Research on Driving Wind Environment in Pylon Zone of Cable-stayed Bridge
Wang Tongshun;Zheng Liang;
In this paper, the numerical wind tunnel method is used to numerically simulate the three-dimensional flow field in a pylon zone of cable-stayed bridge. After the study on high driving wind environment of pylon zone under three conditions of no monitoring room, no wind barrier and wind barrier,the result shows that various lane wind speed influence coefficients in the pylon zone change greatly during no wind barrier because of pylon influence, and the effect obvious increases near thepylon. If no monitoring room, the maximum value of wind speed influence coefficient does not change greatly, and the influence of monitoring room is smaller on the driving wind environment of pylon zone.After the wind barrier is set up, the curve of wind speed influence coefficient is slowing down, and the sharp change of wind speed influence coefficient near bridge pylon is effectively eliminated. The setup of wind barrier can effectively ensure the driving safety in the strong wind environment.
【CateGory Index】： U442.59;U448.27