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在采用悬臂浇筑法施工的桥梁中,合龙段施工是整座桥梁上部构造施工的关键环节,确定合理的施工时间是确保合龙段达到要求的关键。本文介绍了使用Leica TCA 2003测量机器人和温度测量设备采集连续梁桥合龙前挠度与温度的相关数据,在着重分析了挠度和温度在合龙前两者之间的关系上,确定合龙段正确的施工时间。并指出了通常认为在一天中温度最低时刻进行合龙施工的认识是有误的。
In cantilever pouring construction of the bridge, the construction of the closure section of the bridge is the key to the construction of the upper part of the bridge, to determine the reasonable construction time is to ensure that the closure of the key to meet the requirements. In this paper, the data about the deflection and temperature before slamming of a continuous beam bridge are collected by using the Leica TCA 2003 measurement robot and temperature measurement equipment. The relationship between the deflection and the temperature before slamming is analyzed, and the correct construction of the closing section is confirmed time. And pointed out that it is generally mistaken to think that the construction of the bridge should be carried out at the lowest temperature of the day.