大跨度独塔斜拉桥动荷载试验与分析

基于有限元分析理论，借助有限元通用计算程序，以独塔斜拉桥为工程背景，对该桥的自振特性进行了理论分析，并通过对结构进行的动荷载试验，将现场采集的试验数据与理论计算数据进行了对比分析，发现自振频率理论值低于实测值，冲击系数实测值比理论值小，说明结构实际刚度比理论刚度大，具有较好的抗冲击性能。

Dynamic Test Research of Long - span Single Tower Cable - stayed Bridge

Based on the finite element analysis theory and with the aid of the finite element general computational procedure,take the single tower cable-stayed bridge as the project background,has carried on the theoretical analysis to this bridge self oscillation characteristic and passes to the structure carries on moves the load experiment. Has carried on the contrast analysis the scene gathering tentative data and the theoretical calculation data,discovered the base frequency theoretical value is lower than the actual value,the impact coefficient actual value is smaller than the theoretical value. Explained the structure actual rigidity is bigger than the theory rigidity and has the good anti-impact performance.