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为了满足造型和功能需要,体育场的罩棚倾角常常根据具体条件而变化,罩棚上扬、下俯均有所应用.通常罩棚与看台顶部留有环通的空隙,有利于场内通风,但也有一些场馆未留空隙.特殊的体型将对罩棚的风荷载产生影响,本文针对罩棚倾角变化和连接开缝情况两种因素对罩棚表面风压分布的影响进行了CFD数值模拟,给出了风压系数的变化规律,并与风洞试验结果进行了比较.
In order to meet the needs of modeling and function, the slope angle of the shed often varies according to the specific conditions, and the elevation of the shed and the pitch of the shed are applicable. Usually, the gap between the shed shed and the top of the grandstand is annular and conducive to ventilation in the field. However, No gap left.The special body shape will affect the wind load of the canopy.The CFD numerical simulation of the wind pressure distribution on the roof of the canopy is carried out based on the change of the canopy slope angle and the connection of the slits.The wind pressure coefficient The change rule is compared with wind tunnel test results.