高層建物が周辺低層建物の壁面風圧に及ぼす影響に関する風洞模型実験

概要

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Wind pressure which is source power of cross-ventilation is usually influenced by surrounding buildings. A high-rise building often weakens the wind in the wake of it, and obstructs the cross-ventilation of low-rise houses around it. The distributions and changes of wind pressure coefficients of low-rise houses are investigated in this paper. Two types of building layouts were tested here; one consists of only low-rise houses, and the other includes a high-rise building. The former is changed by the building coverage ratio, from 0% to 25% at intervals of 5%, and by the wind direction, from 0 to π/2 at intervals of π/12. There is a high-rise building at the center of the layout of low-rise houses with building coverage ratio of 25% in the latter type. It is changed by the height of the high-rise building; 5-storied, 10-storied and 15-storied building. On of the results of the former case is that the values of the wind pressure coefficient come nearer to 0 when the building coverage ratio is higher. The results of the latter case shows that the higher the high-rise building, the greater effects on the wind pressure on the low-rise houses, and that the wind pressure coefficients of the low-rise houses far from the high-rise building get close to those of the former case.
社団法人日本建築学会の論文
1995-12-30