开合结构(Retractable Structures)是利用了机械与自动化技术的、可以打开和关闭的结构体系。 开合结构的出现是现代化体育事业发展的必然结果。随着社会的发展,人们建造了大量不同跨度的室内体育馆,对于运动员的锻炼和比赛以及观众的观赏来说,室内体育馆不仅能在恶劣的天候环境下保护观众和运动员,而且保证了体育比赛能在预定 Retractable Structures are structural systems that can be opened and closed using mechanical and automation technologies. The opening and closing structure is the inevitable result of the development of modern sports. With the development of society, a large number of indoor gymnasiums have been built with different spans. The indoor gymnasium not only protects the spectators and athletes in the harsh weather conditions, but also ensures the athletic performance Scheduled