Experimental response of FRP reinforced members without transverse reinforcement: Failure modes and design issues

被引：38

作者：

Acciai, Andrea ^{[1
]}

D'Ambrisi, Angelo ^{[1
]}

De Stefano, Mario ^{[1
]}

Feo, Luciano ^{[2
]}

Focacci, Francesco ^{[3
]}

Nudo, Raffaele ^{[1
]}

机构：

[1] Univ Florence, Dipartimento Architettura, Piazza Brunelleschi 6, I-50121 Florence, Italy

[2] Univ Salerno, Dipartimento Ingn Civile, Via Ponte Don Melillo, I-84084 Fisciano, SA, Italy

[3] Univ eCampus, Via Isimbardi 10, I-22060 Novedrate, CO, Italy

来源：

COMPOSITES PART B-ENGINEERING | 2016年 / 89卷

关键词：

Polymer-matrix composites (PMCs); Reinforced concrete; Analytical modeling; Mechanical testing; FLEXURAL BEHAVIOR; CONCRETE BEAMS; MASONRY ARCHES; BOND STRENGTH; REBARS; DEFLECTION; TORSION; COVER;

D O I：

10.1016/j.compositesb.2016.01.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

FRP reinforcement is well known as a possible alternative to steel bars in order to improve durability of reinforced concrete members. However, the intrinsic brittleness of concrete and FRP materials may induce problems at the ultimate conditions due to premature failure modes; the performance under service loads is a critical issue as well. To investigate response of concrete members reinforced with longitudinal glass or carbon FRP bars without shear reinforcement, an experimental program has been developed. The sixteen specimens designed and cast within this project were characterized by different study variables concerning cross section geometry, concrete grade and type of reinforcement. The results of tests performed on FRP-reinforced specimens are presented in this paper. In particular, different failure modes due to flexure and shear have been observed; response under load levels simulating service conditions has been also examined. Results of FRP-reinforced specimens have been compared with those given by control specimens provided with conventional steel bars. Finally, analytical procedures to evaluate immediate deflections of FRP-reinforced members have been assessed. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：397 / 407

页数：11

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