Behaviour of Rehabilitated Structural Walls

Khalil, Ali; Ghobarah, A.

doi:10.1080/13632460509350547

Cited by 24 publications

(10 citation statements)

References 2 publications

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“…Some of the attractive features of FRP composites include high strength-to-weight ratios (specific strength), higher corrosion resistance and ease of application. The majority of published research focused on the retrofit of solid shear walls [11][12][13]. However, there are very few studies that involved evaluation of FRP retrofit of shear walls with openings [14,15].…”

Section: Seismic Repair and Retrofit Of Reinforced Concrete Shear Walmentioning

confidence: 99%

Polymer Composites in Construction: An Overview

Mosallam¹,

Bayraktar²,

Elmikawi³

et al. 2014

SOJMSE

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Section: Seismic Repair and Retrofit Of Reinforced Concrete Shear Walmentioning

confidence: 99%

Polymer Composites in Construction: An Overview

Mosallam¹,

Bayraktar²,

Elmikawi³

et al. 2014

SOJMSE

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“…Antonides et al [7] used FRP strips at the wall edges along with FRP jackets to strengthen repaired RC walls to enhance both exural and shear capacities. Khalil & Ghobarah [8] used a rehabilitation scheme to improve the strength by using two wrapping layers of biaxial FRP woven at 45 and ductility by using U-shaped partial hoops of CFRP uni-directional sheets wrapped around the edge element. El-Sokkary et al [9] studied the e ects of rehabilitation of two 8-story cantilevered RC shear walls by CFRP laminates through a shake table test program consisting of testing the walls under several levels of ground motion excitation.…”

Section: Introductionmentioning

confidence: 99%

Investigating the seismic behavior of RC shear walls with openings strengthened with FRP sheets using different schemes

Vojdan

Aghayari

2017

Scientia Iranica

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Abstract. This paper investigates the seismic behavior of RC shear walls strengthened by Fiber Reinforced Polymer (FRP) composites. In this research, the e ects of strengthening shear walls with di erent strengthening schemes and also strengthening walls with openings in di erent dimensions and locations are studied. The development of nonlinear niteelement methods has improved the accuracy of seismic analysis of complex structures. In this study, the ABAQUS software is used to investigate the nal resisting parameters, ductility, and behavior factor in these walls using nonlinear static analysis. The ndings prove that the applied strengthening schemes increase the nal strength of the wall. Also, the increasing ductility, behavior factor, and increased overstrength factor in some of these walls compared with original walls are observed. The ndings also prove that special openings with limited dimensions to improve seismic behavior of the wall are e ective, and the only limitation of using these openings is decreasing the nal strength which can be made up by using a proper strengthening scheme of FRP.

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“…In Equation [20], is taken to be equal to , and is the lap splice length of the bar. The bar stress , where is the steel modulus of elasticity and is the steel strain directly measured from the experiment.…”

Section: Lap Splice Modelling Methodologymentioning

confidence: 99%

“…The steel material properties are detailed inTable 4.3. The bond stress-slip relationship for both types of lap splices (No 10,20).…”

mentioning

confidence: 99%

Seismic Retrofit and Strengthening of Deficient Reinforced Concrete Shear Walls Using Externally Bonded Fibre Reinforced Polymer Sheets

Shaheen¹

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Seismically deficient reinforced concrete structures are widely present in many regions of the world. Structural deficiencies commonly found in old reinforced concrete structures are poor confinement, poor detailing and the presence of non ductile details (lap splices) at the plastic hinge region. The adverse effects of these deficiencies often translate to poor seismic performance due to poor energy dissipation capabilities, poor ductility behaviour, and the association of these effects with brittle failure mechanisms. The Seismic response of old deficient shear wall structures built in the 1960's and 1970's is investigated. The wall specimens investigated contain poor confinement, insufficient shear reinforcement, and lap splices of the longitudinal reinforcement located at the plastic hinge region. As a result of these deficiencies, the wall specimens have non-ductile response behaviour

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Behaviour of Rehabilitated Structural Walls

Cited by 24 publications

References 2 publications

Polymer Composites in Construction: An Overview

Polymer Composites in Construction: An Overview

Investigating the seismic behavior of RC shear walls with openings strengthened with FRP sheets using different schemes

Seismic Retrofit and Strengthening of Deficient Reinforced Concrete Shear Walls Using Externally Bonded Fibre Reinforced Polymer Sheets

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