Ouhai Olympic Center consists of stadium,gymnasium,swimming pool and sport facilities.The main structure of gymnasium adopts reinforced concrete frame structure,and the roof adopts crossover cable-supported reticulated shell structure system,which is the first project of this structural system in the world.In the design,buckling analysis and anti-progressive collapse analysis were carried out for the roof structure,the results show that the overall stability of the structure is good and the anti-progressive collapse ability is excellent,which further proves the rationality of the structural system selection.A special analysis was carried out on the cable force to ensure that the cables will not be broken or exits the tension state under each combination of working conditions,and the design requirements are still met after the stiffness deteriorates.
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