CFRP约束混凝土圆柱轴心受压力学性能分析

梁猛; 董伟; 易富民; 吴智敏

doi:10.11835/j.issn.1674-4764.2010.06.007

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CFRP约束混凝土圆柱轴心受压力学性能分析

更新时间：2023-11-28

- CFRP约束混凝土圆柱轴心受压力学性能分析
- Mechanical Properties of Concrete Cylinders Confined with CFRP Sheets Subjected to Axial Compression
- 土木与环境工程学报（中英文） 2010年32卷第6期页码：36-41
- 作者机构：
  
  大连理工大学海岸与近海工程国家重点实验室,辽宁,大连,116023
- 作者简介：
- 基金信息：
  
  国家自然基金项目（50578025）
- DOI：10.11835/j.issn.1674-4764.2010.06.007
  中图分类号：
- 纸质出版：2010
- 稿件说明：
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梁猛, 董伟, 易富民, 等. CFRP约束混凝土圆柱轴心受压力学性能分析[J]. 土木与环境工程学报（中英文）, 2010,32(6):36-41.

LIANG Meng, DONG Wei, YI Fu-min, et al. Mechanical Properties of Concrete Cylinders Confined with CFRP Sheets Subjected to Axial Compression[J]. Journal of Civil and Environmental Engineering, 2010, 32(6): 36-41.
梁猛, 董伟, 易富民, 等. CFRP约束混凝土圆柱轴心受压力学性能分析[J]. 土木与环境工程学报（中英文）, 2010,32(6):36-41. DOI： 10.11835/j.issn.1674-4764.2010.06.007.

LIANG Meng, DONG Wei, YI Fu-min, et al. Mechanical Properties of Concrete Cylinders Confined with CFRP Sheets Subjected to Axial Compression[J]. Journal of Civil and Environmental Engineering, 2010, 32(6): 36-41. DOI： 10.11835/j.issn.1674-4764.2010.06.007.

摘要

采用基于非相关联流动法则的混凝土Drucker-Prager模型，对碳纤维增强复合材料(CFRP)约束混凝土圆柱的轴压受力性能进行了非线性有限元计算，分析了CFRP厚度、CFRP缠绕角度和混凝土强度3种因素对柱轴压力学性能的影响。结果表明：采用非相关联流动法则计算得到的数值结果与试验结果吻合良好；随CFRP厚度增加，柱的极限压应力和压应变均增大；CFRP环向缠绕比成角度缠绕的混凝土柱能获得更大的极限压应力；混凝土强度越低，CFRP的约束效率越高。

Abstract

Based on Drucker-Prager criterion with non-associated flow rule

numerical analysis of mechanical properties of concrete cylinders were carried out by using non-linear finite element method. The effect caused by various parameters such as wrap thickness

fiber orientation and concrete strength on axial mechanical properties of concrete cylinders is discussed. The results show that the results calculated by non-associated flow rule conform to that in the test. It is demonstrated that there is significant enhancement both in compressive strength and ductility of cylinders with the increase of wrap thickness. Moreover

the gain in axial compressive strength is observed to be higher for lower strength concrete and be highest in the cylinders wrapped with the hoop orientation.

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