TANGENT STIFFNESS MATRIX OF MEMBERS OF RETICULATED SHELL CONSIDERING JIONTS STIFFNESS
In this paper, a tangent stiffness matrix of members of reticulated shell considering joints stiffness is derived on the basis of Timoshenkos beam-column theory. In this matrix, joints axial stiffness and bending stiffness are considering together, non-linear beam-column element with rigid springs and rigid ends is taken as the analysis model of members of reticulated shell. In this matrix,not only coupling effects of bending in two axes but also joints stiffness and joints size are considered, not only the effect of axial force on bending but also the effect of axial force on torsion are considered. Higher order terms in the displacement function are considered. So this matrix is perfect and more precise than Orans tangent stiffness matrix. An example of a single layer reticulated shell is provided, which verified the correctness and good accuracy of the present model, and this model can be suited to the non-liner stablity analysis of reticulated shell.
Tangent stiffness matrix Joints axial stiffness Joints bending stiffness Joints size
Xing Wang Wei Zhang
School of Architecture and Civil Engineering, Ningbo University of Technology,Ningbo 315211, P.R. Ch School of Architecture and Civil Engineering, Zhejiang University of Technology,Hangzhou 310032, P.R
国际会议
第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)
长沙
英文
148-152
2008-10-19（万方平台首次上网日期，不代表论文的发表时间）