expansion and strength parameter index c and φ of sulphate salty soil, we assume that three-layer soil body of salty soil is destroyed. Assuming the network slippage diagram and using rigid-plasticity balance theorem, the calculation method of bearing capacity in salty soil area is...

Safety standards of construction companies could be improved by continuous monitoring and assessing their safety performance. Despite various methods of Safety Performance Evaluation (SPE) have been proposed, bias or errors can be made by neglecting the inter-relationships among internal variables in...

Safety risks are complicated in the metro construction, so the identification and control of the risk factors as well as the mitigation of coupling effect of risk events are the important ways to improve the safety performance of the deep foundation pit construction project. The purpose of this paper...

With the building size, shape, function more and more complex, building systems have become more complex, often to a variety of complex piping systems are arranged in a limited space, and also to meet the appropriate space requirements. In order to achieve an intuitive understanding of the key parts...

As the size, shape and function of construction projects are becoming complex, building system designs are more challenging. The traditional building system design pattern has been unable to meet the current requirement of the overall design of the building. For designers by conventional two-dimensional...

A workshop located in Tianjin suburb is selected using computer numerical simulation technique to study the indoor daylighting. The original daylighting design and optimized design are simulated and the leading indicators of natural light are compared and analyzed. Research results show that compared...

In this paper, the numerical simulation method is used to optimize the lighting simulation and energy-saving evaluation of a subway station in Tianjin. The simulation results show that after the optimization of the lighting design, the mean value of Illumination on the spring and autumn equinoxes of...

In this paper, the daylight of an underground transportation hub in Tianjin is studied by using the method of numerical simulation. It can be seen from the numerical simulation results that the average illumination in the waiting halls is 3 620.64, 4 497.60 and 2 178.97 lx in the vernal equinox and autumn...

In this paper, we have presented a new hybrid conjugate gradient algorithm for solving unconstrained optimization problems. The parameter is a convex combination of the PRP and FR conjugate gradient methods. Under general wolfe line search conditions, we proved the global convergence of the algorithm....

Nowadays, more and more waste construction waste is abandoned in China, which makes the problem of environmental protection especially prominent. The reuse of waste concrete not only helps to solve the problem of landfill, but also contributes to sustainable development of resources. However, due to...

Sprayable gypsum-based mortar was prepared by using desulphurized gypsum as cementitious material. Through the test, this study analyzed the influences of lightweight aggregate, water retention agent and thixotropic agent on compression strength, tensile bond strength, water retention rate and constructability...

Based on the monitoring data in the automatic ambient air monitoring station of Quancheng Square in Jinan from 0 o’clock of 11/06/2016 to 0 o’clock of 15/06/2016 as the typical pollution process, spatial distribution, related weather condition, ozone precursors, and regional transportation of ozone were...

Scaffolding erection is an indispensable process in high-rise building construction, which directly affects the safety of building construction.The traditional cable-stayed cantilevered scaffold erected with cantilevered beam faces the problem that the prefabricated part of the building can not be anchored.It...

The distribution and composition of the 17 organochlorine pesticides (OCPs) in selected samples were investigated with the gas chromatography coupled with Agilent triple quadrupole mass spectrometer (GC–MS). Only DDT has the highest detection rate of 100% within one year period. The total residual concentrations...

At present, the measurement of vehicle road load, in other word running resistance, are mostly coast down methods. Due to the influence of wind, the method has the problems of poor repeatability and accuracy. This paper, according the current domestic and foreign automobile road load measurement regulations...

Volatile Organic Compounds (VOCs) is one of the important atmospheric pollutants. It is important to develop materials and technologies for VOCs treatment. Adsorption is recognized as a relatively excellent VOCs control technology. Montmorillonite is selected as a base material for the preparation of...

The bellows is a flexible force structure. When a parameter of corrugated pipe is changed, the force and deformation of the pipe are changed. With double hole Steel corrugated pipes as the background, this paper adopted finite element analysis software ANSYS to make numerical simulation of the study....

With double hole Steel corrugated pipe as the background, this paper adopted finite element analysis software ANSYS to make numerical simulation of the interaction between the pipe and the soil. At the same time, the field experiment was carried out. Comparing the results of numerical simulation with...

To enhance the durability of semi-rigid base asphalt pavement, it is suggested that the asphalt treated base (ATB) layer should have certain drainage capacity to eliminate the water inside the pavement, and the crack resistance of ATB mixture should be improved to prevent and/or delay the generation...

Stirrups corrosion lead to degradation of ductility of concrete columns, the damage would transform from ductility to fragility, even to sudden destruction. In order to avoid concrete structure clasping because of the impact of earthquake and shocking, the mechanical property research of concrete columns...

In order to research on the transport of chloride ions in prestressed box girders under coupling action of salt fog and fatigue loading, the volumetric strain and porosity as the intermediate variables, coupled processes was established based on the fatigue damage criterion. And compared with the related...

To use BIM technology in the whole life cycle of railway structures, this paper builds all parts family models of frame bridge by Autodesk Revit including body and foundation of frame bridge, wing wall and its foundation, leak bed and appurtenant works on the top of bridge. Building track model by using...

The purpose of bridge construction monitoring and control is to ensure control indicators within allowable range by measuring and correcting, and to ensure the safety and quality of the bridge during the construction stage. Based on a prestressed concrete composite box-girder with corrugated steel webs,...

Being a driver in the control cabin of a shield tunneling machine is a high-pressure career. The mood swings of a driver are vital to his occupational health and construction safety; however, a driver’s emotional intensity in a noisy environment have not been considered. This study aims to investigate...

The employment of similitude theory to establish similarity among structural-acoustic systems can save considerable expense and time, if the proper scaling laws are found and validated. In this study necessary similarity conditions or scaling laws for dynamic analysis of stiffened cylindrical shell are...

A novel nonlinear system identification method based on the Multi-dimensional Taylor Network is proposed in this paper. It provides a new method to identify the nonlinear system, which can describe the dynamic characteristics without prior knowledge and can realize the prediction of the nonlinear time...

Digital Surface Model (DSM) can fully exhibit the undulate features of terrain and landmark, which has obvious advantages in buildings extraction rapidly. The experiments about oblique photography measurements during the M6.5 Ludian Earthquake occurred in Longquan village Longtoushan town on August 3,...

To study the bearing characteristics of PHC pile composite foundation, base on the analysis of soft soil characteristics, according to the design parameter, the static loading test are used to test and an-alyze the bearing capacity of the composite foundation. The results show that it is feasible that...

The Algeria North-South Expressway from Chiffa to Berrouaghia is located in Blida province and Medea province in northern Algeria, with the route along the Chiffa river valley, through the national park in Algeria, large tracts of vineyards and other agricultural land in Medea privince, and bypassing...

The Algeria North-South Expressway from Chiffa to Berrouaghia is located in Blida province and Médéa province in northern Algeria. It is the starting section of Algeria North-South Expressway in the Algeria national arterial highway networks composed of two latitudinal and one longitudinal highway. As...

Based on the 57 prefecture-level cities and three municipality (Beijing, Tianjin and Shanghai) in the Beijing-Shanghai high-speed rail economic zone over 2006–2016. We establish traditional the ordinary panel model and the spatial lag fixed model, in order to investigate the spatial spillover effect...

According to adaptability of the freight supply and demand structure in urban agglomeration, this paper studies the mechanism of freight transportation’s supply and demand in urban agglomeration, putting forward and demonstrating the adaptability theory of freight structure in urban agglomeration. Firstly,...

Blueberry was one of the five healthiest fruits in the world. We observed the phenophase in six blueberry varieties from the leaf buds germination period to the fruit maturity period. The six blueberry varieties included ‘EM’, ‘Biloxi’, ‘Pink Lemonide’, ‘O’Neal’, ‘Sweetheart’ and ‘Brigitta’, in Nanbao...

The problem of the balance of the cantilever rectangular thin plate under the uniform load is solved by using the minimum potential energy of mixed variables. The solution process is clear, and the deflection surface equation is given. Through the numerical calculation, the calculation results of the...

The nonlinear magnetoelastic problems for a bar-shell in a magnetic field subjected to mechanical loadings are studied. Based on the electrodynamics equations, magnetoelastic kinetic equations, geometric equations, and physical equations of a bar-shell, normal Cauchy form nonlinear differential equations,...

It is one of the anticorrosion measures of reinforced concrete that the concrete surface coated with organosilicon hydrophobic agents such as silane. In this paper two kinds of water cement ratio (W/C) 0.4 and 0.6 of concrete were selected, silane (isooctyl triethoxysilane) and epoxy resin coating were...

The strength of pervious concrete is relatively lower compared with ordinary concrete because of its porosity. In this paper, three reinforcing agents were used to optimize the performance of interface area between aggregate and cemented material. Specifically, the contents of FA were weight of cement...

In the process of the dry grinding machine replacing the traditional water grinding machine, the whole solution of the dust collection and recovery system of the ceramic dry edge grinding machine is put forward through the experimental research on the dust property, the wind cooling technology, the dust...

The clarification of the distributing disciplinarian and engineering properties of soft soil in Guyana Georgetown regions has important guiding significance for the design and construction of local projects. Based on Capital Airport Expansion Project, the physical and mechanical properties of the local...

The exits and entrances of the multi arch tunnel are often located in unfavorable geological sections, such as shallow buried, bias, high weathering degree, rock breaking and so on. In addition, the existence of the side slope makes the force more complicated after the tunnel excavation. When exits and...

During tunnel construction, the stability of tunnel surrounding rock caused by excavation of water-rich section has always been a major problem in the project. In this paper, the influx of water in the face of the excavation of the water-rich section of the Junmachang tunnel caused a large amount of...

Based on the life cycle assessment method and Simapro software, this paper respectively evaluates the life cycle of the frame structure and frame-shear structure of residential buildings in Zhengzhou. The characteristics and differences of architectural dust emission in residential buildings with different...

The compaction rate of gravel soil is usually characterized by the “relative density”. In order to calculate the relative density of gravel soil, the relative density property index of soil should be determined firstly, such as the maximum dry density and the minimum dry density. Because of the size...

The water resources demonstration of Dashahe reservoir in GuanXian of China was analyzed and discussed through this paper. The Dashahe Reservoir project meets the requirements of various national policies and related plans, and the water meets the water consumption control indicator. Therefore, the water...

In this paper, in order to solve the problem of riverbank failure in Yangtze River estuary, the reason of the formation of riverbank failure and mechanism at the estuary of the Yangtze River was first analyzed. Then base on the newly derived formula recently by Chen et al, a two-dimensional riverbank...

Reduced integral is used widely to improve the efficiency of solver especially for nonlinear analysis at the cost of additional artificial strain energy, therefore, proper approach should be used to control the hourglass effect induced by reduced integral. Numerical results show that for Abaqus/Standard...

Rayleigh damping was used widely for dynamic analysis based on direct integration, especially for nonlinear analysis. Compared with Rayleigh damping, modal damping is considered more reasonable as it can simulate the damping of each mode accurately in a large range of frequency. Though those two parameters...

Frame-supported shear wall structures are designed with more limitations than shear wall structures and frame-tube structures because of the abrupt change of vertical stiffness. The transform members are proposed to be designed with enough stiffness to ensure those stories below the transform floor being...

At the stage, the airport prestressed concrete pavement of our country is still in the research stage. In this paper, an experimental analysis on mechanical effects about the void prestressed concrete pavement has been done. Deflection has been compared under plain concrete pavement and prestressed concrete...

In the history of the Daqing debris flow development zone on the right bank of Dadan River in Lijiang, the debris flow disaster occurred many times, resulting in the destruction of the farmlands near the valley and the destruction of the road and bridge, which seriously threatened the safety of the lives...

Water carrying capacity assessment is to reveal the relationship between water resources, population, and economy, fully use water resources, and make economic development go hand in hand with protection of water resources, which simultaneously promote sustainable social and economic development. Based...

Concrete supplier evaluation and selection in the building industry is one of the most critical processes for achieving a successful supply chain. In the past, technique for order-preference by similarity-to-ideal solution (TOPSIS) method has been extensively applied to the supplier evaluation and selection...

In this paper, we solve multi-objective programming problems with equilibrium constr- aints by means of homotopy interior point algorithm. We also prove the global convergence of this homotopy interior point algorithm under assumptions. Moreover, the results of the numeric example shows that this method...

To overcome the loading and control difficulty in the traditional substructure shaking table tests, an experimental technology loading the experimental substructure with active mass driver device (Abbreviated as AMD) under multi-parameter control (Abbreviated as MPC) was presented and analyzed in this...

A new airport is building at somewhere in northern China. The airport is located on an artificial island which is filled with gravel. Because the foundation is filled at one time and the thickness exceeds 22m, it should be consolidated. The designer supposed to use dynamic compaction method. The dynamic...

The properties of asphalt mortar with fiber added directly affect the road performance of SMA. Based on the raw material performance test, the paper carried out the dynamic shear rheological test (DSR) and the bending beam rheological test (BBR) on the SBS modified asphalt mortar with nickel iron slag...

At present, rubber bearing isolation technology has been widely used in the design of isolation structure at home and abroad. Its core idea is to increase the vibration cycle of the building by increasing rubber isolation bearing, so as to reduce the damage to the superstructure by the seismic action....

The traditional houses in southern Fujian Province is an important part of Chinese dwellings.They are located on both sides of the Taiwan Strait where the wind disasters happened frequently. In the long history, many considerations on wind resistance performance of traditional houses in southern Fujian...

The hathpace folk houses in Kashgar are the only one that are preserved well in China today and are also the essence of modern Islamic culture.The unique spatial structure of hathpace folk houses are not seen in other provinces and cities of China. This construction community has strong growth and vitality...

For rotor blades of the 1.5MW wind turbine, combined with ANSYS software, finite element analysis had been made. Vibration frequency on the wind turbine blades at different bands has been calculated. The result provided theoretical basis for the operation of wind turbine.

The experimental material is ‘Red Globe’ grape that is taking shelter from rain. Use different concentrations of SUNRED on the grapes, when the color of grape is turning. Then study the effect of color and quality of fruit. The results show that, SUNRED1000 times could promote the grape coloring. The...

In this paper, the problems existing in different bidding stages of each bid participant are first sorted out through the list,Then put forward the corresponding improvement measures to the problems in the bidding And put forward suggestions for the bidding activities in our country,ensure that the transaction...

Some components are not important when examining the structural integrity, but their destruction can lead to the continuous collapse of the overall structure. Such components are called key Elements. In this chapter, the determination of the key elements of a marine engineering floating .pier structure...

In this experiment, the 7-year-old Ziziphus jujuba ‘Zhanshanmizao’ tree with the same tree potential was used as the test material, and different time (December 5 th, 2016 and January 16 th, 2017) was selected to be treated with their sheds and exposed to uncovered open fields for comparison. The contents...

7-year-old trees of Ziziphus jujuba ‘Zhanshanmizao’ were used to study physiological indexes. Using SA spray the trees with different concentrations in January 30 th, 2017. Study the changes of water, Organic nutrients (starch, soluble sugar, soluble protein, and free amino acid) and antioxidant system...

The adsorption of roxithromycin from aqueous solution onto multied-walled carbon nanotubes was studied. The gravimetric method can be adopted for calculating the adsorption isotherm and kinetic curves of roxithromycin onto the carbon nanotubes. The influential factors including the pH and humic acid...

We used the 7-year-old Zizyphus jujuba 'Zhanshanmizao' as a test material, and sprayed three different concentrations of GA3(50 mg/L, 100 mg/L and 200 mg/L) to it on January 30, 2017. The dynamic changes of antioxidant substances (SOD, POD, O2- and MDA) were measured after the management in order to...

Strength reduction and expansion deformation of expansive soil would happen due to change of moisture content. Effect of rainfall on earth pressure of shield tunnel in expansive soil stratum is studied by taken reduction of expansive soil strength and additional expansive stress field into consideration....

Arterial Highway is usually the only highway of its region. Once reconstructed and extended, it will has significant impact on regional traffic. So, research on traffic organization during reconstruction and extension of arterial highway appears particularly important. Aiming at the special situation...

in this study, the influence s of the particle size, adsorption time, dosage, pH value and initial concentration of the solution on the removal effect of Cu (II) in groundwater were studied by batch experiments and got the static optimal reaction conditions to determine the Static influence factors firstly.

The pavement subbase is an important part of the pavement structure, and it is also the structural layer which is prone to appear quality problems in the pavement. As the main bearing layer, the pavement subbase plays a connecting role between the subgrade and the pavement. The practical engineering...

Model test of long-term drainage consolidation model of floating mud was carried out in this paper. The test was carried out in a large consolidation model test tank developed by the laboratory itself. The test reinforcement period is 691 days. After the reinforcement by a preloading load of 80kpa, the...

The objective aims to study the bonding, deformation and failure behavior of carbon nanotubes-asphalt interface using molecular simulations. The electronic structure and electrical properties of carbon nanotubes modified asphalt (CNMA) were investigated by first-principle molecular dynamic including...

The transverse free vibration of Timoshenko beams resting on viscoelastic foundation are studied. Complex frequency equations are obtained for pinned-pinned ends. The effects of beam and foundation parameters on natural frequencies are analyzed in numerical examples, and the characteristics of Timoshenko...

This paper presents the results of a study on the fatigue damage of concrete under uniaxial compression. Based on the experiment results, the change law of fatigue modulus is put forward. Then the paper presents a fatigue damage model. By reference to the concept about the damage variable defined by...

The turning link inevitably exists in organic fertilizer production process. To solve numerous problems caused by low degree of automation in the turning process such as high labor intensity and low efficiency, a SCM-based automatic tracking motion system of organic fertilizer turning machine was developed...

Vulnerability evaluation of lightning disaster is an important part of lightning disaster research and it is a typical multi-factor comprehensive evaluation problem based on index system. Multi-factor evaluation methods such as hierarchical zoning method, cluster analysis, analytic hierarchy process,...

In recent years, with the accelerating process of urbanization in China, China's construction industry has gradually entered a period of rapid development. The continuous updating of science and technology has also enabled modern construction technology to be continuously improved, and the quality of...

Explosive spalling behavior of reactive powder concrete (RPC) exposed to high temperature up to 800 ºC and the influence of steel fiber and polypropylene (PP) fiber on it were investigated in this experiment. Results show that RPC specimens encountered severe explosive spalling. However, adding PP fiber...

This paper is based on the construction, installation and commissioning of the first offshore booster station - a 220KV booster station in the Asia Pacific region, and mainly expounds the technology of integrity analysis of offshore booster station model and integrated construction. This paper explains...

The perfect monitoring and alarming system in the urban utility tunnel is an important guarantee for the normal operation of the integrated pipe gallery. This paper first introduces the general situation of the monitoring and alarm systems in the monitoring and alarm system of the urban utility tunnel,...

This paper design a set of remote monitoring and testing equipment aimed at the inclination of the transmission tower, and proposed a methodology of evaluating risk degree to evaluate the risk level of the current state of the tower according to the test data. This paper gives a set of adjustment equipment...

Longchang Aqueduct is a reinforced concrete box deck type arch with clear span 200m,located in Guizhou Province of China, inclined cable-stayed buckle and cantilever erection is adopted for rib assemble. This paper introduces the arch ring of arch foot section of the construction of a unique process,...