超龄服役桥梁实际承载能力评定方法探讨

Discussion on Evaluation Method of Actual Carrying Capacity of Over Age Service Bridges

建国以来,我国公路桥梁的设计荷载标准达37种之多,但评定不同时期桥梁承载能力应满足现行荷载通行的要求,否则应核定其目标荷载(限载);而评定桥梁承载能力有基本组合检算法和静载试验核定法,通过承载能力检算和静载试验验证相结合的方法核定桥梁的实际承载能力,阐明了对于确定桥梁目标荷载(限载)来讲,采用验算法即能评定桥梁实际承载力,为类似桥梁的适应性评定提供了借鉴。

Since the founding of the People's Republic of China,there are 37 kinds of design load standards for highway bridges in China,but the evaluation of the bearing capacity of bridges in different periods should meet the requirements of the current load,otherwise the target load (load limit) should be verified;and the evaluation of the bearing capacity of bridges has the basic combination of inspection algorithm and static load test verification method.The method of combining calculation with static load test verifies the actual bearing capacity of the bridge,and clarifies that the test algorithm can be used to evaluate the actual bearing capacity of the bridge for determining the target load (load limit) of the bridge,which provides a reference for the adaptability evaluation of similar bridges.