<?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>0123-3033</journal-id>
<journal-title><![CDATA[Ingeniería y competitividad]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. compet.]]></abbrev-journal-title>
<issn>0123-3033</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería, Universidad del Valle]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-30332024000100002</article-id>
<article-id pub-id-type="doi">10.25100/iyc.v26i1.12779</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Influence of seismic isolation on the seismic design of buildings with reinforced concrete wall structure]]></article-title>
<article-title xml:lang="es"><![CDATA[Influencia del aislamiento sísmico en el diseño sismorresistente de edificios con estructura de muros de concreto reforzado]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Niño-Castaño]]></surname>
<given-names><![CDATA[Jorge A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chalarca]]></surname>
<given-names><![CDATA[Bryan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bedoya-Ruiz]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[Manizales ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University School for Advanced Studies IUSS  ]]></institution>
<addr-line><![CDATA[Pavia ]]></addr-line>
<country>Italia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<volume>26</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-30332024000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-30332024000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-30332024000100002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The use of reinforced concrete walls has become popular in Latin America as a structural system for the construction of residential buildings. However, this system is characterized by a low ductility capacity, compromising its seismic performance during the last strong earthquakes. To improve the seismic performance of reinforced concrete walls, building codes have increased the design requirements such as augmenting the use of boundary elements, larger cross sections and safety factors. These new requirements lead to higher building costs without assuring obtaining higher levels of seismic performance, becoming necessary the implementation of novel technologies that allow the improvement of the seismic performance of this structural system. Seismic isolation allows for reducing the seismic demand on the structure and increasing the seismic performance without incurring larger design values. This study uses three real buildings composed of reinforced concrete walls located in a high seismic region and soil type D, designed based on the Colombian building code. Nonlinear models of these three buildings were generated to evaluate the seismic response under actual ground motions. The three buildings were then redesigned using seismic isolation and the same analysis procedure was carried out to obtain the seismic response of the isolated buildings, comparing the results with those of the fixed base. The results show that the seismically isolated buildings exhibited a higher seismic performance, moving from a life safety performance level of the fixed-base buildings to an immediate occupancy performance level. In addition, the isolated buildings required up to 50% less reinforced steel and up to 100% fewer boundary elements compared to the fixed-base buildings, while keeping the architectural and building advantages of the wall structural system.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En América Latina se ha popularizado el uso de muros de concreto reforzado como sistema estructural para la construcción de edificaciones; sin embargo, este sistema se caracteriza por ser de baja ductilidad por lo cual su desempeño se ha visto comprometido durante diferentes sismos ocurridos en los últi-mos años. Esta investigación toma tres edificios reales con estructuras de muros en concreto reforzado, localizados en zonas de sismicidad alta y en un suelo tipo D, los cuales se diseñan según la normativa colombiana. Adicionalmente, se crean modelos numéricos no lineales para evaluar el comportamiento sísmico de los edificios ante sismos reales. Este mismo procedimiento es repetido para los tres edificios dotándolos con aisladores sísmicos y comparando su desempeño sísmico con el obtenido de los aná-lisis de los edificios de base fija. Los resultados muestran que se mejora el desempeño de la estructura aislada ante la ocurrencia de los sismos pasando de un nivel de desempeño de protección de la vida a uno de ocupación inmediata, mientras se obtiene una reducción de hasta un 50% del acero de refuerzo y de hasta un 100% del uso de elementos de borde comparado con los edificios diseñados con base fija, conservando las ventajas constructivas y arquitectónicas del sistema de muros.1 Universidad Nacional de Colombia, Manizales, Colombia2University School for Advanced Studies IUSS Pavia, Italia.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[reinforced concrete walls]]></kwd>
<kwd lng="en"><![CDATA[seismic isolation]]></kwd>
<kwd lng="en"><![CDATA[seismic performance]]></kwd>
<kwd lng="en"><![CDATA[boundary elements]]></kwd>
<kwd lng="en"><![CDATA[steel reinforcement]]></kwd>
<kwd lng="es"><![CDATA[muros de concreto]]></kwd>
<kwd lng="es"><![CDATA[aislamiento sísmico]]></kwd>
<kwd lng="es"><![CDATA[desempeño sísmico]]></kwd>
<kwd lng="es"><![CDATA[elemen-tos de borde]]></kwd>
<kwd lng="es"><![CDATA[acero de refuer-zo]]></kwd>
</kwd-group>
</article-meta>
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