桥墩抗震性能评估的适用近场地震动强度参数研究
发布时间:2018-07-14 16:40
【摘要】:为研究适用于桥墩结构抗震性能评估的近场地震动强度参数,建立了具有不同周期的3个钢筋混凝土墩柱模型,选取大量实际地震记录组成地震记录库,利用增量动力分析和统计推论的方法研究了非弹性位移响应谱值作为近场地震动强度参数在评估桥墩抗震性能时的适用性,研究结果表明,相比弹性位移响应谱值,非弹性位移响应谱值是更适用的近场地震动强度参数,可以用来进行基于概率的桥墩结构抗震需求分析。研究结果具有一定的学术和工程应用价值。
[Abstract]:In order to study the near-field seismic intensity parameters suitable for the seismic performance evaluation of pier structures, three reinforced concrete pier column models with different periods are established, and a large number of actual seismic records are selected to form the seismic recording database. Using incremental dynamic analysis and statistical inference, the applicability of inelastic displacement response spectral value as near field ground motion intensity parameter in evaluating seismic performance of bridge pier is studied. The results show that compared with elastic displacement response spectrum value, The inelastic displacement response spectrum is a more suitable parameter of near-field ground motion intensity, which can be used to analyze the seismic demand of pier structure based on probability. The research results have certain academic and engineering application value.
【作者单位】: 北京工业大学建筑工程学院;北京交通大学土木建筑工程学院;
【基金】:国家自然科学基金项目(51378169,51178008) NSFC-JST项目(51021140003) 河北省自然基金项目(E2013402072)
【分类号】:U442.55
[Abstract]:In order to study the near-field seismic intensity parameters suitable for the seismic performance evaluation of pier structures, three reinforced concrete pier column models with different periods are established, and a large number of actual seismic records are selected to form the seismic recording database. Using incremental dynamic analysis and statistical inference, the applicability of inelastic displacement response spectral value as near field ground motion intensity parameter in evaluating seismic performance of bridge pier is studied. The results show that compared with elastic displacement response spectrum value, The inelastic displacement response spectrum is a more suitable parameter of near-field ground motion intensity, which can be used to analyze the seismic demand of pier structure based on probability. The research results have certain academic and engineering application value.
【作者单位】: 北京工业大学建筑工程学院;北京交通大学土木建筑工程学院;
【基金】:国家自然科学基金项目(51378169,51178008) NSFC-JST项目(51021140003) 河北省自然基金项目(E2013402072)
【分类号】:U442.55
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