[1]施嘉伟,朱虹,吴智深,等.BFRP/HFRP布-混凝土界面黏结性能试验研究[J].东南大学学报(自然科学版),2010,40(3):554-558.[doi:10.3969/j.issn.1001-0505.2010.03.023]
 Shi Jiawei,Zhu Hong,Wu Zhishen,et al.Experimental study on bond behavior between Basalt/Hybrid FRP sheets and concrete substrates[J].Journal of Southeast University (Natural Science Edition),2010,40(3):554-558.[doi:10.3969/j.issn.1001-0505.2010.03.023]
点击复制

BFRP/HFRP布-混凝土界面黏结性能试验研究()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
40
期数:
2010年第3期
页码:
554-558
栏目:
土木工程
出版日期:
2010-05-20

文章信息/Info

Title:
Experimental study on bond behavior between Basalt/Hybrid FRP sheets and concrete substrates
作者:
施嘉伟 朱虹 吴智深 吴刚
东南大学城市工程科学国际研究中心,南京 210096; 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京 210096
Author(s):
Shi Jiawei Zhu Hong Wu Zhishen Wu Gang
International Institute for Urban Systems Engineering, Southeast University, Nanjing 210096, China
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
FRP 混杂纤维 玄武岩纤维 剥离 数字图像相关
Keywords:
FRP(fiber reinforced polymer) hybrid fiber basalt fiber debonding DIC(digital image correlation)
分类号:
TU375.02
DOI:
10.3969/j.issn.1001-0505.2010.03.023
摘要:
为了深入了解BFRP(玄武岩纤维增强复合材料)及HFRP(混杂FRP)布外贴加固混凝土结构的界面黏结性能,进行了单调荷载下BFRP/HFRP布-混凝土界面力学性能的试验研究.试验采用双面剪切试件的形式,利用数字图像相关(DIC)法测量FRP表面的应变分布.试验结果表明: 与同层数CFRP试件相比,BFRP-混凝土界面剥离承载力较低,但剥离破坏过程具有延性特征; 与碳纤维混杂后,HFRP-混凝土界面的承载力明显提高.基于该试验结果发现,最大界面断裂能、最大剪应力与FRP刚度存在着一定的相关性; 经过与应变片数据比较,证实了DIC法用于FRP-混凝土界面试验应变测量的可靠性.
Abstract:
In order to fully understand the interface behavior of concrete structures externally bonded with basalt FRP(fiber reinforced polymer)/hybrid FRP sheets, an experimental investigation into bond behavior between BFRP/HFRP sheets and concrete substrates is carried out. Double-lap shear specimens are employed and a digital image correlation(DIC)method is applied to capture the full-field strain of FRP sheets. Test results show that the load capacity of the BFRP-concrete interface is lower than that of the CFRP specimen with the same layer fiber sheet. The fracture debonding process of the BFRP specimen shows a characteristic of ductile failure. Compared with the BFRP specimen, the hybrid FRP sheets-concrete interface shows a large enhancement in load capacity. Base on the test results, it is found that there is a dependency between the maximum fracture energy, the maximum shear stress and the stiffness of FRP. A verification of the validity of the DIC results of the FRP-concrete interface tests is effected using strain gauge data.

参考文献/References:

[1] Wu Zhishen,Wang Xin,Iwashita K.State-of-the-art of advanced frp applications in civil infrastructure in Japan [C] //Composites and Polycon.Tampa,FL USA:American Composites Manufacturers Association,2007:1-13.
[2] 胡显奇,申屠年.连续玄武岩纤维在军工及民用领域的应用[J].高科技纤维与应用,2005,30(6):7-13.
  Hu Xianqi,Shen Tunian.The applications of the CBF in war industry and civil fields [J]. Hi-Tech Fiber and Application,2005,30(6):7-13.(in Chinese)
[3] 吴智深,吴刚,汪昕,等.玄武岩纤维在土建交通基础设施领域研究与应用若干新进展[J].工业建筑,2009,39(S1):1-14.
  Wu Zhishen,Wu Gang,Wang Xin,et al.New progress in R & D of basalt fibres and BFRP in infrastructure engineering[J].Industrial Construction,2009,39(S1):1-14.(in Chinese)
[4] 张敏,吴刚,蒋语楣,等.连续玄武岩纤维增强复合材料力学性能试验研究[J].高科技纤维与应用,2007,32(2):15-21.
  Zhang Min,Wu Gang,Jiang Yumei,et al.Experimental research on mechanical properties of continuous basalt fiber reinforced composites [J].Hi-Tech Fiber and Application,2007,32(2):15-21.(in Chinese)
[5] Cao Shenghu,Wu Zhishen,Wang Xin.Tensile properties of CFRP and hybrid FRP composites at elevated temperatures [J]. Journal of Composite Materials,2009,43(4):315-330.
[6] 杨勇新,杨萌,赵颜,等.玄武岩纤维布的耐久性试验研究[J].工业建筑,2007,37(6):11-13.
  Yang Yongxin,Yang Meng,Zhao Yan,et al.Experimental study on durability of basaltic fiber reinforced polymer [J].Industrial Construction,2007,37(6):11-13.(in Chinese)
[7] Wu Z,Wang X,Iwashita K,et al.Tensile fatigue behavior of FRP and hybrid FRP sheets [EB/OL].(2010)[2010-03-28].http://www.linkinghub.elsevier.com/retrieve/pii/S1359836810000168.
[8] 吴刚,顾冬生,吴智深,等.玄武岩纤维与碳纤维加固混凝土圆柱抗震性能比较研究[J].工业建筑,2007,37(6):19-23.
  Wu Gang,Gu Dongsheng,Wu Zhishen,et al.Comparative study on seismic performance of circler concrete columns strengthened with BFRP and CFRP composites [J]. Industrial Construction,2007,37(6):19-23.(in Chinese)
[9] Sim J,Park C,Moon D Y.Characteristics of basalt fiber as a strengthening material for concrete structures [J].Composites:Part B,2005,36(6/7):504-512.
[10] Japan Society of Civil Engineers(JSCE).JSCE-E-543-2000 Test method for bond properties of continuous fiber sheets to concrete [S].Tokyo,Japan:Research Committee on Upgrading of Concrete Structures with Use of Continuous Fiber Sheets,2001.
[11] 孙伟,何小元.数字图像相关方法在土木测试领域中的实验研究[J].南京航空航天大学学报,2009,41(2):271-275.
  Sun Wei,He Xiaoyuan.Experimental studies on application of digital image correlation in measuring field of civil engineering [J]. Journal of Nanjing University of Aeronautics and Astronautics,2009,41(2):271-275.(in Chinese)
[12] Wu Z S,Yuan H,Yoshizawa H.Experimental/analytical study on interfacial fracture energy and fracture propagation along FRP-concrete interface [J]. ACI International,2001(SP-201-8):133-152.
[13] 潘兵.数字图像相关方法及其在试验力学中的应用[D].北京:清华大学航天航空学院,2007.

备注/Memo

备注/Memo:
作者简介: 施嘉伟(1984—),男,博士生; 吴智深(联系人),男,博士,教授,博士生导师,zswu@mx.ibaraki.ac.jp.
基金项目: “十一五”国家科技支撑计划资助项目(2006BAJ03B07)、江苏省自然科学基金资助项目(BK2009288)、江苏建设系统(建筑业)科研计划资助项目(JG2007-16).
引文格式: 施嘉伟,朱虹,吴智深,等.BFRP/HFRP布-混凝土界面黏结性能试验研究[J].东南大学学报:自然科学版,2010,40(3):554-558. [doi:10.3969/j.issn.1001-0505.2010.03.023]
更新日期/Last Update: 2010-05-20