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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。
In order to establish the risk assessment system of masonry masonry under earthquake, based on the investigation of the seismic performance and damage of ancient masonry masonry, the fragility evaluation index was selected and its vulnerability curve was drawn. Then the masonry of masonry Combining the damage analysis with the seismic risk analysis of site, the mathematical model of earthquake risk assessment of masonry brick masonry building is established considering the failure probability and earthquake loss of the masonry building, and the seismic risk of masonry masonry tower is quantified. Taking the small wild goose pagoda as an example, this method is used to carry out probabilistic risk analysis to determine the risk value of the small wild goose pagoda.