Seismic collapse safety based optimization of steel Moment-Resisting frames

Date

2022-11-01

Author

Gholizadeh, Saeed
Hasançebi, Oğuzhan
Eser, Hasan
Koçkaya, Okan

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Structures must have a reasonable seismic safety margin in order to ensure life-safety as well as to prevent structural collapse caused by earthquakes. On the other hand, the cost-efficiency and economy of structures are important and integral parts of structural engineering. The main aim of the current study is to propose an efficient methodology for designing cost-efficient multi-story special steel moment-resisting frames at predefined levels of seismic collapse safety. To achieve this purpose, a seismic collapse safety assessment technique is in-tegrated with performance-based design optimization in the present study. In order to illustrate the advantages of the proposed methodology, three design examples of 3-, 6-and 12-story special steel moment-resisting frames are presented. The numerical results show that by with a 25% increase in the optimal weight of the structures, their seismic collapse capacity increases by more than 50%.

Subject Keywords

Seismic collapse safety, Performance based design, Incremental dynamic analysis, Optimization, Fragility analysis, Special steel moment -resisting frame, DESIGN

URI

https://hdl.handle.net/11511/100409

Journal

STRUCTURES

DOI

https://doi.org/10.1016/j.istruc.2022.09.034

Collections

Department of Civil Engineering, Article

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Citation Formats

S. Gholizadeh, O. Hasançebi, H. Eser, and O. Koçkaya, “Seismic collapse safety based optimization of steel Moment-Resisting frames,” STRUCTURES, vol. 45, pp. 329–342, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/100409.