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Structure Behavior Evaluation of Beams composited with Steel and Reinforced Concrete  

Kim, In Seok (호남대학교 토목공학과)
Kim, Hak Soo (호남대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.20, no.5, 2008 , pp. 665-673 More about this Journal
Abstract
The composite structures of steel and reinforced concrete, which have been widely used in large-scale concrete structures, werestudied to investigate the cause of unexpected cracks and to verify the composite actions between the two materials. Vertical stiffeners between flanges, studs and dowel bars, stirrups, and concrete strength were chosen as experimental variables in afour-point loading test. The results showed that the vertical stiffener prevented not only the local web buckling, but also bond failures between steel and concrete. It increased the flexural resistance (fracture loads) due to the composite action of two materials, compared withthose of any experimental variable. However, the composite behavior of steel reinforced concrete beam was not affected seriously by additional studs, dowel bars, stirrups, and concrete strength.
Keywords
composite behavior; vertical stiffener; stud; dowel bar; stirrup;
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