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

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          Abstract

          Abstract 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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          Most cited references32

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          Normas Técnicas Complementarias para Diseño por Sismo

          (2004)
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            Normas Técnicas Complementarias para diseño y Construcción de Estructuras de Concreto

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              Minimum design loads for buildings and other structures

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                lajss
                Latin American Journal of Solids and Structures
                Lat. Am. j. solids struct.
                Associação Brasileira de Ciências Mecânicas
                1679-7825
                November 2016
                : 13
                : 11
                : 2088-2112
                Affiliations
                [1 ] Universidad Autónoma de Chiapas Mexico
                [2 ] Universidad Autónoma Metropolitana-Azcapotzalco México
                Article
                S1679-78252016001102088
                10.1590/1679-78252827
                0bf7c2e1-83eb-4e63-859c-0073e204b497

                This work is licensed under a Creative Commons Attribution 4.0 International License.

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=en
                Categories
                ENGINEERING, CIVIL
                ENGINEERING, MECHANICAL
                MECHANICS

                Classical mechanics,Civil engineering,Mechanical engineering
                Structural redundancy,Steel braces,ductility,overstrength,Seismic design,RC braced frames

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