A Review of Structural Seismic Vulnerability Research Based on Endurance Time Method

This paper reviews the application of endurance time method in seismic design and evaluation of structures and its importance in seismic vulnerability analysis. The traditional methods such as static elastoplastic method and response spectrum method have low accuracy in the face of complex structures and structural nonlinear effects, while the incremental dynamic time history method has high accuracy but low efficiency. In contrast, endurance time method synthesizes multiple endurance time curves for nonlinear dynamic analysis of structures, which can more accurately simulate the real response of structures under earthquake action, and is especially suitable for seismic performance evaluation of complex structures. This method can significantly improve work efficiency while ensuring the accuracy and reliability of the results. At the same time, this paper also introduces the application of endurance time method in structural seismic vulnerability analysis and broad prospects. In summary, endurance time method, as an emerging structural dynamic analysis method, not only improves the accuracy and reliability of structural design, but also provides powerful technical tools and methodological support for seismic performance assessment and seismic vulnerability analysis of engineering structures.