| Title |
Empirical Formulae for Estimating the Across-Wind Force of Rectangular Tall Buildings |
| Authors |
Ha Yeong-Cheol ; Kil Young-Sig ; Kim Dong-Woo |
| Keywords |
Tall Building ; Roughness ; Aspect Ratio ; Side Ratio ; Across-wind Force ; Fluctuating Wind Force ; Power Spectrum |
| Abstract |
This study aims at proposing empirical formulae of the across-wind fluctuating moment and spectral density coefficient, which is needed to estimate across-wind response of tall buildings. In order to estimate empirical formula, the wind tunnel tests have been conducted on 52 types aero-elastic model of the rectangular prisms with various aspects ratios, side ratios and surface roughness in turbulent boundary layer flows. In this paper, criteria of across-wind fluctuating force and spectral density are briefly discussed and then these results were mainly analyzed as a function of the side ratios of buildings. Finally, approximate equation for the across-wind fluctuating moment and spectral density coefficient were proposed. The proposed empirical formulae are to be compared to those of the Recommendations of AIJ. |