Study On The Wind Load Characteristics Of The Obliquely Concave Station House And Platform

Railway station and platform are novel in structure and unique in shape.In order to ensure the safety of structures,special attention must be paid to structural wind load.Taking the typical oblique concave train station-someone railway station as the engineering background,a scale ratio of 1:150 model is built and wind tunnel tests are carried out.According to the wind pressure data obtained under the typical degree angle(0°?45°?90°?180°)of the station and platform,the wind pressure characteristics of the railway station and the platform rain shed in someone railway station are studied,which provide scientific support for the determination of the wind load in the engineering design.On the basis of a brief introduction to the background of wind engineering research and the research status at home and abroad,the main work accomplished by the paper includes:(1)The scale model of wind tunnel test was made with the typical inclined concave curved surface roof station and the platform of someone railway station as the background project.The layout of wind pressure measurement point and the test condition were designed,and the wind tunnel test was carried out.(2)According to the wind tunnel test results,the maximum and minimum maximum wind pressures of the block type coefficient,the 50 year recurrence period and the 100 year recurrence period are calculated.(3)According to the wind tunnel test results,the maximum and minimum maximum wind pressure of the canopy type coefficient,the 50 year recurrence period and the 100 year recurrence period are calculated.(4)The equivalent static wind load of the station is studied,and the average wind-induced response,fluctuating wind-induced response and wind-induced vibration coefficient of the station are calculated.