Journal of Zhejiang University

Journal of Zhejiang University SCIENCE A 2014 Vol.15 No.3 P.208-218

A study on the contraction joint element and damage constitutive model for concrete arch dams*

Author(s): Qiang Xu¹,Jian-yun Chen^1,2,Jing Li¹,Hong-yuan Yue¹
Affiliation(s): 1. 1. School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116023, China more
Corresponding email(s): xuqiang528826@163.com
Key Words: Contraction joint element, Damage, Concrete, Arch dam, Constitutive model

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Qiang Xu, Jian-yun Chen, Jing Li, Hong-yuan Yue. A study on the contraction joint element and damage constitutive model for concrete arch dams[J]. Journal of Zhejiang University Science A, 2014, 15(3): 208-218.

@article{title="A study on the contraction joint element and damage constitutive model for concrete arch dams",
author="Qiang Xu, Jian-yun Chen, Jing Li, Hong-yuan Yue",
journal="Journal of Zhejiang University Science A",
volume="15",
number="3",
pages="208-218",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1300244"
}

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%T A study on the contraction joint element and damage constitutive model for concrete arch dams
%A Qiang Xu
%A Jian-yun Chen
%A Jing Li
%A Hong-yuan Yue
%J Journal of Zhejiang University SCIENCE A
%V 15
%N 3
%P 208-218
%@ 1673-565X
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1300244

TY - JOUR
T1 - A study on the contraction joint element and damage constitutive model for concrete arch dams
A1 - Qiang Xu
A1 - Jian-yun Chen
A1 - Jing Li
A1 - Hong-yuan Yue
J0 - Journal of Zhejiang University Science A
VL - 15
IS - 3
SP - 208
EP - 218
%@ 1673-565X
Y1 - 2014
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1300244

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: A new contraction joint element model for the interface in different meshes between the arch dam sections is constructed. The study on the elastic-plastic damage constitutive model for concrete, which is applied to multi-axial stresses, is also taken. The models of the dam-foundation-reservoir system for Xingbiling and Jinping concrete arch dams, China are calculated using the proposed contraction joint elements and the elastic-plastic damage constitutive model to verify the proposed models. Results showed that the proposed contraction joint element model has a high precision in simulating the behavior of contraction joints and the elastic-plastic damage constitutive model has a high precision in simulating the behavior of the damage to the concrete.

混凝土拱坝横缝单元和损伤本构的研究

研究目的：研究混凝土拱坝多尺度横缝单元和坝体损伤。
创新要点：解决了拱坝坝段单元采用不同剖分形式（即多尺度剖分形式）时，在静动力荷载下，拱坝横缝开度和坝体损伤的计算。
研究方法：首先建立大尺度交接面单元和小尺度单元坝段自由度耦合，然后建立大尺度交接面单元和大尺度单元坝段横缝单元模型，并对坝体损伤本构的计算进行研究。
重要结论：通过对比计算发现，通过混凝土的损伤本构计算的应力峰值和实验结果相同，下降段的应力应变曲线基本吻合。提出的不同尺度横缝单元模型对坝体应力和横缝开度的计算误差在7%以内。

关键词：多尺度；横缝单元；损伤本构；拱坝；本构模型