The Study Of The Comfort Of High-rise Building In The Interference Effects

As the height of the building is increasing in the city, the wind load has become a major andcontrol one of the load in the design of a high-rise building structure. In addition, because of therapid increase height, damping ratio become small, human comfort of high-rise building becomea primary and control factor in the wind load. With the emergence of high-rise buildings, urbanspace composition is getting more and more complicated, wind-induced interference effectsbecome more evident among buildings. A combination of the high-rise building of humancomfort and wind-induced interference effect can be obtained two big problems: In thewind-induced interference effects of comfort study of high-rise buildings is very necessary. Atpresent, because the research on this issue is very limited, this paper studies comfort of thehigh-rise buildings in the wind-induced interference effects deeply and particularly.This article researches comfort of the high-rise buildings in the wind-induced interferenceeffects with the computer numerical simulation method. First, on the foundation of averageNavier-Stokes equation and turbulence model,it establishes the basic equation of turbulent flowand determine the corresponding numerical discrete and the solution of SIMPLE.Afterwards,itconducts the numerical simulation of XinJinJiang hotel in Shanghai in isolated state withoutinterference with the k standard model and the imbalances wall function method of deallingwith the state of the turbulence which is near the wall,and then the calculated results and windtunnel test results were compared. Thus the correctness and efficiency of numerical simulation inthis paper is verified. On this foundation, this paper studies and analyses comfort of two high-risebuildings in the wind-induced interference effects systematically and deeply. Due to theinfluence of the high-rise building wind-induced interference effects has many factors, this textonly selects layout forms and spacing of two high-rise buildings as influencing factors. And itintroduces the study of the method of orthogonal test design scheme.This paper selects35working conditions which are representative in the area of the study and calculates and analysesthem systematically. Along with the change of the position of the building which is on theinterference,it gets the change rule of the vertex acceleration in along wind and across wind ofthe interfered building.It gives a certain reference to the related wind design of high-risebuildings. This paper also studies comfort of three high-rise buildings in the wind-induced interferenceeffects preliminarily. Because layout forms of the three buildings are too complex and time islimited, This paper mainly studies and analyses in the first quadrant of the area of the study. Thispaper selects48working conditions which are representative and calculates and analyses them.Along with the change of the position of the two buildings which are on the interference,it getsthe preliminary change rule of the vertex acceleration in along wind and across wind of theinterfered building. It gives a certain reference to the related wind design of high-rise buildingsand further research work.