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Experimental Study of Flexural Behavior of Steel Beam Strengthened with the Fiber Reinforced Polymer Plastic(FRP) Strips

섬유보강플라스틱(FRP) 스트립으로 보강한 철골보의 휨거동에 관한 실험적연구

  • Choi, Sung Mo (School of Architecture, University of Seoul) ;
  • Park, Jai Woo (Korea Infrastructure Safety Corporation, Research division, Dept. of Architectural engineering)
  • 최성모 (서울시립대학교 건축학부) ;
  • 박재우 (한국시설안전공단 시설안전연구소, 광운대학교 건축공학과)
  • Received : 2013.12.26
  • Accepted : 2014.03.10
  • Published : 2014.04.27

Abstract

This paper presents the experimental results of flexural behavior of steel beam strengthened with fiber reinforced polymer plastic (FRP) strips subjected to static bending loading. Four H beams were fabricated strengthened with aramid strips and carbon strips and one control specimen were also fabricated. Among them two specimens were strengthened with partial length. The H-beams had two types of failure mode, depending on the length of the FRP strips:(1) strip debonding in beams with partial length reinforcement and (2) strip rupture in beams with full length reinforcement. From the test, it was observed that maximum increase of 16% was also achieved in bending-load capacity.

Acknowledgement

Grant : FRP(Fiber Reinforced Plastic)를 이용한 철골구조물 휨성능 보강

Supported by : 서울시립대학교

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