Performance of CFRP-steel joints enhanced with bi-directional CFRP fabric

被引：25
作者：
Al-Mosawe, Alaa [1 ]
Al-Mahaidi, Riadh [1 ]
机构：
[1] Swinburne Univ Technol, Hawthorn, Vic 3122, Australia
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 197卷
关键词：
CFRP-steel; Double-strap joints; CFRP anchorage system; CFRP laminate; Bond-slip; Bi-directional fibers; DOUBLE-STRAP JOINTS; BOND CHARACTERISTICS; TEMPERATURE; STRENGTH; COLUMNS; MEMBERS; BEAMS; TUBES;
D O I：
10.1016/j.conbuildmat.2018.11.235
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Carbon fiber reinforced polymers (CFRPs) have gained popularity and become recognized as a prominent material for engineering applications in the last few decades owing to their high strength-to- weight ratio, resilience and corrosion resistance. The key concern is the bond between the CFRP and steel elements. The type of CFRP utilized in strengthening systems is dependent on the amount of deterioration to which a structure is subjected. This paper reports the results of an experimental analysis of five sets of specimens, consisting of 75 samples in total, to investigate the bond properties between steel and CFRP using a new anchorage configuration. The anchorage system is utilized to delay or counter the effect of debonding of the joints. The results show that the utilization of bidirectional normal modulus CFRP sheets in conjunction with laminates increases the ultimate strength of the joint by approximately 89%. The bond-slip curve is also derived in this study. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：72 / 82
页数：11
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