Study on the wind pressure on the high-rise building model under natural wind

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Wind pressures on the high-rise building model under the natural wind were studied. The results are summarized as follows.1. The wind and pressure data in the distance variable changed from the time variable by using the wind speed data make clear the correspondence to the length scale of the model. The intermediate linear system between the dynamic pressure as input and the surface pressure as output defines the shape of kernel in integration, instead on the pressure coefficient in stationary condition.2. The strong wind damage to the roofing systems in Japan by a typhoon was evaluated quantitatively.3. Wind forces on the buildings by the strong wind in Tatsumaki were analyzed theoretically.4. Conical vortices over side face of a three-dimensional square prism were investigated by the flow visualization and wind pressure measurement in the wind tunnel. The correlations between pressure fluctuation and flow pattern were clarified.5. The local extreme suctions on the side of a prism model under the natural wind show the similar distributions to those in the wind tunnel.6. Aeroelastic instabilities of prismatic high-rise buildings were investigated in the wind tunnel. The characteristics of unsteady aerodynamic forces were clarified using the experimental data measured by the forced oscillating method in the case of square section.