Análisis no Lineal de una Junta Experimental de Columna y Vigas de Concreto Armado-columna de Acero para Pórticos

Translated title of the contribution: Nonlinear Analysis of an Experimental Joint of Column and Reinforced Concrete Beams-Steel Column for Porticos

Nelson Andres Lopez Machado, Ronald Ugel, Herrera Indira Reyes González

Research output: Contribution to journalArticle

Abstract

In this research, the nonlinear behavior of a real-scale experimental joint (node) is studied, consisting of three reinforced concrete elements, one column and two beams joined to a structural steel column at the upper level. In the numerical analysis the model of the union was analyzed in the inelastic range, this model was elaborated with the finite element program based on fibers, SeismoStruct to analyze as a function of time, the traction and compression efforts in the confined area and not confined area of the concrete column and in the longitudinal reinforcement steel, as well as verification of the design of the base plate that joins the two columns. The results showed that tensile stresses in the unconfined zone surpassed the concrete breaking point, with cracking occurring just below the lower edge of the beams; in the confined area the traction efforts were much lower, with cracks occurring later than in the non-confined area. The concrete column-steel column joint behaved as a rigid node, so the elastic design was consistent with the calculation methodology of base plates for steel columns.
Translated title of the contributionNonlinear Analysis of an Experimental Joint of Column and Reinforced Concrete Beams-Steel Column for Porticos
Original languageSpanish (Ecuador)
Pages (from-to)35-52
Number of pages18
JournalGaceta Técnica
Volume18
Issue number18
DOIs
StatePublished - 10 Dec 2017

Keywords

  • Base plate
  • Inelastic study
  • Rigid node

CACES Knowledge Areas

  • 237A Construction and civil engineering

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