Seismic Performance of UHPFRC-Strengthened RC Beam–Column Joints Using Damage Plasticity Model—A Numerical Study

K. Sai Kubair; J. S. Kalyana Rama

doi:10.1007/978-981-16-4617-1_30

Seismic Performance of UHPFRC-Strengthened RC Beam–Column Joints Using Damage Plasticity Model—A Numerical Study

K. Sai Kubair, J. S. Kalyana Rama^*

^*Corresponding author for this work

Group Giovanardi

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

Abstract

The present study focuses on predicting the behavior of the reinforced concrete (RC) beam–column joints when subjected to seismic loads with the newly proposed concrete damage plasticity (CDP) model for modeling the behavior of concrete. ABAQUS/CAE is used to model the behavior of beam–column joint. Input parameters for the concrete damage plasticity model are adopted from the proposed model. Parametric studies are performed for studying the influence of variation of the dilation angle and eccentricity on the behavior of the beam–column joint when subjected to seismic loads. Ultra High-Performance Fiber Reinforced Concrete (UHPFRC) strip is used for strengthening the beam–column joint against seismic loads. The UHPFRC material is wrapped all along the beam–column joint as a layer for strengthening purposes. Three different thicknesses of UHPFRC strips are used for strengthening the beam–column joint to assess the maximum load-carrying capacity. Results indicated that the proposed CDP model is accurately predicting the behavior of the RC beam–column joint. It is observed that as the thickness of the strip increases, the resistance of the beam–column joint against seismic loads is also increased. It is also observed that the UHPFRC material is more ductile when compared with normal concrete.

Original language	English
Title of host publication	Recent Advances in Earthquake Engineering - Select Proceedings of VCDRR 2021
Editors	Sreevalsa Kolathayar, Siau Chen Chian
Publisher	Springer
Pages	371-383
Number of pages	13
ISBN (Print)	9789811646164
DOIs	https://doi.org/10.1007/978-981-16-4617-1_30
Publication status	Published - 2022
Event	Virtual Conference on Disaster Risk Reduction, VCDRR 2021 - Virtual, Online Duration: 15 Mar 2021 → 20 Mar 2021

Publication series

Name	Lecture Notes in Civil Engineering
Volume	175
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	Virtual Conference on Disaster Risk Reduction, VCDRR 2021
City	Virtual, Online
Period	15/03/21 → 20/03/21

Keywords

Beam–column joint
Damage plasticity
Strengthening
UHPFRC

Access to Document

10.1007/978-981-16-4617-1_30

Cite this

Sai Kubair, K., & Kalyana Rama, J. S. (2022). Seismic Performance of UHPFRC-Strengthened RC Beam–Column Joints Using Damage Plasticity Model—A Numerical Study. In S. Kolathayar, & S. C. Chian (Eds.), Recent Advances in Earthquake Engineering - Select Proceedings of VCDRR 2021 (pp. 371-383). (Lecture Notes in Civil Engineering; Vol. 175). Springer. https://doi.org/10.1007/978-981-16-4617-1_30

@inproceedings{b0eb93370a304a00923bd62e1161cb98,

title = "Seismic Performance of UHPFRC-Strengthened RC Beam–Column Joints Using Damage Plasticity Model—A Numerical Study",

abstract = "The present study focuses on predicting the behavior of the reinforced concrete (RC) beam–column joints when subjected to seismic loads with the newly proposed concrete damage plasticity (CDP) model for modeling the behavior of concrete. ABAQUS/CAE is used to model the behavior of beam–column joint. Input parameters for the concrete damage plasticity model are adopted from the proposed model. Parametric studies are performed for studying the influence of variation of the dilation angle and eccentricity on the behavior of the beam–column joint when subjected to seismic loads. Ultra High-Performance Fiber Reinforced Concrete (UHPFRC) strip is used for strengthening the beam–column joint against seismic loads. The UHPFRC material is wrapped all along the beam–column joint as a layer for strengthening purposes. Three different thicknesses of UHPFRC strips are used for strengthening the beam–column joint to assess the maximum load-carrying capacity. Results indicated that the proposed CDP model is accurately predicting the behavior of the RC beam–column joint. It is observed that as the thickness of the strip increases, the resistance of the beam–column joint against seismic loads is also increased. It is also observed that the UHPFRC material is more ductile when compared with normal concrete.",

keywords = "Beam–column joint, Damage plasticity, Strengthening, UHPFRC",

author = "{Sai Kubair}, K. and {Kalyana Rama}, {J. S.}",

year = "2022",

doi = "10.1007/978-981-16-4617-1_30",

language = "English",

isbn = "9789811646164",

series = "Lecture Notes in Civil Engineering",

publisher = "Springer",

pages = "371--383",

editor = "Sreevalsa Kolathayar and Chian, {Siau Chen}",

booktitle = "Recent Advances in Earthquake Engineering - Select Proceedings of VCDRR 2021",

note = "Virtual Conference on Disaster Risk Reduction, VCDRR 2021 ; Conference date: 15-03-2021 Through 20-03-2021",

}

Sai Kubair, K & Kalyana Rama, JS 2022, Seismic Performance of UHPFRC-Strengthened RC Beam–Column Joints Using Damage Plasticity Model—A Numerical Study. in S Kolathayar & SC Chian (eds), Recent Advances in Earthquake Engineering - Select Proceedings of VCDRR 2021. Lecture Notes in Civil Engineering, vol. 175, Springer, pp. 371-383, Virtual Conference on Disaster Risk Reduction, VCDRR 2021, Virtual, Online, 15/03/21. https://doi.org/10.1007/978-981-16-4617-1_30

Seismic Performance of UHPFRC-Strengthened RC Beam–Column Joints Using Damage Plasticity Model—A Numerical Study. / Sai Kubair, K.; Kalyana Rama, J. S.
Recent Advances in Earthquake Engineering - Select Proceedings of VCDRR 2021. ed. / Sreevalsa Kolathayar; Siau Chen Chian. Springer, 2022. p. 371-383 (Lecture Notes in Civil Engineering; Vol. 175).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Seismic Performance of UHPFRC-Strengthened RC Beam–Column Joints Using Damage Plasticity Model—A Numerical Study

AU - Sai Kubair, K.

AU - Kalyana Rama, J. S.

PY - 2022

Y1 - 2022

N2 - The present study focuses on predicting the behavior of the reinforced concrete (RC) beam–column joints when subjected to seismic loads with the newly proposed concrete damage plasticity (CDP) model for modeling the behavior of concrete. ABAQUS/CAE is used to model the behavior of beam–column joint. Input parameters for the concrete damage plasticity model are adopted from the proposed model. Parametric studies are performed for studying the influence of variation of the dilation angle and eccentricity on the behavior of the beam–column joint when subjected to seismic loads. Ultra High-Performance Fiber Reinforced Concrete (UHPFRC) strip is used for strengthening the beam–column joint against seismic loads. The UHPFRC material is wrapped all along the beam–column joint as a layer for strengthening purposes. Three different thicknesses of UHPFRC strips are used for strengthening the beam–column joint to assess the maximum load-carrying capacity. Results indicated that the proposed CDP model is accurately predicting the behavior of the RC beam–column joint. It is observed that as the thickness of the strip increases, the resistance of the beam–column joint against seismic loads is also increased. It is also observed that the UHPFRC material is more ductile when compared with normal concrete.

AB - The present study focuses on predicting the behavior of the reinforced concrete (RC) beam–column joints when subjected to seismic loads with the newly proposed concrete damage plasticity (CDP) model for modeling the behavior of concrete. ABAQUS/CAE is used to model the behavior of beam–column joint. Input parameters for the concrete damage plasticity model are adopted from the proposed model. Parametric studies are performed for studying the influence of variation of the dilation angle and eccentricity on the behavior of the beam–column joint when subjected to seismic loads. Ultra High-Performance Fiber Reinforced Concrete (UHPFRC) strip is used for strengthening the beam–column joint against seismic loads. The UHPFRC material is wrapped all along the beam–column joint as a layer for strengthening purposes. Three different thicknesses of UHPFRC strips are used for strengthening the beam–column joint to assess the maximum load-carrying capacity. Results indicated that the proposed CDP model is accurately predicting the behavior of the RC beam–column joint. It is observed that as the thickness of the strip increases, the resistance of the beam–column joint against seismic loads is also increased. It is also observed that the UHPFRC material is more ductile when compared with normal concrete.

KW - Beam–column joint

KW - Damage plasticity

KW - Strengthening

KW - UHPFRC

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DO - 10.1007/978-981-16-4617-1_30

M3 - Conference contribution

AN - SCOPUS:85116347477

SN - 9789811646164

T3 - Lecture Notes in Civil Engineering

SP - 371

EP - 383

BT - Recent Advances in Earthquake Engineering - Select Proceedings of VCDRR 2021

A2 - Kolathayar, Sreevalsa

A2 - Chian, Siau Chen

PB - Springer

T2 - Virtual Conference on Disaster Risk Reduction, VCDRR 2021

Y2 - 15 March 2021 through 20 March 2021

ER -

Seismic Performance of UHPFRC-Strengthened RC Beam–Column Joints Using Damage Plasticity Model—A Numerical Study

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Keywords

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