桥梁检测是保证桥梁安全运营的重要手段,桥梁静载试验和动载试验能够了解桥梁实际工作状态和承载能力。本文结合某城市立交互通A匝道桥静动载试验,实测荷载作用下控制截面应力和变形情况,分析和判断桥梁结构的动力特性,为桥梁的安全使用提供依据。根据桥梁荷载试验的结果,对该桥的承载力进行评定,为同类桥梁检测评定提供参考。 Bridge testing is to ensure the safe operation of the bridge an important means of bridge static load test and dynamic test to understand the bridge’s actual working conditions and carrying capacity. In this paper, the static and dynamic load test of A-ramp bridge in an interchange of a city is taken into account. The stress and deformation of the control cross-section under the actual load are analyzed, and the dynamic characteristics of the bridge structure are analyzed and judged, providing the basis for the safe use of the bridge. According to the result of the bridge load test, the bearing capacity of the bridge is evaluated, which provides a reference for the testing and assessment of similar bridges.