论文部分内容阅读
本文详细介绍了顶升技术及其在桥梁加固中的应用,重点介绍了用于增设辅助墩加固法。增设辅助墩法需要通过桥梁顶升托换实现,但是,顶升托换是一种复杂的体系转换过程,必须通过仿真分析方法对桥梁顶升前、顶升过程及顶升后桥梁状况进行分析计算,从而合理确定设计与施工方案,以确保施工过程的安全可靠。通过对某三跨连续梁桥的加固过程的计算分析,确定同步顶升的设计控制值,指导了顶升实际施工过程。经与现场监控结果对比,计算分析结果准确合理。
This paper introduces the jacking technology and its application in the bridge reinforcement in detail. The emphasis is put on the method of adding auxiliary pier reinforcement. However, ascent and underpinning is a complicated process of system conversion. Before and after the ascending process, the bridge must be analyzed by simulation analysis method Calculation, so as to reasonably determine the design and construction programs to ensure the construction process is safe and reliable. Through the calculation and analysis of the reinforcement process of a three-span continuous girder bridge, the design control value of the synchronous jacking is determined, which guides the actual construction process of jacking. Compared with the on-site monitoring results, the calculation and analysis results are accurate and reasonable.