城市立交桥梁安全监测应用研究  

Application research on safety monitoring of urban overpass bridges

作　　者：黎兆丰 Li Zhaofeng(Guangzhou Traffic Design and Research Institute Co.,Ltd.,Guangzhou 511430,China)

机构地区：[1]广州市交通设计研究院有限公司,广东广州511430

出　　处：《山西建筑》2021年第16期140-141,共2页Shanxi Architecture

摘　　要：城市立交桥是城市道路中重要的一部分,是解决城市车辆出行问题的重要基础设施之一。随着城市的不断发展,道路交通量增加,部分旧有城市立交桥出现了严重影响结构正常使用的问题。以某座已运营多年的城市立交桥为背景,在部分已出现问题的桥梁构件上安装设备,监测问题构件在立交桥梁运营期间的状态情况。监测结果显示,由于桥梁受日照差异影响,墩柱长期在温度应力作用下,而导致部分构件出现问题,影响桥梁的正常使用。Urban overpass is an important part of urban roads,is one of the important infrastructure to solve the problem of urban vehicle travel.With the development of the city and the increase of traffic,some old urban flyovers have serious problems affecting the normal use of the structure.In this paper,a city flyover that has been in operation for many years is taken as the background,and equipment is installed on part of the bridge components that have problems,and the state of the problematic components is monitored during the operation of the flyover bridge.The monitoring results show that because the bridge is affected by the sunshine,the pier column is under the action of temperature stress for a long time,which leads to the problems of some components and affects the normal use of the bridge.

关 键 词：温度效应 桥梁设计 桥梁监测 倾角传感器 

分 类 号：U448.15[建筑科学—桥梁与隧道工程]