FIELD: construction engineering; erection of monolithic and composite in- situ pre-stressed skeleton-type buildings and structures. SUBSTANCE: pre-stressed reinforced concrete building skeleton has columns, ceiling with variable-depth ducts made along column faces in relatively perpendicular directions, pre-stressed reinforcement placed in ceiling ducts in complying with bending moment curves and locked in position on ceiling ends over perimeter of building skeleton, and grouting concrete. Ceiling is monolithic over perimeter of skeleton cells and has variable depth ducts open on top near column faces and at bottom in mid-span; monolithic parts are formed above pre-stressed reinforcement on top area of ceiling. EFFECT: reduced material and labor consumption due to facilitated concrete-form, reinforcement, and erection works; reduced construction time. 4 cl, 12 dwg
