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BauBuche's higher strength and stiffness values make it possible to use smaller cross-sections, which leads to considerable material savings. Depending on the application, different properties are decisive for the design. In the case of single-span girders, it is usually the stiffness (modulus of elasticity), in the case of continuous girders it is rather the bending strength or the shear strength, and in the case of columns and trusses, the compressive and tensile strength. The table on the right shows the material savings when using glulam GL28, laminated veneer lumber spruce and BauBuche GL75 based on solid wood C24 (construction timber of normal strength).
Assumptions are:
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