环形人行天桥钢箱梁挠度变形的观测与分析

Observation and Analysis on Steel Box-girder Deflection Deformation of Ring Pedestrian Bridge

以乌鲁木齐市大西门环形人行天桥为工程背景,通过对环形钢箱梁两年的施工监控,根据实测数据,分析了使钢箱梁发生挠度变形的原因,其中温度效应在挠度变形中起着决定性的作用。该分析结果可为该地今后的桥梁建设提供参考。

Based on Urumqi Daximen ring pedestrian bridge,according to the construction monitoring and measured data,the authors analyze the reason for deflection deformation of steel box girder.Temperature effect plays the decisive role in the amount influencing factors.The analysis result may provide the reference for bridge constructions.