The reason for this enormous effort was the option to manufacture the precamber of a glulam beam relatively easily and thus cost efficiently. Generally, a precambered cross‑laminated timber plate means higher expenses.
The figure shows a precambered structure of a glulam beam and a cross-laminated timber plate. The glulam beam has the function of a binding girder connected rigidly to the plate.
The second part of my post deals with restoring the forces resulting from the plate curvature that are calculated using the line-imposed deformation, and the third part presents the ultimate calculation of fully loaded "floor beams" in RFEM.