Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 29, Issue -, Pages 24-32Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2011.10.002
Keywords
Compressed wood; Glulam; Moisture-dependent swelling; Pre-camber; Pre-stressing; Reinforcement
Categories
Funding
- Higher Education Directorate General, Ministry of National Education, Republic of Indonesia
- Laboratory of Structural Function, RISH, Kyoto University
Ask authors/readers for more resources
In this study, glulam beams were strengthened by inserting compressed wood (CW) blocks into the pre-cut rectangular holes with one-thirds of the beam depth from the top of the beams. This practice was to make use of moisture-dependent swelling nature of the compressed wood which was conditioned with the moisture content significantly lower than the ambient one. The test results showed that a pre-camber was produced in the mid-span of the beam reinforced due to expansion of the compressed wood blocks on the top part of the beam. As a result, significant initial tensile and compressive stresses were generated on both the top and the bottom extreme fibres of the beam, respectively. Subsequent bending tests revealed that the initial stiffness and load carrying capacity of the pre-stressed beams were increased significantly in comparison to the beam without pre-stressing. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available