建筑结构学报2025，Vol.46Issue(7)：34-45,12.DOI:10.14006/j.jzjgxb.2024.0451
考虑气温与发震时段影响的建筑群抗震韧性评价
Seismic resilience assessment of building portfolio considering influences of temperature and earthquake occurrence time
摘要
Abstract
Outdoor temperature and earthquake occurrence time significantly influence buildings' post-earthquake functionality and casualties.Therefore,a post-earthquake functionality assessment method for building portfolios was proposed that considering structural damage,insulation system damage,and the influence of outdoor temperature.In addition,a casualty calculation model was developed based on historical earthquake damage data and the real-time population heat map to evaluate casualties at different times of earthquake occurrence.Seismic damage simulations of a building portfolio were performed using the multi-degree-of-freedom model to analysis the influence of temperature and earthquake occurrence time on building functionality,casualties,and seismic resilience level.The results show that low temperatures lead to a significant increase in the post-earthquake functional loss of buildings.Compare to conditions at 15℃,functional loss increases by 42.9％and 64.9％at-15℃ and-5℃,respectively.In addition,the time-varying occupancy rate leads to a large difference in the casualty rate at different earthquake occurrence times,and the casualty rate is highest when earthquakes occur during the rest period of holidays,which is 1.35 times the average value.The proposed method quantifies the effects of temperature and earthquake occurrence time on the building functional loss and casualty resilience indicators,expands the application scenarios of existing methods,and can provide a reference for the seismic resilience evaluation of building portfolios in cold regions.关键词
建筑群/室外气温影响/发震时段/功能评估/抗震韧性Key words
building portfolio/influence of outdoor temperature/earthquake occurrence time/functionality assessment/seismic resilience分类
建筑与水利引用本文复制引用
李长青,胡彬彬,李爽,黄钰文,翟长海..考虑气温与发震时段影响的建筑群抗震韧性评价[J].建筑结构学报,2025,46(7):34-45,12.基金项目
国家自然科学基金面上项目(52478508). （52478508）
