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Multiobjective Optimization of Building Seismic Design for Resilience
| 题名： | Multiobjective Optimization of Building Seismic Design for Resilience |
| 正文语种： | eng |
| 作者： | Joyner, Matthew D.;Puentes, Bella;Gardner, Casey;Steinberg, Stevie;Sasani, Mehrdad |
| 作者单位： | Northeastern Univ Dept Civil & Environm Engn Boston MA 02115 USA;Raytheon Intelligence & Space Space Syst 1100 Wilson Blvd Arlington VA 22209 USA|Harvey Mudd Coll Dept Engn Claremont CA 91711 USA;Harvey Mudd Coll Dept Engn Claremont CA 91711 USA|Univ Calif San Diego Dept Struct Engn San Diego CA 92093 USA;Harvey Mudd Coll Dept Engn Claremont CA 91711 USA;Northeastern Univ Dept Civil & Environm Engn Boston MA 02115 USA |
| 关键词： | Multiobjective optimization (MOO);Building design;Pruning;Resilience;Repair cost;Loss of function;Strength;Stiffness;Deformation capacity;Seismic performance |
| 摘要： | When facing multiple, competing, objectives such as those encountered in resilience-based design of buildings (e.g., cost reduction versus functionality preservation), there is no single design that can be declared objectively better than the rest. Multiobjective optimization (MOO) methods can instead be used to identify a group of design alternatives that represent the optimal trade-offs between competing objectives. In doing so, however, MOO relies on performance evaluation for a large number of design alternatives, representing a problem for performance-based building seismic design, which typically involves computationally intensive and time-consuming nonlinear analyses of building models subjected to suites of ground motion records. Furthermore, only minimal guidance exists for the post-MOO selection of a final design from the optimal set, further impeding its adoption in design of buildings. This paper addresses these issues through use of simplified structural models and methods applied within a MOO methodology, coupled with a newly adapted post-Pareto pruning approach to narrow down the optimal design set to a manageable-sized group of final design alternatives. The methodology was applied to optimize the design of a 7-story reinforced concrete moment frame office building in San Francisco. |
| 出版年： | 2022 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 148 |
| 期： | 4 |
| 页码： | 04022006.1-04022006.13 |
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