A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Stress-strain model for confined concrete with corroded transverse reinforcement
HighlightsExperiment on stress-strain relations of corroded confined concrete was conducted.Effects of corrosion on stress-strain relations of confined concrete were studied.Stress-strain model for confined concrete with corroded reinforcement was proposed.
AbstractThis 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.
Stress-strain model for confined concrete with corroded transverse reinforcement
HighlightsExperiment on stress-strain relations of corroded confined concrete was conducted.Effects of corrosion on stress-strain relations of confined concrete were studied.Stress-strain model for confined concrete with corroded reinforcement was proposed.
AbstractThis 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.
Stress-strain model for confined concrete with corroded transverse reinforcement
Vu, Ngoc Son (author) / Yu, Bo (author) / Li, Bing (author)
Engineering Structures ; 151 ; 472-487
2017-08-20
16 pages
Article (Journal)
Electronic Resource
English
Flexural stress-strain relationship of concrete confined by rectangular transverse reinforcement
| Engineering Index Backfile | 1967
| British Library Conference Proceedings | 2000
Cyclic Behavior of Reinforced Concrete Beams with Corroded Transverse Steel Reinforcement
| British Library Online Contents | 2014