FRP筋与混凝土粘结性能研究进展及本构模型改进

张望喜; 胡彬彬; 王冠杰; 易伟建

doi:10.11835/j.issn.2096-6717.2021.089

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FRP筋与混凝土粘结性能研究进展及本构模型改进

土木工程 | 更新时间：2023-03-07

- FRP筋与混凝土粘结性能研究进展及本构模型改进
- Research progress on bond behavior between FRP bars and concrete and improvement of constitutive model
- 土木与环境工程学报 2023年45卷第2期页码：111-122
- 作者机构：
  
  1.湖南大学，工程结构损伤诊断湖南省重点实验室，长沙 410082
  2.湖南大学，土木工程学院，长沙 410082
- 作者简介：
  
  张望喜（1971- ），男，博士，教授，主要从事结构基本理论、结构抗震与防连续倒塌性能研究，E-mail: wxizhang2000@hnu.edu.cn。
- 基金信息：
  
  国家自然科学基金(52078201)
- DOI：10.11835/j.issn.2096-6717.2021.089
  中图分类号： TU375.4
- 收稿：2021-01-23，
  
  纸质出版：2023-04-25
- 稿件说明：
移动端阅览
张望喜, 胡彬彬, 王冠杰, 等. FRP筋与混凝土粘结性能研究进展及本构模型改进[J]. 土木与环境工程学报, 2023,45(2):111-122.

ZHANG Wangxi, HU Binbin, WANG Guanjie, et al. Research progress on bond behavior between FRP bars and concrete and improvement of constitutive model[J]. Journal of Civil and Environmental Engineering, 2023, 45(2): 111-122.
张望喜, 胡彬彬, 王冠杰, 等. FRP筋与混凝土粘结性能研究进展及本构模型改进[J]. 土木与环境工程学报, 2023,45(2):111-122. DOI： 10.11835/j.issn.2096-6717.2021.089.

ZHANG Wangxi, HU Binbin, WANG Guanjie, et al. Research progress on bond behavior between FRP bars and concrete and improvement of constitutive model[J]. Journal of Civil and Environmental Engineering, 2023, 45(2): 111-122. DOI： 10.11835/j.issn.2096-6717.2021.089.

摘要

近年来，FRP（纤维增强聚合物）筋代替钢筋在混凝土结构中得到越来越广泛的应用。与钢筋相比，FRP筋具有各向异性、非均质、表面形式不同等特性，这导致FRP筋与混凝土之间的粘结机制不同于钢筋与混凝土。为全面了解FRP筋与混凝土之间的粘结性能，收集数据建立由342个拉拔试验试件组成的数据库，分析粘结性能与各因素之间的关系，对没有达成一致结论的观点进行补充和讨论，分析高温、冻融循环、电解质溶液对FRP筋与混凝土粘结性能的影响；校核常用的粘结-滑移本构模型的计算精度，基于建立的试验数据库，提出新的精度更高的粘结-滑移本构上升段表达式。

Abstract

In recent years

FRP (Fiber Reinforced Polymer) bars have been used more and more widely in concrete structures instead of steel bars. Unlike the latter

FRP bars have the characteristics of anisotropy

heterogeneity and different surface forms

which lead to the different bond mechanisms between FRP bars and concrete. In order to fully understand the bond behavior

a database of 342 pull-out test specimens was set up. The influence of various factors on the bond behavior was analyzed. The viewpoints that there was no consensus were supplemented and discussed. The effects of high temperature

freeze-thaw cycle and electrolyte solution on the bond behavior of FRP bars and concrete were also analyzed. In addition

the predictive accuracy of the commonly used bond-slip constitutive models were checked. Based on the established test database

a new expression of the rising section of the bond-slip constitutive model was set up.

关键词

Keywords

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