Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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An Experimental Study on Flexural Performance Evaluation of C-Shaped Steel-Timber Composite Beams

C형 강재-목재 합성보의 휨성능 평가에 관한 실험 연구

  • 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)
  • Received : 2024.02.06
  • Accepted : 2024.05.02
  • Published : 2024.06.20
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Abstract

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.

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.

Keywords

Acknowledgement

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

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