The basic principle of composite beams is to take advantage of the strength of steel and concrete in tension and compression respectively, connected with shear connectors, resulting in high strength-to-weight ratios. These steel–concrete composite (SCC) beams are also used for the continuous span. When these beams are subjected to negative or hogging bending, cracks are developed in concrete due to tension and the majority of the bending is resisted by steel. The analysis and design of the same is still a complex phenomenon which mandates experimental work to evaluate the design capacity. The aim of this paper is to study the development of the procedures to design the beams under hogging bending and the influence of research in the development of the code provisions. Comparisons of the design methods for the SCC beams with different codes IS:11384, Eurocode-4, AISC:360-10 and Australian Standard: 2327 are presented in this paper.

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Behaviour of Steel–Concrete Composite Beams Under Hogging Bending

  • Meera,
  • S. Arul Jayachandran

摘要

The basic principle of composite beams is to take advantage of the strength of steel and concrete in tension and compression respectively, connected with shear connectors, resulting in high strength-to-weight ratios. These steel–concrete composite (SCC) beams are also used for the continuous span. When these beams are subjected to negative or hogging bending, cracks are developed in concrete due to tension and the majority of the bending is resisted by steel. The analysis and design of the same is still a complex phenomenon which mandates experimental work to evaluate the design capacity. The aim of this paper is to study the development of the procedures to design the beams under hogging bending and the influence of research in the development of the code provisions. Comparisons of the design methods for the SCC beams with different codes IS:11384, Eurocode-4, AISC:360-10 and Australian Standard: 2327 are presented in this paper.