Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics

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 inela...

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Hoofdauteurs:	López, Nelson, Ugel, Ronald, Herrera, Reyes Indira
Formaat:	Online
Taal:	spa
Gepubliceerd in:	Universidad Centroccidental Lisandro Alvarado - Decanato de Ingeniería Civil 2017
Online toegang:	https://revistas.uclave.org/index.php/gt/article/view/299
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id	oai:ojs2.revistas.uclave.org:article-299
record_format	ojs
spelling	oai:ojs2.revistas.uclave.org:article-2992018-11-26T20:29:47Z Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics Análisis no lineal de una junta experimental de columna y vigas de concreto armado-columna de acero para pórticos López, Nelson Ugel, Ronald Herrera, Reyes Indira nodo rígido estudio inelástico placa base rigid node inelastic study base plate 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. En esta investigación se estudia el comportamiento no lineal de una junta (nodo) experimental a escala real, conformada por tres elementos de concreto reforzado, 1 columna y 2 vigas unidos a una columna de acero estructural en el nivel superior. En el análisis numérico el modelo de la unión fue analizado en el rango inelástico, dicho modelo se elaboró con el programa de elementos finitos basado en fibras SeismoStruct, para analizar en función del tiempo, los esfuerzos de tracción y compresión en las zona confinadas y no confinadas de la columna de concreto y en el acero de refuerzo longitudinal, así como también la verificación del diseño de la placa base que une a las dos columnas. Los resultados mostraron que los esfuerzos de tracción en la zona no confinada sobrepasaron el límite de rotura del concreto, presentándose agrietamiento justo debajo del borde inferior de las vigas; en la zona confinada los esfuerzos de tracción fueron mucho menores, presentándose agrietamientos más tardíos que en la zona no confinada. La junta columna de concreto-columna de acero se comportó como nodo rígido, por lo que el diseño elástico estuvo acorde a la metodología de cálculo de placas base para columnas de acero. Universidad Centroccidental Lisandro Alvarado - Decanato de Ingeniería Civil 2017-12-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo científico de investigación original application/pdf https://revistas.uclave.org/index.php/gt/article/view/299 10.13140/RG.2.2.20873.75365 Gaceta Técnica; Vol. 18 No. 1 (2017): July-December; 35-52 Gaceta Técnica; Vol. 18 Núm. 1 (2017): Julio-Diciembre; 35-52 Gaceta Técnica; v. 18 n. 1 (2017): July-December; 35-52 2477-9539 spa https://revistas.uclave.org/index.php/gt/article/view/299/156
institution	Universidad Centroccidental Lisandro Alvarado
collection	OJS
language	spa
format	Online
author	López, Nelson Ugel, Ronald Herrera, Reyes Indira
spellingShingle	López, Nelson Ugel, Ronald Herrera, Reyes Indira Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics
author_facet	López, Nelson Ugel, Ronald Herrera, Reyes Indira
author_sort	López, Nelson
title	Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics
title_short	Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics
title_full	Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics
title_fullStr	Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics
title_full_unstemmed	Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics
title_sort	non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics
description	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.
publisher	Universidad Centroccidental Lisandro Alvarado - Decanato de Ingeniería Civil
publishDate	2017
url	https://revistas.uclave.org/index.php/gt/article/view/299
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Non-linear analysis of an experimental joint of column and beams of armed concrete-steel column for portics

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