Numerical simulation for seismic performance evaluation of fibre reinforced concrete beam–column sub-assemblages

Roehm, Constanze; Sasmal, Saptarshi; Novák, Balthasar; Ramanjaneyulu, K.

doi:10.1016/j.engstruct.2015.02.015

Cited by 24 publications

(2 citation statements)

References 22 publications

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“…Deng et al (2018) also reported that ECC jacketed columns failed in ductile modes and exhibited better plastic deformation and energy dissipation capacity. In addition to the experimental investigations, a few analytical studies (Zohrevand and Mirmiran 2010;Gencturk et al 2013;Roehm et al 2015;Wu et al 2018) were also conducted to propose concrete models considering the constitutive material properties of fiber reinforced concrete (FRC). Wu et al (2018) proposed uniaxial cyclic constitutive material models in compression and tension, followed by a numerical modeling technique to simulate short column ECC members using OpenSees (Mazzoni et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Behavior of Short Columns Constructed using Engineered Cementitious Composites under Seismic Loads

Basha

Lian

Hou

et al. 2021

Preprint

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The present research reports the application of engineered cementitious composites (ECC) as an alternative to conventional concrete to improve the brittle shear behavior of short columns. Experimental and finite element investigation was conducted by testing five reinforced engineered cementitious composite (RECC) concrete columns (half-scale specimens) and one control reinforced concrete (RC) specimen for different shear-span and transverse reinforcement ratios under cyclic lateral loads. RECC specimens with higher shear-span and transverse reinforcement ratios demonstrated a significant effect on the column shear behavior by improving ductility (>5), energy dissipation capacity (1.2 to 4.1 times RC specimen), gradual strength degradation (ultimate drift >3.4%), and altering the failure mode. The self-confinement effect of ECC fibers maintained the integrity in the post-peak region and reserved the transmission of stress through fibers without noticeable degradation in strength. Finite element modelling of RECC specimens was carried out by adopting simplified constitutive material models. It was apprehended that the model simulated the global response (strength and stiffness) with an accuracy of about 95%, and captured the shear and flexure crack patterns reasonably well.

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Section: Introductionmentioning

confidence: 99%

Behavior of Short Columns Constructed using Engineered Cementitious Composites under Seismic Loads

Basha

Lian

Hou

et al. 2021

Preprint

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“…Furthermore, the behavior of the beam-to-column connection is very complex and several parameters (e.g., axial load ratio, reinforcing details, concrete strength, etc.) have significant influences on its seismic performance; it is impractical to fully investigate all parameters through a limited number of experiments [11]. Therefore, numerical simulation has become a much needed means for the quantification of the influence of the underlying parameters, as well as further development of the design methodologies.…”

Section: Introductionmentioning

confidence: 99%

Finite element modelling approach for precast reinforced concrete beam-to-column connections under cyclic loading

Feng

2018

Engineering Structures

104

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In this paper, a finite element modelling approach is developed for the analysis of the cyclic behavior of precast beamto-column connections. In particular, the modelling takes into account the compression-softening of concrete, the bond-slip effect in the critical regions and the representation of the post-cast concrete interface. A newly developed softened damage-plasticity model, which can reproduce the typical cyclic behavior of reinforced concrete, is adopted for concrete. Meanwhile, to reflect the significant bond-slip effect between concrete and reinforcement bars, the M-P stress-strain model is modified to account for the slippage by assuming the bar strain is the sum of the bar deformation and the slip, while the anchorage slip is theoretically derived and validated through benchmarking the pull-out tests. Additionally, a concrete layer between the precast concrete and the cast-in-situ concrete is incorporated to reflect the features of the interface. The proposed numerical modelling approach is validated through simulation of both interior and exterior precast beam-to-column connection tests. The validated models are subsequently employed to investigate the influences of key factors such as the compression-softening and the bond-slip effect on the analysis of the cyclic behavior of the precast beam-to-column connections. Results demonstrate that the proposed model is capable of reproducing the typical behavior of precast beam-to-column connections and can serve as an effective tool for the seismic performance analysis and investigation of design parameters of precast connections.

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Effect of Cross-Section Shape on RC Specimen’s Behavior Under Asymmetrical Impact Loading

Al-Bukhaiti

Liu

Zhao

et al. 2023

Lecture Notes in Civil Engineering

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By applying asymmetrical lateral impact forces on RC specimens, the specimens’ cross-sectional shape is analyzed. The effectiveness of the RC specimens’ resistance to impact was examined using a drop hammer. Performing research on the factors that led to the failure of various RC specimen shapes and the dynamic responses they exhibited. In the experiment, eight circular and square specimens were used. Includes the method of failure, the impact force, and the deflection time history. The findings point to shear fractures between the point of impact and the adjacent support. The right side of the impact point has suffered significant damage, and the shear tests on all specimens failed. The peak impact force that square specimens can bear may be greater than circular ones. Protecting the concrete core and reducing maximum deflection are benefits of using a square specimen. When the ratio of stirrups is raised, there is only a little variation in the square specimen’s damage range. This may cause a slight reduction in damage, but it is not significant. The plateau force of a circular specimen can be increased, but only a little. An increase in the stirrup ratio may increase energy use.

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Numerical simulation for seismic performance evaluation of fibre reinforced concrete beam–column sub-assemblages

Cited by 24 publications

References 22 publications

Behavior of Short Columns Constructed using Engineered Cementitious Composites under Seismic Loads

Behavior of Short Columns Constructed using Engineered Cementitious Composites under Seismic Loads

Finite element modelling approach for precast reinforced concrete beam-to-column connections under cyclic loading

Effect of Cross-Section Shape on RC Specimen’s Behavior Under Asymmetrical Impact Loading

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