Study on wind response and equivalent static wind load of high-rise buildings

high-rise buildings;  wind loads;  wind response;  High frequency balances

Starting from the vibration theory of cantilever beams, the calculation of wind response of high-rise buildings and the principle of measuring wind loads of high-rise buildings by using high-frequency balances in wind tunnels are discussed, and the determination of average wind force, pulsating wind, wind-induced vibration inertial force and equivalent static wind load required for building structure design is further analyzed and discussed, and the limitations and application scope of the proposed method are pointed out, which can provide reference for wind load determination in the structural design of high-rise buildings. The analysis results show that the method of finding the equivalent static wind load along the height distribution of high-rise buildings is suitable for downwind force, and there is a theoretical error due to the influence of vortex shedding force when applied to crosswind wind.