FIELD: construction.
SUBSTANCE: truss consists of an upper and a lower belts interconnected by a grid. A distinctive feature of the construction is the presence of an additional horizontal rod, grippers located on the extreme braces of the truss, shorts at the nodes of the lower belt and brackets equipped with springs. The additional rod contains supports welded in pairs - one pair opposite each of the shorts, and light clamps. With the help of compression springs, it is pressed against the grippers and limited by the lightweight clamps by displacement from the plane of the truss.
EFFECT: prevention of the truss collapse in case of local destruction of one of the rods or middle nodes of the lower belt with possible emergency action.
7 dwg
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