Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model

Liu Baichuan; Hu Weibing

doi:doi:10.11648/j.sd.20210906.16

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Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model

Liu Baichuan, Hu Weibing

Published in Science Discovery (Volume 9, Issue 6)

Received: 14 October 2021 Accepted: 8 November 2021 Published: 12 November 2021

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Abstract

Based on the test data of reinforced concrete (RC) columns published in Pacific Earthquake Engineering Research Center (PEER) database, three existing typical seismic damage models are studied, and the distribution law of damage index of the same member calculated by energy dissipation model, stiffness degradation model and Park-Ang model are summarized. The relative stiffness with the yield stiffness as the reference is constructed, and the stiffness model is improved to solve the problems that the original stiffness model is too sensitive to the initial damage and the calculation accuracy is not high. The data show that the new model has high accuracy in calculating the damage index of components under earthquake. Comparing the damage index calculated by the model with the apparent damage phenomenon of each stage of the specimen, and comparing the damage development index of different models, it is found that the stiffness model is the most accurate to evaluate the damage. The damage grade evaluation standard based on stiffness degradation is proposed, and the damage indexes under three different damage states of Concrete Cracking, Significant Concrete Spalling and Long Bar Buckling are analyzed. The results show that the damage index calculated by the damage assessment method based on stiffness degradation has good correlation under different damage states.

Published in	Science Discovery (Volume 9, Issue 6)
DOI	10.11648/j.sd.20210906.16
Page(s)	308-313
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Relative Stiffness, Damage State, Stiffness Degradation,Damage Assessment,Contrastive Study

References

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[2]	王东升,冯启民,王国新.考虑低周疲劳寿命的改进Park-Ang地震损伤模型[J].土木工程学报,2004(11):41-49。
[3]	付国,刘伯权,邢国华.基于有效耗能的改进Park-Ang双参数损伤模型及其计算研究[J].工程力学,2013,30(07):84-90。
[4]	罗文文,李英民,韩军.考虑加载路径影响的改进Park-Ang损伤模型[J].工程力学,2014,31(07):112-118+128。
[5]	Ghobarah A, Abou-Elfath H, Biddah A. Response‐based damage assessment of structures [J]. Earthquake Engineering & Structural Dynamics, 1999, 28 (1): 79-104.
[6]	李磊,王卓涵,张艺欣,郑山锁.混凝土结构中考虑滑移效应的钢筋本构模型研究[J].工程力学,2020,37(03):88-97。
[7]	李磊,罗光喜,王卓涵,郑山锁.震损钢筋混凝土柱剩余能力的数值模型[J].工程力学,2020,37(12):52-67。
[8]	耿相日.混凝土柱震致残余侧移和剩余抗震能力评价方法[D].哈尔滨：哈尔滨工业大学,2019。
[9]	苏佶智,刘伯权,邢国华.钢筋混凝土柱地震损伤模型比较研究[J].世界地震工程,2018,34(02):80-88。
[10]	Gill W D. Ductility of rectangular reinforced concrete columns with axial load [J]. University of canterbury department of civil engineering, 1979.
[11]	Ang B G. Ductility of reinforced concrete bridge piers under seismic loading [J]. University of canterbury research report.
[12]	Mo Y L, Wang S J. Seismic behavior of RC columns with various tie configurations [J]. Journal of Structural Engineering, 2000, 126 (10): 1122-1130.
[13]	Legeron F, Paultre P. Behavior of High-Strength Concrete Columns under Cyclic Flexure and Constant Axial Load [J]. ACI Structural Journal, 2000, 97 (4): p. 591-601.
[14]	冯鹏,强翰霖,叶列平.材料、构件、结构的“屈服点”定义与讨论[J].工程力学,2017,34(03):36-46。
[15]	杜修力,欧进萍.建筑结构地震破坏评估模型[J].世界地震工程,1991(03):52-58。

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APA Style

Liu Baichuan, Hu Weibing. (2021). Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model. Science Discovery, 9(6), 308-313. https://doi.org/10.11648/j.sd.20210906.16

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ACS Style

Liu Baichuan; Hu Weibing. Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model. Sci. Discov. 2021, 9(6), 308-313. doi: 10.11648/j.sd.20210906.16

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AMA Style

Liu Baichuan, Hu Weibing. Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model. Sci Discov. 2021;9(6):308-313. doi: 10.11648/j.sd.20210906.16

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@article{10.11648/j.sd.20210906.16,
  author = {Liu Baichuan and Hu Weibing},
  title = {Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model},
  journal = {Science Discovery},
  volume = {9},
  number = {6},
  pages = {308-313},
  doi = {10.11648/j.sd.20210906.16},
  url = {https://doi.org/10.11648/j.sd.20210906.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20210906.16},
  abstract = {Based on the test data of reinforced concrete (RC) columns published in Pacific Earthquake Engineering Research Center (PEER) database, three existing typical seismic damage models are studied, and the distribution law of damage index of the same member calculated by energy dissipation model, stiffness degradation model and Park-Ang model are summarized. The relative stiffness with the yield stiffness as the reference is constructed, and the stiffness model is improved to solve the problems that the original stiffness model is too sensitive to the initial damage and the calculation accuracy is not high. The data show that the new model has high accuracy in calculating the damage index of components under earthquake. Comparing the damage index calculated by the model with the apparent damage phenomenon of each stage of the specimen, and comparing the damage development index of different models, it is found that the stiffness model is the most accurate to evaluate the damage. The damage grade evaluation standard based on stiffness degradation is proposed, and the damage indexes under three different damage states of Concrete Cracking, Significant Concrete Spalling and Long Bar Buckling are analyzed. The results show that the damage index calculated by the damage assessment method based on stiffness degradation has good correlation under different damage states.},
 year = {2021}
}

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TY  - JOUR
T1  - Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model
AU  - Liu Baichuan
AU  - Hu Weibing
Y1  - 2021/11/12
PY  - 2021
N1  - https://doi.org/10.11648/j.sd.20210906.16
DO  - 10.11648/j.sd.20210906.16
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 308
EP  - 313
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20210906.16
AB  - Based on the test data of reinforced concrete (RC) columns published in Pacific Earthquake Engineering Research Center (PEER) database, three existing typical seismic damage models are studied, and the distribution law of damage index of the same member calculated by energy dissipation model, stiffness degradation model and Park-Ang model are summarized. The relative stiffness with the yield stiffness as the reference is constructed, and the stiffness model is improved to solve the problems that the original stiffness model is too sensitive to the initial damage and the calculation accuracy is not high. The data show that the new model has high accuracy in calculating the damage index of components under earthquake. Comparing the damage index calculated by the model with the apparent damage phenomenon of each stage of the specimen, and comparing the damage development index of different models, it is found that the stiffness model is the most accurate to evaluate the damage. The damage grade evaluation standard based on stiffness degradation is proposed, and the damage indexes under three different damage states of Concrete Cracking, Significant Concrete Spalling and Long Bar Buckling are analyzed. The results show that the damage index calculated by the damage assessment method based on stiffness degradation has good correlation under different damage states.
VL  - 9
IS  - 6
ER  -

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Author Information

Liu Baichuan

Civil Engineering, Xi’an University of Architecture and Technology, Xi'an, China
Hu Weibing

Civil Engineering, Xi’an University of Architecture and Technology, Xi'an, China

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Plain Text BibTeX RIS

APA Style

Liu Baichuan, Hu Weibing. (2021). Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model. Science Discovery, 9(6), 308-313. https://doi.org/10.11648/j.sd.20210906.16

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ACS Style

Liu Baichuan; Hu Weibing. Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model. Sci. Discov. 2021, 9(6), 308-313. doi: 10.11648/j.sd.20210906.16

Copy | Download

AMA Style

Liu Baichuan, Hu Weibing. Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model. Sci Discov. 2021;9(6):308-313. doi: 10.11648/j.sd.20210906.16

Copy | Download

@article{10.11648/j.sd.20210906.16,
  author = {Liu Baichuan and Hu Weibing},
  title = {Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model},
  journal = {Science Discovery},
  volume = {9},
  number = {6},
  pages = {308-313},
  doi = {10.11648/j.sd.20210906.16},
  url = {https://doi.org/10.11648/j.sd.20210906.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20210906.16},
  abstract = {Based on the test data of reinforced concrete (RC) columns published in Pacific Earthquake Engineering Research Center (PEER) database, three existing typical seismic damage models are studied, and the distribution law of damage index of the same member calculated by energy dissipation model, stiffness degradation model and Park-Ang model are summarized. The relative stiffness with the yield stiffness as the reference is constructed, and the stiffness model is improved to solve the problems that the original stiffness model is too sensitive to the initial damage and the calculation accuracy is not high. The data show that the new model has high accuracy in calculating the damage index of components under earthquake. Comparing the damage index calculated by the model with the apparent damage phenomenon of each stage of the specimen, and comparing the damage development index of different models, it is found that the stiffness model is the most accurate to evaluate the damage. The damage grade evaluation standard based on stiffness degradation is proposed, and the damage indexes under three different damage states of Concrete Cracking, Significant Concrete Spalling and Long Bar Buckling are analyzed. The results show that the damage index calculated by the damage assessment method based on stiffness degradation has good correlation under different damage states.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Comparison of Damage Models of Reinforced Concrete Columns and Research on Improved Stiffness Model
AU  - Liu Baichuan
AU  - Hu Weibing
Y1  - 2021/11/12
PY  - 2021
N1  - https://doi.org/10.11648/j.sd.20210906.16
DO  - 10.11648/j.sd.20210906.16
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 308
EP  - 313
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20210906.16
AB  - Based on the test data of reinforced concrete (RC) columns published in Pacific Earthquake Engineering Research Center (PEER) database, three existing typical seismic damage models are studied, and the distribution law of damage index of the same member calculated by energy dissipation model, stiffness degradation model and Park-Ang model are summarized. The relative stiffness with the yield stiffness as the reference is constructed, and the stiffness model is improved to solve the problems that the original stiffness model is too sensitive to the initial damage and the calculation accuracy is not high. The data show that the new model has high accuracy in calculating the damage index of components under earthquake. Comparing the damage index calculated by the model with the apparent damage phenomenon of each stage of the specimen, and comparing the damage development index of different models, it is found that the stiffness model is the most accurate to evaluate the damage. The damage grade evaluation standard based on stiffness degradation is proposed, and the damage indexes under three different damage states of Concrete Cracking, Significant Concrete Spalling and Long Bar Buckling are analyzed. The results show that the damage index calculated by the damage assessment method based on stiffness degradation has good correlation under different damage states.
VL  - 9
IS  - 6
ER  -

Copy | Download