Experimental Study On The Wind Tunnel In The Stadium Of Mount Huoshan County

With the development of human sports,in order to meet the needs of citizens' fitness,a lot of stadiums are built in all countries,and most of the gymnasiums belong to large and complex large span roof cantilever structures,and the construction of this type of building is influenced by the wind pressure.The wind test and wind load test are not suitable for the construction of the gymnasium.Therefore,it is necessary to conduct scientific research on wind tunnel tests of long-span roof structures.In this paper,the wind tunnel test on the stadium in Mount Holyoke county is based on the construction of the stadium.The purpose of the test is to ensure the safety,economy and rationality of the structure design of the stadium.In order to ensure the test results can be applied to the original structure,it is necessary to simulate the flow field in the atmospheric boundary layer according to the similar principle.Model tests were carried out in the wind tunnel to measure the wind pressure,shape coefficient and wind load resistance of the building surface.The main contents are as follows:1)through the reading of a large number of relevant literature and information,we can understand the development and research status of the wind tunnel test research at home and abroad at home and abroad,and make a good background for the analysis of this article.2)through reading a lot of wind tunnel test books,we find the basic principle of wind pressure distribution and control of the hanging roof,and find the theoretical support for the analysis and research of this paper.3)through the research work on the wind tunnel test of Mount Holyoke County in Beijing wind tunnel test institute,the measured data of wind pressure in each point of the wind tunnel are collected,and the data are analyzed and arranged to provide the measured data for the wind pressure control of the cantilever roof.4)through the analysis of the wind velocity profile of the test wind tunnel and the distribution of the turbulence in the test process,the results are in good agreement with the numerical B geomorphic effects which are required by the relevant laws and regulations,and can ensure that the test results are provided for the successful completion of the test.The correct wind pressure value.5)the numerical software simulation of the wind force of the stadium roofstructure under the premise of the non interference of the building is carried out by numerical software.A specific software computing platform is selected,and a certain data is obtained by building a rigid model to carry out the wind tunnel test,and the structure of the cantilever roof of this stadium is set up by the number of data.Wind pressure model under different wind direction angles.In addition,the wind tunnel scientific test and software simulation data processing scheme are also listed,and the wind load coefficient of the enclosure structure and the main structure of the Mount Holyoke County Stadium is obtained.6)for the open structure such as the stadium,the combined force of wind pressure should be used as the design value of the wind load,and the wind direction has a great influence on the wind load on the roof.Under the wind direction of different positions of the stadium,the variation of incoming wind is not the same as that of vortex shedding.