PRESTRESSED REINFORCED-CONCRETE BUILDING FRAME Russian patent published in 2002 - IPC

FIELD: construction of framed buildings. SUBSTANCE: the prestressed concrete-reinforced building frame has columns with ducts made in them at the level of the floor in two mutually perpendicular directions, slabs, and a prestressed reinforcement passed between the rows of slabs placed in the span of the slab frame, in the column ducts and anchored on the extreme columns and monolith-stabilized by concrete. The slabs are laid with formation of bearing members around the building edges for erection of the external walls. To this end, a longitudinal groove for placement of the prestressed reinforcement around the building edges is made in the slab adjoining the frame external column, the groove width equals 0.5 to 0.8 of the column width, and the depth equals h-3d, where h - slab thickness, d - reinforcement diameter. EFFECT: simplified erection of the building, reduced specific quantity of metal per structure due to elimination of the operation of assembling of separate edge members for the support of the external walls, enhanced stability of the frame members around the building edges at a tension of the reinforcement. 3 dwg