Why is the material GL28h assigned a modulus of elasticity of 13500 N/mm² (E0,mean) in the Dlubal material library, while I find a value of 12600 N/mm² in the standard?
I would be very pleased to receive feedback.
Best regards,
Nick Böttcher
E-module in timber construction deviates according to construction table cutter/values from standard
Hi Nick,
you have selected the wrong material (see image).
Maybe it helps to activate the “full material description”:
I hope this helps.
To be honest, I don't understand how anything has changed here now? In your screenshot, a value of 13500 is shown just the same?? Shouldn't this be 12600 according to the DIN standard for E0mean??? The only explanation I could initially think of is that a stiffness reduction is applied here for the internal force calculation in the form of a structural modification, but then this reduction would also be required for verifications in the design details, so the calculation in the ultimate limit state (ULS) would also be based on 12600. However, this is not the case, so this theory cannot be correct—or can it? Since the internal forces are already changed? But that would not be appropriate for statically determinate systems; here, the internal forces are the same regardless of stiffness, so a smaller modulus of elasticity must be used in the design details.
I would appreciate clarification of my thinking error or, if applicable, which type of GL28h I must choose to use the modulus of elasticity E0mean=12600 N/mm² specified in the standard for a GL28h.
Best regards,
Nick Böttcher
Hello Nick, please take a look at the description of the material:
You have selected beech glued laminated timber according to approval:
Please select the material according to EN 14080, then you will get the desired 12600 N/mm² as shown in my first response:
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Thank you very much for the help!
That was exactly the material choice I wanted.
Best regards,
Nick Böttcher
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