Simiu Emil, Heckert N Alan, Yeo DongHun
NIST Fellow, Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899.
Computer Specialist, Information Technology Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899.
J Struct Eng (N Y N Y). 2017;143(8). doi: 10.1061/(asce)st.1943-541x.0001804.
According to recent results of planetary boundary layer research relevant to the design of tall buildings subjected to large-scale synoptic storm winds, for elevations of up to at least 1 km, the longitudinal mean wind speeds are monotonically increasing with height. It is shown that, for this reason, to avoid the possible unconservative design of supertall buildings significantly affected aerodynamically by neighboring buildings, an explicit derogation from the ASCE 7 standard specification of the gradient heights is necessary for buildings with heights greater than .
根据近期与遭受大规模天气尺度风暴风的高层建筑设计相关的行星边界层研究结果，对于至少高达1千米的高度，纵向平均风速随高度单调增加。结果表明，因此，为避免受相邻建筑物显著气动影响的超高层建筑可能出现的非保守设计，对于高度大于 的建筑物，有必要明确偏离美国土木工程师协会（ASCE）7标准规范中的梯度高度。
