大林高架桥荷载试验分析

Load Test Analysis of Dalin Elevated Bridge

桥梁荷载试验是鉴定桥梁承载能力、评价桥梁现状的重要手段。为了保证桥梁使用的可靠性,检验桥梁结构的承载能力及其工作状况,对怀通高速24标大林高架桥进行静动载试验。文章介绍了大林高架桥荷载试验的测点布置、加载工况、测试结果及试验所需的试验荷载,测得控制截面的应力、挠度和频率等,并对该桥的使用性能做出评价。

Load test is an important means of assessing carrying capacity and evaluating current conditions of a bridge. A static and dynamic load test is carried out on Dalin highway elevated bridge of the twenty-fourth contract tenders in Huaitong with to ensure the reliability of the bridge and test the carrying capacity and working condition o f the bridge structure. The paper introduces test point arrangement, loading conditions and test results as well as the loads in the static and dynamic experiments for Dalin elevated bridge. The stress, deflection and frequency of the key sections were obtained by load test of Dalin. Elevated bridge. Furthermore, the service performance of the bridge was evaluated.