连续刚构桥悬臂施工阶段温度效应研究

摘要

以流溪河特大桥为工程背景,通过有限元软件建立该桥悬臂施工阶段仿真模型,并对箱梁的温度效应进行分析计算.得出温度变化对桥梁悬臂施工阶段应力和变形的影响,并通过温度场试验数据与理论计算数据进行对比,验证了模型计算的正确性,为同类桥梁施工监控提供参考.%Based on Liuxihe long-span brige, using finite element software the simulation model of the bridge at cantilever construction phase is established, and analyed the temperature effect of the box girder, then put forword the impact of stress and deformation to the bridge. Then comparing the experimental data and the theoretical data the correctness of the model calculations is verifyed. Reference for similar bridge construction monitoring can be provided.