Laminar beam of trapezoid-section strips has identical triangular strips placed asymmetrically, with no common cut point

摘要

The laminar beam (11) is made up of trapezoid-section strips. The identical triangular-section strips are placed asymmetrically so that they have no common cut point. The large parallel side is always in the immediate vicinity of the round timber jacket surface, and from there on out, the center verticals of the strips are laide to form the beam width (B).