Composite effect of steel-concrete-steel elements underaxial compression for nuclear power plant

被引：0
|
作者：
Jiang Y.-J. [1 ]
Chen S.-J. [1 ]
Huang C.-J. [1 ]
Song X.-B. [1 ]
机构：
[1] Department of Civil Engineering, Shanghai Jiaotong University, Shanghai
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2019年 / 53卷 / 04期
关键词：
Axial compression; Composite effect; Confinement strengthening effect; Poisson's effect; Steel-concrete-steel (SCS) element;
D O I：
10.3785/j.issn.1008-973X.2019.04.013
中图分类号：
学科分类号：
摘要：
The stress redistribution rules of the steel plates and concrete in steel-concrete-steel (SCS) elements under axial compression were analyzed based on Poisson's effect of materials in order to analyze the composite effect between the steel and concrete in SCS structures under axial compression for nuclear power plants. Two kinds of stress states of the steel plates and concrete, and the lateral constraint stresses of concrete were found from the composite effect. Then the axial compression test results of SCS element were used to demonstrate the theoretical analysis. Results show that the stress redistribution rules of the steel plates and concrete depend on the relative change of the Poisson's ratio of the two materials. The steel plates are in compression-tension plane stress state and the concrete is in triaxial compression stress state in the limit state of bearing capacity when the SCS element is under axial compression. The " confinement strengthening effect" of concrete is found in SCS element subjected to axial compression. © 2019, Zhejiang University Press. All right reserved.
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页码：724 / 731and742
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