Eccentric punching strength of rc slab-column connections: A parametric numerical analysis based on the lisbon setup

Emanuele Teoni, Lorenzo Secci, Massimo Lapi, António Pinho Ramos, Maurizio Orlando

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In the last years, several experimental campaigns have been performed to investigate the punching strength of slab-column connections subjected to combined vertical and horizontal loading. The knowledge about this topic is far from being considered comprehensive due to the difficulties to represent the actual boundary condition of the slab. The innovative setup developed at the NOVA School of Science &Technology in Lisbon, the so-called Lisbon setup, aims at reproducing the behaviour of slab-column connections in continuous flat slabs. In the present paper the Lisbon setup has been assessed through a nonlinear finite element model by using ABAQUS. Firstly, the numerical model has been calibrated on experimental tests performed on the Lisbon setup. Finally, the eccentric punching strength of slab-column connections have been investigated by means a parametric analysis changing the concrete compressive strength (fc), longitudinal reinforcement ratio (ρ), column size (c), effective depth (d) and gravity shear ratio (GSR).

Original languageEnglish
Title of host publicationConcrete Structures
Subtitle of host publicationNew Trends for Eco-Efficiency and Performance - Proceedings of the fib Symposium 2021
EditorsE. Júlio, J. Valença, A. S. Louro
Publisherfib. The International Federation for Structural Concrete
Pages1640-1647
Number of pages8
ISBN (Electronic)978-294064308-0
Publication statusPublished - 2021
Event2021 fib Symposium of Concrete Structures: New Trends for Eco-Efficiency and Performance - Virtual, Lisbon, Portugal
Duration: 14 Jun 202116 Jun 2021

Publication series

NameFib Symposium
Publisherfib. The International Federation for Structural Concrete
Volume2021
ISSN (Print)2617-4820

Conference

Conference2021 fib Symposium of Concrete Structures: New Trends for Eco-Efficiency and Performance
Country/TerritoryPortugal
CityVirtual, Lisbon
Period14/06/2116/06/21

Keywords

  • Eccentric loading
  • Flat slabs
  • Nonlinear FE modeling
  • Punching

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