인접건물에 의한 고층건축물의 피크국부풍압 분포 I

Local peak pressures between two buildings were studied by using wind tunnel experiments for various locations and height ratios of an interfering building and wind directions. The measured local peak pressure coefficients were compared to those obtained previously from a study on an isolated building. The experimental results have been examined and presented from the viewpoint of cladding design. The results show that at wind direction θ=135°, minimum peak pressure coefficient on the front surface of the principal building with the interfering building for H r ≥1.5 at (S x , S y )=(1.5B,0) tends to increase generally and the smallest values of minimum peak pressure coefficients on the front surface of the principal building were -4.7(H r =1.5), -5.7(H r =2.0), while the smallest value of minimum peak pressure coefficient on the isolated building was -3.5. It can be explained by the fact that an increase in energies is associated with the reattaching shear layers on the principal building caused by high turbulence, thus significantly increasing the suction.