<?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>0185-092X</journal-id>
<journal-title><![CDATA[Ingeniería sísmica]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. sísm]]></abbrev-journal-title>
<issn>0185-092X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Ingeniería Sísmica A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-092X2022000200108</article-id>
<article-id pub-id-type="doi">10.18867/ris.108.598</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cambios en las propiedades dinámicas de un edificio experimental mediante el análisis de vibración ambiental y vibración forzada]]></article-title>
<article-title xml:lang="en"><![CDATA[Changes in the dinamic properties of an experimental building by the analysis of ambient and forced vibration]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Huerta]]></surname>
<given-names><![CDATA[Laura Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza Garcilazo]]></surname>
<given-names><![CDATA[Luis Humberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación Científica y de Educación Superior de Ensenada División de Oceanología Departamento de Oceanografía Física]]></institution>
<addr-line><![CDATA[ Baja California]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigación Científica y de Educación Superior de Ensenada División Ciencias de la Tierra Departamento de Sismología]]></institution>
<addr-line><![CDATA[ Baja California]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<numero>spe108</numero>
<fpage>108</fpage>
<lpage>130</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-092X2022000200108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-092X2022000200108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-092X2022000200108&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este trabajo se analizan registros de vibración ambiental y de vibración forzada para determinar las propiedades dinámicas (formas modales y frecuencias características) de un edificio experimental de cinco pisos que fue construido a escala real dentro del laboratorio Charles Lee Powell de la Universidad de California en San Diego (UCSD). Este fue el primer edificio a escala real, construido en el año 1992, para realizar pruebas de resistencia sísmica en los Estados Unidos de América. Los registros de vibración se obtuvieron durante las tres etapas de las condiciones físicas del edificio: edificio recién construido, edificio dañado con carga sísmica simulada y edificio reparado. En los resultados del análisis, tanto de vibración ambiental como forzada, se observan cambios en sus propiedades dinámicas debido a la degradación de la rigidez en el edificio con daño y a la recuperación de la rigidez en el edificio reparado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Records of ambient and forced vibration are analyzed to determine the dynamic properties (modal forms and characteristic frequencies) of an experimental five-story full-scale reinforced masonry building in the Charles Lee Powell Laboratory at the University of California, San Diego (UCSD). It was the first full-scale building, built in 1992, for earthquake resistance testing in the United States of America. Vibration records were obtained during the three stages of the building: newly constructed, damaged under simulated seismic load, and repaired. The analysis of both, ambient and forced vibrations, are revealing changes in their dynamic properties due to the loose of rigidity in the damaged building, and the recovery of the rigidity in the repaired building.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[edificio experimental]]></kwd>
<kwd lng="es"><![CDATA[laboratorio Charles Lee Powell]]></kwd>
<kwd lng="es"><![CDATA[vibración ambiental]]></kwd>
<kwd lng="es"><![CDATA[vibración forzada]]></kwd>
<kwd lng="es"><![CDATA[formas modales]]></kwd>
<kwd lng="es"><![CDATA[frecuencias características]]></kwd>
<kwd lng="en"><![CDATA[experimental building]]></kwd>
<kwd lng="en"><![CDATA[Charles Lee Powell laboratory]]></kwd>
<kwd lng="en"><![CDATA[ambient vibration]]></kwd>
<kwd lng="en"><![CDATA[forced vibration]]></kwd>
<kwd lng="en"><![CDATA[modal forms]]></kwd>
<kwd lng="en"><![CDATA[characteristic frequencies]]></kwd>
</kwd-group>
</article-meta>
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