空间结构分析的超级有限元法  

SUPER FINITE ELEMENT METHOD FOR SPATIAL STRUCTURE ANALYSIS

作　　者：曹志远[1] 吴梓玮[1] 

机构地区：[1]同济大学,上海冶金设计院

出　　处：《空间结构》1995年第1期24-28,共5页Spatial Structures

基　　金：国家自然科学基金

摘　　要：本文探讨一种新型的杆系空间结构分析方法——超级厚壳单元技术。这种方法将按空间结构整体划分有限元（超级元），又经构件分析将杆件节点自由度归结为超级元整体自由度上机计算。这样在很大程度上节省计算工作量，而计算自由度又同结构内部复杂程度及构件数目与布置无关，并可直接给出每个构件详情内力。这为复杂的杆系空间结构开拓一条简便、实用的工程分析途径，具有广泛的应用与推广价值。Abstract In this paper,a super thick shell element method for analyzing shell(plate)type truss is presented,among which a whole structure is divided into super elements according to its exterior shape and the DOF ofstructural members are simplified to ones of a very few node points of super elements.The suggested methed involves a small amount of calculation and DOF independent from complexity and number of structural members aswell as gives the detailed distribution of internal forces in the structure. The method presented here is helpful toprovide a practical and efficient approach for engineering analysis of complex spatial structures and it is of greatvalue to us in the application and popularization。

关 键 词：空间结构分析 超级有限元法 厚壳单元技术 建筑结构 

分 类 号：TU31[建筑科学—结构工程]