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Título del libro: 8th Us National Conference On Earthquake Engineering 2006
Título del capítulo: Lateral acceleration demands in buildings located in the soft soil region of Mexico City

Autores UNAM:
EDUARDO REINOSO ANGULO;

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Autores externos:

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Idioma:

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Año de publicación:
2006

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Palabras clave:

Dynamic property; Ground motions; Higher mode; In-buildings; Lateral acceleration; Mexico City; Non-structural components; Shear beams; Simplified method; Soft soils; Soil conditions; Buildings; Civil engineering; Engineering geology; Geologic models; Earthquakes

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Resumen:

We used a simplified method to estimate lateral acceleration demands in buildings subjected to earthquakes located in the lakebed zone in Mexico City. The simplified model consists of a flexural beam laterally coupled with a shear beam. We compared the results of seven instrumented buildings to recorded motions in more than 20 earthquakes. Some of the buildings have been damaged and subsequently retrofitted, and the records reflect the changes in their dynamic properties. The simplified model is capable of reproducing such changes, and produces relatively good results even for buildings founded over extreme soil conditions like those in Mexico City. The recorded data for different earthquakes allow us to examine the variation of damping and dominant period with changes in ground motion intensity. Some of the responses depend on the source of the earthquake: subduction ones have more energy in long periods, so taller buildings respond mainly in the first mode; normal-fault earthquakes increase the participation of higher modes. Variations of acceleration demands along the height show that in some cases current seismic provisions for anchoring nonstructural components in buildings may be inadequate. Copyright © (2006) by Earthquake Engineering Research Institute.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9781615670444
Editorial:

Tipo de producto:
Conference Paper