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CLC number: TU279.72

On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 2013-11-07

Cited: 5

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2013 Vol.14 No.12 P.856-866

http://doi.org/10.1631/jzus.A1300185


A modified constitutive model for FRP confined concrete in circular sections and its implementation with OpenSees programming*


Author(s):  Hui Liu1, Ming-hua He1, Yu-qi Luan1, Jia Guo2, Lu-lu Liu3

Affiliation(s):  1. Department of Civil Engineering, Tsinghua University, Beijing 100084, China; more

Corresponding email(s):   heminghua@tsinghua.edu.cn

Key Words:  FRP confined concrete, Constitutive model, OpenSees, User material, Secondary development


Hui Liu, Ming-hua He, Yu-qi Luan, Jia Guo, Lu-lu Liu. A modified constitutive model for FRP confined concrete in circular sections and its implementation with OpenSees programming[J]. Journal of Zhejiang University Science A, 2013, 14(12): 856-866.

@article{title="A modified constitutive model for FRP confined concrete in circular sections and its implementation with OpenSees programming",
author="Hui Liu, Ming-hua He, Yu-qi Luan, Jia Guo, Lu-lu Liu",
journal="Journal of Zhejiang University Science A",
volume="14",
number="12",
pages="856-866",
year="2013",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1300185"
}

%0 Journal Article
%T A modified constitutive model for FRP confined concrete in circular sections and its implementation with OpenSees programming
%A Hui Liu
%A Ming-hua He
%A Yu-qi Luan
%A Jia Guo
%A Lu-lu Liu
%J Journal of Zhejiang University SCIENCE A
%V 14
%N 12
%P 856-866
%@ 1673-565X
%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300185

TY - JOUR
T1 - A modified constitutive model for FRP confined concrete in circular sections and its implementation with OpenSees programming
A1 - Hui Liu
A1 - Ming-hua He
A1 - Yu-qi Luan
A1 - Jia Guo
A1 - Lu-lu Liu
J0 - Journal of Zhejiang University Science A
VL - 14
IS - 12
SP - 856
EP - 866
%@ 1673-565X
Y1 - 2013
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300185


Abstract: 
openSees is a well-recognized open source platform with high compatibility, and it has a well-developed fiber element method to cope with nonlinear structural analysis. Fiber reinforced polymer (FRP) confined concrete can effectively improve the seismic performance of concrete structures. However, sophisticated constitutive models for FRP confined concrete are not available in the current version of openSees. In this paper, after reviewing several typical FRP confined concrete constitutive models, a modified constitutive model for FRP confined concrete in circular sections was proposed based on Lam and Teng (2003)’s model with four main modifications including the determination of FRP rupture strain, ultimate condition, envelope shape, and hysteretic rules. To embed the proposed constitutive model into openSees is a practical solution for engineering simulation. Hence, the secondary development of openSees New UserMat was briefly demonstrated and a set of critical steps were depicted in a flow chart. Finally, with the numerical implementations of a series of FRP confined concrete members covering a wide range of load cases, FRP confinement types and geometric properties, the utility and accuracy of the proposed model compared with Lam and Teng (2003)’s model and new material secondary development in openSees were well validated.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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