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成桥荷载试验是检验桥梁施工质量,为交(竣)工验收提供依据的重要方法。以一座宽幅矮塔斜拉桥为试验对象,先进行索力及桥面线形的测量,然后进行成桥静动力荷载试验。结果表明,该桥索力均匀,线形平顺,结构强度及刚度满足规范要求,处于弹性工作状态,且有一定的安全储备,满足设计荷载要求,动力特性良好,可交付使用。
Bridge load test is to test the quality of construction of the bridge, to pay (completion) work to provide an important basis for inspection methods. Taking a wide and short tower cable-stayed bridge as the test object, the cable force and the bridge deck shape were measured firstly, and then the static and dynamic loading tests of the bridge were carried out. The results show that the bridge has the advantages of uniform load, straight line, strength and rigidity of the structure. It is in a flexible working condition and has a certain safety reserve to meet the design load requirements. Its dynamic characteristics are good and can be delivered for use.