Experimental study on the performance of notched round timber sections

Dewey, Justin, Tuladhar, Rabin, and Sivakugan, Nagaratnam (2019) Experimental study on the performance of notched round timber sections. Journal of Building Engineering, 25. 100840.

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Abstract

Round timber beams are generally notched at the ends for seating purposes. This notching creates a weakness in the section due to the concentrations of stress at the sharp corner. Very little research has been undertaken with regard to the behaviour of, and design procedures for, notched round timber sections. This experimental program studied the performance of various profiles of notches in round timber beams under three-point loading and compared them to nominal capacities for round sections determined using Australian and international design standards. Test results showed an increase in load capacity of round timber beams by 13% and 26% for a tapered notch of 1:2 and 1:4, respectively, compared to a stepped notch with a 1:0 slope. Round sections with all the timber below the notch removed were also tested. Ultimate flexural failure in the notch removed sections occurred on average at loads 29% higher than for the stepped notch, although there was a loss of stiffness in the section of 30%.

Item ID: 62927
Item Type: Article (Research - C1)
ISSN: 2352-7102
Keywords: Timber; Girder; Round; Snipe; Notch
Copyright Information: © 2019 Elsevier Ltd. All rights reserved.
Date Deposited: 28 Apr 2020 01:59
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090506 Structural Engineering @ 50%
09 ENGINEERING > 0905 Civil Engineering > 090503 Construction Materials @ 50%
SEO Codes: 87 CONSTRUCTION > 8703 Construction Materials Performance and Processes > 870305 Timber Materials @ 80%
87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 20%
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