【摘要】 为了建立砖石古塔在地震作用下的风险评估体系,基于砖石古塔抗震性能和震害调查,选取易损性评判指标,绘制其易损性曲线,然后将砖石古塔建筑的易损性分析与场地的地震危险性分析相结合,考虑结构的破坏概率和地震损失,建立砖石古塔建筑的地震风险评估数学模型,量化砖石古塔的地震风险。以小雁塔为例运用该方法对其进行概率风险分析,确定小雁塔的风险值。更多还原

【Abstract】 To build the risk evaluation system of ancient masonry pagodas under earthquake,vulnerability index was selected based on seismic properties and seismic damage investigation to plot fragility curve.Then it was built a mathematical model of earthquake risk by combining vulnerability analysis with seismic risk analysis,and also considering structural damage probability and seismic damage,which could quantify earthquake risk.With which the probability risk of Xiaoyan Tower was analysed and its risk value was calculated,so that it could be better protected.更多还原