SIZE OPTIMIZATION DESIGN OF SPATIAL LATTICE SHELL BASED ON DISC RETE VARIABLES

Shang Lingyun; Lu Xiaoyang; Zhou Xuejun

doi:10.13204/j.gyjz200409022

Volume 34 Issue 9

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2004 > 34(9): 74-77,98

Shang Lingyun, Lu Xiaoyang, Zhou Xuejun. SIZE OPTIMIZATION DESIGN OF SPATIAL LATTICE SHELL BASED ON DISC RETE VARIABLES[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(9): 74-77,98. doi: 10.13204/j.gyjz200409022

Citation:

Shang Lingyun, Lu Xiaoyang, Zhou Xuejun. SIZE OPTIMIZATION DESIGN OF SPATIAL LATTICE SHELL BASED ON DISC RETE VARIABLES[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(9): 74-77,98. doi: 10.13204/j.gyjz200409022

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SIZE OPTIMIZATION DESIGN OF SPATIAL LATTICE SHELL BASED ON DISC RETE VARIABLES

doi: 10.13204/j.gyjz200409022

1.
1. College of Civil Engineering,Tongji University Shanghai 200092;
2.
2. Mechanical Institute,Shandong College of Architecture and Engineering Jinan 250014;
3.
3. Department of Civil Engineering,Shandong College of Architecture and Engineering Jinan 250014

Received Date: 2003-12-20
Publish Date: 2004-09-20

Abstract

Abstract

Taking the sizes of cross sections and the volume of ordinary spherical nodes as design variables and overall cost as objective function, the size optimization design of spatial lattice shell is developed by means of two-level algorithem based on discrete variables.The credible structural analysis programme named Algor(Super SAP93) is combined to accomplish the finite element analysis of mathematical model. In addition, zero-step modification is considered to improve the computational precision. At the end, through two numerical examples, the theories above are tested and verified to be correct. Compared with full stress optimization method, the computational results are satisfactory.
- discrete variable,
- structural optimization,
- relative difference quotient,
- lattice shell