Materials and Structures

, Volume 48, Issue 8, pp 2597–2612 | Cite as

Influence of the longitudinal reinforcement on the shear strength of one-way concrete slabs

  • Mikel Gurutzeaga
  • Eva Oller
  • Carlos Ribas
  • Antoni Cladera
  • Antonio Marí
Original Article

Abstract

The shear strength of one-way slabs is studied in this paper via an experimental program performed by the authors and the analysis of a shear test database. The experimental program, in which six slabs and three beams divided into two series were tested, was developed to study the influence of the slab width, the longitudinal reinforcement spacing and the bottom transverse reinforcement on the shear response of one-way slabs. The results showed that the width and the bottom transverse reinforcement do not significantly affect the shear response of the slab. The shear failure surface depends on the longitudinal reinforcement spacing because a three-dimensional resisting mechanism formed as a result of large bar spacing. A database of 79 tests on slabs was analysed to study in depth the influence of these parameters on the shear strength of one-way slabs. Finally, different shear procedures were applied to the database to evaluate their reliability to predict the shear strength.

Keywords

Reinforced concrete Slab Shear test Shear strength Longitudinal reinforcement spacing 

Notes

Acknowledgments

This work was supported by the Spanish Ministry of Science and Technology (MAT2002-00615, BIA2007-60197, and BIA2009-11764).

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Copyright information

© RILEM 2014

Authors and Affiliations

  • Mikel Gurutzeaga
    • 1
  • Eva Oller
    • 2
  • Carlos Ribas
    • 3
  • Antoni Cladera
    • 3
  • Antonio Marí
    • 2
  1. 1.LKS Ingeniería S.CoopArrasate-MondragónSpain
  2. 2.Department of Construction EngineeringETSECCPB - Technical University of Catalonia (UPC)BarcelonaSpain
  3. 3.Department of PhysicsUniversity of the Balearic Islands (UIB)PalmaSpain

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