Analysis And Design Of Wind-resistant For Chongqing Grand Theater

Since the development of the economy and progress of science and technology, more and more complex-shape buildings are coming forth. So according to the load codes, it is difficult to obtain the characteristics of wind load on the building with complexity shape. By means of the combination of wind tunnel test and numerical simulation, wind loads on the complex-shape building, Chongqing Grand Theater are analyzed, which include the following main points:(1) The design of model and the blue print of wind tunnel test are carried on. Aimed at the difficulty on locations of pressure points on the surface of complex shape buildings, the distributions of wind pressure on buildings are estimated by means of numerical simulation before wind tunnel tests, and then it is realized to optimize the locations of pressure points.(2) Based on the software of Fluent6.1, the model is built reasonablely and calculated, its results have a good meet with the experiment data. The practices show that numerical simulation can provide a lot of help during the wind tunnel tests. Numerical simulation not only optimizes the location of pressure points before the experiment, but also distinguishs the data truth or not during the experiment, and its results can be compared with the experiment data after the experiment. So it makes the experiment go on more smoothly and the test data more credible.During numerical simulation, the experiment data can be refered to,so the experience is accumulated.(3) The experiment of measuring wind pressure on the surface of Chongqing Grand Theater is carried out in the boundary layer wind tunnel (BLWT). Based on the experiment data, the characteristics of the wind load distribution on the surface of the building is obtained, which is under the different conditions,such as various wind directions, different terrain.The max(min) wind pressure values of once for 50(100) years are also calculated.(4) In order to make the comparison between the data of the wind tunnel test and the codes more convenient, the formula between the pressure coefficient C pand the shape coefficientμsis deduced in this paper, which takes the mountainous terrain into account.