木结构古建筑地震灾害风险评估
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摘要
针对木结构古建筑的典型代表——西安钟楼,以PGA为地震动强度指标,层间位移角为结构响应指标,结合木结构抗震能力建立了该结构的易损性曲线;再根据木结构古建筑所在场地的地震危险性,结合古建筑地震损失相关研究,为木结构古建筑地震风险评估提出了一种特定的方法。
This paper focus attention on an typical timber-structure ancient architecture‘Xi'an Bell Tower,the peak ground acceleration( PGA) was chosen as the intensity index of earthquake,while the inter-storey drift angel was taken as the seismic response index. Then combining with the structure seismic capacity analysis,the vulnerability curve was established. Based on seismic hazard of site,at where the timber-structur ancient architecture is located and combining with relevant research on seismic loss of ancient buildings,this paper puts forward a specific method for earthquake risk assessment of the timber- structure ancient architecture.
引文
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