Numerical Analysis on Flexural Behavior of Steel Fiber-Reinforced LWAC Beams Reinforced with GFRP Bars

Sun, Yi; Liu, Yang; Liu, Xi; Lu, Haodan

doi:10.3390/app9235128

Cited by 11 publications

(5 citation statements)

References 26 publications

(36 reference statements)

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“…Considering the progressive damage and strength degradation under cycle loads, the constitutive model of the steel bar is depicted in Figure 8, where 􏽥 ε pl 0 was the plastic strain corresponding to the damage initiation point, while 􏽥 ε pl f was defined as a value that almost equals to zero, such as 0.00001 [40], by which the strength and stiffness degradation behavior up to failure could be simulated. 9.…”

Section: Modelling Of Steel Barsmentioning

confidence: 99%

Seismic Performance and Finite Element Analysis of Reinforced Concrete Frames Considering a Masonry-Infilled Wall

Liu

2022

Advances in Materials Science and Engineering

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This study investigated the seismic performance of a 1/3 scale, three-story, and three-span RC frame subjected to static cyclic lateral loading. The failure process and mode were analyzed using the digital image correlation (DIC) method. Based on the test, finite element (FE) models were developed and verified. Using the proposed FE models, the parametric study was performed to investigate the influence of the opening rate, the position of infill walls, and the block strength on the seismic performance of the frame. Test results indicated that FE simulation results are correspondent to the testing results. The infilled wall increased the horizontal bearing capacity of the structure and the energy dissipation capacity. The opening masonry-infilled wall reduced the energy consumption capacity and the initial stiffness of the structure. Removing the infill walls on the first floor would change the failure mode of the frame. Improving the block strength could improve the bearing capacity of frames but has little effect on the energy dissipation capacity of the frame.

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Section: Modelling Of Steel Barsmentioning

confidence: 99%

Seismic Performance and Finite Element Analysis of Reinforced Concrete Frames Considering a Masonry-Infilled Wall

Liu

2022

Advances in Materials Science and Engineering

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“…To control the evolution of the yield surface, the effective stress function is applied, so that the material parameters can be conveniently calibrated. In the application of CDP model, the stress-strain law and damage law are thoroughly studied and discussed [21,22].…”

Section: Numerical Modelmentioning

confidence: 99%

Experimental and Numerical Study of Lattice Girder Composite Slabs with Monolithic Joint

Zhang

Liang

et al. 2021

Crystals

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This paper studies the behavior of lattice girder composite slabs with monolithic joint under bending. A full-scale experiment is performed to investigate the overall bending resistance, deflection and the final crack distribution of latticed girder composite slab under uniformly distributed load. A finite element model is given for the analysis of the latticed girder composite slabs. The effectiveness and correctness of the numerical simulations are verified against experimental results. The experimental and numerical studies conclude that the lattice girder composite slabs conform to the requirement of existing design codes. A parametric study is provided to investigate the effects of lattice girder with following conclusions: (a) the lattice girder significantly increases the stiffness of the slab when comparing with the precast slab without reinforcement crossing the interface; (b) the additional reinforcement near the joint slightly increases the stiffness and resistance, while it prevents damage near the joint.

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“…The findings demonstrate that carbon fiber-reinforced polymer (CFRP) jackets and external steel ties are considerably useful in comparison to the used retrofitting strategy, specifically concerning ductility and energy dissipation capacity. Sun et al [14] established a three-dimensional nonlinear finite element (FE) model using explicit algorithms to simulate the behavior of beams reinforced with glass fiber reinforced polymer (GFRP) bars cast using lightweight aggregate concrete (LWAC) with or without steel fibers and used a gradual damage model to simulate the rupture of GFRPs. The developed FE model was evaluated and the test results showed good consistency in terms of moment-biased response serviceability performance, final capacity, and failure mode.…”

Section: Of 17mentioning

confidence: 99%

Study on the Bending and Joint Performances of Reinforced Concrete Beams Using High-Strength Rebars

2021

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High-strength reinforcing bars have high yield strengths. It is possible to reduce the number of reinforcing bars placed in a building. Accordingly, as the amount of reinforcement decreases, the spacing of reinforcing bars increases, workability improves, and the construction period shortens. To evaluate the structural performance of high-strength reinforcing bars and the joint performance of high-strength threaded reinforcing bars, flexural performance tests were performed in this study on 12 beam members with the compressive strength of concrete, the yield strength of the tensile reinforcing bars, and the tensile reinforcing bar ratio as variables. The yield strengths of the tensile reinforcement and joint methods were used as variables, and joint performance tests were performed for six beam members. Based on this study, the foundation for using high-strength reinforcing bars with a design standard yield strength equal to 600 MPa was established. Accordingly, mechanical joints of high-strength threaded reinforcing bars (600 and 670 MPa) can be used. All six specimens were destroyed under more than the expected nominal strength. Lap splice caused brittle fractures because it was not reinforced in stirrup. Increases of 21% to 47% in the loads of specimens using a coupler and a lock nut were observed. Shape yield represents destruction—a section must ensure sufficient ductility after yielding. Therefore, a coupler and lock nut are effective.

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Numerical Analysis on Flexural Behavior of Steel Fiber-Reinforced LWAC Beams Reinforced with GFRP Bars

Cited by 11 publications

References 26 publications

Seismic Performance and Finite Element Analysis of Reinforced Concrete Frames Considering a Masonry-Infilled Wall

Seismic Performance and Finite Element Analysis of Reinforced Concrete Frames Considering a Masonry-Infilled Wall

Experimental and Numerical Study of Lattice Girder Composite Slabs with Monolithic Joint

Study on the Bending and Joint Performances of Reinforced Concrete Beams Using High-Strength Rebars

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