| 摘要 |
FIELD: construction. ^ SUBSTANCE: efficient reconstruction of hollow core slab performance (strength, stiffness, crack resistance and fire resistance), improved performance reconstruction quality, metal saving, reduced material cost and power consumption during repair work, reduced risk of collapse of damaged floor panels during their reconstruction. The invention concerns construction industry, and particularly long bearing structures such as transmission line support post. The long bearing transmission line post is made of long roll-formed metal sheets or segmentally interconnected roll-formed metal sheets forming a cross-section open from one end throughout the post length. The post or each segment of the post has a central part in the form of a rectangle of equal or variable width along the height, from this central part side edges are bent at an obtuse angle to the central part plane, the ends of these edges of a width smaller than that of the side edges are bent in the opposite from each other sides parallel to the central part face to form stiffening ribs in the open trapezoidal cross-section. An versions of long load-bearing transmission line support post is also described. ^ EFFECT: increased stability of the bearing support post in normal and emergency conditions by means of reinforcing its mechanical strength with unchanged weight characteristics. ^ 3 cl, 2 dwg |
