钢筋增强钢管混凝土短柱的轴心受压性能

阿里甫江·夏木西; 刘晓蕊

doi:10.13568/j.cnki.651094.651316.2020.01.18.0002

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钢筋增强钢管混凝土短柱的轴心受压性能

工程技术 | 更新时间：2026-01-21

- 钢筋增强钢管混凝土短柱的轴心受压性能
- 钢筋增强钢管混凝土短柱的轴心受压性能
- 新疆大学学报（自然科学版中英文） 2021年38卷第1期页码：91-99
- 作者机构：
  
  新疆大学建筑工程学院
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（51968068）
- DOI：10.13568/j.cnki.651094.651316.2020.01.18.0002
  中图分类号： TU398.9
- 纸质出版：2021
- 稿件说明：
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[1]阿里甫江·夏木西,刘晓蕊.钢筋增强钢管混凝土短柱的轴心受压性能[J].新疆大学学报(自然科学版)(中英文),2021,38(01):91-99.
[1]阿里甫江·夏木西,刘晓蕊.钢筋增强钢管混凝土短柱的轴心受压性能[J].新疆大学学报(自然科学版)(中英文),2021,38(01):91-99. DOI： 10.13568/j.cnki.651094.651316.2020.01.18.0002.

DOI：10.13568/j.cnki.651094.651316.2020.01.18.0002.

摘要

为了探究混凝土强度对钢筋增强钢管混凝土短柱(R-CFST)轴压性能的影响规律

进行了试验研究.试验中

将混凝土的强度等级作为主要参数

制备了6种混凝土强度的R-CFST、钢管混凝土和普通钢筋混凝土等54根圆形截面短柱试件.根据试验结果

分析了混凝土强度对受力性能、破坏模式、延性、套箍效应和峰值荷载的影响.结果表明:由于钢筋的贡献

R-CFST轴压性能的退化不随混凝土强度的提高而增加

具有较好的塑性性能;钢筋对R-CFST延性、套箍效应和强度的改善随混凝土强度的提高而变得更加明显;混凝土强度的提高不造成破坏模式的改变;高强度混凝土填充时配置适量钢筋可以有效增强R-CFST的受力性能;给出的计算公式能合理计算R-CFST承载力.

Abstract

To clarify the effect of concrete on loading performance of concrete-filled steel tube stub column strengthened with reinforcement(R-CFST)

compression tests were conducted. Using the concrete strength as parameter

R-CFST

concrete-filled steel tube and reinforced concrete specimens were prepared in 6 concrete strength-grades

and total 54 specimens were tested.Based on the test results

the loading performance

failure mode

ductility

confinement effect and peak load were analyzed.Finally

conclusions were attained as follows: because of interaction of the reinforcement

performance-degradation of R-CFST will not increase as the concrete strength increases

and shows better plastic deformability; improving effect of reinforcement on ductility

confinement effect and strength of R-CFST will increase as the concrete strength increases; increase of concrete strength will not cause significant changes in failure mode; proper reinforcement will bring enhancement of performance of R-CFST filled with high-strength concrete; the proposed equation is applicable to predict the strength of R-CFST.

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references

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