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Effect of Lateral Confinement on Strength of Concrete

Author Affiliations

  • 1Structural Engineering, Jabalpur Engineering College, Jabalpur, MP, INDIA
  • 2Department of Civil Engineering, Jabalpur Engineering College, Jabalpur, MP, INDIA
  • 3Department of Civil Engineering, Jabalpur Engineering College, Jabalpur, MP, INDIA

Res. J. Engineering Sci., Volume 1, Issue (1), Pages 40-44, July,26 (2012)

Abstract

In columns or compression members, lateral reinforcement in the form of hoops, cross-ties, or spirals play an important role in safeguarding the columns, especially when they are subjected to strong earthquakes or accidental lateral loads. They are required in any column-whether they are parts of a moment resistant frame or the gravity system in order for them to deform laterally and provide the required ductility. This paper deals with studies on the compressive strength of concrete specimens having confinement in various quantities. Studies on reinforced cement concrete specimens were used to understand the influence of the lateral confinement on the compressive strength of concrete. Cylindrical and square test specimens having height to diameter (or width) ratio as 2 were used for the study. The specimen was prepared with different spacing of hoops and having seismic and non-seismic hooks. This paper deals with the variation of peak strength with volumetric ratio of transverse steel to confined concrete core.

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