Stress-strain model for confined concrete with corroded transverse reinforcement
Stress-strain model for confined concrete with corroded transverse reinforcement
复制标题
横向钢筋锈蚀约束混凝土的应力应变模型
DOI：
10.1016/j.engstruct.2017.08.049
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发表时间：
2017-11
影响因子：
5.5
通讯作者：
Li Bing
中科院分区：
文献类型：
--
作者：
Vu N.S.;Yu Bo;Li Bing
本文对考虑横向钢筋锈蚀影响的约束混凝土应力-应变关系进行了试验研究。主要变量是横向钢筋锈蚀程度、约束混凝土截面形状以及约束横向钢筋的布置和配置。试验结果表明，横向钢筋锈蚀对混凝土最大强度及相应的轴向应变、第一个箍筋断裂时的最大应变、超过最大强度后的下降分支等4个关键参数有显著影响。基于试验数据和回归分析，提出了估算这些关键参数的经验公式，建立了横向钢筋锈蚀约束混凝土的应力-应变全过程模型。该模型与不同腐蚀程度的圆形和方形试件的轴向压缩试验数据具有良好的相关性。
This paper presents an experimental study on the stress-strain relation of confined concrete that considers the corrosion effects of transverse reinforcement. The main variables are the corrosion level of transverse reinforcement, cross sectional shape of confined concrete, as well as arrangement and configuration of confining transverse reinforcing bars. The test results revealed that four key parameters of the complete stress-strain relation are significantly affected due to the corrosion of transverse reinforcement, including the maximum concrete strength and corresponding axial concrete strain, maximum concrete strain at the fracture of the first hoops, and descending branch of the stress-strain curve after exceeding the maximum strength. Based on the test data and regression analysis, the empirical equations to estimate these key parameters are proposed, and a complete stress-strain model for confined concrete with corroded transverse reinforcement is developed. The proposed model showed good correlation with the test data of both circular and square specimens with various corrosion levels and subjected to compression axial loading.
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影响因子：
1.8
作者：
A. El-Sayed;R. Hussain;A. Shuraim
通讯作者：
A. El-Sayed;R. Hussain;A. Shuraim
DOI：
10.26021/2458
发表时间：
1992
期刊：
--
影响因子：
--
作者：
L. Dodd
通讯作者：
L. Dodd
DOI：
10.1061/(asce)0733-9445(1988)114:8(1804
发表时间：
1988-08-01
期刊：
JOURNAL OF STRUCTURAL ENGINEERING-ASCE
影响因子：
--
作者：
MANDER, JB;PRIESTLEY, MJN;PARK, R
通讯作者：
PARK, R
影响因子：
7.4
作者：
Shu-Yan Yang;Xiaobing Song;H. Jia;Xi Chen;Xi-la Liu
通讯作者：
Shu-Yan Yang;Xiaobing Song;H. Jia;Xi Chen;Xi-la Liu
DOI：
10.1061/(asce)0733-9445(1992)118:6(1590
发表时间：
1992-06-01
期刊：
JOURNAL OF STRUCTURAL ENGINEERING-ASCE
影响因子：
--
作者：
SAATCIOGLU, M;RAZVI, SR
通讯作者：
RAZVI, SR