Study On Wind-Induced Respones And Comfort Of A Super-High Building

In recent years, with the rapid development of economy,and population growing in China, super-high buildings are growing with high speed in recent decade. Super-high buildings belong to flexible structure, wind-induced responses will be relatively large. So the structure of wind effect gradually becomes the main governing factor of safety, comfort and the economy of super-tall building. For tall building wind effects and comfort research is the only way to settle this factor. Taking guangzhou ShangDong HanYu YaYuan super-high residential building structure for engineering background, this thesis contain wind tunnel pressure test on rigid models and high-frequency dynamic balance test, and the finite element analysis. It combines with testing and computer simulation, in order to calculate the static load, do wind vibration research and comfort research.Several useful conclusions are drawn. The main content of this thesis is as follows:firstly based on high-frequency dynamic balance test of ShangDong Hanyu YaYuan super-high residential building, three-dimensional dynamic wind load is studied, and obtains the wind load of the characteristics of different direction and the influence of wind induced wind load on the contrast and analysis. After that, calculate the static equivalent wind load on this basis. In the other hand, by introducing the concept of sensitivity, the change of the static equivalent wind load and top maximum acceleration is calculated while the experimental factor changed. Through the analysis of the sensitivity, the stability of high-frequency dynamic balance test can be seen.Secondly, through wind tunnel pressure test on rigid models wind pressure time-histories data are obtained. And we can infer the method of calculating the wind load time-histories data. Then by using ANSYS, displacement and acceleration responses are calculated.Again, through comparing the results of static analysis and time history analysis of the displacement response,checking out that if the result is fit the code or not.Finally, with the test and software simulation to the top of the acceleration response of this test object wind vibration comfort evaluation is given, and the conclusion can be used to provide useful structure design suggestions.