摘要
采用统计回归方法,对辽西地震重点监视防御区内4条国家级公路的桥梁133座、4条国有铁路的桥梁331座,以桥梁震害等级划分原则,求取其震害指数,判定震害等级。对应于给定地震烈度Ⅶ一Ⅺ度,对桥梁破坏程度进行易损性分析。最后分别计算出公路、铁路桥梁的震害率,并给出震害预测矩阵。
By using statistical regression method the earthquake damage indexes are obtained based on the principle of the classification of seismic damage in Liaoxi district.We calculate the earthquake damage rates of highway and railway bridges,and finally give the prediction matrix for earthquake damage.