基于动静载试验的某市政桥梁性能评价

摘要

The paper test the state of a completed trafficway bridge. The test include static load test and dynamic load test,and the load is provided by heavy truck. The vertical deflection value,distribution of stress( strain),cracks of the components,impact coefficient of the control section, dynamic characteristics of the bridge can be obtained by the test. Test results show that the carrying capacity and working state of the bridge meet the demands of design and regular service.%针对某市政桥梁的成桥状态和性能进行了检测和评价，通过利用重车对桥梁进行静载和动载试验，测量了桥梁跨中截面的竖向挠度和应力（应变）分布、构件的开裂情况、控制截面的冲击系数、结构的动力特性等指标，进而对该桥梁的性能进行评估，研究结果表明该桥承载能力及工作状况符合设计要求和满足正常的使用要求。