DOI QR코드

DOI QR Code

C형 강재-목재 합성보의 휨성능 평가에 관한 실험 연구

An Experimental Study on Flexural Performance Evaluation of C-Shaped Steel-Timber Composite Beams

  • 오근영 ;
  • 이상섭 ;
  • 박금성 ;
  • 부윤섭
  • Oh, Keunyeong (Dept. of Building Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Lee, Sang-Sup (Dept. of Building Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Park, Keum-Sung (Dept. of Building Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Boo, Yoon-Seob (Dept. of Building Research, Korea Institute of Civil Engineering and Building Technology)
  • 투고 : 2024.02.06
  • 심사 : 2024.05.02
  • 발행 : 2024.06.20

초록

본 연구에서는 구조용 집성재 보의 휨강도 및 연성능력을 보완하고자 강재-목재 합성보의 휨성능을 평가하였다. 실험체는 구조용 집성재 보 1식과 강재-목재 합성보 2식으로 구성하였다. 강재-목재 합성보는 부착 방법에 따라 액상형 접착제와 나사못을 사용하여 휨성능을 평가하였다. 실험결과, 강재-목재 합성보는 구조용 집성재 보에 비하여 구조성능이 약 2~3배 높아 휨강도 및 연성능력이 충분히 확보된 것으로 나타났다. 또한, 액상형 접착제를 사용한 경우가 나사못을 적용한 실험체에 비하여 우수한 구조성능을 보여주었다.

In this study, the flexural strength and ductility of steel-timber composite beams were evaluated to enhance the structural performance of glued-laminated timber beams. Three specimens were fabricated, including one reference glulam beam and two composite beams. The composite beams were constructed by attaching steel sections to the glulam beam using either liquid adhesive or screws. The experimental results showed that the structural performance of the steel-timber composite beams was approximately 2-3 times higher than the reference glulam beam, indicating that both flexural strength and ductility were sufficiently ensured. Notably, the specimen constructed with liquid adhesive demonstrated superior structural performance compared to the screw-attached specimen.

키워드

과제정보

Research for this paper was carried out under the KICT Research Program(project no. 20240061-001) funded by the Ministry of Science and ICT.

참고문헌

  1. Park KS, Oh K. Experimental study on pull-out strength of glued-in rods connection according to adhesive. Journal of the Korea Institute of Building Construction. 2022 Apr;22(2):149-60. https://doi.org/10.5345/JKIBC.2022.22.2.149 
  2. Al-Katib HA, Alkhudery HH, Al-Tameemi HA. Structural behavior of standard timer beams strengthened using CFRP sheet. Asian Journal of Civil Engineering. 2022 May;23:727-39. https://doi.org/10.1007/s42107-022-00452-w 
  3. Zhang C, Chun Q, Wang H, Shi J. Experimental study on the flexural behaviour of timber beams strengthened with high ductility and low cost hybrid fibre sheets. Construction and Building Materials. 2022 Mar;322:126514. https://doi.org/10.1016/j.conbuildmat.2022.126514 
  4. Murakami K, Satoh A, Takeda K, Yamauchi S. Flexural Reinforcing Effect of Timber Beam by Embedding CFRP Rod. AIJ Journal of Technology and Design. 2022 Jun;28(69):580-4. https://doi.org/10.3130/aijt.28.580 
  5. Yoresta FS, Nugroho N. Strengthening of timber beam with cold-formed steel plates. International Journal of Sustainable Construction Engineering and Technology. 2023 Feb;14(1):306-14. https://doi.org/10.30880/ijscet.2023.14.01.028 
  6. Jang SS, Kim YH, Jang YI. Mechanical properties of composite materials composed of structural steel and structural glued laminated timber. Journal of the Korean Wood Science and Technology. 2009 Jan;37(4):300-9. 
  7. Kim SC, Yang IS. Experimental Study on Joints of Flexural Member Consisting Structural Laminated Timber with H-beam in Wooden Structure. Journal of the Architectural Institute of Korea Structure & Construction. 2006 Apr;22(4):95-102. 
  8. Kim SC, An HJ, Yang IS. Structural performance by strengthening types of wood frames with joints consisted of structural laminated timber and steel member. Journal of the Architectural Institute of Korea Structure & Construction. 2008 Mar;24(3):19-26. 
  9. Park KS, Lee SS, Kwak MK. Experimental evaluation of shear bonding performance of wood-steel composite members. Journal of the Korean Association for Spatial Structures. 2019 Dec;19(4):53-60. https://dx.doi.org/10.9712/KASS.2019.19.4.53 
  10. Park KS, Lee SS, Kwak MK. Evaluation on flexural performance of steel plate reinforced GLT beams. Journal of the Korean Association for Spatial Structures. 2020 Jun;20(2):39-49. https://dx.doi.org/10.9712/KASS.2020.20.2.39 
  11. KS F 3021. Structural glued laminated timber. Eumseong (Korea): Korean Agency for Technology and Standards; 2018. 19 p. 
  12. KDS 41 50 10. Timber structure materials and allowable stress. Goyang (Korea): Korea Construction Standards Center; 2022. 1-13 p. 
  13. KDS 41 30 10. Steel structure design standards for buildings. Goyang (Korea): Korea Construction Standards Center; 2022. 13-16 p.