ASPECTS OF FINITE ELEMENT MODELING OF PUNCHING SHEAR BEHAVIOR OF REINFORCED CONCRETE FLAT SLABS

  • RAFAEL ANDRES SANABRIA DIAZ Faculdade de Engenharia Civil, Arquitetura e Urbanismo, Universidade Estadual de Campinas - UNICAMP, Campinas, São Paulo, Brasil
  • LEONARDO HENRIQUE BORGES DE OLIVEIRA Faculdade de Engenharia Civil, Arquitetura e Urbanismo, Universidade Estadual de Campinas - UNICAMP, Campinas, São Paulo, Brasil / Universidade Federal Rural do Semi-Árido – UFERSA, Pau dos Ferros, Rio Grande do Norte, Brasil
  • LEANDRO MOUTA TRAUTWEIN Faculdade de Engenharia Civil, Arquitetura e Urbanismo, Universidade Estadual de Campinas - UNICAMP, Campinas, São Paulo, Brasil
  • LUIZ CARLOS DE ALMEIDA Faculdade de Engenharia Civil, Arquitetura e Urbanismo, Universidade Estadual de Campinas - UNICAMP, Campinas, São Paulo, Brasil
  • ANTONIO CARLOS DOS SANTOS Faculdade de Engenharia Civil, Universidade Federal de Uberlândia – UFU, Uberlândia, Minas Gerais, Brasil

Abstract

A SERIES OF NON-LINEAR FE ANALYSES WAS CONDUCTED IN THIS PAPER TO MODEL THE PUNCHING SHEAR FAILURE OF RC FLAT SLABS. THE ANALYSIS WERE CARRIED OUT IN THE SOFTWARE DIANA USING TRIDIMENSIONAL CONTINUUM ELEMENTS. THESE ANALYSES INVOLVES THE TEST OF DIFFERENT MODELING CHOICES IN ORDER TO EVALUATE ITS INFLUENCES ON PUNCHING SHEAR FAILURE MODELING. THE PARAMETERS EXAMINED ARE THE SIZE OF THE FE MESH, THE CONVERGENCE METHODS AND THE CONCRETE MATERIAL INPUT PARAMETERS. THESE PARAMETERS WERE INVESTIGATED BY COMPARING THE RESULTS OF LOAD CARRYING CAPACITY, LOAD-DEFLECTION RESPONSE AND CRACK PATTERNS FROM THE FE ANALYSIS WITH A RELIABLE EXPERIMENTAL TEST. FROM THE RESULTS OBTAINED, IT COULD BE CONCLUDED THAT THE NUMERICAL MODEL WAS ABLE TO REPRODUCE ACCURATELY THE BEHAVIOR OF THE TESTED SLAB AND CAPTURE THE PUNCHING SHEAR FAILURE.

Published
2018-08-21
Section
Articles