| Title |
Drift-Based Limit States Through Seismic Fragility Assessment for Piloti-Type Building Structures |
| Authors |
손정훈(Sohn, JungHoon) ; 최인섭(Choi, Insub) ; 김준희(Kim, JunHee) |
| DOI |
https://doi.org/10.5659/JAIK.2022.38.6.205 |
| Keywords |
Piloti-type building structures; Interstory drift ratio; Limit states; Concrete strain; Seismic fragility assessment |
| Abstract |
Evaluating the seismic performance of a piloti-type structure is difficult considering the drift-based limit states such as interstory drift ratio
and initial design review (IDR) of piloti-type structures are not defined. Drift-based limit states are defined for a lateral-resisting system, but
piloti-type structures consist of two lateral-resisting systems. This study aims to analyze the suitability of existing drift-based limit states
through the fragility assessment for piloti-type building structures. The piloti structures consisting of a shear wall system and a RC moment
frame were used as a prototype model. IDR and concrete strain were used as the engineering demand parameter (EDP) to analyze the
seismic fragility of target buildings through an incremental dynamic analysis (IDA). As a result of the correlation analysis of the seismic
fragility curves obtained by IDR and concrete strain, the IDR-based limit states of a piloti-type structure should be lower than that of the
practically used shear wall system. |