Behavior of corrosion damaged non-seismically and seismically detailed reinforced concrete beam-column sub-assemblages under cyclic loading

Dangwal, Shubham; Singh, Heaven

doi:10.1016/j.engfailanal.2023.107135

Cited by 12 publications

(6 citation statements)

References 37 publications

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“…1. The experimental results proved that FRC can improve the seismic behaviors of prefabricated BCJs, which was consistent with the conclusion in the references (Dangwal & Singh, 2023;Noushini et al, 2013Noushini et al, , 2015Parra-Montesinos & Chompreda, 2017;Saghafi et al, 2021;Zhuang et al, 2022a).…”

Section: Introductionsupporting

confidence: 91%

“…Experimental investigations have shown that the displacement ductility, energy dissipation capacity and shear resistance capacity of FRC members are good. Dangwal and Singh (Dangwal & Singh, 2023) proved experimentally that high strength fiber-reinforced concrete (HSFRC) can improve the bearing capacity, stiffness and energy dissipation capacity of BCJs. Qian et al (Qian et al, 2023) investigated an innovative re-centering shape memory alloy bars and engineered cementitious composites (SMA-ECC) based prefabricated beam-column joints and found that the specimen joints can undergo large displacement with superior self-centering and energy dissipation capacities.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation Study on the Seismic Performance of Prefabricated Fiber-Reinforced Concrete Beam–Column Joints With Grouted Sleeve Connections

Zhuang,

Cheng,

Fei

et al. 2024

Int J Concr Struct Mater

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Based on the available experimental data, fiber models for four prefabricated fiber-reinforced concrete beam–column joint specimens with grouted sleeve connections are first developed in OpenSees software. Then, the simulated seismic performance of the specimens is compared with the experimental results. Finally, the effects of axial load ratio and shear-to-span ratio on the seismic performance of the specimens are further investigated numerically. The results indicate that Concrete02 material model and Reinforcing Steel material model can accurately simulate the constitutive relationship of concrete and reinforcing steel, respectively; the beam–column joint elements can accurately simulate different damage behaviors of the joint zone. Fiber-reinforced concrete can significantly improve the seismic performance of the specimens. The relative errors of the simulated seismic performance indexes are about 15%. It is recommended that the optimum value of shear-to-span ratio for prefabricated FRC BCJs is 2.0–2.5. The effect of axial load ratio on the seismic behavior of PBCJs-CM is very small, and can be negligible in the case that the prefabricated FRC BCJs has a moderate value of shear-to-span ratio. The fiber model developed in this article can provide a numerical simulation basis for subsequent studies of prefabricated fiber-reinforced concrete beam–column joint specimens with grouted sleeve connections.

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Section: Introductionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Numerical Simulation Study on the Seismic Performance of Prefabricated Fiber-Reinforced Concrete Beam–Column Joints With Grouted Sleeve Connections

Zhuang,

Cheng,

Fei

et al. 2024

Int J Concr Struct Mater

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“…Pitting occurs when the damage exists in relatively small and spatially separated areas. The result is significantly higher stress concentration at the defective sites, leading to brittle failure (Dangwal and Singh, 2023). The safety and serviceability of RC structures are therefore compromised when the process develops.…”

Section: Introductionmentioning

confidence: 99%

“…The current issue and full text archive of this journal is available on Emerald Insight at: https://www.emerald.com/insight/1757-9864.htm (Dangwal and Singh, 2023). The safety and serviceability of RC structures are therefore compromised when the process develops.…”

mentioning

confidence: 99%

Effect of different material constitutive models in estimating the residual moment capacity of RC beams subjected to natural corrosion

Atienza,

Malabanan,

Aragoncillo

et al. 2024

IJSI

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PurposeExisting deterministic models that predict the capacity of corroded reinforced concrete (RC) beams have limited applicability because they were based on accelerated tests that induce general corrosion. This research gap was addressed by performing a combined numerical and statistical analysis on RC beams, subjected to natural corrosion, to achieve a much better forecast.Design/methodology/approachData of 42 naturally corroded beams were collected from the literature and analyzed numerically. Four constitutive models and their combinations were considered: the elastic-semi-plastic and elastic-perfectly-plastic models for steel, and two tensile models for concrete with and without the post-cracking stresses. Meanwhile, Popovics’ model was used to describe the behavior of concrete under compression. Corrosion coefficients were developed as functions of corrosion degree and beam parameters through linear regression analysis to fit the theoretical moment capacities with test data. The performance of the coefficients derived from different combinations of constitutive laws was then compared and validated.FindingsThe results showed that the highest accuracy (R2 = 0.90) was achieved when the tensile response of concrete was modeled without the residual stresses after cracking and the steel was analyzed as an elastic-perfectly-plastic material. The proposed procedure and regression model also showed reasonable agreement with experimental data, even performing better than the current models derived from accelerated tests and traditional procedures.Originality/valueThis study presents a simple but reliable approach for quantifying the capacity of RC beams under more realistic conditions than previously reported. This method is simple and requires only a few variables to be employed. Civil engineers can use it to obtain a quick and rough estimate of the structural condition of corroding RC beams.

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“…The above studies indicate that extended plate connections can be used in steel frames in high-seismic regions because they possess sufficient strength, stiffness, ductility, and energy dissipation capacity. This prevents bolt fracture-induced brittle failure by allowing other more ductile components to locally failure [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Evolution characteristics and performance evaluation of extended end-plate joints with single and double side connections under cyclic loading

Luo,

Sun,

et al. 2024

Heliyon

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Behavior of corrosion damaged non-seismically and seismically detailed reinforced concrete beam-column sub-assemblages under cyclic loading

Cited by 12 publications

References 37 publications

Numerical Simulation Study on the Seismic Performance of Prefabricated Fiber-Reinforced Concrete Beam–Column Joints With Grouted Sleeve Connections

Numerical Simulation Study on the Seismic Performance of Prefabricated Fiber-Reinforced Concrete Beam–Column Joints With Grouted Sleeve Connections

Effect of different material constitutive models in estimating the residual moment capacity of RC beams subjected to natural corrosion

Evolution characteristics and performance evaluation of extended end-plate joints with single and double side connections under cyclic loading

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