Journal of Korean Tunnelling and Underground Space Association (한국터널지하공간학회 논문집)

Korean Tunnelling and Underground Space Association (한국터널지하공간학회)
권호 표지
DOI QR코드

DOI QR Code

Study on mechanical behavioral characteristics of FRP-concrete composit member considering interface element between FRP and concrete

계면특성을 고려한 FRP와 콘크리트 복합부재의 역학적 거동특성 분석 연구

  • 이규필 (한국건설기술연구원 지하구조물연구실) ;
  • 박영택 (한국건설기술연구원 지하구조물연구실) ;
  • 황재홍 (주식회사대림조 토목본부) ;
  • 김동규 (한국건설기술연구원 지하구조물연구실)
  • Received : 2012.10.16
  • Accepted : 2012.10.31
  • Published : 2012.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

Utilization of fiber reinforced polymer(FRP) material has been increased to solve construction material problems such as corrosion, etc. However, there are still many problems in using a linear-shaped FRP material for a tunnel structure with curved section. In this study, the loading tests were performed on the curved FRP-concrete composite material to evaluate its behavior as tunnel support. These tests were based on the result from preliminary numerical analysis on FRP-concrete composite material. Also, additional numerical analysis considering interface characteristics between FRP and cement-concrete was conducted to compare the result of loading test on FRP-concrete composite material. From the results of the loading test and numerical analysis, the analysis method suggested from this study is reasonable to evaluate the mechanical behavior of FRP-concrete composite material.

강재의 강지적인 사용으로 인한 부식 등과 같은 문제점을 보완할 수 있는 대체 재료로서, 섬유강화 복합재료의 활용이 증대되고 있다. 하지만 일반적으로 선형의 섬유강화 복합재료를 아치형인 터널구조물의 부재로서 활용하는 데는 많은 문제점이 대두된다. 본 연구에서는 FRP 복합부재의 거동특성 파악을 위해 FRP와 콘크리트 합성부재에 대한 하중재하 실험을 수행하였다. 또한 역학적 거동분석을 위하여 동일 조건에 대한 수치해석을 수행하였다. 하중재하 실험 및 수치해석결과, FRP와 콘크리트 계면특성을 고려하는 것이 보다 합리적인 해석방법인 것으로 나타났다.

Keywords

References

  1. EFNARC (1996), European Specification for Sprayed Concrete.
  2. Korea Institute of Construction Technology (2006), Development of Long-Life Deck System for Bridges-Steel Free Deck, KICT Report No. 2006-67, pp. 49-209.
  3. Korea Standards Association (2012), KS F 4042:2012 Polymer modified cement mortar for maintenance in concrete structure.
  4. L. C. Hollaway. A review of the present and future utilization of FRP composites in the civil infrastructure with reference to their important in-service properties. Construction and Building Materials 2010; 24: 2419-2445. https://doi.org/10.1016/j.conbuildmat.2010.04.062
  5. Lee, G.P., Kim, D.G., Bae, G.J. Chang, S.H. (2005), "Test methods of adhesion strength of shotcrete for quality control", Journal of Korean Society of Civil Engineers, Vol. 25, No. 2C, pp. 125-131.
  6. Lee, G.P., Shin, H.S. (2010), "A numerical study on feasibility of the circled fiber reinforced polymer(FRP) panel for a tunnel lining structure", Journal of Korean Tunnelling and Underground Space Association, Vol. 12, No. 6, pp. 451-461.
  7. Lee, G.P., Shin, H.S., Kim, S.H. (2011), "A study on the optimum condition of FRP coarse-sand coating by using a new testing method for shear bearing capacity of FRP-concrete interface". Journal of Korean Tunnelling and Underground Space Association, Vol. 13, No. 3, pp. 277-289.
  8. Lee, G.P., Shin, H.S., Kim, S.H. (2011), "Study on mechanical behavioral characteristics of the curved FRP-concrete composite member for utilization as a tunnel lining structure", Journal of Korean Tunnelling and Underground Space Association, Vol. 13, No. 2, pp. 149-158.

Cited by

  1. Effect of Freezing and Thawing on Adhesion of Cement Concrete with Coarse-sand Coated FRP vol.17, pp.2, 2013, https://doi.org/10.11112/jksmi.2013.17.2.117