Single layer free-form structures are being highlighted in the field of architecture due to its attractive shape. In these structures, node connecting system is very important because the node must resist bending and axial stress simultaneously. So the local and global stabilities of entire structure can be determined by the stiffness of node system. In this study, therefore, various types of bending test with axial force were performed. As a result, bending capacity with axial force of a new spherical node for free-form structure could be performed and structural capacities were checked to use in real structure.

 Abstract  1. 서 론  2. FREE NODE 시스템   2.1 FREE NODE 상세   2.2 목표 성능  3. 실험계획   3.1 재료 실험   3.2 변수 설정   3.3 계측 계획  4. 실험 결과   4.1 M-Mo-n_R   4.2 M-Mo-n_R(T50) & M-Mo-n_R(T80)   4.3 M-Mo-n_R(C50) & M-Mo-n_R(C80)  5. 결 론  감사의 글  References

• 오진탁(고려대학교 건축사회환경공학과 석박사통합과정) | Oh, Jin-Tak
• 정광량( 동양구조안전기술 대표, 공학박사) | 정광량
• 김도현( 대우건설 방재연구팀 선임연구원, 공학박사) | 김도현