WIND TUNNEL EXPERIMENTS ON PEAK WIND PRESSURE COEFFICIENTS FOR LOW-RISE BUILDINGS SURROUNDING A HIGH-RISE BUILDING

Abstract

This study investigates the peak wind pressure coefficients on the roof and walls of the lowrise buildings surrounding a high-rise building by wind tunnel experiments. A total of 72 wind directions were considered from 0 to 355 degrees by 5 degrees, and the influence of the wind direction on the peak wind pressure coefficients of surrounding buildings was evaluated. At a wind direction angle of 30 degrees, both the positive and negative peak wind pressure coefficients occurred in a low-rise building located leeward side of a high-rise building. The positive peak pressure appeared at the windward corner on the front wall of a low-rise building and the value was about 1.5 times as large as that in the case of no high-rise building, and the negative peak value was observed at the windward edge on the roof of a low-rise building and the value was about 3 times as large as that in the case of no high-rise building.