FIELD: construction.
SUBSTANCE: in a protective damageable structure of fencing containing reinforced-concrete slabs with dimensions of 6000×1800 mm, a slab consists of damageable and non-damageable parts. A non-damageable part is made in the form of load-carrying ribs arranged along the contour of the damageable part, and the damageable part is made in the form of at least two coaxially located cavities in the building wall, one of which is external and formed with planes of a regular quadrangular flattened pyramid with a rectangular base, and the other one is internal and represents two inclined surfaces connected by means of a rib with formation of a slot; with that, wall thickness from the rib to the external surface of the building fencing shall be at least δ=20 mm. At action of blast explosion load, this section of the wall can be divided into separate parts, and opposite the damageable part, on the outer side of the building fencing there located is a protective screen from material of increased strength, for example antiarmour material that is fixed on at least three horizontally located pins that are perpendicular to the building fencing, on the ends of which there fixed are disks and which pass through holes in the protective screen. Disks located on the right side of the pins are buried in the building fencing, and elastic members supporting the protective screen to the building fencing are borne against disks on the left side of the pins.
EFFECT: improving reliable actuation of damageable explosion-proof devices at emergency explosion at the site.
4 dwg
