Influence of Individual Wall Strengths on Lateral Strength of URM Buildings Constructed Using Low-Strength Masonry

Choudhury, Thainswemong; Kaushik, Hemant B.

doi:10.1080/13632469.2020.1742253

Cited by 3 publications

(1 citation statement)

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“…It was also determined that the location of the transverse walls has a significant effect on shear strength of the wall. If the transverse wall is positioned closer to either ends of the wall, its shear strength increases, but when the transverse wall is in the middle of the in-plane wall, it has no effect on its shear strength [16].…”

Section: Introductionmentioning

confidence: 99%

Effects of Lateral Constraints and Geometrical Characteristics on Deformation Capacity of the Persian Historic Unreinforced Masonry Shear Walls under Uncertainty Conditions

Ghamari

Karimi

Amirshahkarami

2020

IJE

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In the most structural codes, deformation capacity of the unreinforced masonry shear walls is estimated based on their structural behavior (failure mode) and aspect ratio. In this paper, deformation capacity was determined for the Persian historic brick masonry walls by considering the effects of various parameters such as lateral constraints, aspect ratio and thickness. Also, to take into account the uncertainties in material and geometry of the walls in their deformation capacity, partial factor γdu was proposed, somehow, deformation capacity of shaer wall is determined by multiplying this factor in the computed deformation. Accordingly, the in-plane behavior of 48 different specimens of masonry walls with four lateral constraint configurations (contribution of transverse walls and also top slab), four distinct aspect ratios (height to length) of 0.5, 0.75, 1.0 and 1.5, three traditional wall thicknesses of 0.20, 0.35 and 0.50 m, under pre-compression load of 0.10 MPa were computed using nonlinear pushover analyses. Then, the obtained force-deformation curves were idealized by bilinear curves (linear elasticperfectly plastic) to make them easier for comparison objectives as well as to be more adopted in practical purposes. The latter results indicated that deformation capacity of the shear walls decreases by stiffer lateral constraints, more thickening; and decrease in height-to-length aspect ratio. In addition, it was observed that the transverse walls (vertical constraints on two sides, and at two ends of the base shear walls) were more efficient in reducing deformation capacity than the top slab (horizontal constraint). As a result, according to the numerical calculations, the ultimate drift value for the Persian historic brick masonry walls determined between 1.3% and 2.7%. Eventually, the partial factor of γdu to consider uncertainty in modulus of elasticity and thickness assessment in deformation capacity of the Persian historic masonry shear walls achieved in the range of 1.3 to 1.7.

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Section: Introductionmentioning

confidence: 99%

Effects of Lateral Constraints and Geometrical Characteristics on Deformation Capacity of the Persian Historic Unreinforced Masonry Shear Walls under Uncertainty Conditions

Ghamari

Karimi

Amirshahkarami

2020

IJE

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Numerical assessment of role of ferrocement overlay in strengthening of unreinforced masonry walls

Mukherjee

Kaushik

2023

Materials Today: Proceedings

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Experimental Evaluation of Full-Scale URM Buildings Strengthened Using Surface-Mounted Steel Bands

Choudhury

Kaushik

2021

J. Struct. Eng.

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Influence of Individual Wall Strengths on Lateral Strength of URM Buildings Constructed Using Low-Strength Masonry

Abstract: Analytical methods used in the present study for estimation of in-plane and out-of-plane (OOP) resistance of URM walls are described in this Annexure.

Cited by 3 publications

References 48 publications

Effects of Lateral Constraints and Geometrical Characteristics on Deformation Capacity of the Persian Historic Unreinforced Masonry Shear Walls under Uncertainty Conditions

Effects of Lateral Constraints and Geometrical Characteristics on Deformation Capacity of the Persian Historic Unreinforced Masonry Shear Walls under Uncertainty Conditions

Numerical assessment of role of ferrocement overlay in strengthening of unreinforced masonry walls

Experimental Evaluation of Full-Scale URM Buildings Strengthened Using Surface-Mounted Steel Bands

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