大跨度悬索桥随机风场的模拟研究

Research on the simulation of turbulent wind velocity of large-span suspended bridges

利用改进的线性滤波器法模拟具有空间相关性的脉动风荷载,给出了用该方法模拟脉动风荷载的步骤.利用MATLAB编写了模拟的具体程序,并把程序应用于鼓山大桥脉动风荷载模拟,将模拟值与目标值进行校验.结果表明,模拟的效果较好,可满足工程实际的需要.

The technology of autogressive-type simulation method is introduced to simulate turbulent wind loading with time and spatial correlation.Then the paper gives autogressive-type simulation process and MATLAB program.Turbulent wind velocity of Gushan bridge over Minjiang river is generated with this program and the result indicates that the program is good,which can meet engineering requirements.