摘要
考虑拉索垂度及几何非线性的影响 ,建立了斜拉桥拉索与桥面耦合振动的非线性参数振动精细模型 ,用龙格 库塔直接积分方法对典型拉索进行了数值求解。研究结果表明 ,拉索与桥面的耦合参数振动特性与索的垂度、振动频率、倾斜角度等有关。
The nonlinear parametric vibration of the coupled cables and bridge decks is studied in the paper. A model for the vibration of the coupled and girder is established; it is considered with the sag of cable as well as the geometric non linearity. A method of the Runge Kuta integration is used in the study. The results are shown that the vibration the coupled system is related with the sag of cable, vibration frequency, and inclined angle. At last, some useful conclusions are obtained.
出处
《土木工程学报》
EI
CSCD
北大核心
2003年第4期70-75,共6页
China Civil Engineering Journal
