Volume 9, Issue 3 (6-2019)
2019, 9(3): 483-498 |
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Danesh M, Gholizadeh S, Gheyratmand C. PERFORMANCE-BASED OPTIMIZATION AND SEISMIC COLLAPSE SAFETY ASSESSMENT OF STEEL MOMENT FRAMES. International Journal of Optimization in Civil Engineering 2019; 9 (3) :483-498
URL: http://ijoce.iust.ac.ir/article-1-402-en.html
URL: http://ijoce.iust.ac.ir/article-1-402-en.html
Abstract: (17241 Views)
The main aim of the present study is to optimize steel moment frames in the framework of performance-based design and to assess the seismic collapse capacity of the optimal structures. In the first phase of this study, four well-known metaheuristic algorithms are employed to achieve the optimization task. In the second phase, the seismic collapse safety of the obtained optimal designs is evaluated by conducting incremental dynamic analysis and generating fragility curves. Three illustrative examples including 3-, 6-, and 12-story steel moment frames are presented. The numerical results demonstrate that all the performance-based optimal designs obtained by the metahuristic algorithms are of acceptable collapse margin ratio.
Keywords: structural optimization, performance-based design, incremental dynamic analysis, collapse margin ratio, steel moment frame.
Type of Study: Research |
Subject:
Applications
Received: 2019/02/22 | Accepted: 2019/02/22 | Published: 2019/02/22
Received: 2019/02/22 | Accepted: 2019/02/22 | Published: 2019/02/22
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