Middle size of membrane retractable roof is under 25m span which consists of various moving systems. Sliding carriage is the system that leads the membrane to parking place, transferring the load from the membrane to structural cable. When membrane moves roof, thus, structural behavior of sliding carriage, which may contain various shapes with friction coefficients, should be investigated by vertical load as well as horizontal load. Nummerical simulation of sliding carriage prototypes, in this research, were performed by incrementation of vertical load and horizontal load as well. Consequently, this paper evaluated proper shapes of inner holder of Sliding carriage and evaluated the effective contact area of inner hold.

Abstract
1. 서론
2. 트롤리 프로토타입의 디테일
3. 수치해석 개요
4. 수치해석 결과
    4.1 Inner Holder의 다양한 두께를 고려한 결과
    4.2 Inner Holder의 다양한 마찰면을 고려한 결과
5. 결론
References

• 황경주(서울시립대학교 건축학부 교수) | Hwang, Kyung-Ju (School of Arch. University of Seoul)