From the past, space structure have been widely used as sports arenas, religious facilities. And the demand and research for retractable structure is increasing recently. Therefore, we classify the retractable mechanism which is divided according to the retractable method of structures and survey the present condition of retractable structures built around the world.

• 손수덕(한국기술교육대학교 건축공학과, 연구교수) | Shon, Su Deok
• 이돈우(한국기술교육대학교 창의융합공학협동과정, 박사과정) | Lee, Don Woo
• 이승재(한국기술교육대학교 건축공학과, 교수) | Lee, Seung Jae 교신저자