提篮式系杆拱桥施工监控方法及分析

Construction Monitoring Method and Analysis of Basket Tied Arch Bridge

桥梁施工监控工作即为通过精细化的仿真分析,及时制订合理的调整方案,确定成桥目标,以确保结构无应力合拢。在实际施工过程中,难免存在误差,这些误差将可能导致最终成桥线形及内力状态与设计不符,施工监控的目的就是通过跟踪测量,指导施工,不断调整误差,以达到最终设计目标线形。本文结合工程实例,详细介绍提篮式系杆拱桥的施工监控任务、方法及预警保障系统,并对今后类似桥梁的设计、施工、监控提出建议。

The bridge construction monitoring work is to make a reasonable adjustment plan in time and determine the bridge target through the fine simulation analysis,so as to ensure the structure without stress closure.In the actual construction process,it is inevitable that there will be errors,which may cause the final bridge alignment and internal force status to be inconsistent with the design.The purpose of construction monitoring is to guide the construction through tracking measurement and constantly adjust the errors to achieve the final design target alignment.This paper introduces the construction monitoring task,method and early warning guarantee system of the basket tied arch bridge in detail,and puts forward suggestions for the design,construction and monitoring of similar bridges in the future.