Shear Resistance of Glulam Beams with Cracks
نویسنده
چکیده
A reduction of the shear resistance was introduced with the crack factor kcr in Eurocode 5. The factor 0.67 corresponds to cracks that have a depth of 1/3 of the beam width, which rarely occurs under normal conditions. The glulam industry in Sweden has not observed any problems or shear failures due to cracks with previously used shear values. Hence the design requirements do not seem reasonable at the same time as they reduce the competitiveness of glulam. It is therefore of interest with more knowledge about cracks in glulam beams, and if there is any reason for different kcr-factors. The aim of this project is to obtain support for the use of a higher value of the crack factor kcr than 0.67 that is recommended in Eurocode 5.
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