Seismic performance of new adobe bricks masonry: Design and experiment

Zhou, Tiegang; Xin, Wang; Ma, Ben; Zhang, Zaiyu; Tan, Wei

doi:10.1177/13694332211046349

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…All three reinforcement schemes improve the seismic performance of adobe walls in terms of strength, displacement capacity, ductility, and energy dissipation, although the use of steel reinforcement is preferable. Some scholars have restrained lateral deformation of walls by setting planks [21,22]; cold-formed, thin-walled sections [23]; concrete core columns [24]; and other edge construction measures. The results of this study show that all three strengthening schemes can improve the seismic bearing capacity, ductility, and energydissipation capacities of walls, thus improving their seismic performance levels.…”

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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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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“…A recent on-site survey conducted within a Nicosia community, under the umbrella of the ISTOS center along with the subsequent development of seismic maps for the same region, have underscored the heightened vulnerability of adobe structures to collapse compared to other load-bearing counterparts. Notably, adobe construction finds widespread usage in regions of the world prone to natural hazards, including Latin America [5,6], Africa [7,8], the Indian subcontinent [9,10], various parts of Asia [11,12], the Middle East [13,14], and Southern Europe [15][16][17][18][19]. This prevalence extends to encompass approximately 30% to 50% of the world's population, which translates to an estimated 3 billion individuals who either reside in or work within earthen buildings.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Contribution of Timber Ring Beams in the Dynamic Response of Adobe Masonry Structures

Xekalakis,

Christou,

Pitilakis

et al. 2023

CivilEng

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Earthen structures made of adobe bricks are complex systems that making the identification of their behavior difficult, especially when they have to sustain lateral forces such as seismic forces. This paper presents a numerical investigation for the assessment of the structural response of unreinforced adobe masonry structures and how the installation of wooden ring beams contributes to their overall resistance. In the framework of the numerical investigation, finite element models were created to simulate the response of an adobe building with and without the presence of wooden ring beams. The test building is located in Cyprus, in the South Eastern Mediterranean region which is a seismic area. The material properties used in this study were found in the literature and were based on experimental data for local materials. The models were subjected to earthquake loads, performing time history analyses for the calculation of pertinent displacements and stresses. The findings indicate that integrating wooden ring beams reduces the fundamental period by 6% and modifies the building’s seismic behavior. This modification is evident not just in the magnitude of the stresses but also in their distribution, leading to a stratified stress profile. Peak stresses are primarily concentrated around the ring beams.

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