PROTECTIVE BARRIER Russian patent published in 1997 - IPC

FIELD: construction engineering. SUBSTANCE: this barrier is intended for protection against break-through by small arms or explosion. Barrier is made up of concrete, spacious reinforcement frame containing longitudinal and lateral spiral reinforcement installed by inserting lateral spiral reinforcement into turns of longitudinal reinforcement with ensuring interperpendicularity of their axes. Frame is made in the form of three-dimensional reinforcement matrix, and located in any arbitrary section of it are lines of spiral reinforcement normally oriented to tensile stress. Protective barrier can be made as single-layer or multilayer. EFFECT: high efficiency. 1 cl, 2 dwg