Compressive Stress Distribution of High Tension Bolted Joints

고장력 볼트 이음부의 내부 압축응력 분포

  • 김성훈 (서울산업대학교 건설구조공학과) ;
  • 이승용 (한양대학교 대학원 토목공학과) ;
  • 최준혁 (한양대학교 대학원 토목공학과) ;
  • 장동일 (한양대학교 지구환경건설공학부)
  • Received : 1997.05.01
  • Published : 1997.06.30

Abstract

The high-tension bolted joints are clamped by the axial force which approaches the yielding strength. The introduced axial force is transmitted to the connection members pass through washer. The transferred load in connections is balanced to the compressive stress of plates, axial force in bolts and the external loads. In this mechanism, the compressive stress and slip load we dominated by the effective stiffness of bolted joints and plates. In general the effective stiffness is specified to product to the effective area and elasticity modulus in connections. In this reason, the conic projection formular which is assumed that the axial force in bolts is distributed to the cone shape and that region is related to the elastic deformation mechanism in connections, was proposed. But it conclude what kind of formula is justified. Therefore in this paper, the fatigue tests are performed to the high tension bolted joints and inspected to the phase on the friction face. And using the FEM and numerical method, it is analyzed and approximated to the compressive stress distribution and its region. Moreover, it is estimated to the effective area and to the relation the friction area to the effective compressive distribution region.

Acknowledgement

Supported by : 서울산업대학교

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