Abstract
The wind-induced response of tall buildings is usually dominated by dynamic across-wind vortex shedding. The intensity of vortex shedding depends on not only the model configurations but also the turbulence around the structure. The building models with different configurations including chamfer, crown opening, and porous crown were tested in different turbulent conditions. The 10% chamfered ratio has a more considerable benefit in suppressing the intensity of vortex shedding compared with the 7.5% chamfered ratio. The slotted crown has a more beneficial effect in suppressing the wind-induced responses due to resonance caused by vortex shedding compared with the one without opening. The model with 50% crown porosity has a more considerable benefit in suppressing the intensity of vortex shedding compared with the solid crown. The model with turbulent condition both the suburban exposure and interference of surroundings has a more considerable benefit in disrupting the vortex shedding compared with the model in open exposure without interference.
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