Rope mesh as a seismic reinforcement for two-storey adobe buildings

Tarque, Nicola; Blondet, Marcial; Neumann, Julio Vargas; Yallico-Luque, Ramiro

doi:10.1007/s10518-022-01346-7

Cited by 16 publications

(15 citation statements)

References 24 publications

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“…Esta aseveración puntualiza que, los inmuebles de tierra no sólo tienen un valor histórico por la antigüedad, sino por llevar consigo el patrimonio inmaterial de la población. De esta manera, al ser la construcción de adobe parte del patrimonio material e inmaterial, se enfatiza en su estudio para entender cómo mitigar su vulnerabilidad y garantizar cierta seguridad sísmica (14,16,20).…”

Section: Discussionunclassified

“…A través de esta valoración se entienden los errores y se construyen alternativas que aporten al mejoramiento estructural, sin comprometer los criterios patrimoniales, la identidad y el valor del inmueble. Así, se reconoce la importancia de la elección o diseño de la intervención y su desarrollo en un contexto y condición singular, ya que cada edificación posee diferentes requerimientos para minimizar los efectos sísmicos (14,15,20). Con este objetivo se plantea un método que descarta materiales y soluciones de poca efectividad mediante ensayos e interpretación de dichos resultados, definiendo las estrategias antes de ser aplicadas.…”

Section: Discussionunclassified

“…A su vez, las patologías estructurales evidenciadas muestran un nivel de afección con urgencia de mantenimiento y acciones de mitigación (11). También muestra predominio de elementos arquitectónicos y estructurales de configuraciones inadecuadas (12,14,15) que incrementan la vulnerabilidad sísmica.…”

Section: Metodologíaunclassified

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Propuesta de refuerzo sísmico con carrizo para mamposterías de adobe en construcciones patrimoniales

Cedeño¹,

Ullauri

Cajamarca-Zuniga

et al. 2023

infconstr

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La experiencia mundial sobre la pérdida de bienes históricos corrobora que los asentamientos urbanos patrimoniales construidos con tierra se encuentran en evidente riesgo sísmico. Esta problemática posiciona a las intervenciones de refuerzo estructural como una alternativa para proteger estas edificaciones. En el presente artículo se plantea una propuesta arquitectónica para el refuerzo sísmico con carrizo (Phragmites australis) para muros de mampostería de adobe; el proceso metodológico incluye la caracterización del material, construcción de arquetipos, diseño y validación del refuerzo a partir de ensayos físicos que representen el efecto de cargas horizontales en arquetipos con y sin refuerzo estructural. Los resultados experimentales muestran que el ángulo de inclinación de los arquetipos reforzados supera a aquellos sin refuerzo en 17,49%, y el ancho de las fisuras se reduce en 71,47%. También se incrementa la capacidad a flexión y se adapta en 87,32% para uso según criterios de autenticidad, mínima intervención y compatibilidad.

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Section: Discussionunclassified

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Propuesta de refuerzo sísmico con carrizo para mamposterías de adobe en construcciones patrimoniales

Cedeño¹,

Ullauri

Cajamarca-Zuniga

et al. 2023

infconstr

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“…Those researchers then obtained change patterns for the properties of the modified adobe blocks under various admixtures. Second, in terms of investigating methods for strengthening structures, some scholars have enhanced the strengths of walls by covering the exterior of the adobe wall with steelwire mesh [16,17], steel plates [18], nylon-rope mesh [19], and other structural measures. Previous tests have shown that these strengthening materials can improve the collapse resistance of buildings.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Seismic Behavior of a Modified Adobe-Brick-Masonry Composite Wall with a Wooden-Construction Center Column

et al. 2023

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Damage to adobe constructions might occur due to a long wall and a lack of effective restraint in the middle of the wall, causing it to collapse under an earthquake. Aiming at these problems, a technology for improving the seismic performance of a modified adobe-brick-masonry composite wall with a wooden-construction center column is proposed. It uses modified mud, a wooden center column, steel-wire mesh, and nylon ropes to reinforce the wall. On this basis, four specimens of composite wall and one specimen of modified adobe wall were subjected to proposed quasistatic, cyclic in-plane loading tests to study their failure modes and seismic performance indicators. The results show that the failure modes of all walls were shear failure. The difference is that the modified adobe wall had horizontal cracks in the middle, whereas the composite walls were largely intact. Moreover, the composite walls relied on the modified mud to improve the seismic bearing capacity of each wall. They relied on the center column and the tie materials to form a second line of defense that would increase the wall ductility and collapse residual area. As a result, the phenomenon that caused wall damage and stiffness degradation was lessened.

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“…Events such as the Peru 2007 and the Chile 2010 earthquakes highlighted the vulnerability of historic earthen buildings to seismic forces [6,7]. The deficiencies in their seismic behavior can be attributed to factors such as poor material properties, irregular distribution of walls and openings, weak connections between walls, inadequate wall-floor-roof connections, heavy roofs and floors, and deficient out-of-plane strength [8][9][10][11][12][13][14]. Earthen buildings have evidenced partial collapse for 0.5% of inter-story drift levels [8,13,15].…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance of a 1:4 Scale Two-Story Rammed Earth Model Reinforced with Steel Plates Tested on a Bi-Axial Shaking Table

Barrera,

Ruiz,

Reyes

et al. 2023

Buildings

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During the 16th and 17th centuries, Latin American cities adopted earthen construction techniques from European colonizers. As a result, rammed earth (RE) buildings now occupy an important place in Latin America’s cultural heritage. However, earthquakes around the world have shown that unreinforced earthen constructions are highly vulnerable. For several years, researchers in northern South America have been proposing a technique that consists of installing confining steel plates (or wooden elements) on both sides of the RE walls to form a grid. This system has shown excellent performance in controlling seismic damage and increasing strength and ductility capacity. Although researchers have tested full-scale one- and two-story earthen walls under pseudo-static loading in the laboratory, and one- and two-story earthen walls at 1:1 and 1:2 scales on uniaxial and biaxial shaking tables, the behavior of a complete reinforced module (one- or two-story) on a shaking table has never been assessed. The present study presents the results of shaking table tests performed on two-story RE modules at 1:4 scale. The experimental data indicate that the retrofit system with confining steel plates was effective in reducing the seismic damage of earthen constructions. In addition, the comparison of the results of the 1:4 scale tests with the 1:2 and 1:1 scale tests previously conducted by the researchers shows that the acceleration levels of the equivalent prototypes are in the same order of magnitude for the three scales.

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Rope mesh as a seismic reinforcement for two-storey adobe buildings

Cited by 16 publications

References 24 publications

Propuesta de refuerzo sísmico con carrizo para mamposterías de adobe en construcciones patrimoniales

Propuesta de refuerzo sísmico con carrizo para mamposterías de adobe en construcciones patrimoniales

Experimental Study on the Seismic Behavior of a Modified Adobe-Brick-Masonry Composite Wall with a Wooden-Construction Center Column

Seismic Performance of a 1:4 Scale Two-Story Rammed Earth Model Reinforced with Steel Plates Tested on a Bi-Axial Shaking Table

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