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A Structural Performance Evaluation of Timber Beam-Column Connections using Steel Connectors

강재 연결재를 이용한 목구조 기둥-보 접합부의 구조성능 평가

  • Park, Keum-Sung (Dept. of Building Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Oh, Keun-Yeong (Dept. of Building Research, Korea Institute of Civil Engineering and Building Technology)
  • 박금성 (한국건설기술연구원 건축연구본부) ;
  • 오근영 (한국건설기술연구원 건축연구본부)
  • Received : 2021.08.23
  • Accepted : 2022.03.10
  • Published : 2022.03.30

Abstract

The purpose of this study is to develop a moment frame system of a mixed structure consisting of a beam-column connection made of timber and a filling wall while verifying the structural performance of the beam-column connection using steel. The reinforcing rebar embedded on the inside of the timber beam consisted of an internal and external connection. Two connections were fabricated for each shape, and a lateral loading test was performed. The results of this experiment indicated that as the deformation of the inner and outer connections increased, repeated attachment and bearing failure occurred on the part embedded at the end of the timber beam. In addition, the fracture phenomenon of slipping was observed on the contact surface between the upper and lower flange plates of joined steel and the timber beam. While comparing the experimental behavior and the allowable bending moment of the timber beam, it was revealed that the intermediate moment frame (0.02 rad) performance of the internal connection was sufficiently secured. However, the external connection was found to be inadequate to secure the performance of the intermediate moment frame. For the beam-column connection using steel to exhibit special moment framing performance, the embedded length of the reinforcing bar embedded in the cross section of the timber beam needs to be sufficient.

Keywords

Acknowledgement

이 연구는 2021년도 국토교통과학기술진흥원의 도시건축연구사업 연구비 지원에 의한 결과의 일부임. 과제번호:No.20AUDPB146511-04

References

  1. Park, A., & Lee, K. (2019). Experimental and Analytical Study of Shear Connectors for the CLT-Concrete Composite Floor System, Journal of Korean Association for Spatial Structures, 19(1), 65~73. https://doi.org/10.9712/KASS.2019.19.1.65
  2. Priestley, M. J. N. (1991). Overview of the PRESSS Research Program, PCI Journal 36(4), 50~57. https://doi.org/10.15554/pcij.07011991.50.57
  3. Priestley, M. J. N. (1996). The PRESSS Program - current status and proposed plans for phase III, PCI Journal 41(2), 22~40. https://doi.org/10.15554/pcij.03011996.22.40
  4. Christopoulos, C., Filiatrault, A., Uang, C. M., & Folz, B. (2002). Post-tensioned energy dissipating connections for moment resisting steel frames, ASCE Journal of Structural Engineering 128(9), 1111~1120. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1111)
  5. Palermo, A., Pampanin, S., Fragiacomo, M., Buchanan, A. H., & Deam, B. L. (2006a). Innovative seismic solutions for multi-storey LVL timber buildings, Proc. of 9th World Conference on Timber Engineering, Portland, Oregon, CD-ROM.
  6. Palermo, A., Pampanin, S., & Buchanan, A. (2006b). Experimental investigations on LVL seismic resistant wall and frame subassemblies, Proc. of First European Conference on Earthquake Engineering and Seismology, Geneva, Switzerland, CD-ROM.
  7. SNZ (2006). NZS 3101. Concrete Structures Standard, Appendix B: Special provisions for the seismic design of ductile jointed precast concrete structural systems, Standards New Zealand,Wellington, New Zealand.
  8. Lee, K., Oh, J., Kim, S., Yang, I., & An, H. (2018). Development of Composite Joint Consisting of H Section Steel and Structural Glued Laminated Timber, Journal of the korea society for advanced composite structures, 9, 98~105. https://doi.org/10.11004/kosacs.2018.9.3.98
  9. Korea Industrial Standards (2018a). Structural Glued Laminated Timber (KS F 3021), Korea.
  10. Ministry of Land, Transport and Maritime Affairs (2016). Building Structure Standards, 2016-1245, Korea.
  11. Korea Industrial Standards (2017a). Test Pieces for Tensile Test for Metallic Materials (KS B 0801), Korea.