Impact Behavior of FRP-Strengthened RC Beams without Stirrups

This study investigates the impact behavior of fiber-reinforced polymer (FRP)-strengthened reinforced concrete (RC) beams and FRP contribution to shear strength. Thirteen RC beams (1,500×150×250 mm) were tested against static and impact loads. The beams were strengthened with FRP U-wraps and 45°-ang...

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Main Authors: Pham, T., Hao, Hong
Format: Journal Article
Published: American Society of Civil Engineers 2016
Online Access:http://hdl.handle.net/20.500.11937/16336
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author Pham, T.
Hao, Hong
author_facet Pham, T.
Hao, Hong
author_sort Pham, T.
building Curtin Institutional Repository
collection Online Access
description This study investigates the impact behavior of fiber-reinforced polymer (FRP)-strengthened reinforced concrete (RC) beams and FRP contribution to shear strength. Thirteen RC beams (1,500×150×250 mm) were tested against static and impact loads. The beams were strengthened with FRP U-wraps and 45°-angle wraps to investigate the effectiveness of different wrapping schemes. The experimental results show that the debonding strain of FRP under impact loads is slightly smaller than that under static loads. The FRP contribution to shear strength is discussed and verified against a design code. In terms of using the same amount of FRP, 45°-angle FRP wraps provide better performance than the FRP U-wraps in terms of both the load capacity and displacement. Fully wrapping a RC beam with FRP is more efficient than wrapping distributed FRP strips. The impact behavior and failure modes of FRP strengthened RC beams are also discussed.
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institution Curtin University Malaysia
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publishDate 2016
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spelling curtin-20.500.11937-163362017-09-13T15:04:07Z Impact Behavior of FRP-Strengthened RC Beams without Stirrups Pham, T. Hao, Hong This study investigates the impact behavior of fiber-reinforced polymer (FRP)-strengthened reinforced concrete (RC) beams and FRP contribution to shear strength. Thirteen RC beams (1,500×150×250 mm) were tested against static and impact loads. The beams were strengthened with FRP U-wraps and 45°-angle wraps to investigate the effectiveness of different wrapping schemes. The experimental results show that the debonding strain of FRP under impact loads is slightly smaller than that under static loads. The FRP contribution to shear strength is discussed and verified against a design code. In terms of using the same amount of FRP, 45°-angle FRP wraps provide better performance than the FRP U-wraps in terms of both the load capacity and displacement. Fully wrapping a RC beam with FRP is more efficient than wrapping distributed FRP strips. The impact behavior and failure modes of FRP strengthened RC beams are also discussed. 2016 Journal Article http://hdl.handle.net/20.500.11937/16336 10.1061/(ASCE)CC.1943-5614.0000671 American Society of Civil Engineers restricted
spellingShingle Pham, T.
Hao, Hong
Impact Behavior of FRP-Strengthened RC Beams without Stirrups
title Impact Behavior of FRP-Strengthened RC Beams without Stirrups
title_full Impact Behavior of FRP-Strengthened RC Beams without Stirrups
title_fullStr Impact Behavior of FRP-Strengthened RC Beams without Stirrups
title_full_unstemmed Impact Behavior of FRP-Strengthened RC Beams without Stirrups
title_short Impact Behavior of FRP-Strengthened RC Beams without Stirrups
title_sort impact behavior of frp-strengthened rc beams without stirrups
url http://hdl.handle.net/20.500.11937/16336