Out-of-plane behavior of clay brick masonry walls retrofitted with flexible deep mounted CFRP strips

Türkmen, Ömer; Wijte, Snm Simon; Vries, Boy T. de; Ingham, Jason

doi:10.1016/j.engstruct.2020.111448

Cited by 21 publications

(4 citation statements)

References 15 publications

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“…These two parameters can be optimized. However, in this study, the out-of-plane behavior of the proposed wall was not investigated because out-of-plane studies need a thorough experimental campaign [8,38,[54][55][56]; hence, the abovementioned dimensions were utilized. The length of the dowels was selected as 62 mm, which according to [57] has a small effect on the shear strength.…”

Section: Metal Connectorsmentioning

confidence: 99%

Effect of a Novel Dowel and Cramp On In-Plane Behavior of Multi-Leaf Stone Masonry Walls Proposed for Modern Masonry Buildings

Zia¹,

Ilgün²

2023

Preprint

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This study discusses the experimental assessment of the in-plane mechanical behavior of a multi-leaf stone masonry wall built from cut stone and reinforced with metal connectors (cramps and dowels). The wall, inspired by conventional multi-leaf stone walls, is meant for use in modern stone masonry buildings. The wall is constructed from two parallel load-bearing walls with a cavity between them, which aims to conceal the installation and insulation needed in modern buildings. The load-bearing walls are connected with cramps and dowels at certain intervals so that the wall works as a single section against horizontal and vertical loads. To characterize the in-plane behavior of the proposed wall, compressive, triplet, and diagonal compression tests were conducted to investigate the compressive strength, shear strength, modulus of elasticity, stiffness, ductility, and energy absorption of the wall. Compared with dry and mortar joint walls, the use of dowels increased the initial shear capacity of the wall by 11 and 19 times, respectively. The application of cramps without curving channels inside the individual stone elements decreased the compressive strength by 18%. The energy absorption of the designed walls with metal connectors was substantially increased to that of the specimens representing conventional stone walls. The results obtained show the applicability of the wall due to its higher shear strength and minimal drop in compressive strength, which is within acceptable limits.

show abstract

Section: Metal Connectorsmentioning

confidence: 99%

Effect of a Novel Dowel and Cramp On In-Plane Behavior of Multi-Leaf Stone Masonry Walls Proposed for Modern Masonry Buildings

Zia¹,

Ilgün²

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…These two parameters can be optimized. However, in this study, the out-of-plane behavior of the proposed wall was not investigated because out-of-plane studies need a thorough experimental campaign [8,36,[52][53][54]; hence, the abovementioned dimensions were utilized. The length of the dowels was selected as 62 mm, which according to [13], has a negligible effect on the shear strength.…”

Section: Metal Connectorsmentioning

confidence: 99%

Effect of a Novel Dowel and Cramp on the In-Plane Behavior of Multi-Leaf Stone Masonry Walls Proposed for Modern Masonry Buildings

Zia

Ilgün

2023

Buildings

View full text Add to dashboard Cite

This study discusses the experimental assessment of the in-plane mechanical behavior of a multi-leaf stone masonry wall built from cut stone and reinforced with metal connectors (cramps and dowels). Inspired by conventional multi-leaf stone walls, the wall is meant for use in modern stone masonry buildings. The wall is constructed from two parallel load-bearing walls with a cavity between them, which aims to conceal the installation and insulation needed in modern buildings. The load-bearing walls are connected with cramps and dowels at certain intervals, so the wall works as a single section against horizontal and vertical loads. To characterize the in-plane behavior of the proposed wall, compressive, triplet, and diagonal compression tests were conducted to investigate the compressive strength, shear strength, modulus of elasticity, stiffness, ductility, and energy absorption of the wall. Compared with dry and mortar joint walls, dowels increased the wall’s initial shear capacity by 11 and 19 times, respectively. Applying cramps without curving channels inside the individual stone elements decreased the compressive strength by 18%. The energy absorption of the designed walls with metal connectors was substantially increased to that of the specimens representing conventional stone walls. The results show the wall’s applicability due to its higher shear strength and minimal drop in compressive strength, which is within acceptable limits.

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“…Salem et al [6] evaluated the out-of-plane behavior of reinforced masonry shear walls with different parameters. Turkmen et al [7] studied out-of-plane retrofitting technique for clay brick masonry buildings by carbon fiber reinforced polymer (CFRP) strips. Meriggi et al [8] proposed the out-of-plane strengthening method of masonry walls by fabric reinforced cementitious matrix.…”

Section: Introductionmentioning

confidence: 99%

Out-of-Plane Strengthening of Unreinforced Masonry Walls by Glass Fiber-Reinforced Polyurea

Jang

Song

et al. 2022

Civ Eng J

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Fiber-reinforced polymer reinforcement or polyurea reinforcement techniques are applied to strengthen unreinforced masonry walls (UMWs). The purpose of this experimental study is to verify the out-of-plane reinforcing effect of sprayed glass fiber-reinforced polyurea (GFRPU), which is a composite elastomer made of polyurea and milled glass fibers on UMW. The out-of-plane strengths and ductile behaviors based on various coating shapes are compared in this study. An empirical formula to describe the degree of reinforcement on the out-of-plane strength of the UMW is derived based on the experimental results. It is observed that the peak load-carrying capacity, ductility, and energy absorption capacity gradually improve with an increase in the strengthening degree or area. Compared with the existing masonry wall reinforcement method, the GFRPU technique is a construction method that can help improve the safety performance along with ease of construction and economic efficiency. Doi: 10.28991/CEJ-2022-08-01-011 Full Text: PDF

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Out-of-plane behavior of clay brick masonry walls retrofitted with flexible deep mounted CFRP strips

Cited by 21 publications

References 15 publications

Effect of a Novel Dowel and Cramp On In-Plane Behavior of Multi-Leaf Stone Masonry Walls Proposed for Modern Masonry Buildings

Effect of a Novel Dowel and Cramp On In-Plane Behavior of Multi-Leaf Stone Masonry Walls Proposed for Modern Masonry Buildings

Effect of a Novel Dowel and Cramp on the In-Plane Behavior of Multi-Leaf Stone Masonry Walls Proposed for Modern Masonry Buildings

Out-of-Plane Strengthening of Unreinforced Masonry Walls by Glass Fiber-Reinforced Polyurea

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