Seismic Behavior of Beam-Column Joints Reinforced with GFRP Bars and Stirrups

Mady, Mohamed; El-Ragaby, Amr; El-Salakawy, Ehab

doi:10.1061/(asce)cc.1943-5614.0000220

Cited by 69 publications

(39 citation statements)

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“…Also, integration of this investigation's results and those obtained from previous studies (Mady et al 2009;Hasaballa et al 2011) will help to have better understanding of exterior beam-column joints behaviour in general.…”

Section: Research Objectivesmentioning

confidence: 72%

“…However, up to date, none or very few researches have been conducted on integral performance of FRP-RC framed structures where two or more structural elements interact with each other (Fukuyama et al 1995;Said & Nehdi 2004;Mady et al 2009;Hasaballa et al 2011). One of the most influential regions in the integral behaviour of a frame is "beam-column joints".…”

Section: Introductionmentioning

confidence: 99%

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Seismic Performance of GFRP-RC Exterior Beam–Column Joints with Lateral Beams

Ghomi

El-Salakawy

2016

J. Compos. Constr.

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In the past few years, some experimental investigations have been conducted to verify seismic behaviour of fiber reinforced polymer reinforced concrete (FRP-RC) beam-column joints. Those researches were mainly focused on exterior beam-column joints without lateral beams. However, lateral beams, commonly exist in buildings, can significantly improve seismic performance of the joints. Moreover, the way the longitudinal beam bars are anchored in the joint, either using headed-end or bent bars, was not adequately addressed. This study aims to fill these gaps and investigate the shear capacity of FRP-RC exterior beam-column joints confined with lateral beams, and the effect of beam reinforcement anchorage on their seismic behaviour. Six full-scale exterior beam-column joints were constructed and tested to failure under reversal cyclic loading.Test results showed that the presence of lateral beams significantly increased the shear capacity of the joints. Moreover, replacing bent bars with headed-end bars resulted in more ductile behaviour of the joints.iii

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Section: Research Objectivesmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Seismic Performance of GFRP-RC Exterior Beam–Column Joints with Lateral Beams

Ghomi

El-Salakawy

2016

J. Compos. Constr.

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“…Two types of repeated loading schemes such as constant amplitude fatigue loading (scheme I) and accelerated fatigue loading with variable amplitude (scheme II) are taken for investigation [19]. The use of the non-corrodible fiber-reinforced polymer (FRP) reinforcing bars in parking garages and road overpasses in extreme weather conditions is beneficial to overcome the steel-corrosion problems [20].…”

Section: Figure 5 Various Types Of Frp Reinforcementsmentioning

confidence: 99%

Finite Element Analysis of Beam – Column Joints Reinforced with GFRP Reinforcements

Balamuralikrishnan

Saravanan

2019

Civ Eng J

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Glass Fibre Reinforcement Polymer (GFRP) reinforcements are currently used as internal reinforcements for all flexural members due to their resistance to corrosion, high strength to weight ratios, the ability to handle easily and better fatigue performance under repeated loading conditions. Further, these GFRP reinforcements prove to be the better alternative to conventional reinforcements. The design methodology for flexural components has already come in the form of codal specifications. But the design code has not been specified for beam-column joints reinforced internally with GFRP reinforcements. The present study is aimed to assess the behaviour of exterior beam-column joint reinforced internally with GFRP reinforcements numerically using the ABAQUS software for different properties of materials, loading and support conditions. The mechanical properties of these reinforcements are well documented and are utilized for modelling analysis. Although plenty of literature is available for predicting the joint shear strength of beam-column joints reinforced with conventional reinforcements numerically, but no such study is carried for GFRP reinforced beam-columns joints. As an attempt, modelling of beam-column joint with steel and with GFRP rebars is carried out using ABAQUS software. The behaviour of joints under monotonically increasing static and cyclic load conditions. Interpretation of all analytical findings with results obtained from experiments. The analysis and design of beam-column joints reinforced with GFRP reinforcements are carried out by strut and tie model. Strut and Tie models are based on the models for the steel reinforced beam-column joints. The resulting strut and tie model developed for the GFRP reinforced beam-column joints predicts joint shear strength. Joint shear strength values obtained from the experiments are compared with the analytical results for both the beam-column joints reinforced with steel and GFRP reinforcements. The joint shear strength predicted by the analytical tool ABAQUS is also validated with experimental results.

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“…For example, Mohamed et al (2014) studied glass FRP (GFRP)-reinforced concrete shear walls and concluded that properly designed and detailed GFRP-reinforced shear walls could reach their flexural capacities with no strength degradation and that the failure mode could be effectively controlled. Mady et al (2011) studied the seismic behavior of beam-column joints solely reinforced with GFRP bars and stirrups and concluded that the GFRP-reinforced joints could successfully sustain a 4.0% drift ratio without incurring significant damage.…”

Section: Introductionmentioning

confidence: 99%