BUILDING PANEL Russian patent published in 1995 - IPC

FIELD: civil engineering. SUBSTANCE: building panel has reinforcing skeleton with longitudinal prestressed reinforcement and volumetric spirals covering the reinforcement, and concrete to consolidate, with trapezoidal coil shape of volumetric spiral in panel cross- section. The spiral has equal number of coils on ends and in the middle of the panel. Reinforcing skeleton on panel end sections has E-shaped plane spirals drawn into volumetric spirals in cross direction. Moreover, longitudinal prestressed reenforcement is located in lower corners and near base of trapezoidal coils of volumetric spiral. EFFECT: multivoid panels. 2 cl, 2 dwg