Numerical simulation of the shear capacity of bolted side-plated RC beams

Li, L.Z.; Wu, Zhenli; Yu, Jiangtao; Wang, X.; Zhang, J.X.; Lu, Zheng

doi:10.1016/j.engstruct.2018.06.003

Cited by 22 publications

(14 citation statements)

References 34 publications

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“…The comparison results showed a satisfactory agreement, which indicated that the proposed FEM model was reliable to use in conducting a parametric study on the shear performance of BSP beams. Considering the similarity, only the failure modes and load-deflection curves of the specimens Control and P3B2 are presented herein for simplicity (as shown in Figures 6 and 7); more details can be referred in to the literature of Li et al [32] presented herein for simplicity (as shown in Figures 6 and 7); more details can be referred in to the literature of Li et al [32] As is shown in Figure 7, the stiffness was characterized by the secant modulus Ke at the point P = 0.75 Pu (where Pu is the ultimate shear load), while δu was defined as maximum mid-span deflection corresponding to Pu and the modulus of toughness Ut (i.e., the area under the load-deflection curve) was adopted to quantify the amount of energy that the specimen absorbed in the whole loading process. The comparison between the experimental and numerical results (shown in Table 1) showed that the maximum errors of Pu and δu were 6.7% and 13.7%, respectively.…”

Section: Comparison Between Experimental and Numerical Resultsmentioning

confidence: 99%

“…literature of Li et al [32] As is shown in Figure 7, the stiffness was characterized by the secant modulus Ke at the point P = 0.75 Pu (where Pu is the ultimate shear load), while δu was defined as maximum mid-span deflection corresponding to Pu and the modulus of toughness Ut (i.e., the area under the load-deflection curve) was adopted to quantify the amount of energy that the specimen absorbed in the whole loading process. The comparison between the experimental and numerical results (shown in Table 1) showed that the maximum errors of Pu and δu were 6.7% and 13.7%, respectively.…”

Section: Diagonal Crackmentioning

confidence: 95%

“…The finite element method (FEM) program OpenSees was used by Li et al [32] to simulate the shear performance of BSP beams, as shown in Figure 5. Concrete in the RC beams was simulated by the multi-layer shell element ShellMITC4 with 2-dimensional constitutive model PlaneStressUserMaterial, and the concrete mechanical properties were simulated by the smeared crack model [33].…”

Section: Numerical Modellingmentioning

confidence: 99%

See 2 more Smart Citations

The Use of Bolted Side Plates for Shear Strengthening of RC Beams: A Review

Liu

2018

Sustainability

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Reinforced concrete (RC) beams may need to be strengthened because of material deterioration, structure aging, change of building function, defective design, and the decrease of structural reliability caused by accidental disasters such as earthquake and fire. Thus, the retrofitting of RC beams has become a crucial problem, especially for the old buildings constructed before 1980 in mainland China. A variety of studies have proven that the bolted side-plating (BSP) method is feasible and effective for rehabilitating RC beams in existing buildings and infrastructures. The aim of this paper is mainly to review the previous studies conducted by the authors on the shear performance of reinforced concrete (RC) beams retrofitted using the BSP technique, including experimental, theoretical, and numerical studies.

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Section: Comparison Between Experimental and Numerical Resultsmentioning

confidence: 99%

Section: Diagonal Crackmentioning

confidence: 95%

Section: Numerical Modellingmentioning

confidence: 99%

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The Use of Bolted Side Plates for Shear Strengthening of RC Beams: A Review

Liu

2018

Sustainability

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“…It is also known to have high stiffness. In general, the plates are bonded/glued to the beams and attached at the compression and tension zones of the RC beams to provide a locking mechanism that will increase the load-bearing capacity and ductility of the section in order to avoid brittle failure [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

An Experimental and Numerical Study on the Flexural Performance of Over-Reinforced Concrete Beam Strengthening with Bolted-Compression Steel Plates: Part II

et al. 2019

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This study presents an experimental investigation and finite element modelling (FEM) of the behavior of over-reinforced simply-supported beams developed under compression with a bolt-compression steel plate (BCSP) system. This study aims to avoid brittle failure in the compression zone by improving the strength, strain, and energy absorption (EA) of the over-reinforced beam. The experimental program consists of a control beam (CB) and three BCSP beams. With a fixed steel plate length of 1100 mm, the thicknesses of the steel plates vary at the top section. The adopted plate thicknesses were 6 mm, 10 mm, and 15 mm, denoted as BCSP-6, BCSP-10, and BCSP-15, respectively. The bolt arrangement was used to implement the bonding behavior between the concrete and the steel plate when casting. These plates were tested under flexural-static loading (four-point bending). The load-deflection and EA of the beams were determined experimentally. It was observed that the load capacity of the BCSP beams was improved by an increase in plate thickness. The increase in load capacity ranged from 73.7% to 149% of the load capacity of the control beam. The EA was improved up to about 247.5% in comparison with the control beam. There was also an improvement in the crack patterns and failure modes. It was concluded that the developed system has a great effect on the parameters studied. Moreover, the prediction of the concrete failure characteristics by the FE models, using the ABAQUS software package, was comparable with the values determined via the experimental procedures. Hence, the FE models were proven to accurately predict the concrete failure characteristics.

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“…External steel jacket anchored by bolts [3][4][5][6][7][8] was proved to be an effective way to enhance flexural strength and ductility of concrete members. However, the bolted steel plates were prone to fail in local buckling and thus cannot be introduced to the strengthening of masonry walls [9].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Seismic Strengthening of Confined Masonry Walls Using RPC

Wang

et al. 2019

Advances in Materials Science and Engineering

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Masonry structures without effective reinforcement are vulnerable to seismic excitation. An innovative strengthening technique was proposed for damaged and undamaged masonry walls. Six confined masonry units with two aspect ratios were tested under in-plane lateral cyclic loading, which consisted of two control walls, two original walls strengthened with reactive powder concrete (RPC-1), and two damaged walls repaired with RPC (RPC-2). The results of the specimens retrofitted with RPC demonstrated that the proposed technique significantly enhanced the seismic performance of masonry walls in terms of lateral strength, ductility, and energy dissipation. Furthermore, the two repaired specimens had a better distributed cracking pattern than the two strengthened specimens. The analysis of the results leads to a better understanding of the effect and mechanism of RPC seismic retrofitting for confined masonry walls.

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Numerical simulation of the shear capacity of bolted side-plated RC beams

Cited by 22 publications

References 34 publications

The Use of Bolted Side Plates for Shear Strengthening of RC Beams: A Review

The Use of Bolted Side Plates for Shear Strengthening of RC Beams: A Review

An Experimental and Numerical Study on the Flexural Performance of Over-Reinforced Concrete Beam Strengthening with Bolted-Compression Steel Plates: Part II

Experimental Study on Seismic Strengthening of Confined Masonry Walls Using RPC

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