[1]高 鹏,袁大明,王田宇,等.双向纤维布约束加固钢筋混凝土柱的FRP锚钉设计方法研究[J].西安建筑科技大学学报(自然科学版),2022,54(02):278-283.[doi:10.15986/j.1006-7930.2022.02.015]
　GAO Peng,YUAN Daming,WANG Tianyu,et al.Study on design method of FRP anchor in RC columns confined with bidirectional FRP sheets[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2022,54(02):278-283.[doi:10.15986/j.1006-7930.2022.02.015]
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双向纤维布约束加固钢筋混凝土柱的FRP锚钉设计方法研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
54
期数:
2022年02期
页码:
278-283
栏目:
出版日期:
2022-04-28

文章信息/Info

Title:
Study on design method of FRP anchor in RC columns confined with bidirectional FRP sheets
文章编号:
1006-7930(2022)02-0278-06
作者:
高 鹏1; 2; 袁大明1; 王田宇1; 陈道政1; 2
(1.合肥工业大学 土木与水利学院,安徽 合肥 230009; 2.中国地震局工程力学研究所地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150086)
Author(s):
GAO Peng1; 2;  YUAN Daming2;  WANG Tianyu2;  CHEN Daozheng2
(1.School of Civil Engineering, Hefei University of Technology, Hefei 230009,China; 2.China Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Haerbin 150086, China)
关键词:
双向纤维布;  约束;  钢筋混凝土柱;  FRP锚钉;  设计方法
Keywords:
bidirectional FRP sheets;  confinement;  reinforced concrete column;  FRP anchor;  design method
分类号:
TU375.3
DOI:
10.15986/j.1006-7930.2022.02.015
文献标志码:
A
摘要:
改造工程中既有钢筋混凝土框架结构抗震等级提高,常使柱产生弯剪压复合加固的需求.使用双向纤维布约束钢筋混凝土柱,采用FRP锚钉给予布中纵向纤维较好的锚固,使得布中的两向纤维丝可同时受拉.基于已有相关研究,提出了双向纤维布约束加固钢筋混凝土柱底FRP锚钉设计制作方法,并进行了加固柱的拟静力推覆试验验证.结果表明:使用FRP锚钉后有效避免纤维布在端部破坏,提高了纵向纤维应变水平,使得约束加固柱的变形能力、抗弯和抗剪承载力同时提高.
Abstract:
In retrofitting the existing reinforced concrete(RC)frame structures, the improvement of seismic grade often leads to the demand of composite strengthening of flexural and shear capacities for columns. The reinforced concrete columns can be confined with bidirectional fibers reinforced polymers(FRP)sheets, and the longitudinal fibers in the sheets can be better anchored by FRP anchors, so that the FRP sheets can be tensioned in two directions. Based on the relevant research, the design and fabrication method of FRP anchors used for the RC columns confined with bi-directional FRP in the plastic hinge area were proposed, and then the pseudo-static force pushover test of the reinforced column was carried out. The results showed that the FRP anchors effectively improved the working strain of longitudinal fiber; and the seismic deformation, flexural and shear capacity of columns were simultaneously improved.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-04-01修改稿日期:2021-04-21
基金项目:中国地震局工程力学研究所基本科研业务费专项基金资助项目(2020EEEVL0417)
第一作者:高鹏(1978—),男,博士,副教授,硕士生导师,主要研究方向为混凝土结构加固.E-mail:penggao@hfut.edu.cn
更新日期/Last Update: 2022-04-28