Behavior of post-tensioned dry-stack interlocking masonry walls under out of plane loading

Sokairge, Hesham; Rashad, Ahmed; Elshafie, Hany

doi:10.1016/j.conbuildmat.2016.12.071

Cited by 29 publications

(12 citation statements)

References 3 publications

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“…Wall T3 has one post-tensioned bar in the middle which undergoes 40% of post-tensioning level which is equal to 16.4 kN, and 2 reinforcement bar at the sides with no posttensioning force applied to it. Du/Dc ratio for all wall indicate avgood energy absorption capacity and a good margin of warning after crack and before failure occurs [8] and grouted walls exhibit a higher ability to absorb energy almost four times [9].…”

Section: Fig 9 Mode Of Failure Of Wall T3mentioning

confidence: 96%

“…The application of interlocking blocks with post-tensioning bars created unique behaviour which by using strain compatibility equations it will not give an accurate result, instead empirical formula MATEC Web of Conferences 203, 06023 (2018) https://doi.org/10.1051/matecconf/201820306023 ICCOEE 2018 were used. The wall ultimate load capacity was determined using ACI-318 [9] empirical formulas to determine the stress at ultimate in the post tensioning bar using Equation (1), (2) and (3). The formula given by ACI-318 code to find the stress inbounded tendon are:…”

Section: Ultimate Limit Statementioning

confidence: 99%

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Bending Behaviour of Post-tensioned Interlocking Block Masonry Wall

Muda¹,

Naganthan

Balasingam

et al. 2018

MATEC Web Conf.

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Interlocking soil blocks are on of modern techniques of house construction due to its durability. The use of these blocks fits suitably within the production cost and environmental quality as an alternative to fired bricks. This paper reports the result investigation done on walls made using interlocking soil blocks. Three types of walls with different combination of reinforcements were tested. The performance is assessed in terms of cracking patterns, failure modes and load-deflection characteristic. Results show that the ductility of all walls are good and wall with post-tensioned bars performed the best. The post tensioned walls are able to deflect up to 42% without any failure compare to non pre stressed wall. The walls with combination of reinforcement and post –tensioned systems are more ductile compare to walls with reinforcement only. It is concluded, post-tensioned wall developed using interlocking soil blocks can be used in reinforced and post-tensioned masonry application instead of conventional brick masonry.

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Section: Fig 9 Mode Of Failure Of Wall T3mentioning

confidence: 96%

Section: Ultimate Limit Statementioning

confidence: 99%

Bending Behaviour of Post-tensioned Interlocking Block Masonry Wall

Muda¹,

Naganthan

Balasingam

et al. 2018

MATEC Web Conf.

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“…[34] et al investigated deflection of interlocking block walls with mortarless joint, notable augmentation in compressive strength , and the deviation was higher. Hesham Sokairge [35] et al examine that the dry-stacked brick wall out of a plane performance. There is no difference in out of plane strength of the interlocking and conventional wall, whereas, the interlocking with post-tensioned grouted walls shows 1.6 times higher concentration than the conventional one.…”

Section: Masonry With Interlocking Mortar Less Techniquementioning

confidence: 99%

An Assessment of Brick Masonry Strengthening Practice by Special Methods

Kanchidurai*¹,

Krishanan²,

Baskar³

2019

IJRTE

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This study aims to identify the best suitable method to enhance strength and the structural performance of masonry. There are different techniques available to strengthen the existing and new masonry structures. This paper deals the metal/mesh embedment in the masonry wall, strengthening by added different polymers and textile strips, masonry grout, engineered cementitious materials (ECC) and interlocking masonry method. The comparison of different unique masonry strengthening methods helps us to provide a better suggestion for construction issues. In contrast to the conventional method, welded wire mesh gives better results than all other ways. Also, embedment of TRM, ECC, FRP, GFRP, CFRP, and interlocking holds an excellent performance in some other aspects.

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“…Main source of out-of-plane loading for masonry walls are considered as wind and earthquake. Experimental study of reinforced and unreinforced masonry walls subjected to these lateral loading was previously studied (Drysdale and Essawy 1988;Velazquez andEhsani 2000, Uzoegbo 2001;Griffith et al 2004, Safiee et al 2011and Sokairge et al 2017. However, work on masonry interlocking walls under out-ofplane loading has rarely been considered.…”

Section: Introductionmentioning

confidence: 99%

“…However, the wall capacity decreased by increasing the slenderness of the walls. In another research work by Sokairge et al 2017, dry stack interlocking masonry system was used and tested for out-of-plane loading. It was discussed that this system has some disadvantages like low bending capacity and also interlocking units had to settle down to balance uneven surfaces which could result in low strength and stiffness of the walls.…”

Section: Introductionmentioning

confidence: 99%

Effect of natural fibrous plaster on lateral resistance of mortarless interlocking wall

Qamar¹,

Thomas²,

Ali³

2019

Sustainable Construction Materials and Technologies (SCMT)

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Masonry structure subjected to lateral loads like earthquake present some inadequacies due to lack of its tensile strength, as reported in the literature. Strength evaluation of the masonry houses defined by modern standards are based on quantitative assessment. As a result, validated mechanical parameters should be made available on large scale for practical applications. Therefore, in this study 2200 mm high interlocked masonry walls mostly used in poor developing countries are experimentally tested. The research focus was to evaluate the mechanical and dynamic parameters like elastic stiffness, first crack load, toughness index and dynamic stiffness. Experimental work was concentrated on fibrous plastered walls. Non-plastered and fibrous-plastered masonry walls were compared using natural fibre (rice straw) and subjected to lateral load. 2% rice straw by weight of cement was used. The factor of increase in failure loads over unplastered walls was found to be up to 250% for fibrous plastered walls.

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Behavior of post-tensioned dry-stack interlocking masonry walls under out of plane loading

Cited by 29 publications

References 3 publications

Bending Behaviour of Post-tensioned Interlocking Block Masonry Wall

Bending Behaviour of Post-tensioned Interlocking Block Masonry Wall

An Assessment of Brick Masonry Strengthening Practice by Special Methods

Effect of natural fibrous plaster on lateral resistance of mortarless interlocking wall

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