Performance-based design optimization of steel moment frames using capacity controlled search algorithm: a comparison with force-based design approach


Eser H., Hasançebi O., Yakut A., Gholizadeh S.

STRUCTURE AND INFRASTRUCTURE ENGINEERING, vol.1, no.1, pp.1-16, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 1 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.1080/15732479.2023.2263442
  • Journal Name: STRUCTURE AND INFRASTRUCTURE ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1-16
  • Middle East Technical University Affiliated: Yes

Abstract

The capacity controlled search (CCS) method, which is  a  recently developed design-driven search algo-rithm, is  implemented for performance-based design optimization (PBDO) of steel moment frames. It is  shown that the CCS method is  very suitable for PBDO problems since it  can locate the optimum solution using a  reasonable computational effort unlike metaheuristic search approaches, which often require thousands of structural analyses before converging to a  near-optimum solution. Considering the fact that performance-based design (PBD) is  a  recently emerging design methodology, its compari-son with the traditional force-based design (FBD) approach is  also carried out extensively in  this study. Accordingly, the optimum designs of the investigated steel frames produced according to both design methodologies using the CCS method are compared in terms of structural weight and seismic per-formance. Unlike most of the previous studies, not only inter-story drifts but also hinge rotation limits are considered as seismic performance criterion during PBDO process of steel moment frames. The numerical applications are presented using three ordinary moment resisting steel frames. It  is  shown that although the FBD methodology usually leads to heavier designs with respect to the PBD method-ology, the optimum designs produced according to the former might fail to satisfy seismic perform-ance requirements.