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Estimation of Shear Strength of RC Shear Connection for the Steel-Concrete Composite Girder (강합성 거더용 철근콘크리트 전단연결체의 전단강도 평가)

  • Shin, Hyun Seop;You, Young Jun;Jeong, Youn Ju;Eom, In Su
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.30 no.3A
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    • pp.229-239
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    • 2010
  • For the purpose of improvement of the load carrying capacity and constructibility of the conventional steel-concrete composite girder through a effective appliance of the construction materials and optimization of the girder section, a new type section of composite girder and RC shear connection were proposed. In this study shear strength of the RC shear connection is estimated, and the characteristics of shear load-slip behaviour is analyzed. Push-out tests on shear specimens and FEM analysis with various design parameters are carried out, and results are analyzed. The results of test and FEM analysis showed that shear strength of RC shear connection is underestimated by the design provisions of the current design code. By regression analysis a empirical equation for the estimation of shear strength of RC shear connection is proposed.

A Study on the Behavior of Wall-Support Joint of Steel Plate-Concrete Structure (SC(강판-콘크리트)구조 브라켓 접합부 거동에 관한 연구)

  • Kim, Woo Bum;Kim, Kang Sik
    • Journal of Korean Society of Steel Construction
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    • v.16 no.3 s.70
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    • pp.377-385
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    • 2004
  • An experimental and analytical study on the behavior of the wall-support joint in SC(steel plate-concrete) structure was performed. Nine full-scale specimens were tested with a horizontal monotonic load, all acting in the same plane, causing a uni-axial moment on the SC structure's wall-support beam joint. The main focus is to examine thenonlinear behavior and ultimate strength of the SC wall-support joint. The effects of parameters, such aslocation of support, thickness of the steel plate, and size of support, were studied. The yield strength and ultimate strength of the plate-concrete wall was defined by examining the load-deflection relationship, showing the tension membrane action.