琼州大桥维修加固及静载试验研究

Reinforced Methods and Static Load Test for Qiongzhou Bridge

对琼州大桥存在隐患的吊杆进行了更换;琼州大桥荷载试验的数据分析表明,该桥的上下游拱肋应力、挠度与理论计算值变化趋势基本一致,各个测试工况下的控制点挠度、应力、吊杆索力小于计算数值.该桥的加固措施达到了预期的效果.

Some cables of Qiongzhou Bridge exists hidden danger after the operation over a period of time. Hence, these cables are replaced by new cables with the same type. After this reinforcement,static load test is performed on Qiongzhou Bridge. The experimental test results of Qiongzhou Bridge indicate that the experimental values of stresses and deflection of both left and right arch rib have the same tendency of changes with the theoretical calculating values. In addition the stresses and deflection of arch and cable tensions for all test cases are less than the calculated results,which means that the reinforcement of this bridge have achieved expected effect.