NUMERICAL SIMULATION ANALYSIS OF WIND LOAD ON CANOPY OF ELEVATED PLATFORM OF HIGH-SPEED RAILWAY
In order to reasonably determine the wind load of the canopy without platform pillars in railway elevated stations,a full-size CFD model was established.The flow field under different wind direction angles was numerically simulated,and the wind pressure distribution and local shape coefficient on the canopy surface were obtained.The results show that:(1)under the wind direction angle of 0°and30°,the front edge of the upper surface of the platform canopy has a large negative pressure,so it is necessary to strengthen the ability of the outside edge of the canopy 1 and 3 to resist the wind suction.(2)The distribution of local body shape coefficient of canopy along the length direction was different.When the wind direction was 0° and 30°,the local body shape coefficient of canopy 1 was larger in the range of 75～220 m from the center line,and the maximum body shape coefficient was-1.40.
万方数据
维普
