Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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An Experimental Study on the Static Load Capacity of T-Type Tension Joints with High Tension Bolt

고장력볼트 T-인장이음의 정적내력에 관한 실험적 연구

  • Lee, Seung Yong (Dept. of Civil Engineering, Korea National University of Transportation) ;
  • Choi, Jun Hyeok (Dept. of Civil Engineering, Bucheon University) ;
  • Kim, Kyong Tae (Dept. of Civil Engineering, Korea National University of Transportation)
  • 이승용 (한국교통대학교, 토목공학과) ;
  • 최준혁 (부천대학교, 토목과) ;
  • 김경태 (한국교통대학교, 토목공학과)
  • Received : 2014.07.29
  • Accepted : 2014.11.17
  • Published : 2015.02.27
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Abstract

The tension type joint is a mechanically very efficient connection method, as it directly uses the load capacity of base metal or high tension bolt, the reduction of the number of drilling hole and fastening and the fatigue resistance. It is applied to the joint of girder and cross beam, horizontal joints of towers, beam to column joints, the secondary member joints of deck floor ends, and brackets. In this paper, static load tests for the T-type tension joint were conducted to investigate the structural behavior of the joint. The parameters were bolt diameter, flange thickness, and the reduction of clamping force of the joint. The failure modes and load capacity of joints and the effects of flange thickness, bolt diameter and clamping force were investigated.

인장이음은 고장력 볼트의 체결력과 모재 그리고 고장력 볼트의 내력을 직접적으로 활용하고, 볼트구멍의 가공수나 체결개소의 감소, 피로저항성 등에 있어 유리하며 때문에 역학적으로 매우 효율적인 연결이다. 이러한 인장이음은 교량의 거더와 가로보의 이음, 주탑의 수평이음, 보-기둥 연결부, 바닥판 단부 2차부재 연결부, 브라켓 등에 적용될 수 있다. 본 연구에서는 인장이음의 역학적 거동을 파악하기 위해서 T-인장이음에 대한 정적실험을 수행하였다. 시험변수는 고장력 볼트의 직경, 플렌지 두께 및 체결력 감소이며, 인장이음의 파괴양상과 내력, 플랜지 두께와 고장력 볼트의 직경의 영향, 체결력의 영향에 대해 분석하였다.

Keywords

References

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