Confining stress path dependent stress-strain model for pre-tensioned steel-confined concrete
作者： Chee-Loong Chin , Chau-Khun Ma , Abdullah Zawawi Awang , Jia-Yang Tan , Chin-Boon Ong
DOI: 10.1016/J.ENGSTRUCT.2019.109769
关键词: Cylinder stress 、 Stress path 、 Dissipation 、 Reinforced concrete 、 Structural engineering 、 Stress–strain curve 、 Dependency (UML) 、 Materials science
摘要: Abstract Stress-strain model of a confined concrete is one the most important factors to predict structural behaviour reinforced elements. Previous research has revealed that axial stress always less than in comparison with actively due confining path dependency. In view this, this paper presents an investigation influence on stress-strain pre-tensioned steel-confined concrete. It shown variation pre-tension level influences and hence behaviour. An expression proposed cater for such dependency based concept accumulation dissipation effect. By incorporating into existing framework analysis-oriented model, incremental procedure proposed. demonstrated capable capturing different level. The accuracy assessed by using experimental database at last part paper.
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