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initial pre-stress finding procedure and structural performance research for Levy cable dome based on linear adjustment theory

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第9期8卷 1366-1372页

作者： ZHANG Li-mei CHEN Wu-jun DONG Shi-lin Space Structures Research Center Shanghai Jiao Tong University Shanghai 200030 China

The cable-strut structural system is statically and kinematically indeterminate. The initial pre-stress is a key factor for determining the shape and load carrying capacity. A new numerical algorithm is presented herein for the initial pre-stress finding procedure of complete cable-strut assembly. This method is based on the linear adjustment theory and does not take into account the material behavior. By using this method,the initial pre-stress of the multi self-stress modes can be found easily and the cal-culation process is simplified and efficient also. Finally,the initial pre-stress and structural performances of a particular Levy cable dome are analyzed comprehensively. The algorithm has proven to be efficient and correct,and the numerical results are valuable for practical design of Levy cable dome.

关键词： Linear adjustment theory Cable-strut structure initial pre-stress Levy cable dome Structural performances analysis

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initial pre-stress Finding and Structural Behaviors Analysis of Cable Net Based on Linear Adjustment Theory

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Journal of Shanghai Jiaotong university(Science) 2008年第2期13卷 155-160页

作者：任涛陈务军付功义 Space Structure Research Center Shanghai Jiaotong University

The tensile cable-strut structure is a self-equilibrate pre-stressed *** initial pre-stress cal- culation is the fundamental structural analysis.A new numerical procedure was *** force density method is the cornerstone of analytical formula,and then introduced into linear adjustment theory;the least square least norm solution,the optimized initial pre-stress,is *** initial pre-stress and structural performances of a particular single-layer saddle-shaped cable-net structure were analyzed with the developed method,which is proved to be efficient and *** modal analyses were performed with respect to various pre-stress ***,the structural performances were investigated comprehensively.

关键词： linear adjustment theory tensile cable-net structure initial pre-stress single-layer saddle-shaped cable net structural performances analysis

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