Punching shear behaviour of edge column connections in continuous flat slabs

Jürgen Einpaul, Robert L. Vollum, Antonio Pinho Ramos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper deals with the behaviour of reinforced concrete flat slabs around their connections to edge columns. Using a non-linear finite element model with shell elements and simple assumptions regarding flexural and shear response, this study investigates the magnitude of unbalanced moments transferred between the slab and the column as well as the distribution of shear forces in the slab around the connection. The influence of distribution of reinforcement between hogging (around the columns) and sagging (in the mid-span) areas as well as in the directions parallel and perpendicular to the slab edge are analysed. The behaviour of continuous slabs is compared to that of typical test specimens. It is shown that the distribution of shear stresses in test specimens may be significantly less uniform which can lead to lower punching capacities in the tests than in actual continuous slabs.

Original languageEnglish
Title of host publicationIABSE Conference, Vancouver 2017
Subtitle of host publicationEngineering the Future - Report
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Pages1758-1765
Number of pages8
ISBN (Electronic)978-385748153-6
Publication statusPublished - 1 Jan 2017
Event39th IABSE Symposium in Vancouver 2017: Engineering the Future - Vancouver, Canada
Duration: 21 Sep 201723 Sep 2017

Conference

Conference39th IABSE Symposium in Vancouver 2017: Engineering the Future
CountryCanada
CityVancouver
Period21/09/1723/09/17

Keywords

  • Edge columns
  • Non-axisymmetric conditions
  • Non-linear finite element analysis
  • Punching shear
  • Reinforced concrete
  • Slabs

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  • Cite this

    Einpaul, J., Vollum, R. L., & Ramos, A. P. (2017). Punching shear behaviour of edge column connections in continuous flat slabs. In IABSE Conference, Vancouver 2017: Engineering the Future - Report (pp. 1758-1765). International Association for Bridge and Structural Engineering (IABSE).