| 摘要 |
FIELD: construction, particularly elongated building structures made of wood and used to compose enclosing and load-bearing walls and similar structures. ^ SUBSTANCE: timber balk comprises 2 parallel longitudinal plates spaced one from another and rigidly connected with each other by the third longitudinal plate along the full lengths of the first and the second plates. The third plate lies in plane transversal to the first and the second plate planes. The first and the second plates are connected with each other by transversal strips lying in planes transversal to that of the first and the second plates. ^ EFFECT: prevention of crack formation in balk surface, increased bending and torsion resistance, increased manufacturability and drying simplicity and reduced material consumption. ^ 2 cl, 2 dwg |
