索杆膜空间结构协同形态分析  

COORDINATED FORM-FINDING ANALYSIS OF CABLE-STRUT-MEMBRANE SPACE STRUCTURES

作　　者：刘凯[1] 高维成[2] 刘宗仁[3] 

机构地区：[1]南昌工程学院土木工程系,南昌330099 [2]哈尔滨工业大学航天科学与力学系,哈尔滨150001 [3]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《工程力学》2007年第12期38-42,共5页Engineering Mechanics

基　　金：国家自然科学基金项N(50478030);黑龙江省科技攻关计划项目(GC04C101)

摘　　要：针对索杆膜空间结构进行了协同形态分析。根据现有的索膜非线性有限元找形理论和索杆体系找力方法,并考虑施工成形过程,提出了一种新的适合于索杆膜空间结构形态分析的求解方法——形态迭代求解法,并编制了相应的程序,实现了算法。最后通过一个算例验证了形态迭代求解法的正确性并得到如下结论:按该文算法得到的找形结果满足力平衡方程、相容方程和建筑师给定的边界条件。设计验算时被动张拉索的预应力值应通过计算得到。该文程序可用于索杆膜空间结构考虑施工成形的设计验算。Through the coordinated form-finding analysis of cable-strut-membrane space structures, both a new solution method named form-finding iteration solution method suite for form-finding analysis of cable-strut-membrane space structures and the solution arithmetic are proposed by means of a non-linear finite element form-finding theory of cable-membrane structures, a prestress-finding method of cable-strut systems and construction form of cable-strut-membrane structures. Finally, the method developed herein is validated by one example and some conclusions are made as follows： the form-finding results agree with equilibrium equations, compatibility equations and boundary conditions assigned by architects; passive prestressed tension of the cable should be determined by computing when the design is checked. The program introduced by this paper can be used to check design considering construction form of cable-strut-membrane space structures.

关 键 词：索杆膜空间结构 形态分析 协同分析 施工成形 设计验算 

分 类 号：TU358[建筑科学—结构工程] TU311.4