Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Evaluation of The Moment Resistance of Reinforced Wooden Gusset to Glulam Joint

보강목질적층판이 사용된 집성재 접합부의 모멘트 저항성능 평가

  • Lee, In-Hwan (Program of Forest Biomaterials Engineering, Division of Forest Material Science & Engineering, Kangwon National University) ;
  • Song, Yo-Jin (Program of Forest Biomaterials Engineering, Division of Forest Material Science & Engineering, Kangwon National University) ;
  • Hong, Soon-Il (Program of Forest Biomaterials Engineering, Division of Forest Material Science & Engineering, Kangwon National University)
  • 이인환 (강원대학교 산림환경과학대학 산림응용공학부 산림바이오소재공학전공) ;
  • 송요진 (강원대학교 산림환경과학대학 산림응용공학부 산림바이오소재공학전공) ;
  • 홍순일 (강원대학교 산림환경과학대학 산림응용공학부 산림바이오소재공학전공)
  • Received : 2016.10.17
  • Accepted : 2016.12.09
  • Published : 2017.01.25
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Abstract

In this study, specimens were produced with a column member and a wooden gusset only by inserting an wooden gusset which is a substitute for steel plate into the center of a slit-processed column member. The moment resistance performance of the specimens was compared with that of control specimens that used a steel plate. The measured maximum moments of the specimens produced with GFRP-reinforced wooden laminated gussets and pins were lower by 24% on average compared to the steel plate-inserted specimens, but they showed good toughness. The fracture shape suggests that it was fractured along the annual rings between the pin and the end of the column member. The rigid specimen that integrated a laminated wood and a wooden laminated gusset with adhesive showed 2.8 times greater initial rigidity and 40% greater maximum moment on average compared to the control specimen. The rigid specimens mainly fractured on a glulam around glue line.

본 연구에서는 고강성, 고인성의 경량화된 목질접합부를 제작하기 위하여 슬릿 가공된 기둥부재 중앙에 강판 대용인 목질접합물을 삽입하고 기둥부재와 목질접합물만 결합된 시험편들을 제작하였다. 시험편들은 강판을 사용한 대조군 시험편과 모멘트 저항성능을 비교분석하였다. GFRP보강목질적층판과 핀으로 제작된 시험편들은 강판삽입형 시험편 보다 평균 24% 저하된 최대모멘트가 측정되었으나 양호한 인성이 관찰되었다. 파괴형상은 기둥부재의 연단부분에서 연륜을 따라 파괴되었다. 집성재와 목질적층판을 접착제로 일체화한 강절형 시험편은 대조군 시험편보다 초기강성이 2.8배 향상되었고, 최대모멘트도 평균 40% 향상된 경향을 보였다. 강절형 시험편들은 접착층 주위에서 파단되었다.

Keywords

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