개선된 엑세스 홀 형상을 갖는 WUF-W접합부의 실험 을 통한 내진성능평가Experimental Evalutation of the Seismic Performance of WUF-W Moment Connections with a Modified Access Hole
- Other Titles
- Experimental Evalutation of the Seismic Performance of WUF-W Moment Connections with a Modified Access Hole
- Authors
- 한상환; 정진; 문기훈; 김진원
- Issue Date
- Dec-2012
- Publisher
- 한국지진공학회
- Keywords
- Steel Moment Frame; Connections; Cyclic Test; Plastic Rotation; Weld Access hole
- Citation
- 한국지진공학회논문집, v.16, no.6, pp.21 - 28
- Indexed
- KCI
- Journal Title
- 한국지진공학회논문집
- Volume
- 16
- Number
- 6
- Start Page
- 21
- End Page
- 28
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163961
- DOI
- 10.5000/EESK.2012.16.6.021
- ISSN
- 1226-525X
- Abstract
- Welded Unreinforced Flange-Welded Web (WUF-W) connection is one of Special Moment Frame (SMF) specified in ANSI/AISC-358. From the experimental test of WUF-W connection specimens conducted by the previous study, fracture occurred in the beam flange before achieving total inter-story drift angle of 0.04radian required for Special Moment Frames (SMF) system even though the specimens satisfied the design and detailing requirement specified in ANSI/AISC-358. These results are estimated as problem of the access hole geometry. In this study, a full-scale WUF-W connection specimen was made with a modified access hole geometry, and tested with the same test setting and loading as the previous test. From test results, the deformation capacity of the tested WUF-W connection specimen exceeded 4%, which is required for connections in SMF system. Comparing with the WUF-W specimens of the previous study, the strain demand of the beam flange in the tested specimen was decreased and energy dissipation capacity of the specimen was improved.
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