三种不同截面形状FRP约束混凝土应力-应变关系的试验研究

来文汇; 潘景龙; 金熙男

doi:10.13204/j.gyjz200410024

三种不同截面形状FRP约束混凝土应力-应变关系的试验研究

doi: 10.13204/j.gyjz200410024

1.
哈尔滨工业大学哈尔滨 150090

详细信息

作者简介:
来文汇女 1977年12月出生硕士

中图分类号: TU375
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- 被引次数: 0
出版历程
- 收稿日期: 2004-03-30
- 刊出日期: 2004-10-20

COMPRESSIVE STRESS-STRAIN BEHAVIOR OF CONCRETE CONFINED BY FIBER REINFORCED POLYMER

1.
Harbin Institute of Technology Harbin 150090

摘要

摘要: 通过对21个三种不同截面形状的FRP约束混凝土短柱的全过程试验研究，证实了不同截面形状的FRP约束混凝土具有相似的应力-应变全过程曲线，但由于其有效约束的差异，即使混凝土短柱强度和FRP含量相同，其全过程曲线的一些特征值也各不相同。结合国内外相关试验结果，给出了统一的适用于不同截面形状的应力-应变关系方程，并给出了以约束刚度j为主要参数来确定关系方程中各特征值的方法。
- FRP /
- 纤维约束混凝土 /
- 应力-应变关系 /
- 截面形状 /
- 混凝土轴压短柱
Abstract: The results of test made with 21 FRP confined concrete columns in three different sectional shapes show that the strain stress curves of FRP confined concrete columns are similar to each other. But because of effective confine's difference,characteristic values of strain-stress curves are different even though strength of concrete and the content of FRP are the same. Referring to a large test database assembled from domestic and foreign existing studies, an uniform formula of stress-strain relationship is proposed. In order to calculate eigenvalues, methods of confine stiffness j choosen as a primary parameter are given.
- FRP /
- FRP confined concrete /
- stress-strain relationship /
- sectional shapes /
- concrete short columns in axial compression

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参考文献(11)

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