GFRP 보강근으로 겹침이음된 휨 부재의 거동에 관한 실험적 연구Experimental Study on Behavior of Flexural Member with Lab-Spliced GFRP Bar
- Other Titles
- Experimental Study on Behavior of Flexural Member with Lab-Spliced GFRP Bar
- Authors
- 최윤철; 최현기; 최창식
- Issue Date
- Apr-2011
- Publisher
- 대한건축학회
- Keywords
- GFRP Reinforcing Bar; Concrete Beam; Flexural Behavior; Lab-spliced; GFRP 보강근; 콘크리트 보; 휨 거동; 겹침이음
- Citation
- 대한건축학회논문집 구조계, v.27, no.4, pp.3 - 10
- Indexed
- KCI
- Journal Title
- 대한건축학회논문집 구조계
- Volume
- 27
- Number
- 4
- Start Page
- 3
- End Page
- 10
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/168699
- ISSN
- 1226-9107
- Abstract
- The use of glass-fiber-reinforced polymer (GFRP) bars in reinforced concrete (RC) structures has emerged as an alternative to traditional RC due to the corrosion of steel in aggressive environments. Although the number of analytical and experimental studies on RC beams with GFRP reinforcement has increased in recent decades, it is still lower than the number of such studies related to steel RC structures.
This paper presents the experimental moment deflection relations of reinforced beam with spliced GFRP bars. Test variables were lab-spliced length of GFRP rebars. The development length was calculated according to the ACI 440 for GFRP rebars in concrete. A total of 6 concrete beams reinforced with steel and GFRP rebar tested. Three concrete beam reinforced with spliced GFRP rebars and 1 reference beams reinforced with non-spliced GFRP rebars were tested. All the specimens had a span of 4000mm, provided with 12.7mm nominal diameter steel and GFRP rebars. All test specimens were tested under 2-point loads so that the spliced region be subject to constant moment. The test results indicated that the modification factor of 1.6 and 1.75 is relatively sufficient for the bond development length of GFRP rebars archiving adequate tension lap splice length
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