摘要
从测试系统的组成,测试截面、测试方法的选取、加载工况等几个方面论述了动载荷试验在青岛某大桥变形监测中的应用。最终的动载荷试验数据表明:跑车作用下实测桥的最大动力放大系数小于规范中的计算值;跳车试验动应变增加明显,说明保证桥面通畅对减少桥梁冲击荷载很重要。
The application of dynamic load test in deformation monitoring of a bridge of Qingdao was described in terms of test system makeup,selection of test section and test methods and loading working condition.The final dynamic load test data show that,the maximum dynamic magnification coefficient under action of running cars is less than the calculated value in the specification while dynamic strain of jumping test increases significantly,this indicates that ensuring smooth running of the cars on the bridge surface is very important for reducing the impact load of a bridge.
出处
《工程建设》
2011年第4期38-41,共4页
Engineering Construction
关键词
动载荷试验
跑车试验
跳车试验
动应变监测
dynamic load test
running test
jumping test
dynamic strain monitoring
