Wind load on the crescent-shaped long-span cantilevered roof in stadium

Wind load is the main control load of the crescent-shaped long-span cantilevered roof.In this paper,High-frequency-pressure-integration wind tunnel testing was carried out to investigate the mean,the fluctuating and the extreme wind load distributions on the crescent-shaped cantilevered roofs located on opposite sides,utilizing the Lingwu Sports Center as an example.The purpose of this paper was to offer a reference for wind force proofing design of the same types of structures.The test results show that: different characteristic turbulence was formed on the roof surface in different wind directions due to the changes of the roof's inclination.For the whole roof,the mean wind load and fluctuating wind load change evenly with the wind direction,and the values of the mean wind load and fluctuating wind load of the roof on the downstream of the oncoming flow were bigger than that of the roof on the upstream of the oncoming flow.The extreme wind load on the upper surface of the roof is generally bigger than that on the lower surface and changes more violently.