폭 1m 이상 합성메가기둥 기둥-보 T형 스티프너 접합부 형상 개발 및 내력식 제안

서지정보

ㆍ발행기관 : 한국복합신소재구조학회 ㆍ수록지정보 : 복합신소재구조학회 논문집 / 9권 / 1호
ㆍ저자명 : 이재현, 김부규, 김선희, 염경수, 최성모

목차

1. 서 론
1.1 연구배경 및 목적
2. 내다이어프램 접합부 형식
2.1 T형 스티프너 상세
3. 합성메가기둥 접합부 내력식 제안
3.1 내력식 제안을 위한 제한 사항
3.2 T형 스티프너 항복내력식
3.3 콘크리트 Cone failure 내력식
4. T형 스티프너 항복내력식 검증을 위한유한요소해석
4.1 유한요소해석 개요
4.2 유한요소해석 결과
4.3 분석 및 고찰
5. 콘크리트와 T형 스티프너 거동 확인을위한 기둥-보 접합부 인장실험
5.1 실험계획
5.2 실험결과
5.3 분석 및 고찰
6. 결 론
REFERENCES

영어 초록

As buildings are becoming larger, demand for mega-sized composite columns (over 1-meter diameter) is increased. We have developed and commercialized welded built-up CFT column (ACT Column I) since 2005 which are structurally stable and economical using cold-formed steel with rib. However, there has a limit in size of cross section (618˟618mm) by a fabrication facilities. And due to characteristics of closed cross section, there has a limit to construction of connection of moment frame. Composite mega column (ACT Column II) has same concept of forming closed cross section. But in order to enlarge cross sectional size, thick plate is inserted between cold-formed steels. Since composite mega column can control thickness and width of thick plate, steel or composite beams can be directly attached to the connection. In this study, we propose strength formula of composite mega column to beam connections with T-shaped stiffener as internal diaphragm and verified through finite element analysis and simple tensile experiment.

참고 자료

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