FRAMEWORK OF BUILDING AND METHOD OF ITS ERECTION Russian patent published in 1999 - IPC

FIELD: construction engineering. SUBSTANCE: this relates to combination prefabricated and monolithic frameworks with flat disk-type flooring. It can be used for erection of single-storied and multistoried buildings for dwelling and public buildings in various areas including seismic. Framework has sectional columns with cutouts at level of flooring and with exposing their longitudinal working reinforcement at these points. Prefabricated flooring slabs provided with outlets of reinforcement at sides are located within cells of framework and are combined together according to outlets of reinforcement by means of rods. Monolithic sections of flooring disk slab have through reinforcement passing over length and width of building. This reinforcement passes after working reinforcement of columns in their cutouts. Prefabricated slabs are provided at ends with flat welded reinforcement frameworks which are located vertically in line with rods of working reinforcement of long sides of slabs above these rods. They are connected with them by means of lateral vertical reinforcement of flat welded frameworks. Flat welded frameworks are made with loop-like protrusions of their lower and upper rods over ends of slabs with width of each section in plan up to 0.20-0.30 of slab width as from its both corners. Slots are made in middle sections of slab ends and in side faces of prefabricated slabs. Faces of prefabricated slabs are bevelled with respect to plane of slabs: over ends of slabs, faces are inclined away from slab, and over sides they are inclined towards slab. Monolithic sections of flooring disk slab between ends of prefabricated slabs are made in the form of load-bearing span-pieces in which in overlapping manner are located loop-like protrusions of reinforcement from ends of oppositely located slabs. Passing through loop-like protrusions is upper working reinforcement of load-bearing span-pieces. Lower working reinforcement of span-pieces is located under loop-like protrusions of reinforcement. Upper and lower parts of working reinforcement of load-bearing span-pieces are combined by vertical lateral reinforcement. Arranged along prefabricated slabs across load-bearing span-pieces is linking through reinforcement. Method for erection of framework of building includes installation of columns, mounting of faleswork for flooring disks, erection of prefabricated slabs in design position, placement of reinforcement of span-pieces and linking reinforcement, and placement of concrete mix for monolithic flooring disk. Prefabricated slabs are installed in design position in two stages after placement of lower working reinforcement of load-bearing span-pieces: initially prefabricated slabs are installed in line with columns with their ends resting on discretely located falsework, then remaining prefabricated slabs are placed with their ends resting through corners on cantilever parts of falsework which are protruding from under earlier installed slabs or they can rest on earlier installed slabs. After that, placed and fixed in required places is needed shuttering of span-pieces and if necessary longitudinal joints are made. Framework of building erected as described above requires less material and labour. EFFECT: higher efficiency. 5 cl, 21 dwg