<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662020000100124</article-id>
<article-id pub-id-type="doi">10.15174/au.2020.2465</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Modelo optimizado para cabezales rectangulares apoyados sobre un grupo de pilotes: Parte 1) Superficie óptima]]></article-title>
<article-title xml:lang="en"><![CDATA[An optimized model for rectangular pile caps supported on a group of piles: Part 1) Optimum surface]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Farias Montemayor]]></surname>
<given-names><![CDATA[Oscar Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luévanos Rojas]]></surname>
<given-names><![CDATA[Arnulfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Chavarría]]></surname>
<given-names><![CDATA[Sandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina Elizondo]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Coahuila Instituto de Investigaciones Multidisciplinarias ]]></institution>
<addr-line><![CDATA[Torreón Coahuila]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>30</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662020000100124&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662020000100124&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662020000100124&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este documento muestra un modelo optimizado para cabezales o zapatas rectangulares apoyadas sobre un grupo de pilotes, con el fin de obtener el área de la superficie mínima en planta que soporta una carga axial y dos momentos en dirección del eje X y Y debido a una columna. Este modelo asume que los cabezales son perfectamente rígidos y los pilotes están articulados en la unión de los cabezales con los pilotes y, por lo tanto, los pilotes transmiten solamente carga vertical. La metodología normalmente utilizada para obtener el área de la superficie en planta de los cabezales se propone de acuerdo con la distribución de los pilotes, tomando en cuenta las especificaciones marcadas por los códigos de construcción. También, cinco tipos de cabezales apoyadas sobre un grupo formado por dos, tres, cuatro, cinco y seis pilotes se muestran para demostrar la exactitud del modelo presentado en este documento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This paper shows an optimized model for rectangular pile caps, or footings, supported on a group of piles to obtain the minimum surface area in plant, supporting an axial load and two moments in the direction of the X and Y axis due to a column. This model assumes that the caps are perfectly rigid, and the piles are articulated at the junction of the caps with the piles; therefore, the piles transmit only vertical load. The methodology normally used to obtain the surface area of the caps is proposed in accordance to the distribution of the piles, taking the specifications set by the building codes into account. Also, five types of caps supported on a group formed by two, three, four, five and six piles are shown to demonstrate the accuracy of the model presented.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Modelo optimizado]]></kwd>
<kwd lng="es"><![CDATA[cabezales o zapatas rectangulares]]></kwd>
<kwd lng="es"><![CDATA[superficie mínima]]></kwd>
<kwd lng="es"><![CDATA[grupo de pilotes]]></kwd>
<kwd lng="en"><![CDATA[Optimized model]]></kwd>
<kwd lng="en"><![CDATA[rectangular pile caps or footings]]></kwd>
<kwd lng="en"><![CDATA[minimum surface]]></kwd>
<kwd lng="en"><![CDATA[group of piles]]></kwd>
</kwd-group>
</article-meta>
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