同步顶升更换支座的过程模拟及效果分析

Process Simulation and Effect Analysis of Support Replacement by Synchronous Lifting

结合哈尔滨市二道河桥加固维修工程实例,分析其更换支座过程中主梁应力、主梁位移及T梁近端主应力值等的变化情况,并与成桥模型计算值进行比较,分析该桥更换支座过程中梁体的受力状态发生的变化,并结合该桥加固后的荷载试验,验证了其加固改造效果。

In combination with the reinforcement and maintenance project of the bridge over Erdaohe river in Harbin,the changes of main beam stress,main beam displacement and main stress value of near end of T-beam in the process of support replacement are analyzed,and compared with the calculated value of the model of the completed bridge.The changes of stress state of beam body in the process of bridge support replacement are analyzed.In combination with the load test after the reinforcement of the bridge,the reinforcement and reconstruction effect is verified.