Topology Optimization Design of Prestressed Steel Structures Based on Von Mises Stress

YANG Hai-jun; ZHANG Ai-lin

Journal of Beijing University of Technology > 2010 > 36(4): 475-481.

YANG Hai-jun, ZHANG Ai-lin. Topology Optimization Design of Prestressed Steel Structures Based on Von Mises Stress[J]. Journal of Beijing University of Technology, 2010, 36(4): 475-481.

Citation:

YANG Hai-jun, ZHANG Ai-lin. Topology Optimization Design of Prestressed Steel Structures Based on Von Mises Stress[J]. Journal of Beijing University of Technology, 2010, 36(4): 475-481.

Citation:

YANG Hai-jun, ZHANG Ai-lin. Topology Optimization Design of Prestressed Steel Structures Based on Von Mises Stress[J]. Journal of Beijing University of Technology, 2010, 36(4): 475-481.

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Topology Optimization Design of Prestressed Steel Structures Based on Von Mises Stress

YANG Hai-jun^1,2,
ZHANG Ai-lin¹

1. College of Architecture and civil engineering, Beijing University of Technology, Beijing 100124, China;
2. Hebei Institute of Architecture and Civil Engineering, Zhangjiakou 075024, Hebei China

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Received Date: September 08, 2008
Available Online: December 14, 2022

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Abstract

To obtain optimal topology shape and cables' pretension force for prestressed steel structure, a mathematical optimization model is established in such a form that the cables' pretension force and the structural topology are referred as the design variables, the Von Mises stress as constrain condition, and the minimum of structural weight as the objective function.In order to establish the model, the method of minimizing structural strain energy (maximizing structural stiffness) is applied to calculate the cables' pretension force, and then the method of evolutionary structure optimization is provided to minimize the structural weight through deleting elements with minimum Von Mises stress.The result of the examples coincides with corresponding structural performance, and this indicates the method in this paper is effective and efficient.

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