Measure And Analyse On The Surface Wind Pressure Of Yingli Building In Chongqing

Along with the development of science and technology,the height of tall building increases constantly. Wind load is one of the dominating loads which must be considered in the design of structures such as high-rise buildings, large-span spatial structures, towers and guyed masts. The main study method of wind engineering of structures is wind tunnel experiment.In this paper, the wind pressure distribution on the surface of Yingli Building in Chongqing is introduced.A wind tunnel test of Yingli Building rigid model is investigated in Beijing university environment wind tunnel laboratory. The average wind pressure and the pulsation wind pressure are given systematicly.Results are gained which can be used for design.The safety and the stability of the building can be protected.The main research has been done as follow:The frist part of the paper discusses the problem of the wind tunnel of the atmosphere boundary layer to imitate systematically. some wind characteristics in the atmosphere boundary layer and the alike standard are elaborated. The equipments and methods of the imitating are analyzed.The second part of the paper analyses the theory oundation of wind tunnel test.The basic information of Yingli Building in Chongqing is described.The test equipment and instrument are introduced. The model of Yingli building and the arrangement of measuring points are introduced in detail.The postulate and the test parameter of the building are given too.The third part of the paper infers the formulas of the coefficient of the average wind pressure and the pulsation coefficient of the wind pressure. The Vibration coefficient and the figure coefficient in all erect sides of the tower are analyzed.The Measure method of the pulsation pressure are discussed.The paper analyses the wind pressure on the surface of all sides of Yingli Building in Chongqing too, then draws a conclusion that the wind pressure distribution on the surface of the building.It can be used in the structure design of the building.