An Experimental Study on the Ultimate Strength and Deformation Capacity of Composite Beams with Eccentric Web Openings

편심유공합성보의 종국내력 및 변형능력에 관한 실험적 연구

  • 최산호 (호원대학교 건축공학과) ;
  • 서성연 (한라대학교 건축토목공학부)
  • Received : 1999.08.13
  • Published : 2000.10.27

Abstract

Web openings of large beams provide space for wiring, piping, and duct work to provide for proper drainage, pipes and duct must be slightly sloped with the attendant result that all web openings can not be centered on the centroidal axes of the beams. Test specimens are made for opening-depth to beam-depth ratio of 0.5 and for eccentricities of the opening center line of 10% from middepth of the beam because of the proximity of the opening edge to the flange. In this paper, available test results and theories relating to the strength of composite beams having eccentric rectangular openings are surveyed and experiments were carried out to examine the structural behaviors. In all the tests in this paper good agreement is demonstrated with maximum loads measured in tests, and observed failure modes Furthermore, compared with analytical values and experimental values of interaction diagram between moment and shear capacity were safed as it is scattered with outer part of the analytical values.

References

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