In this study, a steel-concrete composite slim floor system with variable steel cross-sections was proposed to efficiently use the structural member. An experimental study was conducted with hollow-core and shear connectors as key variables to identify the structural performance of flexure and shear. The specimens showed structural performances under negative moment and shear force higher than the nominal strengths, but lower positive moment strength than the nominal strength since the bond capacity between steel and concrete was not sufficient to have full composite behavior. In particular, in the case of a member in which the shear connector was not placed, the loss of bond between the steel and the concrete led to a drastic decrease in performance. Therefore, it is suggested that sufficient horizontal shear capacity between two different materials should be guaranteed to have sufficient structural performance of the steel-concrete composite slim floor system.
한국어
이 연구에서는 단면을 효율적으로 구성하기 위해서 변단면을 갖는 강-콘크리트 합성 슬림플로어 시스템 을 제시하였으며, 이에 대한 구조적 성능을 실험적으로 규명하기 위해 중공과 전단연결재의 유무를 주요 변수로 휨 및 전단 실험을 수행하였다. 실험체들의 부모멘트와 전단성능은 공칭강도를 상회하는 것으로 나타났으나, 매립 된 철골과 콘크리트 사이의 부착성능이 완전합성단면으로 거동하기에 충분하지 않았기 때문에 공칭강도보다 낮은 정모멘트 성능을 나타내었다. 특히, 전단연결재가 배치되지 않은 부재의 경우, 철골과 콘크리트 사이의 부착이 상 실됨에 따라 급격한 성능 저하를 나타내었다. 따라서, 강-콘크리트 합성 슬림플로어의 충분한 구조성능을 확보하 기 위해서는 이질재료 간의 충분한 수평전단성능이 보장되어야 할 것으로 판단된다.
Ever since next generation convergence technology became one of the most important industries in the nation, computing professionals have encountered a growing number of challenges. Along with scholars and colleagues in related fields, they have gathered in avariety of forums and meetings over the last few decades to share their knowledge, experiences and the outcome of their research. These exchanges have led to the founding of the International Next-generation Convergence technology (INCA) on December 1, 2015. INCA was registered as an incorporated association under the Ministry of Information and Communications. The main purpose of the organization is to improve our society by achieving the highest capability possible in next generation convergence technology.
간행물
간행물명
차세대융합기술학회논문지 [The Journal of Next-generation Convergence Technology Association]