Earthquake-resistant behavior of three mid-rise buildings designed according venezuelan seismic codes

Gaceta Técnica

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Title Earthquake-resistant behavior of three mid-rise buildings designed according venezuelan seismic codes
Comportamiento sismo-resistente de tres edificios de mediana altura proyectados según las normas venezolanas
 
Creator Ugel, Ronald
Herrera, Reyes Indira
 
Description Here is presented a study on the seismic vulnerability of three mid-rise structural models projected according to Venezuelan seismic code Covenin 1756-01. Models have similar structural configurations in plant and in inter-story heights. Seismic action uses hybrid accelerograms compatible with the design spectrum characteristic of the metropolitan area Barquisimeto-Cabudare. Damage Evaluation is made through fragility curves and damage indices, including probabilistic approach. Some models showed high probability of severe damage or collapse, suffering significant stiffness degradation and lateral deformations beyond normative limits, showing that relative displacements and stiffness degradation are fundamental indicators for structural damage. It is concluded that to evaluate the behavior of the analyzed structural models subjected to probable seismic action, it ́s required a detailed study of the horizontal displacements, particularly relative displacements between levels and that the provisions of the Venezuelan seismic code may not be sufficient for evaluating the seismic performance of these models
Se presenta un estudio de la vulnerabilidad sísmica de tres modelos estructurales de mediana altura proyectados según la norma venezolana Covenin 1756-01. Los modelos tienen similares configuraciones en planta y en alturas de entrepiso; en la acción sísmica se utilizaron acelerogramas híbridos, compatibles con el espectro de diseño característico de la zona metropolitana Barquisimeto-Cabudare. El daño se evaluó mediante curvas de fragilidad e índices de daño, incluido el enfoque probabilista. Algunos modelos mostraron altas probabilidades de daño severo o colapso, sufriendo deformaciones laterales y degradaciones de rigidez significativas más allá de límites aceptables normativos, evidenciando que los desplazamientos relativos, y la rigidez son indicadores fundamentales del daño estructural. Se concluyó que para evaluar el comportamiento de los modelos estructurales analizados, sometidos a la acción sísmica probable, se requiere de un detallado estudio de los desplazamientos horizontales, particularmente de los desplazamientos relativos entre niveles, y que las previsiones de la norma venezolana podrían no ser suficientes para la evaluación del desempeño sísmico de estos modelos
 
Publisher Universidad Centroccidental Lisandro Alvarado - Decanato de Ingeniería Civil
 
Date 2016-01-15
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Artículo científico de investigación original
 
Format application/pdf
 
Identifier https://revistas.ucla.edu.ve/index.php/gt/article/view/1255
10.13140/RG.2.1.5031.7687
 
Source Gaceta Técnica; Vol 14 No 1 (2015): July-December; 33-55
Gaceta Técnica; Vol. 14 Núm. 1 (2015): Julio- Diciembre; 33-55
Gaceta Técnica; v. 14 n. 1 (2015): Julio- Diciembre; 33-55
2477-9539
1856-9560
 
Language spa
 
Relation https://revistas.ucla.edu.ve/index.php/gt/article/view/1255/557
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