Nonlinear behavior of code-designed reinforced concrete concentric braced frames under lateral loading

Godínez-Domínguez, Eber Alberto; Tena‐Colunga, Arturo

doi:10.1016/j.engstruct.2009.12.020

Cited by 25 publications

(16 citation statements)

References 30 publications

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“…The observed variation of ductility capacity and overstrength shown in Figures 11a and 11b, where the larger the number of stories (slenderness ratio), the smaller the ductility and overstrength, are consistent with the results of previous research studies of this particular structural system (Godínez-Domínguez and Tena-Colunga 2010).…”

Section: Developed Ductility and Overstrengthsupporting

confidence: 80%

Redundancy Factors for the Seismic Design of Ductile Reinforced Concrete Chevron Braced Frames

Godãnez-Domãnguez

Tena‐Colunga

2016

Lat. Am. j. solids struct.

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In this paper the authors summarize the results of a study devoted to assess, using nonlinear static analyses, the impact of increasing the structural redundancy in ductile moment-resisting reinforced concrete concentric braced frames structures (RC-MRCBFs). Among the studied variables were the number of stories and the number of bays. Results obtained were compared with the currently proposed values in the Manual of Civil Structures (MOC-08), a model code of Mexico. The studied frames have 4, 8, 12 and 16-story with a story height h=3.5 m. and a fixed length L=12 m., where 1, 2, 3 or 4 bays have to be located. RC-MRCBFs were assumed to be located in soft soil conditions in Mexico City and were designed using a capacity design methodology adapted to general requirements of the seismic, reinforced concrete and steel guidelines of Mexican Codes. From the results obtained in this study it is possible to conclude that a different effect is observed in overstrength redundancy factors respect to ductility redundancy factors due to an increase of the bay number considered. Also, the structural redundancy factors obtained for this particular structural system varies respect to the currently proposed in MOC-08.

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Section: Developed Ductility and Overstrengthsupporting

confidence: 80%

Redundancy Factors for the Seismic Design of Ductile Reinforced Concrete Chevron Braced Frames

Godãnez-Domãnguez

Tena‐Colunga

2016

Lat. Am. j. solids struct.

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“…Asimismo, se emplearon las recomendaciones de diseño derivadas de una serie de análisis estáticos no lineales ante carga monótona creciente de marcos planos de entre cuatro y 24 niveles, los cuales se describen con detalle en Godínez y Tena (2009 y 2011), Godínez-Domínguez y y 2010) y Godínez (2010. Por lo anterior, para el cálculo de los factores de reducción por sobrerresistencia (R, ec.…”

Section: Metodología De Diseñounclassified

“…En Godínez y Tena (2009y 2010, Godínez-Domínguez y Tena-Colunga (2010) y Godínez (2010) se presentan algunos parámetros que se consideran útiles para el diseño de estructuras nuevas con base el sistema estructural comentado. Los parámetros de diseño se obtuvieron a partir de los resultados de análisis estáticos no lineales ante carga monótona creciente de modelos de 4, 8, 12, 16, 20 y 24 niveles.…”

Section: Introductionunclassified

Comportamiento Sísmico De Edificios Con Base en Marcos Dúctiles De Concreto Reforzado Con Contraventeo Chevrón

Godínez-Domínguez¹,

Tena‐Colunga²,

Rocha³

2012

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RESUMENSe presenta un estudio en que se evalúa, mediante análisis dinámicos no lineales paso a paso, el comportamiento sísmico de edificios de diferentes alturas (ocho, 15 y 24 niveles) estructurados con base en marcos dúctiles de concreto reforzado con contraventeo metálico tipo chevrón. Los edificios se diseñaron para tres diferentes zonas (zona costa del estado de Guerrero y zonas IIIa y IIIb del lago del Distrito Federal), de acuerdo a la altura de cada modelo. De los resultados expuestos, es posible concluir que si se emplean conceptos de diseño por capacidad, así como parámetros de diseño específicos al sistema estructural considerado, es posible obtener capacidades de deformación y sobrerresistencia adecuados, así como un desempeño estructural satisfactorio.Palabras Clave: marcos dúctiles contraventeados; contraventeo chevrón; marcos de concreto reforzado; diseño por capacidad; análisis dinámicos no lineales; desempeño estructural ABSTRACTIn this paper the authors summarize the results of a study devoted to evaluate, using nonlinear dynamic analyses, the seismic behavior of ductile moment-resisting reinforced concrete concentric braced frames structures (RC-MRCBFs) using chevron steel bracing (eight, 15 and 24 stories in height). RC-MRCBFs were assumed to be located in three different soil conditions in Mexico (coastline zone of the state of Guerrero and lakebed zones IIIa and IIIb of Mexico City). From the results obtained, it is possible to conclude that if capacity design principles and specific design parameters for the new design of RC-MRCBFs are used, suitable global ductility capacities and overstrength demands are obtained, and a satisfactory structural performance is achieved.

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“…Godínez-Domínguez and Tena-Colunga [14] used a nonlinear static method to evaluate the behavior of the dual ductile concrete moment frame and special concentric bracing system. The researchers designed the 4 to 24 story frames by the capacity design method based on the Mexican design regulations.…”

Section: Introductionmentioning

confidence: 99%

Using concentric and zipper steel braces by comparison of effect on improved seismic performance level of concrete moment frame structures with moderate ductility

Nezamisavojbolaghi

2019

SN Appl. Sci.

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Recent earthquakes have revealed that, in many cases, the design codes may not guarantee the integrity of all structures for the life safety performance level. Therefore, it seems necessary to study the performance of designed buildings in order to complete, develop and amend the codes. In this paper, the performance level was investigated using the nonlinear static analysis in concrete buildings with moderate ductility and designed according to the latest regulations. Then, as the life safety performance level was not achieved and due to the ease of implementation of steel braces, the concentric chevron brace was used to improve the performance level of these buildings in large bays, and the zipper steel brace was used. The results show that the zipper brace used for strengthening the reinforced concrete structures will increase the performance as well as the stiffness, without the need to strengthen the beams and columns.

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Nonlinear behavior of code-designed reinforced concrete concentric braced frames under lateral loading

Cited by 25 publications

References 30 publications

Redundancy Factors for the Seismic Design of Ductile Reinforced Concrete Chevron Braced Frames

Redundancy Factors for the Seismic Design of Ductile Reinforced Concrete Chevron Braced Frames

Comportamiento Sísmico De Edificios Con Base en Marcos Dúctiles De Concreto Reforzado Con Contraventeo Chevrón

Using concentric and zipper steel braces by comparison of effect on improved seismic performance level of concrete moment frame structures with moderate ductility

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