新建桥梁对既有结构的安全性影响评估

Safety Impact Assessment of New Bridges on Existing Structures

依托某城市新建桥梁基础工程,采用Midas有限元分析软件,分析了桥梁桩基础施工过程对既有结构的影响,并对既有结构安全性进行了评估.结果表明:该新建桥梁桩基开挖及加载过程对既有管道基础的影响较小,且不影响既有桥梁的正常使用,整体施工风险可控.

Based on a newly built bridge foundation project in a city,the influence of bridge pile foundation construction process on existing structures is studied by using finite element analysis method,and the safety of existing structures is evaluated. The research shows that during the excavation and loading process of the new bridge pile foundation,the influence of the existing pipeline foundation is relatively small,and it does not affect the normal use of existing viaducts,and the overall construction risk is controllable.