SPATIAL ROOF Russian patent published in 1995 - IPC

FIELD: construction. SUBSTANCE: spatial roof includes load-bearing slab of crossing members resting over slab edges on supporting system, diagonal tension bars, struts and brace having stay bolt. Upper ends of struts rest in point of crossing of crossing members, and lower ends converge in point lying on central axis of roof and connected by means of tension bars with brace. Screw lead value in brace is function of least values of positive and negative values of bending moments, lateral forces, axial forces and sagging of crossing girders and supporting members. EFFECT: higher efficiency. 6 cl, 14 dwg