摘要
数值模拟的风速时程曲线在桥梁时域抖振分析中被广泛采用.基于自然风特性及模拟点间的风速时程相关性,采用谐波合成法模拟了南京大胜关长江大桥的拱肋脉动风速时程.对风速时程的紊流度、功率谱和相关函数分别进行了检验,与目标值吻合良好.
Wind-speed time curves with numerical simulation have been widely applied in bridge time-domain buffeting analyses. Based on the characteristics of natural winds and the correlativity of wind-speed time histories between simulated points, this paper adopted the method of CAWS （constant amplitude wave superposition） to model after the rib wind-speed time histories of Dashengguan Changjiang Bridge in Nanjing. Tested respectively were the turbulence, power spectrum and related functions of wind-speed time histories, which fitted perfectly to the target values.
出处
《徐州建筑职业技术学院学报》
2008年第3期15-18,共4页
Journal of XUZHOU Institute of Architectural Technology
