Work

Strength grading of structural timber

Year: 2018

Type: conference-paper

Abstract: All timber used for construction in the EU has to be strength graded and CE marked. To grade a piece of timber we can use visual or machine grading. The procedure to obtain and approve the settings for a new machine or visual standard is described. The approval is restricted to wood species, size of specimen and source of origin. A comparison of visual and machine grading is based on the German DIN 4074-1 visual grading standard and the Slovenian STIG grading machine for Slovenian spruce. The results show that machine grading is a better option, since we can grade to higher strength grades and the number of pieces in a grade is higher. Also, machine grading is faster, easier to implement and more reliable. Machine grading operates in multiple grading combinations, whereas visual grading usually has only one grade combination. To produce highest grade glulam, machine grading is needed.

Source: Common Foundations - uniSTem: Congress of Young Researchers in the Field of Civil Engineering and Related Sciences

DOI: 10.31534/co/zt.2018.09

Authors: Barbara Fortuna, Mitja Plos, Tamara Šuligoj, Goran Turk

Language: English

Topic: Wood Treatment and Properties

Subfield: Building and Construction

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W2892053643

FWCI: 1.875

Cites:

Cited by: 7

Related to: 10