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Numerical simulation of mean interference effects for the interfering buildings with different heights
作者姓名:郑朝荣  张耀春
作者单位:School of Civil Engineering,Harbin Institute of Technology
摘    要:The mean wind-induced interference effects between two high-rise buildings, in which the interfering buildings have different heights, were numerical simulated in the terrain roughness of B and D types by the Reynolds stress equation model(RSM) of fluent. The results are in good agreement with those of the wind tunnel test. Influences of the relative arrangement of two buildings, the height of the interfering buildings and the terrain roughness upon the mean interference effects were analyzed, and the space distributions of IFcp^s on the principal building under tandem arrangement were studied. The results indicate that the lower interfering buildings can always bring larger interference factors comparing to the higher ones under tandem arrangement except that the height is larger than 1.25h, and the heights'influence on the mean interference effects will increase as the reduced spacing of two buildings. The influence of heights will be little under stagger arrangement.

关 键 词:高层建筑  风载荷  雪载荷  建筑设计

Numerical simulation of mean interference effects for the interfering buildings with different heights
ZHENG Chao-rong,ZHANG Yao-chun.Numerical simulation of mean interference effects for the interfering buildings with different heights[J].Journal of Harbin Institute of Technology,2008,15(4):499-505.
Authors:ZHENG Chao-rong  ZHANG Yao-chun
Affiliation:School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
Abstract:The mean wind-induced interference effects between two high-rise buildings,in which the interfering buildings have different heights,were numerical simulated in the terrain roughness of B and D types by the Reynolds stress equation model(RSM)of fluent.The results are in good agreement with those of the wind tunnel test.Influences of the relative arrangement of two buildings,the height of the interfering buildings and the terrain roughness upon the mean interference effects were analyzed,and the space distributions of IFCPs on the principal building under tandem arrangement were studied.The results indicate that the lower interfering buildings can always bring larger interference factors comparing to the higher ones under tandem arrangement except that the height is larger than 1.25h,and the heights' influence on the mean interference effects will increase as the reduced spacing of two buildings.The influence of heights will be little under stagger arrangement.
Keywords:high-rise building  numerical simulation  mean interference effects  terrain roughness  analysis of the flow field
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