Structural Lectotype And Construction Simulation Analysis Of Urumqi Speed Skating Hall

With the rise of China’s ice and snow sports,the competitions for holding winter sports events have gradually increased,and the corresponding venues for competitions have also been greatly promoted.The 13 th National Winter Games was held in Urumqi,Xinjiang,and an ice sports center was built for this purpose.The Ice Sports Center-Speed Skating Hall is one of the venues for the 13 th National Winter Games.The roof projections are elliptical in shape.The buildings located in the Urumqi area where seismic category is high and snow load is heavy,which puts high demands on design and construction.Based on the roof structure of the Ice Sports Center-Speed Skating Hall project,the research contents and conclusions are as follows:1.The designed types of the speed skating roof structure is selected.According to the relevant norms and combined with the design experience,the structural load control and structural design control index of the speed skating pavilion are proposed.Under the premise of satisfying the building function,by comparing the mechanical characteristics of different structural systems,the advantages and disadvantages of economic benefits,the speed skating pavilion several feasible structural solutions in the roof design are compared and the tension-string truss structure is obtained to be an optimal roof structure system.2.Research on wind resistance performance of speed skating roof structure.On the basis of the wind tunnel test results,the wind-resistant research of roof structure is carried out,including wind-induced response analysis of the structure under the most unfavorable wind direction angle.Finally,the wind-induced vibration coefficient and the equivalent wind load are recommended.3.Research on seismic performance of speed skating roof structure.According to the structural model selected by the structural scheme,the seismic performance of the roof structure is studied.The response spectrum method is used to analyze the seismic behavior under multiple earthquakes.The elastoplastic time history analysis method is used to analyze the elastoplastic deformation of the structure under rare earthquakes.The selected structural scheme meets the seismic requirements.4.Simulation analysis of the construction plan of the speed skating roof structure.According to the proposed construction scheme,the hoisting and tension construction process of the project is simulated,and the stiffness and strength,cable force and structural displacement of the hoisting members are analyzed.Then,the feasibility of the simulated roof construction scheme is analyzed,and a reasonable construction scheme is obtained.