A Comparison of Optimal Force-Based and Performance-Based Designs for a Planar Ordinary Moment-Resisting Steel Frame

Date

2021-06-14

Author

Eser, Hasan
Hasançebi, Oğuzhan

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

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In past earthquakes, seismic performance of the structures designed in accordance with conventional force-based design (FBD) methodology has been observed to vary significantly from one structure to another. The pursuit of designing structures with foreseeable damage protection under a particular hazard level or a set of hazard levels resulted in the development of performance-based design (PBD) methodology. Since the first introduction of the PBD concepts into structural engineering with the SEAOC Vision 2000, other guidelines such as FEMA 273/356, ASCE 41-06, ASCE 41-13 and ASCE 41-17 are followed; however, the use of these guidelines is limited to the evaluation of the existing structures rather than being complete design codes for new buildings. Nevertheless, the seismic performance criteria in these guidelines have been adopted by many researchers and have found a broad application especially under structural optimization framework. In this study, a planar ordinary moment-resisting steel frame is optimally designed under conventional FBD and PBD methodologies using exponential big bang – big crunch (EBB-BC) algorithm. Then, these optimum designs are compared in terms of design costs and seismic performance. The results suggest that it is possible by PBD approach to produce more economical and safer designs than by the conventional FBD approach.

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https://www.eng.bupim.com/yayinlar/bupim-pdf/ICAIBDEA_2021-E-DIGITAL_BOOK.pdf#page=77
https://hdl.handle.net/11511/105825

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Department of Civil Engineering, Conference / Seminar