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Materials and Structures

, 51:9 | Cite as

Experimental study on flexural performance of glued-laminated-timber-bamboo beams

  • Qingfeng Xu
  • Yubing Leng
  • Xi Chen
  • Kent A. Harries
  • Lingzhu Chen
  • Zhuolin Wang
Original Article
  • 257 Downloads

Abstract

Engineered bamboo, produced through the technique of gluing and reconstituting, has better mechanical properties than round bamboo and some wood products. This paper studies the flexural performance of laminated beams produced with timber and engineered bamboo. The six-layer beams were made from Douglas fir, spruce, bamboo scrimber and laminated bamboo, or a combination of these. It is confirmed that glued-laminated wood beams produced with wood of weak strength, like spruce, can be strengthened by gluing engineered bamboo lumbers on the outer faces, thus achieving better utilization of the fast growing economic wood species. Flexural failure of the laminated beams was primarily triggered by tensile fracture of the bottom fiber in mid-span, followed by horizontal tearing beside the broken surface. No relative slip between layers was observed before failure, therefore the flexural capacity of the laminated beams can be predicted using equilibrium and compatibility conditions according to the plane section assumption.

Keywords

Engineered bamboo Bamboo scrimber Timber Laminated beams Flexural performance 

Notes

Acknowledgements

The authors gratefully acknowledge the financial support from the National Key R&D Program of China (Grant No. 2017YFC0703503), and R&D Project of Ministry of Housing and Urban–Rural Development of People’s Republic of China (Grant No. 2016-K5-017).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11527_2017_1135_MOESM1_ESM.pdf (193 kb)
Supplementary material 1 (PDF 193 kb)
11527_2017_1135_MOESM2_ESM.pdf (37 kb)
Supplementary material 2 (PDF 37 kb)
11527_2017_1135_MOESM3_ESM.pdf (40 kb)
Supplementary material 3 (PDF 39 kb)

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Copyright information

© RILEM 2018

Authors and Affiliations

  • Qingfeng Xu
    • 1
  • Yubing Leng
    • 1
    • 2
  • Xi Chen
    • 1
  • Kent A. Harries
    • 3
  • Lingzhu Chen
    • 1
  • Zhuolin Wang
    • 1
  1. 1.Shanghai Key Laboratory of Engineering Structure SafetyShanghai Research Institute of Building SciencesShanghaiChina
  2. 2.School of Naval Architecture, Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghaiChina
  3. 3.Department of Civil and Environmental EngineeringUniversity of PittsburghPittsburghUSA

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