The key factors affecting the behavior of reinforced concrete beam–column joints under cyclic load

Nadir, Wissam; Ali, Ammar Yaser

doi:10.1007/s42107-022-00464-6

Cited by 10 publications

(2 citation statements)

References 50 publications

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“…A series of tests [1,2,34,35,36,37] highlight vulnerability of joint panel zone during seismic activity. It is reported that, absence of capacity design and insufficient quantity of 1382 confining and longitudinal reinforcement along with inadequate anchorage detailing are the primary causes of this vulnerability.…”

Section: Performance Of Ill-detailed Connectionsmentioning

confidence: 99%

Bi-diaphragm elastoplastic haunch retrofit solution for ill-detailed RC beam-column joints

Gujar¹,

Pore²

2023

Res. Eng. Struct. Mater.

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DisclaimerAll the opinions and statements expressed in the papers are on the responsibility of author(s) and are not to be regarded as those of the journal of Research on Engineering Structures and Materials (RESM) organization or related parties. The publishers make no warranty, explicit or implied, or make any representation with respect to the contents of any article will be complete or accurate or up to date. The accuracy of any instructions, equations, or other information should be independently verified. The publisher and related parties shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with use of the information given in the journal or related means.Published articles are freely available to users under the terms of Creative Commons Attribution -NonCommercial 4.0 International Public License, as currently displayed at here (the "CC BY -NC").

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Section: Performance Of Ill-detailed Connectionsmentioning

confidence: 99%

Bi-diaphragm elastoplastic haunch retrofit solution for ill-detailed RC beam-column joints

Gujar¹,

Pore²

2023

Res. Eng. Struct. Mater.

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“…The previous earthquake reports indicated that the external beam-column joints show vulnerability compared with the internal beam-column joint [9]. This is because of the low confinement provided by transverse beams.…”

Section: Introductionmentioning

confidence: 99%

Structural behavior of ultra-high performance concrete corner beam-column joint under bidirectional loading

Nadir

Ali

2023

Preprint

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In the past few decades, extensive experimental research has been focused on studying the performance of beam-column joints under cyclic load due to their involvement in the collapse of several reinforced concrete structures during earthquakes. However, the behavior of beam-column joints under monotonic load, especially bidirectional monotonic load, has not been well-described. This study aims to enhance the performance of reinforced concrete corner beam-column joints subjected to bidirectional monotonic loads by utilizing ultra-high performance concrete (UHPC). Four scaled RC corner beam-column joints were constructed, with two made entirely of normal strength concrete (NSC) and the other two utilizing UHPC in the joint region. The variables were the material and the spacing of transverse reinforcement in the joint region. In all tested specimens, the transverse reinforcement in the joint region was eliminated to reduce the congestion of steel reinforcement in this region. The results indicate that utilizing UHPC in the joint region significantly improves the performance of the corner beam-column joint. The main result was a shift in the failure mode of the tested specimen from brittle failure caused by joint shear failure to flexural failure by the development of a plastic hinge at the joint-beam interface. Additionally, the UHPC joint showed superior performance in terms of joint shear capacity, load carrying capacity, energy absorption, and damage tolerance, despite the removal of transverse reinforcement in the joint core. Furthermore, using UHPC in the joint region allows for a reduction in the transverse reinforcement in beams and columns, thus eliminating the congestion of steel reinforcement in the joint region.

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Estimating the joint shear strength of exterior beam–column joints using artificial neural networks via experimental results

Harith,

Nadir,

Salah

et al. 2024

Innov. Infrastruct. Solut.

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The key factors affecting the behavior of reinforced concrete beam–column joints under cyclic load

Cited by 10 publications

References 50 publications

Bi-diaphragm elastoplastic haunch retrofit solution for ill-detailed RC beam-column joints

Bi-diaphragm elastoplastic haunch retrofit solution for ill-detailed RC beam-column joints

Structural behavior of ultra-high performance concrete corner beam-column joint under bidirectional loading

Estimating the joint shear strength of exterior beam–column joints using artificial neural networks via experimental results

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