新建桥梁对邻近既有桥梁的影响分析

Analysis of the Impact of Newly-built Bridges on Adjacent Existing Bridges

为了研究新建桥梁对邻近既有桥梁的影响,以某跨海大桥两侧拼宽改造项目为背景,以有限元软件Midas GTS NX为分析建模工具,对新旧桥梁进行分析,得出新建桥梁施工过程中既有桥梁的安全控制指标,并提出控制既有桥梁沉降的措施,为类似条件下的桥梁工程提供参考。

In order to study the impact of newly-built bridges on adjacent existing bridges,taking the widening renovation project on both sides of a cross-sea bridge as the background and using the finite element software Midas GTS NX as the analysis and modeling tool,the safety control indicators of existing bridges during the construction process of newly-built bridges are obtained through the analysis on new and old bridges,and measures to control the settlement of existing bridges are put forward,so as to provide reference for bridge engineering under similar conditions.