Study On Wind Tunnel Test Of Chongqing Tiancheng Building

With nearly three decades the rapid development of China's economy, super-rise building has been vigorous development of space and played the iconic role in the process of modernization in the city. Meanwhile, due to wind load, super-rise buildings'safety, economical and comfort have been further challenge. This thesis is to research the characteristics of super-rise building wind pressure. The characteristics of the main structure of the wind pressure are discussed only, but no the podium section of Tiancheng Building. The thesis is based on Wind Tunnel Test of Chongqing Tiancheng Building. This thesis analyses the wind pressure distribution and characteristics of Tiancheng Building in the frequency domain. Then, this thesis applies Proper Orthogonal Decomposition (POD) method to decompose. Following points are main achievement of this thesis.The first part of the thesis gives a detailed description of the wind tunnel tests, including research equipment and methods, the boundary layer simulation, and the model design, production, at last, introduces the follow-up data processing methods.The second part of the thesis analyses wind pressure distribution and characteristics of Tiancheng Building in the frequency domain. Frequency domain characteristics of the specific height are analyzed in the specific wind direction. And frequency domain characteristics of wind pressure are researched with the change of wind pressure coefficient along the height. Finally, the surface wind direction and wind pressure coefficients of horizontal and vertical correlation are analyses under a particular angle.The third part of the thesis decomposes and reconstructs the pressure taps of the some main body structure by the Proper Orthogonal Decomposition (POD) of wind pressure specified at non-uniformly distributed, compare with the original pressure, calculate the error between them, and analyzes the causes of these errors. In addition, it forecasts the wind pressure coefficient of the non-arrangement pressure points under the proper orthogonal decomposition (POD) method and the original wind field theory.