基于能力谱的高架车站地震易损性分析  

Analysis on Seismic Vulnerability of Elevated Stations Based on Capacity Spectrum

作　　者：束洋 SHU Yang

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海市200092

出　　处：《城市道桥与防洪》2024年第5期252-255,259,M0022,共6页Urban Roads Bridges & Flood Control

摘　　要：地震易损性分析是一种评估震害损失的方法。采用Pushover能力谱分析法对高架车站结构进行抗震性能研究,考察了层间位移角和塑性铰的出现机制,得到了易损性曲线和易损性矩阵。结果表明,高架车站结构实例在各级地震作用下主要发生轻微损坏或较小概率的中等程度损坏,层间位移角符合性能设计要求。分析所用的方法简易可行,结果可供参考。The analysis of seismic vulnerability is a method for assessing seismic damage.The seismic performance of elevated station structures is studied by using the Pushover capacity spectral analysis method.The emergence mechanisms of inter-story displacement angle and plastic hinge are studied to obtain the vulnerability curve and vulnerability matrix.The results show that the elevated station structure example suffers mainly minor damage or a small probability of moderate damage under all levels of seismic action,and that the inter-story displacement angles meet the performance design requirements.The method used is simple and feasible,and the results are available for reference.

关 键 词：高架车站 Pushover能力谱 抗震性能 易损性分析 

分 类 号：TU31[建筑科学—结构工程]