Seismic assessment and retrofit, incorporating pushover analysis and capacity curves of irregular buildings

Abstract

Irregular buildings are increasingly common in urban areas around the world, presenting unique challenges for seismic assessment and retrofitting. Pushover analysis and capacity curves have emerged as powerful tools for evaluating the seismic performance of buildings and developing retrofitting strategies. In this study, a methodology is proposed for seismic assessment and retrofitting of irregular buildings that incorporates pushover analysis and capacity curves. The methodology involves the use of finite element models to simulate the behavior of irregular buildings under seismic loading and the development of capacity curves to evaluate the structural response. The efficacy of the proposed methodology is demonstrated through a case study of an irregular building in a high-seismic area. Capacity curves developed using pushover analysis can identify potential failure modes in the building, and targeted retrofitting strategies can be developed based on these findings. Our results highlight the importance of using advanced analysis and design techniques to ensure the safety and resilience of irregular buildings in seismic areas. The proposed methodology can be applied to a wide range of irregular buildings and can contribute to the development of building codes and design guidelines for these structures.