<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-6835</journal-id>
<journal-title><![CDATA[Revista ALCONPAT]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. ALCONPAT]]></abbrev-journal-title>
<issn>2007-6835</issn>
<publisher>
<publisher-name><![CDATA[Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-68352021000300005</article-id>
<article-id pub-id-type="doi">10.21041/ra.v11i3.548</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Theoretical-experimental behavior of steel fibers as a partial replacement for shear reinforcement in reinforced concrete beams]]></article-title>
<article-title xml:lang="pt"><![CDATA[Comportamento teórico-experimental de fibras de aço em substituição parcial à armadura de cisalhamento em vigas de concreto armado]]></article-title>
<article-title xml:lang="es"><![CDATA[Comportamiento teórico-experimental de fibras de acero como reemplazo parcial del refuerzo a cortante en vigas de concreto reforzado]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Juárez-Alvarado]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Rangel]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Terán-Torres]]></surname>
<given-names><![CDATA[B. T.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdez-Tamez]]></surname>
<given-names><![CDATA[P. L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castruita-Velázquez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Ingeniería Civil ]]></institution>
<addr-line><![CDATA[San Nicolás de los Garza Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>11</volume>
<numero>3</numero>
<fpage>31</fpage>
<lpage>49</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-68352021000300005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-68352021000300005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-68352021000300005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract It is proposed to partially replace the stirrups with steel fibers and thus improve the shear strength of concrete beams. The variables studied were: water/cement ratios (w/c) = 0.55 and 0.35, and fiber volume (Vf) = 0, 0.3, 0.5, 0.7% and 0, 0.2, 0.4, 0.6% respectively, along with the separation of the stirrups. The results showed that the shear strength of the reinforced fiber and stirrups was greater than the strength of the beams reinforced only with stirrups. Experimental data and the strength prediction models comparison showed that the analytical models adequately predict the effect of the w/c ratio, the Vf, and the contribution of longitudinal and transverse steel. Also, the studied models predicted mainly conservative values with respect to the ultimate shear strength.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Propõe-se a substituição parcial dos estribos por fibras de aço para melhorar a resistência ao cisalhamento das vigas. Como variáveis: relação (a/c) = 0,55 e 0,35 com (Vf) = 0, 0,3, 0,5, 0,7% e 0, 0,2, 0,4, 0,6% respectivamente e espaçamento de estribo. Os resultados mostraram que a resistência ao cisalhamento com reforço de estribos e fibras foi maior que a das vigas controle com estribos separados (d/2). A comparação entre os dados experimentais e os modelos de predição de resistência mostrou que o efeito da relação (a/c), (Vf), a contribuição do aço longitudinal e a presença de estribos está adequadamente previsto. Os modelos estudados previram, na maioria dos casos, valores conservadores para a resistência última ao cisalhamento experimental.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se propone sustituir parcialmente estribos por fibras de acero para mejorar la resistencia a cortante de vigas. Las variables estudiadas fueron: la relación agua/cemento (a/c) = 0.55 y 0.35, y el volumen de fibra (Vf) = 0, 0.3, 0.5, 0.7% y 0, 0.2, 0.4, 0.6% respectivamente, y la separación de estribos. Los resultados mostraron que la resistencia a cortante con estribos y fibras, fue mayor que la resistencia de las vigas reforzadas con solo estribos. La comparativa entre los datos experimentales y modelos analíticos de predicción de resistencia, mostró que se predice adecuadamente el efecto de la relación (a/c), el Vf, y la aportación del acero longitudinal y transversal. Además, los modelos estudiados predijeron mayormente valores conservadores para la resistencia ultima experimental a cortante.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Fiber-reinforced concrete]]></kwd>
<kwd lng="en"><![CDATA[beams]]></kwd>
<kwd lng="en"><![CDATA[shear strength]]></kwd>
<kwd lng="en"><![CDATA[analytical model]]></kwd>
<kwd lng="en"><![CDATA[stirrups]]></kwd>
<kwd lng="en"><![CDATA[steel fibers.]]></kwd>
<kwd lng="pt"><![CDATA[concreto reforçado com fibras]]></kwd>
<kwd lng="pt"><![CDATA[vigas]]></kwd>
<kwd lng="pt"><![CDATA[tensão de cisalhamento]]></kwd>
<kwd lng="pt"><![CDATA[modelo analítico]]></kwd>
<kwd lng="pt"><![CDATA[estribos]]></kwd>
<kwd lng="pt"><![CDATA[fibras de aço.]]></kwd>
<kwd lng="es"><![CDATA[concreto fibroreforzado]]></kwd>
<kwd lng="es"><![CDATA[vigas]]></kwd>
<kwd lng="es"><![CDATA[esfuerzo a cortante]]></kwd>
<kwd lng="es"><![CDATA[modelo analítico]]></kwd>
<kwd lng="es"><![CDATA[estribos]]></kwd>
<kwd lng="es"><![CDATA[fibras de acero.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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</ref-list>
</back>
</article>
