[1]陈庆军,张雨圻,雷浚,等.CFRP布加固广府古建木结构残损箍头榫节点抗震性能研究[J].西安建筑科技大学学报(自然科学版),2024,56(05):642-649，659.[doi:10.15986.j.1006-7930.2024.05.002]
　CHEN Qingjun,ZHANG Yuqi,LEI Jun,et al. Study on seismic performance of damaged hoop tenonmortise joints of Guangfu ancient wooden structure strengthened with CFRP strip [J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2024,56(05):642-649，659.[doi:10.15986.j.1006-7930.2024.05.002]
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CFRP布加固广府古建木结构残损箍头榫节点抗震性能研究()
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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:
56
期数:
2024年05期
页码:
642-649，659
栏目:
出版日期:
2024-10-28

文章信息/Info

Title:
Study on seismic performance of damaged hoop tenonmortise joints of Guangfu ancient wooden structure strengthened with CFRP strip
文章编号:
1006-7930(2024)05-0642-08
作者:
陈庆军1; 2; 张雨圻1; 雷浚1; 黄才茂1; 江少坤1
（1华南理工大学 土木与交通学院, 广东 广州 510641；2广东高校工程抗震技术研究中心, 广东 广州 510641）
Author(s):
CHEN Qingjun1; 2;  ZHANG Yuqi1;  LEI Jun1;  HUANG Caimao1;  JIANG Shaokun1
（1.School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China；2.Engineering Seismic Research Center of Guangdong , Guangzhou 510641, China）
关键词:
残损木结构; 箍头榫; 碳纤维增强复合材料; 加固; 低周反复荷载试验
Keywords:
damaged wooden structures;  hoop head tenonmortise;  CFRP;  strengthening;  low-cycle reversed loading test
分类号:
TU318
DOI:
10.15986.j.1006-7930.2024.05.002
文献标志码:
A
摘要:
采用不同方案的碳纤维（CFRP，Carbon Fiber Reinforced Plastics）布，对6个经过抗震性能试验的残损箍头榫节点试件进行加固，并进行抗震性能试验.结果表明：有3个加固后节点试件的峰值承载能力超越了加固前试件的峰值承载能力，加固后节点的峰值承载力主要与梁榫原始损伤程度及加固量直接相关.加固后节点的初始刚度明显大于加固前的节点，而加固后试件的极限转角普遍小于加固前，但大部分试件极限位移转角均能达到1/21以上，说明此方法加固的节点具有良好的抗震变形能力.加固梁上侧与下侧的CFRP布，对受拉损伤的梁起了重要的补强作用.梁侧面CFRP布在节点区转角较大时退出工作，而L型CFRP布也随着节点转角的增大而逐步退出工作.
Abstract:
Six damaged hoop mortisetenon joint specimens after seismic performance test were strengthened with different schemes of Carbon Fiber Reinforced Plastics (CFRP) strip, and the seismic performance test was carried out. The results show that the peak bearing capacity of three reinforced joint specimens exceeds the peak bearing capacity of the specimens before reinforcement, and the peak bearing capacity of the reinforced joints is mainly directly related to the original damage degree of the beam tenon and the extent of the applied strengthening measures. The initial stiffness of the strengthened joints is considerably higher than that of unstrengthened joints, while the ultimate rotation angle of the strengthened specimens is generally smaller than the unstrengthened ones. However, the ultimate displacement angle of most specimens can reach more than 1/21, indicating that the joints strengthened by this method have good seismic deformation ability. The CFRP strip on the top and bottom of the beams plays an important role in strengthening the tensiledamaged beams. The CFRP strip on the side of the beams loses its effect when the rotation angle of the joint area is large, and the Lshaped CFRP strip also gradually loses its effect with the increase of the rotation angle of the joint.

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备注/Memo

备注/Memo:
收稿日期:20240430修回日期:20240831
基金项目:广东省自然科学基金项目（2021A1515012603）
第一作者:陈庆军（1975—），男，博士，教授，主要从事木结构、混凝土结构等研究.Email: qjchen@scuteducn
更新日期/Last Update: 2024-11-21