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볼트이음방식의 블록전단파괴에 미치는 영향에 대한 실험적 연구

An Experimental Study on the Effects of Bolted Connection Type on the Block Shear Failure

  • 이진옥 (충남대학교 토목공학과) ;
  • 박경현 (충남대학교 토목공학과) ;
  • 문지호 (고려대학교 건축사회환경공학부) ;
  • 이학은 (고려대학교 건축사회환경공학부) ;
  • 임남형 (충남대학교 토목공학과)
  • Lee, Chin-Ok (Department of Civil Engineering, Chungnam National University) ;
  • Park, Gyung-Hyeon (Department of Civil Engineering, Chungnam National University) ;
  • Moon, Jiho (School of Civil, Environmental & Architectural Engineering, Korea University) ;
  • Lee, Hak-Eun (School of Civil, Environmental & Architectural Engineering, Korea University) ;
  • Lim, Nam-Hyoung (Department of Civil Engineering, Chungnam National University)
  • 투고 : 2012.10.15
  • 심사 : 2012.11.08
  • 발행 : 2012.11.30

초록

블록전단파괴는 인장부재의 한계상태에 해당하는 것으로 강구조물의 인장부재 또는 연결부 설계 시 주의를 요한다. 많은 연구 결과와 설계기준에서는 블록전단파괴에 대한 볼트 이음 방식의 영향을 고려하지 않고 있다. 본 연구에서는 볼트 이음 방식(지압이음과 마찰이음)이 블록전단파괴의 파괴모드와 파괴강도에 미치는 영향을 분석하고자 인장실험을 실시하였다. 실험결과의 분석으로부터 설계기준, 지압이음, 마찰이음에 따른 파괴모드의 차이를 제시하였으며 마찰이음에서 발생되는 마찰력으로 인한 블록전단파괴강도의 변화를 고찰하였다.

Block shear failure is one of limit states, and demands great caution in designing the tension member or connection joint of steel structures. From many studies and design specification, it is shown that the effect of the bolted connection type on the block shear failure was not considered. In order to investigate the effect of the bolted connection type(bearing type connection and slip critical connection) on the mode/strength of the block shear failure, tensile experiment is conducted in this study. Differences about the failure mode according to the design specification, bearing type connection, and slip critical connection are proposed from the analysis of test results. The variation of the block shear failure strength due to the frictional force in the slip critical connection is also investigated.

키워드

참고문헌

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