FEM Analysis of Welded Spherical Joints’ Stiffness

DOI

10.2991/icmce-14.2014.136How to use a DOI?

Keywords

Welded Spherical Joints, FEM Analysis, Joints’ Stiffness, Non-linear Stability Analysis

Abstract

Welded spherical joints’ stiffness has important influences on the strength and stability bearing capacity of reticulated shells. For complication of theoretical analysis and difficulty on experiments, the stiffness of welded spherical joints which is applied widely in the large-span reticulated shells, is analyzed and computed under the different conditions by finite element method with the structural analysis universal program SAP5 in this paper, the expressions of axial flexibility function f and flexural stiffness ke of welded spherical joints with parameters: joints’ diameter and thickness, members’ diameter are attained by regression analysis for lots of computing results. Here, orthogonal design and orthogonal multi-item formula are accepted. These expressions can be adopted by the non-linear stability analysis of the large-span space reticulated shells with the welded spherical joints considering the influence of joints’ stiffness.

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Fan WANG
AU  - Qin-Kai CHEN
AU  - Qun WANG
AU  - Ke-Wei ZHU
AU  - Xing WANG
PY  - 2014/12
DA  - 2014/12
TI  - FEM Analysis of Welded Spherical Joints’ Stiffness
BT  - Proceedings of the 2014 International Conference on Mechanics and Civil Engineering
PB  - Atlantis Press
SP  - 773
EP  - 777
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmce-14.2014.136
DO  - 10.2991/icmce-14.2014.136
ID  - WANG2014/12
ER  -