Probabilistic assessment of FRP-confined reinforced concrete columns

被引：23
作者：
Baji, Hassan [1 ]
Ronagh, Hamid Reza [2 ]
Li, Chun-Qing [1 ]
机构：
[1] RMIT Univ, Sch Engn Civil Environm & Chem Engn, 376 Swanston St, Melbourne, Vic, Australia
[2] Univ Western Sydney, Inst Infrastruct Engn, Locked Bag 1797, Penrith, NSW 2751, Australia
来源：
COMPOSITE STRUCTURES | 2016年 / 153卷
关键词：
Fibre Reinforced Polymers (FRP); Reinforced concrete columns; Reliability; Design guidelines; Resistance reduction factor; AXIAL COMPRESSIVE BEHAVIOR; STRESS-STRAIN MODEL; RELIABILITY-ANALYSIS; CIRCULAR SECTIONS; STRENGTH; COMPOSITE; DESIGN; CYLINDERS; VARIABILITY; DUCTILITY;
D O I：
10.1016/j.compstruct.2016.07.003
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
This paper presents a reliability study on reinforced concrete (RC) columns retrofitted by Fibre Reinforced Polymers (FRP) confinement. First, variability of the compressive resistance of FRP-confined RC columns considering uncertainty in the model error, material properties, section dimensions, FRP strain efficiency factor and minimum load eccentricity as well as any existing correlation among random variables was studied. Then, reliability of FRP-confined RC columns designed based on the ACI 440 and the fib bulletin 14 guidelines was investigated. Results showed that in order to achieve the target reliability used in design of conventional RC columns, resistance reduction factors of these guidelines require modification. For the design of FRP-confined RC columns, a resistance reduction factor of 0.85 for the ACI 440 guideline and a partial safety factor of 1.45 for the fib bulletin 14 are suggested. (C) 2016 Elsevier Ltd. All rights reserved.
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页码：851 / 865
页数：15
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