多约束的桥梁结构拓扑优化  

TOPOLOGY OPTIMIZATION WITH MULTIPLE CONSTRAINTS FOR BRIDGE STRUCTURE

作　　者：李志强[1] 宋艳丽[2] 张运章[3] 

机构地区：[1]广西大学土木建筑工程学院,南宁530004 [2]河南质量工程职业学院经济与管理系,河南平顶山467001 [3]河南科技大学数学与统计学院,河南洛阳471003

出　　处：《钢结构》2013年第7期20-23,共4页Steel Construction

基　　金：国家自然科学基金资助项目(11171269)

摘　　要：拓扑优化能够在给定边界条件下,给出结构合理的材料分布。基于SIMP的拓扑优化方法,提出一种连续结构的拓扑优化方法。在不同边界条件和多约束条件下,应用提出的方法对一拱桥和一桥的基座进行形态拓扑优化。优化结果表明该方法具有实用性、简洁性和有效性。Topology optimization could give the optimized distribution of material when constrains and boundary condition were defined. Based on SIMP method, a structural topology optimization method for continuous structures was presented in this paper. An arch bridges and an base of bridges were optimized under various loading conditions with both stress and displacement constraints. The applicability, simplicity and effectiveness of the present method were demonstrated through the design optimization of the two examples.

关 键 词：拓扑优化 约束条件 伪密度 迭代计算 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]