| Vol. - No. | Vol.2 - No.3 |
|---|---|
| Date | Sep., 2013 |
| Title | Aerodynamic and Flow Characteristics of Tall Buildings with Various Unconventional Configurations |
| Author | Hideyuki Tanaka1+, Yukio Tamura2, Kazuo Ohtake1, Masayoshi Nakai3, Yong Chul Kim4, and Eswara Kumar Bandi2 |
| Institutions |
1Environmental Engineering Department, Takenaka Research & Development Institute, Takenaka Corporation, Chiba 270-1395, Japan 2Department of Architecture, Tokyo Polytechnic University, Kanagawa 243-0297, Japan 3General Manager, Advanced Structural Engineering Department, Takenaka Corporation, Tokyo 136-0075, Japan 4School of Architecture, Seoul National University of Science and Technology, Seoul 139-743, Korea |
| Abstract | Tall buildings have been traditionally designed to be symmetric rectangular, triangular or circular in plan, in order to avoid excessive seismic-induced torsional vibrations due to eccentricity, especially in seismic-prone regions like Japan. However, recent tall building design has been released from the spell of compulsory symmetric shape design, and free-style design is increasing. This is mainly due to architects' and structural designers' challenging demands for novel and unconventional expressions. Another important aspect is that rather complicated sectional shapes are basically good with regard to erodynamic properties for crosswind excitations, which are a key issue in tall-building wind-resistant design. A series of wind tunnel experiments and numerical simulation have been carried out to determine aerodynamic forces and wind pressures acting on tall building models with various configurations: corner cut, setbacks, helical and so on. Dynamic wind-induced response analyses of these models have also been conducted. The results of these experiments have led to comprehensive understanding of the aerodynamic characteristics of tall buildings with various configurations. |
| Keyword | Tall building, Corner modification, Setback, Tapered building, Helical-shaped building, Building with openings, Combined configurations |
| PP. | PP.213~228 |
| Paper File |
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