Geiger型索穹顶的优化设计  

The Optimal Design of Geiger Cable Domes

作　　者：岳岭[1] 刘忠[1] 赵伟南[1] 梁冰[1] 周柯靖[1] 

机构地区：[1]湘潭大学土木工程与力学学院/流变力学研究所,湖南湘潭411105

出　　处：《河南大学学报（自然科学版）》2014年第1期118-123,共6页Journal of Henan University:Natural Science

摘　　要：基于平衡矩阵理论,采用MATLAB软件,对索穹顶进行自应力模态分析,得到索穹顶的初始预应力.采用Hooke-jeeves,Pointer与NSGA II等优化算法,利用ISIGHT集成ANSYS有限元软件,对索穹顶的整体预应力水平与总重量进行优化设计.优化结果表明,索穹顶的整体预应力水平与总重量在满足设计的条件下,得到较为明显的降低,多目标函数优化结果比单目标函数优化结果更好,可为工程设计提供参考依据.According to equilibrium matrix theory in this paper, the self-stress modes and initial prestress analyzed by MATLAB. Based on Hooke-ieeves, Pointer and NSGA II optimal method. Take the integral prestress level of structure and total weight as ~bjective function, using ISIGHT integrated ANSYS for cable dome optimal design. The optimal analysis results show that the integral prestress level and weight were reduced obviously, and satisfy design requirements. The multi-objective function optimization results were better than the single objective function optimization results, The results can provide a reference for engineering design.

关 键 词：索穹顶 自应力模态 优化设计 单目标函数 多目标函数 

分 类 号：TU393.3[建筑科学—结构工程]