PROTECTIVE COLLAPSIBLE STRUCTURE OF BUILDING GUARD Russian patent published in 2015 - IPC E04B1/92 

FIELD: construction.

SUBSTANCE: this structure comprises reinforced concrete 6000x1800 mm panels. This panel consists of destructible and non-destructible parts. Note here that the latter is composed of load-bearing ribs arranged in contour of destructible part. The latter is composed of at least two coaxial recesses in building wall. One, outer recess is composed by sides of the right quadrangular truncated pyramid with rectangular base. Another one, inner recess is composed by two inclined surfaces connected by ribs to make a slit. Note here that wall thickness from said rib to building guard should make at least δ=20 mm. At impact or explosive loads said wall section can be divided into separate parts. At least three horizontal rods with shielded screen secured thereat are attached to load-bearing ribs in outline of purposefully destructible structure. Said screen is locked by springs at said rods arranged between thrusts rigidly jointed with ribs and shielded screen. To collect of fragments of destructed structure a trough is secured to rods located at lower part.

EFFECT: higher reliability of blast-proof devices.

2 dwg