| Title |
Study for Interference Effects on Local Wind Pressures Acting on High-rise Buildings |
| Authors |
Kim Won-Sul ; Tamura Yukio ; Yoshida Akihito |
| Keywords |
Interference Effects ; Local Wind Pressure ; Cladding Design ; High-rise Building |
| Abstract |
Most wind codes or standards have been established for isolated buildings. In real environment, the effect of wind load on a group of high-rise buildings could be quite different from that of isolated tall building and its surrounding tall buildings can either increase or decrease not only the whole wind load, but also wind loads locally affecting cladding. Some Wind Standards such as AIJ(2004), AS1170.2(1989) and ASCE7-05(2005) have incorporated design wind loads on buildings and cladding due to effects of mutual interference by neighboring and structures, but there is no concrete information. In this paper, local peak wind pressure coefficients between two identical tall buildings were studied by using wind tunnel experiments, under various locations of interfering buildings and wind directions. The measured peak wind pressure coefficients were compared with those previously obtained from the study of an isolated building. In addition, this study also investigated the interference effects of smallest minimum wind pressure coefficient under various wind angles. The interference effects were examined and presented in detail. The results show that the local peak wind pressure coefficients on the walls of a principal building largely depended on the wind angles and the location of interfering buildings in the wake region. |