某小箱梁桥旧桥加宽现场荷载试验

Field Load Test for Widening of Old Bridge of a Small Box Girder Bridge

随着交通量的不断增加,部分道路呈现出通行能力和服务水平低下、在拓宽改造中旧桥加宽可以有效提高旧桥的承载能力和延长桥梁的使用寿命。桥梁的健康性能是评价桥梁运营情况的承载能力的重要指标之一,现对某加宽桥进行现场荷载试验,测定桥梁结构的性能,用以验证,并为以后同类桥梁检测及试验提供一定经验。

With the increasing of traffic volume,some roads show low capacity and service level,and the widening of the old bridge in the process of widening and rebuilding can effectively improve the carrying capacity of the old bridge and prolong the service life of the bridge.The health performance of the bridge is one of the important indexes to evaluate the carrying capacity of the bridge.The field load test is carried out to test the performance of the bridge structure and provide some experience for the similar bridge testing and testing in the future.