高速铁路超大跨度连续梁桥施工监控分析

Construction Monitoring Analysis of Ultra Long Span Continuous Beam Bridges on High-speed Railways

本文依托贵南高铁广西段某大桥项目,对该大桥连续梁施工过程实施监测,首先根据施工监测目的以及桥梁特点,确定了本项目的主要监测项目,在施工过程中通过监测值与计算值的实时对比分析,主要从线形监测和应力监测两个方面对梁桥进行施工控制,监控结果表明,整个线形控制以及张拉效果良好,为今后类似工程提供有益参考。

This article relies on a large bridge project in the Guangxi section of the Guinan high-speed railway to monitor the construction process of the continuous beam of the bridge.Firstly,based on the construction monitoring purpose and the characteristics of the bridge,the main monitoring items of this project are determined.During the construction process,through real-time comparative analysis of monitoring values and calculated values,the construction control of the beam bridge is mainly carried out from two aspects:linear monitoring and stress monitoring.The monitoring results show that,The overall linear control and tensioning effect are good,providing useful references for similar projects in the future.