Analytical Modeling of Seismic Steel Moment Connections Reinforced with Welded Straight Haunch

용접 수평헌치로 보강된 내진 철골 모멘트 접합부의 해석적 모형화

  • 이철호 (경남대학교 공간환경시스템 공학부) ;
  • 윤태호 (창원대학교 건축공학과)
  • Received : 2000.07.27
  • Published : 2000.10.27

Abstract

This paper describes new analytical modeling for steel moment connections with welded straight haunch. Among a variety of new details for seismic steel moment connections proposed after the 1994 Northridge and the 1995 Hyogo-Ken Nanbu earthquake, one viable solution was to strengthen the connection by adding a triangular haunch on the bottom side of the beam. However, a simpler design has been called for because of the increased labor associated with fitting the triangular haunch. Adding a straight haunch is one alternative. But a mathematical model that forms the design basis is not available. A simplified analytical model that considers the force interaction and deformation compatibility between the beam and haunch is developed in this study. The proposed modeling predicted quite reasonably the interaction forces at the beam-haunch interface and the flexural stresses in the beam and haunch flange groove welds.

Acknowledgement

Supported by : 학술진흥재단

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