带挂梁的T型刚构桥承载能力状态评估

State Evaluation of Bearing Capacity of T-type Rigid Frame Bridge with Suspended Beams

为了解某运营中带挂梁的T型刚构桥实际工作状态的安全性与最不利受力状态下的承载能力,运用结构有限元分析软件对该桥进行了仿真分析,分析其在设计荷载作用下结构变形与应力状态。同时,对该桥进行实桥静荷载试验,并与仿真分析结果相对比,分析其实际工作状态与承载能力。最后,对结构混凝土材质状况指标进行分析评定,确定结构混凝土构件实际工作状态,为桥梁养护与维修提供理论依据。

In order to understand the safety of a T-type rigid frame bridge with suspended beams in actual working state and the bearing capacity under the most unfavorable loading state,the finite element analysis software is used to simulate the bridge and analyze its structural deformation and stress state under the design load.At the same time,the static load test of the bridge is carried out,and compared with the simulation results,the actual bearing capacity and operation status of the bridge are analyzed.Finally,the index of material condition of structural concrete is analyzed and evaluated,and the actual working state of structural concrete components is determined,which provides theoretical basis for bridge maintenance and repair.