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Equivalent Seismic Performance Optimization of Steel Structures Based on Nonlinear Damage Analysis

Equivalent Seismic Performance Optimization of Steel Structures Based on Nonlinear Damage Analysis An equivalent seismic performance optimization (ESPO) method is proposed in this article based on nonlinear seismic damage analysis, where the constraints and the fitness function of the optimization problem are expressed as the seismic performance index combined with the importance coefficient and the damage index. Two prototype buildings, a 9-story building with steel frame and a 15-story building with steel frame plus steel plate shear wall are optimized using the ESPO method, and the building seismic performance is obtained through incremental dynamic analysis. The analysis results show that the global seismic performance of the optimized building has obviously improved while the building self-weight has been reduced significantly. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Structural Engineering SAGE

Equivalent Seismic Performance Optimization of Steel Structures Based on Nonlinear Damage Analysis

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Publisher
SAGE
Copyright
© 2015 SAGE Publications
ISSN
1369-4332
eISSN
2048-4011
DOI
10.1260/1369-4332.18.7.941
Publisher site
See Article on Publisher Site

Abstract

An equivalent seismic performance optimization (ESPO) method is proposed in this article based on nonlinear seismic damage analysis, where the constraints and the fitness function of the optimization problem are expressed as the seismic performance index combined with the importance coefficient and the damage index. Two prototype buildings, a 9-story building with steel frame and a 15-story building with steel frame plus steel plate shear wall are optimized using the ESPO method, and the building seismic performance is obtained through incremental dynamic analysis. The analysis results show that the global seismic performance of the optimized building has obviously improved while the building self-weight has been reduced significantly.

Journal

Advances in Structural EngineeringSAGE

Published: Jul 1, 2015

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