广东省样本桥梁地震易损性对比研究

A Comparative Study into the Seismic Vulnerability of Sample Bridges in Guangdong Province

广东省桥梁数量多,经过长时间运营,抗震能力差别较大。为了初步了解广东省桥梁的抗震水平,本文运用经验统计三次判别预测方法,对所收集的广东省桥梁样本集做群体易损性分析研究,分别得出总体和按不同上部结构类型分类的数据、图形分析结果,并将该结果与四川汶川地震后现场桥梁调研情况和各代表性桥梁样本集地震易损性分析结果进行对比研究,进而得出相应的结论。

There are many bridges in Guangdong province. Over a long period of operation, the seismic capacity has differed to a great extent. In order to understand the general capacity of the bridges in earthquake prevention, this paper has conducted an analysis study on the group vulnerability of sample bridges in Guangdong, using three-time differentiation prediction method of empirical statistical, which leads to overall and respective data and diagram analysis results as per different upper structure types. Major conclusions are draw upon the comparative study of the above-mentioned results with that of the site bridge studies after Siehuan Wenquan earthquake and earthquake vulnerability results from typical sample bridge sets.