半刚构-连续箱梁桥动静载试验研究

Experimental Research on Dynamic and Static Load of Semi-rigid Continuous Box Girder Bridge

桥梁动静载试验是检测桥梁结构安全的重要方法,可准确评价桥梁结构的受力性能和实际工作状态。文中依据JTG/T J21-01—2015《公路桥梁荷载试验规程》,对陶赖昭特大桥主桥进行动静载试验,测试桥梁结构的挠度、应变及动力特性,并与理论值进行对比分析。结果表明,桥梁处于弹性受力状态,强度及刚度满足设计要求,动力响应及动力特性良好。

Dynamic and static load test of bridge is an important method to test the safety of bridge structure,which can accurately evaluate the mechanical performance and actual working state of bridge structure.According to JTG/T J21-01-2015 Load Test Methods for Highway Bridge,dynamic and static load tests were carried out on the main bridge of Taolaizhao Large Bridge to test the deflection,strain and dynamic characteristics of the bridge structure,compared and analyzed with the theoretical values,the results show that the bridge is in the elastic stress state,the strength and stiffness meet the design requirements,the dynamic response and dynamic characteristics are good.