【摘要】 "5.12"汶川特大地震后,对"兰成渝"成品油管道线路中受损的五座桥梁进行了检测与评估。重点结合其中震损最严重的羊木桥的检测与评估工程实例,论述了混凝土空心板式梁桥的震害损伤检测内容与方法;采用桥梁结构有限元分析软件建立了结构模型进行计算分析;综合以上结果对桥梁承载功能进行了总体评估。依据检测与评估结论进而提出主梁、支座、盖梁等维修、加固建议。总结目前检测与评估的经验,对桥梁的抗震设计如限制主梁位移等提出一些建议。更多还原

【Abstract】 After "5·12" Wenchuan earthquake,inspection and evaluation on 5 damaged bridges on "Lanzhou-Chengdu-Chongqing" Oil Pipeline were carried out.With an engineering example of Yangmu bridge which is the most badly damaged,the inspection contents and methods of concrete hollow slab beam bridge were discussed.The structure models were builded for calculation and anylysis by the application of finite element analysis software.Then the load-carrying capacity was evaluated totally based on the above results.Recommendations of repair and reinforcement on girders,supports,bent cap,etc.were proposed,and the experience and defects of current inspection and evaluation were summarized.Further more,the application and development of bridge inspection and evaluation were discussed,and some suggestions for aseismatic design of bridges such as restricting the displacement of girders were put forward.更多还原