| 摘要 |
<p>A wooden support of the type having integral, transverse top and bottom chords and at least one assembly of successive struts extending therebetween to form a double-T-support. The assembly of successive struts is composed of individual struts that extend at an angle relative to one another, the end faces of two struts which respectively meet at a junction being securely connected to an inside surface of the top chord or, respectively, the bottom chord. The strut and the chord in the region of its strut connection surface engage into each other with wedgeshaped teeth of like pitch and like profile and are glued together. The invention results in an improved wooden support wherein the chords are subjected to a comparatively lower weakening for connection of the struts than has so far been considered necessary for supporting a given load.</p> |
