SAFETY COLLAPSIBLE GUARD OF BUILDINGS Russian patent published in 2014 - IPC E04B1/92 

FIELD: blasting works.

SUBSTANCE: proposed guard structure comprises reinforced concrete 6000×1800 mm panels. Said panel consists of collapsible and non-destructive parts. Note here that the latter is composed by load-bearing ribs arranged along outline of collapsible part. The latter is composed by at least two recesses made coaxially at building wall. Outer recess is composed by faces of the right quadrangular truncated pyramid with rectangular base. Inner recess is composed by two inclined planes connected by said rib to make the slot. Note here that wall thickness from building guard outer surface should make at least δ=20 mm. Note also that at impact blast stress said wall section will be split into separate parts while are of collapsible part of openings are calculated by the claimed formula. Said recesses are filled with heat-and-sound-isolation material and closed by decorative easily collapsible panel.

EFFECT: higher reliability in emergency.

1 dwg