Multispring Hinge Element for Reinforced Concrete Frame Analysis

Peng, Brian H. H.; Dhakal, Rajesh; Fenwick, R. C.; Carr, Athol J.; Bull, D.K.

doi:10.1061/(asce)st.1943-541x.0000690

Cited by 11 publications

(3 citation statements)

References 18 publications

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“…At drift ratio of 3.5%, the experiment and FEA showed an elongation of about 4% and 3% of the beam depth, respectively. This is comparable to elongation reported in literature based on cyclic tests and numerical analyses of conventionally vibrated RC beams and frames [32][33][34][35][36].…”

Section: Figure 9: Fea Vs Experimental Results Of Bcj1 With Spring Column Basesupporting

confidence: 87%

Cyclic response analysis of high-strength self-compacting concrete beam-column joints

Ashtiani¹,

Dhakal

Scott

2018

BNZSEE

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In this paper, finite element analysis software “DIANA” is implemented to simulate quasi-static cyclic loading test results of three full-scale beam-column joints cast with high-strength self-compacting concrete (HSSCC). The specimens were designed according to the New Zealand concrete standard (NZS3101 2006). Material models for concrete and steel were calibrated based on the physical characteristics of the materials derived either from laboratory tests or using expressions available in literature. Two-dimensional curved-shell elements were used in modelling the specimens. As the specimens were designed following the code requirements for seismic actions, bond between the reinforcement and concrete was assumed as perfect. In order to obtain a more representative prediction, both the longitudinal and transverse reinforcement were modelled in their actual locations. Pushover analyses were first conducted to check the mesh sensitivity; after which the modelled specimens were subjected to reversed cyclic loading histories applied in the experimental tests. Seismically important response parameters such as damping, stiffness, concrete and steel contributions in the joint shear resistance, joint shear deformation, strain development in the joint stirrups, elongation of the plastic hinge zone, development of compressive stress, and cracking pattern were extracted from the analytical predictions and compared to the experimental results. It was found that the adopted modelling and analysis approach was capable of predicting cyclic performance of HSSCC beam-column subassemblies with reasonable accuracy.

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Section: Figure 9: Fea Vs Experimental Results Of Bcj1 With Spring Column Basesupporting

confidence: 87%

Cyclic response analysis of high-strength self-compacting concrete beam-column joints

Ashtiani¹,

Dhakal

Scott

2018

BNZSEE

Self Cite

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“…author) b) Dept. of Civil and Environmental Engineering, Washington State University, Pullman, WA and system level remains an area of active research (Encina et al 2016, Peng et al 2013. Elongation models should be able to account for varying axial, shear, and flexural loads, but only limited test programs providing such data are currently available.…”

Section: Introductionmentioning

confidence: 99%

“…Researchers have been aware of plastic hinge elongation for several decades (Fenwick and Fong 1979), and moment frame buildings have exhibited severe damage due to displacement compatibility issues between elongating beams, slabs, and columns during recent earthquakes in New Zealand (Henry et al 2017, Kam et al 2011). However, the ability to model the effects of elongation at both the component and system level remains an area of active research (Encina et al 2016, Peng et al 2013). Elongation models should be able to account for varying axial, shear, and flexural loads, but only limited test programs providing such data are currently available.…”

Section: Introductionmentioning

confidence: 99%

Testing of 17 Identical Ductile Reinforced Concrete Beams with Various Loading Protocols and Boundary Conditions

et al. 2018

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A set of tests on 17 large-scale, nominally identical, beam specimens with variations in loading protocol, loading rate, and restraint to axial elongation are described. Three specimens were also repaired by epoxy injection following an initial damaging earthquake loading. This paper provides a detailed description of the test program, and the corresponding data are made available at Design-Safe (DOI: 10.17603/DS2SQ2K). While the primary goal of the test program was to improve the state of knowledge regarding the post-earthquake residual capacity of reinforced concrete plastic hinges in beams, the data are useful for modeling approaches that consider loading rate, plastic hinge elongation, cyclic degradation, and flexure–shear–axial interaction, in addition to investigating the effectiveness of post-earthquake repair techniques by epoxy injection of cracks.

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Nonlinear cyclic behaviour of high-strength ductile RC walls: Experimental and numerical investigations

Tripathi

Dhakal

Dashti

2020

Engineering Structures

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Multispring Hinge Element for Reinforced Concrete Frame Analysis

Cited by 11 publications

References 18 publications

Cyclic response analysis of high-strength self-compacting concrete beam-column joints

Cyclic response analysis of high-strength self-compacting concrete beam-column joints

Testing of 17 Identical Ductile Reinforced Concrete Beams with Various Loading Protocols and Boundary Conditions

Nonlinear cyclic behaviour of high-strength ductile RC walls: Experimental and numerical investigations

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