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Confined ungrouted and reinforced masonry is used as a lateral stiffening element against seismic loading. Research has shown that the presence of reinforcement in confined masonry walls guarantees a less fragile behavior of the structure and controls drifts and displacements under cyclic lateral loads. The present research evaluates the structural behavior of four-story reinforced concrete framed buildings under seismic load stiffened with confined masonry walls and reinforced confined masonry walls, located in the province of Santiago de Cuba. The objective is to determine the influence of reinforcement in confined masonry on the collapse mechanism and performance level. The dynamic soil-structure interaction is considered by including the stiffness and damping coefficients of A.E Sargsian and the nonlinear analysis (Pushover) is performed using Midas Gen v21 software. It is demonstrated that the presence of reinforcement positively influences the performance and collapse mechanism of the structure according to the Cuban standard (NC-46. (2017). Construcciones sismorresistentes. Requisitos básicos para el diseño y la construcción. La Habana, Cuba: Oficina Nacional de Normalización).

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Seismic Performance of a Concrete Frame Building with Confined and Reinforced Masonry Walls

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  • 发表日期：

    2026年

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  • Jean Carlos Caballero Cruz,
  • Nelson Fundora Sautié,
  • Darío Candebat Sánchez,
  • Janet Otmara Martínez Cid

摘要

Confined ungrouted and reinforced masonry is used as a lateral stiffening element against seismic loading. Research has shown that the presence of reinforcement in confined masonry walls guarantees a less fragile behavior of the structure and controls drifts and displacements under cyclic lateral loads. The present research evaluates the structural behavior of four-story reinforced concrete framed buildings under seismic load stiffened with confined masonry walls and reinforced confined masonry walls, located in the province of Santiago de Cuba. The objective is to determine the influence of reinforcement in confined masonry on the collapse mechanism and performance level. The dynamic soil-structure interaction is considered by including the stiffness and damping coefficients of A.E Sargsian and the nonlinear analysis (Pushover) is performed using Midas Gen v21 software. It is demonstrated that the presence of reinforcement positively influences the performance and collapse mechanism of the structure according to the Cuban standard (NC-46. (2017). Construcciones sismorresistentes. Requisitos básicos para el diseño y la construcción. La Habana, Cuba: Oficina Nacional de Normalización).