Strength and stiffness of post-heated columns repaired with ferrocement and fibre reinforced polymer jackets

Yaqub, M.; Bailey, Colin; Nedwell, Paul; Khan, Qaiser uz Zaman; Iqbal, Javed

doi:10.1016/j.compositesb.2012.05.041

Cited by 68 publications

(27 citation statements)

References 20 publications

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“…However, there is no hard rule for absolute definition of ductility [8]. The load displacement curves, given in Fig.…”

Section: Ductilitymentioning

confidence: 99%

“…Ho et al [7] strengthened circular plain and RC columns with high performance ferrocement jackets (comprising rendering material and wire mesh). Yaqub et al [8] tested post-heated square and circular RC columns after repair with ferrocement jackets. Kaish et al [9] presented untraditional ferrocement jackets for restrengthening square short columns.…”

Section: Introductionmentioning

confidence: 99%

“…The more availability, lower cost and less need for advanced installation technique for steel meshes (EMM and WWM) make them predominant in developing countries. Steel meshes encapsulated in thin-wall mortar layer (ferrocement, [6]) were extensively used in repair and rehabilitation of existing concrete columns [2,3,[7][8][9][10][11]. The uniform distribution of reinforcement in mortar improves many engineering properties such as the ductility, crack resistance, in-plane strength and durability.…”

Section: Introductionmentioning

confidence: 99%

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Improved confinement of reinforced concrete columns

El-Kholy

Dahish

2016

Ain Shams Engineering Journal

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Traditional steel ties reinforcement cannot provide superior confinement for reinforced concrete (RC) columns due to the constraints on tie spacing and disturbance of concrete continuity. This paper presents a practical confinement configuration consisting of single Expanded Metal Mesh (EMM) layer in additional to regular tie reinforcement. The EMM layer is warped above ties. The proposed transverse reinforcement, with various volumetric ratios of ties, was investigated in sixteen square short RC column specimens categorized in two groups according to their slenderness ratios. The specimens were cast in vertical position simulating the construction field and they were tested under concentric compression till failure. The results indicated that the columns, confined with proposed lateral reinforcement, revealed significant improvement in the strength and ductility. Also, high reduction in ties volumetric ratio with no loss in ultimate load could be achieved by installing the EMM layer. Ó 2015 Production and hosting by Elsevier B.V. on behalf of Ain Shams University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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“…However, there is no hard rule for absolute definition of ductility [8]. The load displacement curves, given in Fig.…”

Section: Ductilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Improved confinement of reinforced concrete columns

El-Kholy

Dahish

2016

Ain Shams Engineering Journal

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“…According to the work reported by Yaqub [29], the rate of temperature increase adopted in this test was 5°C/min. During the heating process, the temperatures of 300°C and 500°C were retained for 30 minutes in order to avoid inconformity of temperature distribution throughout the specimen.…”

Section: Methods Of Temperature Increasementioning

confidence: 99%

Performance of Steel Tube Strengthened Recycled Concrete Exposure to High Temperature and Reinforced by CFRP

Yuan¹,

Dong²,

Wang³

2017

JRST

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This paper presents the results of experimental investigations on steel tube strengthened recycled concrete (STSrC) exposed to high temperatures and reinforced by CfrP. The failure mode, bearing capacity and deformability of the columns were investigated to analyze the effects of CfrP, temperatures (300°C, 500°C and 700°C), and recycled coarse aggregate (rCa) replacement ratios (0%, 50% and 100%) on mechanical performance. The results indicate that the higher exposed temperatures, the more cracks occurred and the lower ultimate load carrying capacities for the specimens, and the failure mode and load capacity could be increased greatly by external strengthened with CfrP sheets. however, the higher rCa replacement ratio could induced a smaller cracks and higher load capacity, and the specimens with 50% rCa ratio gave the highest load capacity when exposed to high temperature. in addition, the ABAQUS software was employed to conduct finite element analysis (FEA) of STSRC reinforced, and a comparison of results calculated using the proposed model exhibits good agreement with an experimental results.

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“…In this study all the twelve models of RC column with and without wire mesh are to be done in CATIA Software in STEP format and then they imported to ANSYS workbench software. Input data given for the various materials to the ANSYS software such as for longitudinal reinforcement bar and for lateral ties modulus of elasticity taken as 2x10 5 …”

Section: Finite Element Analysis Using Ansys Finite Elementmentioning

confidence: 99%

Experimental Study of Improvement in Confinement of Reinforced Concrete Column by Using Expanded Metal Mesh

Mursal¹

2017

IJRASET

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Traditional steel ties reinforcement cannot provide superior confinement for reinforced concrete (RC) columns due to the constraints on tie spacing and disturbance of concrete continuity. This project presents a practical confinement configuration consisting of single Expanded Metal Mesh (EMM) layer in additional to regular tie reinforcement. The EMM layer is warped above ties. The proposed transverse reinforcement with various volumetric ratios of ties, was investigated in twelve square short RC column specimens categorized in two groups according to their slenderness ratios. The specimens were cast in vertical position simulating the construction field and they were tested under concentric compression till failure. The results indicated that the columns, confined with proposed lateral reinforcement, revealed significant improvement in the strength and ductility. Also, high reduction in ties volumetric ratio with no loss in ultimate load could be achieved by installing the EMM layer.

show abstract

Strength and stiffness of post-heated columns repaired with ferrocement and fibre reinforced polymer jackets

Cited by 68 publications

References 20 publications

Improved confinement of reinforced concrete columns

Improved confinement of reinforced concrete columns

Performance of Steel Tube Strengthened Recycled Concrete Exposure to High Temperature and Reinforced by CFRP

Experimental Study of Improvement in Confinement of Reinforced Concrete Column by Using Expanded Metal Mesh

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