Seismic performance of mid-rise thin concrete wall buildings lightly reinforced with deformed bars or welded wire mesh

Arroyo, Orlando; Feliciano, Dirsa; Carrillo, Julián; Hube, M.

doi:10.1016/j.engstruct.2021.112455

Cited by 13 publications

(4 citation statements)

References 19 publications

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“…These authors concluded that the structural system is inadequate for tall buildings and that the current regulatory requirements are insufficient to guarantee good seismic performance. Arroyo et al (2021) numerically evaluated the performance of a 6-story TRCW building with 100-mm-thick walls reinforced with WWM. These authors developed a nonlinear model of the building and an equivalent model reinforced with ductile bars.…”

Section: Introductionmentioning

confidence: 99%

Numerical evaluation of the seismic performance of thin reinforced concrete wall buildings representative of the industrialized building system

Rosero

Ortega

Marulanda

et al. 2022

Lat. Am. j. solids struct.

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The industrialized building system has specific characteristics that set it apart from the conventional concrete wall system, namely, a reduced wall thickness, the use of electro-welded wire mesh, and a lack of boundary element confinement. These conditions have attracted the interest of researchers, who have developed various experimental programs to evaluate the behavior of these walls. However, evidence on the seismic performance of buildings remains scarce. In this study, the performance of 5-, 8-and 12-story buildings was evaluated by nonlinear chronological analysis. Numerical models were constructed using the Shell Layered element of the ETABS software and adjusted based on the results from tests of isolated walls and the periods of one of the buildings identified in an ambient vibration test. The findings suggest that these buildings may fail to meet the life safety performance level in high seismic hazard areas.

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Section: Introductionmentioning

confidence: 99%

Numerical evaluation of the seismic performance of thin reinforced concrete wall buildings representative of the industrialized building system

Rosero

Ortega

Marulanda

et al. 2022

Lat. Am. j. solids struct.

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“…Initially, studies on shear forces in concrete walls (1, 2) laid the foundation for the ACI-318 building code (3), which serves as a reference for the structural design in Colombia. Building codes have been continuously modified based on the findings of new studies, incorporating new requirements for the design and construction of structural systems with reinforced concrete walls [4][5][6][7][8][9][10][11][12][13]. Regarding seismic isolation, it was initially described in various documents explaining its use, dating back to 1970 [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Influencia del aislamiento sísmico en el diseño sismorresistente de edificios con estructura de muros de concreto reforzado

Nino-Castano,

Chalarca,

Bedoya-Ruiz

2024

inycomp

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En América Latina se ha popularizado el uso de muros de concreto reforzado como sistema estructural para la construcción de edificaciones; sin embargo, este sistema se caracteriza por ser de baja ductilidad por lo cual su desempeño se ha visto comprometido durante diferentes sismos ocurridos en los últimos años. Esta investigación toma tres edificios reales con estructuras de muros en concreto reforzado, localizados en zonas de sismicidad alta y en un suelo tipo D, los cuales se diseñan según la normativa colombiana. Adicionalmente, se crean modelos numéricos no lineales para evaluar el comportamiento sísmico de los edificios ante sismos reales. Este mismo procedimiento es repetido para los tres edificios dotándolos con aisladores sísmicos y comparando su desempeño sísmico con el obtenido de los análisis de los edificios de base fija. Los resultados muestran que se mejora el desempeño de la estructura aislada ante la ocurrencia de los sismos pasando de un nivel de desempeño de protección de la vida a uno de ocupación inmediata, mientras se obtiene una reducción de hasta un 50% del acero de refuerzo y de hasta un 100% del uso de elementos de borde comparado con los edificios diseñados con base fija, conservando las ventajas constructivas y arquitectónicas del sistema de muros.

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“…In addition to conventional shear walls, some variations of this system have been developed. For example, thin lightly reinforced concrete walls have been used in the last two decades to brace mid-to-high-rise buildings in some Latin American countries [7][8][9]. This alternative system uses walls between 80 to 100 mm thick with a single steel reinforcement layer of welded wire mesh.…”

Section: Introductionmentioning

confidence: 99%

Modeling of RC Moment Frame Retrofit with Mortar Walls Reinforced with Steel Wire Mesh

Herrera,

Sosa,

Díaz

et al. 2023

Applied Sciences

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Current construction codes require detailed analyses for structural retrofitting, which must consider performance during seismic events. Therefore, the computational models used to evaluate existing infrastructure require nonlinear structural analysis and damage estimates. For structural retrofitting, nonlinear computational modeling must represent the connectivity between existing and new elements. This study proposes recommendations on structural modeling based on fiber elements to represent reinforced concrete (RC) moment frames retrofitted with mortar walls reinforced with steel wire mesh. For this purpose, capacity curves of moment frames retrofitted with mortar walls were calculated by hand with the Bernoulli–Euler beam theory, moment–curvature analyses, and a plastic hinge model. Then, these capacity curves were used to calibrate the connectivity and constraint conditions in fiber models between the existing frame and the new wall required to capture the performance of the retrofitted structure. The study found that, for a single wall connected with top and bottom frame border elements, the capacity curves from fiber models underestimate stiffness, maximum strength, and residual strength. These estimation issues are reduced by including intermediate connectivity nodes between the top and bottom frame where rigid link constraints connect the existing frame with the new wall.

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Seismic performance of mid-rise thin concrete wall buildings lightly reinforced with deformed bars or welded wire mesh

Cited by 13 publications

References 19 publications

Numerical evaluation of the seismic performance of thin reinforced concrete wall buildings representative of the industrialized building system

Numerical evaluation of the seismic performance of thin reinforced concrete wall buildings representative of the industrialized building system

Influencia del aislamiento sísmico en el diseño sismorresistente de edificios con estructura de muros de concreto reforzado

Modeling of RC Moment Frame Retrofit with Mortar Walls Reinforced with Steel Wire Mesh

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