厦门市中洲岛西溪大桥动载试验分析

DYNAMIC LOAD TEST AND ANALYSIS FOR XIXI BRIDGE OF ZHONGZHOU ISLAND IN XIAMEN

在受到动荷载作用时,桥梁结构会受到震动和冲击,已成为桥梁结构设计、计算、施工、运营、维修、养护和管理过程中的重要问题之一。通过动力荷载试验以及结构固有模态参数的实桥测试,了解桥跨结构的动力特性以及各控制部位在使用荷载下的动力性能,除了可用来分析结构在动荷载作用下的受力状态外,还可验证或修改理论计算值,并作为结构设计的依据。

Under the impact of dynamic load ,the bridge structure will be subject to vibration and shock. It has become one of the important issues in the process of designing, computing, construction, operation, maintenance, conservation and management in bridge. Through the dynamic load test and the inherent structure modal parameters of actual bridge test, comprehending the dynamic characteristics of the bridge structure and the dynamic performance of the various parts of the control under the workload. It can be used to analyze the stress state of the structure under dynamic load,verify or modify the theoretical value,and also serves as a structural basis for the design.