| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to metal frames. Frame design consists of several adjacent frames made of hot-rolled or cold-formed steel, connected to each other and in the plane of one frame by welding, screwing or riveting with plate elements which can be solid or interrupted along the rod length and have perforation.EFFECT: technical result consists in improvement of strength and operational characteristics of the frame.1 cl, 1 dwg |
