Topology optimization for the seismic design of truss-like structures

被引：40

作者：

Hajirasouliha, Iman ^{[1
]}

Pilakoutas, Kypros ^{[2
]}

Moghaddam, Hassan ^{[3
]}

机构：

[1] Univ Nottingham, Dept Civil Engn, Nottingham NG7 2RD, England

[2] Univ Sheffield, Dept Civil & Struct Engn, Sheffield, S Yorkshire, England

[3] Sharif Univ Technol, Dept Civil Engn, Tehran, Iran

来源：

COMPUTERS & STRUCTURES | 2011年 / 89卷 / 7-8期

关键词：

Truss structure; Topology optimization; Weight minimization; Seismic excitation; Nonlinear behavior; GEOMETRY;

D O I：

10.1016/j.compstruc.2011.02.003

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A practical optimization method is applied to design nonlinear truss-like structures subjected to seismic excitation. To achieve minimum weight design, inefficient material is gradually shifted from strong parts to weak parts of a structure until a state of uniform deformation prevails. By considering different truss structures, effects of seismic excitation, target ductility and buckling of the compression members on optimum topology are investigated. It is shown that the proposed method could lead to 60% less structural weight compared to optimization methods based on elastic behavior and equivalent static loads, and is efficient at controlling performance parameters under a design earthquake. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：702 / 711

页数：10

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