The Structural Behavior of the Frames with Semi-Rigid Connections Using Reformed T-stubs

개량 T-stub를 이용한 반강접 골조의 거동

The objective of this study is to investigate the structural behavior of the beam to column connection with reformed T-stubs and to ascertain the application of semi-rigid connection with reformed T-stubs to middle high rise buildings. The tests of steel frame using semi-rigid connections with reformed T-stub and existing T-stub were performed under cyclic loading condition. Finite element analysis was also carried out and the results of FEM were compared with results of tests. The thickness of reformed T-stub and the distance of bolt were used for parameters in the analysis. The structural behaviors of reformed T-stub were understood qualitatively and the possibility of application of semi-rigid connections with reformed T-stubs was ascertained.

본 연구의 목적은 개량 T-stub를 이용한 1층 1스팬 골조의 구조적 거동을 파악하고 중층규모의 건축물에 대하여 개량 T-stub의 적용가능성을 확인하기 위한 것이다. 연구방법으로 개량 T-stub 및 기존 T-stub를 이용한 반강접 골조의 반복가력실험을 하였으며 개량 T-stub의 플랜지 두께와 볼트중심거리를 변수로 하여 유한요소해석을 수행하여 그 결과를 실험결과와 비교하였다. 본 연구의 실험 및 해석결과로부터 개량 T-stub의 거동을 정성적으로 파악하고 반강접합부로서의 적용가능성을 확인하였다.