Numerical simulation of FRP-strengthened RC slabs anchored with FRP anchors

被引：25
|
作者：
Yang, Jia-Qi [1 ]
Smith, Scott T. [2 ]
Wang, Zhenyu [3 ,4 ]
Lim, Yee Yan [2 ]
机构：
[1] Country Garden Grp, Foshan, Guangdong, Peoples R China
[2] Southern Cross Univ, Sch Environm Sci & Engn, Lismore, NSW 2480, Australia
[3] Harbin Inst Technol, Key Lab Struct Dynam Behav & Control, Minist Educ, Harbin, Heilongjiang, Peoples R China
[4] Harbin Inst Technol, Sch Civil Engn, Harbin, Heilongjiang, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 172卷
基金：
澳大利亚研究理事会; 中国国家自然科学基金;
关键词：
Anchors; Debonding; Fibre-reinforced polymer (FRP) composites; Finite elements; Reinforced concrete; Strengthening; REINFORCED-CONCRETE BEAMS; 2 ADJACENT CRACKS; MODEL; INTERFACES; BEHAVIOR; JOINTS; DAMAGE; CFRP;
D O I：
10.1016/j.conbuildmat.2018.03.133
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Reinforced concrete (RC) members such as beams and slabs can be strengthened in flexure by bonding fibre-reinforced polymer (FRP) composite plates to their tension face. Experimental studies have shown that anchorage of the FRP plates with anchors made from FRP (i.e. FRP anchors) can delay and even eliminate premature debonding failure. This paper reports on the finite element (FE) analysis of a series of FRP-strengthened RC test slabs anchored with FRP anchors. Prior to introducing the FE modelling strategy, a semi-empirical load-slip model is proposed for modelling the FRP anchors. The load-slip model, which is calibrated from FRP-to-concrete joint tests, is novel and is also essential for the analysis of the slabs. The numerically simulated results of load, deflection and strain for the test slabs are shown to be in good agreement with test measurements. The results help provide needed insight to the influence of FRP anchors upon FRP-strengthened members. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：735 / 750
页数：16
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