초고층건축물의 풍직각방향 풍하중 평가를 위한 변동풍력계수 및 풍력파워스펙트럼밀도계수의 제안

Abstract

This study aims at proposing an empirical equation of the across-wind fluctuating moment and spectral density coefficient as a function of the side ratios of buildings. In order to estimate empirical formula, wind tunnel tests have been conducted on aero-elastic model of rectangular prisms with various breadth-to-depth and side ratios 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.