【摘要】 基于AR模型,研究了脉动风的数值模拟方法,编制了瞬时风速和风荷载的模拟程序.将此方法推广到斜拉索结构,模拟计算了苏通大桥A34拉索的风速与风荷载.通过模拟谱与目标谱的对比,证明该方法准确性高,并为下一步斜拉索的振动时程分析提供了激励源.更多还原

【Abstract】 Based on AR model,the fluctuating wind of numerical simulation method was studied,and the wind speed and wind pressure load procedures were compiled.The method was extended to cable-stayed struture,and the wind speed and wind pressure of A34 cable on the SU-TONG stayed Cable Bridge were simulated by comparison between the simulated spectrum and the target spectrum.The method is proved to be highly accurate,providing excitation for the next time-history vibration of the stayed cable.更多还原