Behavior of RC Eccentric Corner Beam-Column Joint under Cyclic Loading: An Experimental Work

Basha, Ali; Fayed, Sabry

doi:10.28991/cej-2019-03091245

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…Experimental programs [27,32,35] allowed for the assessment of the main parameters that govern the ultimate behavior of RC joints. The experimental joint database [79][80][81] indicates the typical failure modes of RC joints. The experimental programs refer to a significant number of RC joints with different geometries, assessing the (usually cyclic) load levels pushing the joint to failure.…”

Section: Analytical Modelmentioning

confidence: 99%

Unified Simplified Capacity Model for Beam-Column Joints into RC Moment Resisting Frame

Ramaglia

Lignola²,

Fabbrocino³

et al. 2022

Applied Sciences

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Seismic vulnerability of reinforced concrete (RC) buildings is strongly influenced by beam-column joints. Horizontal and vertical structural members converge in beam-column joints, as extremely delimited areas where the internal forces in concrete core and reinforcing bars have elevated stress gradients. In order to fully understand the seismic behavior of RC buildings and the related failures of T- and X-shaped beam-column joints (external corner and internal-positioned), an analytical model of RC joint behavior is proposed in a unified and simplified way. The equilibrium equations of cracked joint portions allow the assessment of internal stresses’ evolution at increasing values of column shear forces. In this way, the strength hierarchy is evaluated in terms of capacity for the different potential failure modes. This can drive, as a useful tool for designers, the design of new efficient structures or the assessment of existing ones to occur, with subsequent interventions to move an initial undesired failure mode to a more suitable one. Nearly 500 experimental results of tests available in the literature are compared with the analytical predictions of the proposed model.

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Section: Analytical Modelmentioning

confidence: 99%

Unified Simplified Capacity Model for Beam-Column Joints into RC Moment Resisting Frame

Ramaglia

Lignola²,

Fabbrocino³

et al. 2022

Applied Sciences

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“…Fayed et al [18] investigated the behaviour of 3D constructions that included BCCs. The behaviour of structural components was examined in studies [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Seismic Resistance of RC Corner Eccentric Beam-Column Sub-assemblages

Fayed

asran

EL-Esnawi

et al. 2022

Journal of Engineering Research

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An experimental investigation studied performance of Scorner beam-column connection (BCC) under cyclic loading. Each BCC consisted of upper, lower column and two beams; one of them was free end (A) while the other was fixed end (B). The cyclic loading was applied on the end of beam (A) while the beam (B) was unloaded and subjected to torsion stresses due to fixation. Two variables were investigated. The first is the eccentricity of the beam about column edge while the second is the effect of stirrup joint configuration on BCC under cyclic loading. All BCCs were tested under reversible fourteen cycles. The vertical displacement at the free end of the beam (A), horizontal sway at mid height of the column, crack and ultimate loads were observed in details at each cycle. The findings noticed that the increase of stirrup length in the connection decreased the deflection at the same level of the load. The ultimate load of specimen, which was shifted by 25mm, was less than the ultimate load of specimen, without shift, by 24%.When the joint stirrup was extended outside the column core by 50 mm in specimen Sp2, the capacity of the connection increased.

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“…Sikadur 30 is a popular epoxy glue for connecting exterior plates to concrete [19]. The behaviour of structural components was examined in studies [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Effect of Aluminum Alloy Sheets on structural behaviour of RC Beams

Fayed

2022

Journal of Contemporary Technology and Applied Engineering

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The most current used technology for strengthening reinforced concrete (RC) beams is aluminum plate (AP). The use of AP to strengthen RC beams was investigated in this study. The experimental program included twenty-five RC beams (1/5 scale), with 14 and 11 beams strengthened in shear and flexure, respectively. All beams were the same size. All beams were subjected to four-point bending flexural tests. Various AP-based strengthening approaches were used. To improve shear strength, APs were glued vertically, inclined by 45 0 degrees, diagonally, and horizontally on the beams' sides (SS). The effect of AP pitch, height, and amount was investigated. APs of varying length, number, and pitch were agglutinated at the beam soffits to improve flexure strength (FS). All APs improved shear and flexure capabilities, while some of them modified the failure mode.

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Behavior of RC Eccentric Corner Beam-Column Joint under Cyclic Loading: An Experimental Work

Cited by 7 publications

References 8 publications

Unified Simplified Capacity Model for Beam-Column Joints into RC Moment Resisting Frame

Unified Simplified Capacity Model for Beam-Column Joints into RC Moment Resisting Frame

Seismic Resistance of RC Corner Eccentric Beam-Column Sub-assemblages

Effect of Aluminum Alloy Sheets on structural behaviour of RC Beams

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