Bond behavior of near surface mounted CFRP rods under temperature cycling

被引：19
作者：
Lee, Heeyoung [1 ]
Jung, WooTai [2 ]
Chung, Wonseok [1 ]
机构：
[1] Kyung Hee Univ, Dept Civil Engn, Yongin 17104, Gyeonggi, South Korea
[2] Korea Inst Construct Technol, Goyangsi 10223, Gyeonggi, South Korea
来源：
ENGINEERING STRUCTURES | 2017年 / 137卷
基金：
新加坡国家研究基金会;
关键词：
Near surface mounted; Carbon fiber reinforced polymer rod; Bond behavior; Temperature variation; Filler; Temperature cycles; Pullout test; NSM FRP BARS; CONSTRUCTION DETAILS; STRENGTH;
D O I：
10.1016/j.engstruct.2017.01.057
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A near surface mounted (NSM) strengthening technique using CFRP rods has been developed to increase the load-carrying capacity of deteriorating concrete structures compared to that possible with traditional external bonding techniques. This paper investigates the bonding behavior between the CFRP rod and the concrete under temperature cycling when the near surface mounted (NSM) strengthening technique is applied. A total of 27 pullout specimens were fabricated and tested to investigate the effects upon filling materials of applying various numbers of temperature cycles from -15 to 55 degrees C, The test results included failure load, average bond stress, strains in CFRP bar, and failure mode. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：67 / 75
页数：9
相关论文
共 28 条
[1]   Interfacial stress transfer of near surface-mounted FRP-to-concrete joints [J].
Ali, M. S. Mohamed ;
Oehlers, D. J. ;
Griffith, M. C. ;
Seracino, R. .
ENGINEERING STRUCTURES, 2008, 30 (07) :1861-1868
[2]  
[Anonymous], 2007, STAND SPEC CONCR STR
[3]  
[Anonymous], 2003, 440 AM CONCR I
[4]   Tensile properties and pullout behaviour of AFRP and CFRP rods for grouted anchor applications [J].
Benmokrane, B ;
Zhang, BR ;
Chennouf, A .
CONSTRUCTION AND BUILDING MATERIALS, 2000, 14 (03) :157-170
[5]   Bond Efficiency of EBR and NSM FRP Systems for Strengthening Concrete Members [J].
Bilotta, A. ;
Ceroni, F. ;
Di Ludovico, M. ;
Nigro, E. ;
Pecce, M. ;
Manfredi, G. .
JOURNAL OF COMPOSITES FOR CONSTRUCTION, 2011, 15 (05) :757-772
[6]   A modified pull-out test for bond of near-surface mounted FRP rods in concrete [J].
De Lorenzis, L ;
Rizzo, A ;
La Tegola, A .
COMPOSITES PART B-ENGINEERING, 2002, 33 (08) :589-603
[7]  
De Lorenzis L, 2004, ACI STRUCT J, V101, P269
[8]   Near-surface mounted FRP reinforcement: An emerging technique for strengthening structures [J].
De Lorenzis, L. ;
Teng, J. G. .
COMPOSITES PART B-ENGINEERING, 2007, 38 (02) :119-143
[9]   THERMAL-STABILITY OF SEGMENTED POLYURETHANES [J].
FERGUSON, J ;
PETROVIC, Z .
EUROPEAN POLYMER JOURNAL, 1976, 12 (03) :177-181
[10]   Bond and flexural behavior of concrete elements strengthened with NSM CFRP laminate strips under fatigue loading [J].
Fernandes, Pedro M. G. ;
Silva, Patricia M. ;
Sena-Cruz, Jose .
ENGINEERING STRUCTURES, 2015, 84 :350-361
123