2015/10/3 Shape factor for wind pressure Shape factor for wind pressure 音尚 列 苍 aure Dynamic effect factor at a height of z-Bz Gust factor-z ertion mdes shall be nds t tall ca tocofre'wind B.=1+2glnoB.I+R Gust factor-一Pgz Gust factor-Boz 本课件版权归作者所有，仅供个人学习使用，请勿转载。2015/10/3 8 Shape factor for wind pressure— s Shape factor for wind pressure— s rectangular section high-rise building which is more than 45 m Dynamic effect factor at a height of z — z  marked vibration of high soft structure by wind;  as the extension of structural period, the vibration increase;  more vibration modes shall be considered as to tall building. + 2 z   1 2gI B 1 R 10 z resonance component factor of fluctuating wind background component factor of fluctuating wind peak factor, which is2.5 turbulence intensity at 10 m, surface roughness of catorgy A, B, C, D is 0.12, 0.14, 0.23, 0.39, respectively Gust factor—gz  Considering the complexity of ground wind torrent, gust factor—gz is proposed  Applicable to calculation of fencing structure’s wind load;  Relevant to terrain roughness and height;  adopted with table 7.5.1 (GB 50009) Gust factor—gz Gust factor—gz 本课件版权归作者所有，仅供个人学习使用，请勿转载