Structural behaviour of RC-ECC beam-column connections under quasi-static loading

Gul, Mian Asfahan Ali; Khan, Sajjad Wali; Ishaq, Muhammad; Khan, Fasih Ahmed; Shahzada, Khan; Gul, Mian Safwat Ali

doi:10.1016/j.mtcomm.2023.105763

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…PVA fiber not only can improve dynamic and material properties of fiber-reinforced concrete (Noushini et al, 2013(Noushini et al, , 2015, and also can improve the ductility and damping characteristics of reinforced concrete members (Fischer & Li, 2002). The performance enhancement in terms of stiffness, strength, ductility, and energy absorption capacity, which could be achieved by replacing concrete with the high-performance material ECC, different fiber-reinforced concrete (Gencturk et al, 2013;Gul et al, 2023;Parra-Montesinos & Chompreda, 2017;Saghafi et al, 2021;Said & Razak, 2016;Suryanto et al, 2022). In 2023, Sun et al first investigated the seismic performance of prefabricated concrete and prefabricated fiber-reinforced concrete (FRC) BCJs by the quasi-static tests (Sun et al, 2023a).…”

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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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: 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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“…The results show that compared with the RC column with all ECC materials in the plastic hinge area, the use of ECC material in the precast wrapped ECC column with different thicknesses is reduced by 44%, but its bearing capacity, ductility, and energy dissipation capacity have not decreased. Gul Mian Asfahan Ali [11] studied the repeated load test of the special anti-bending frame structure using ECC material in the beam-column joint. The test results show that the structure with ECC has significantly improved in ductility, bearing capacity, and energy dissipation.…”

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confidence: 99%

Seismic Response Analysis of Continuous Beam Bridges with Engineered Cementitious Composite (ECC) in Plastic Hinge Region

Yuan,

Xiong,

Jiang

et al. 2024

J. Phys.: Conf. Ser.

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This study investigates the seismic performance of potential plastic hinge regions in small and medium-sized bridges using Engineered Cementitious Composite (ECC) concrete. A 4×40m continuous beam bridge is used as an example, with time-history analysis conducted using the OpenSees finite element software, and the type of concrete material in the cross-section of the bridge pier’s plastic hinge region is varied to analyze the structural natural vibration characteristics and seismic responses of the bridge structure under earthquake action. The time-history analysis of seismic motion shows that after replacing the bridge pier’s plastic hinge region with ECC, the stiffness of the bridge pier significantly decreases, and the natural vibration period of the bridge increases. Under the action of longitudinal earthquakes, the energy dissipation capacity and seismic performance of the bridge pier increase with the increase in ECC content in the plastic hinge region at the bottom of the bridge pier. Furthermore, under earthquake action, the concrete at the edge of the cross-section using ordinary concrete throughout cracks under tension, while the tensile stress in the cross-sections using different proportions of ECC concrete remains the same and does not crack under tension, remaining elastic under compression, which also reflects the good seismic performance of ECC concrete.

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Study on the Axial Compressive Properties of the ECC-RC Composite Column

李

2024

HJCE

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Structural behaviour of RC-ECC beam-column connections under quasi-static loading

Cited by 4 publications

References 12 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

Seismic Response Analysis of Continuous Beam Bridges with Engineered Cementitious Composite (ECC) in Plastic Hinge Region

Study on the Axial Compressive Properties of the ECC-RC Composite Column

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