RU2000133028A - CONSTRUCTIVE SYSTEM OF A MULTI-STOREY BUILDING AND METHOD OF ITS BUILDING (OPTIONS) - Google Patents

Claims (9)

1. The structural system of a multi-storey building, including a precast-monolithic reinforced concrete frame, formed by prefabricated multi-storey columns of rectangular cross-section, prefabricated rectangular over-pillar slabs with through-hole rectangular holes in their middle for column passing and butt joining with them, prefabricated square inset plates, supported edges on overhead columns s, characterized in that the columns in height at the levels of the floor slabs are made with concrete breaks and their working reinforcement is exposed, at least by the thickness of the floor, the inner faces of the through holes of the column slabs are made inclined to the columns, in each concrete gap of the column in its composition of of monolithic concrete, a pyramidal wedge was made, directed upward by a narrow part and tightly adjoining lateral faces to the inclined faces of the through holes of the column columns, the column columns are equipped with upper working fittings sharpened in the form of groups (beams) directly along the faces of the through holes, each pair of groups of rods located on both sides of the hole and oriented in mutually perpendicular directions so that along the contour of each through hole they form a closed border in the form of a reinforced concrete shell hidden in a slab, groups rods, thus bordering the through hole of the column columns, are extended beyond their edges and combined with the releases of the reinforcing bars of the liner plates so that in the cross sections of the columns the entire width and the length of the building they formed a continuous through reinforcement of the crossbars hidden in the plane of the plates, placed in accordance with the distribution of efforts along their spans, the columns of the extreme row are rigidly coupled directly to the inset plates by means of a monolithic reinforced concrete crossbar, passed through the concrete breaks in the extreme columns for the entire length of the building and the cantilevered unit with the outside for the installation of balconies and bay windows, while the external walls are floor-supported, and the columns of the outer row are sized still in the thickness of the outer walls.  2. The structural system of the building according to claim 1, characterized in that each pyramidal wedge as part of the column at its junction with the column plate is made of monolithic concrete with a strength not lower than the strength of the concrete of the columns and equipped with horizontal transverse grids formed by reinforcing shorts with the length of each shorty exceeding the width of the cross section of the column in the corresponding direction. 3. The structural system of the building in paragraphs. 1 and 2, characterized in that the columns of the frame are made of square section, and the required cross-sectional area of each group of rods of the upper working reinforcement of the column columns at each face of the hole should be greater than the value determined by the formula

where V is the force of pushing the column plate under the column when the calculated vertical load acts on the overlap, α is the angle of inclination of the inner face of the through hole, R _S is the calculated tensile strength of the reinforcing bars, β = 0.45 is the empirical coefficient established by the authors' tests and taking into account concrete junction.  4. The structural system of the building according to paragraphs. 1-3, characterized in that in the column columns along the inner inclined faces of the through holes there is vertical reinforcement in the form of flat welded frames, and the assembled column columns and insert plates at the lower and upper surfaces are equipped with reinforcement in the form of reinforcing meshes according to the calculation.  5. The structural system of the building in paragraphs. 1-4, characterized in that the liner plates directly adjacent to the monolithic crossbars are made rectangular in plan, longitudinal monolithic crossbars in the sections of the extreme rows of columns are made with a height exceeding the thickness of the adjacent plates, and the parts of the monolithic crossbars protruding downward are placed in the outer walls.  6. The structural system of the building according to paragraphs. 1-5, characterized in that the interplate seams are made of monolithic reinforced concrete with the possibility of forming wedge-shaped in terms of flat joints of precast plates.  7. The structural system of the building according to paragraphs. 1-6, characterized in that the external floor-by-floor supported walls are made in the form of masonry from piece stones and are placed on the mortar layer directly on each floor with a masonry inlet relative to the edge of the floor by an amount sufficient to accommodate an additional floor in the wall along the contour of the floor disk a layer of effective insulation and facing layer of masonry from the same masonry material as the masonry of the wall, but with an inflow value of not more than 0.45 b, where b is the wall thickness and the upstream overlap disk is also azmeschen directly on the outer wall, wherein between the top of the masonry wall and disposed covering the bottom layer of resilient material, such as polystyrene.  8. The method of construction of a multi-story building of a structural system according to paragraphs. 1-7, including installation of columns along the alignment axes, installation of technological equipment on each floor on the underlying floor or basement floor, installation of floor slabs for the next floor, monolithic them with columns and between each other, holding the concrete to set design strength, disassembling and rearrangement of the equipment on the finished floor and the subsequent installation of floor-mounted or hinged external walls, as well as partitions, characterized in that the installation and technological equipment in the form of towers is first placed support devices from telescopic racks joined together, covering the middle columns of the frame under the columnar square plates, as well as under the ends of rectangular insert plates adjacent to the extreme rows of columns, then prefabricated plates are laid in two stages in the design position, first on tower supports devices stack over-column plates and rectangular insert plates, and then all square insert plates are hung on the plates laid in the design position along their edges, arrange the formwork of inter-plate joints and odolnyh crossbars and laying monolithic concrete interplate joints, columns, slabs and joints with longitudinal crossbars are performed simultaneously across the overlap.  9. The method of construction of a building on the basis of a precast-monolithic frame, including the building of the structural system according to paragraphs. 1-7, including installation on the center axes of the columns, installation on each floor on the basement floor or the underlying overlap of the installation and technological equipment, the laying of prefabricated floor slabs on it, the monolithic of the prefabricated slabs between themselves and with the columns, exposure of the cast concrete to its design strength , dismantling and rearrangement of the finished installation of technological equipment and the device floor-mounted external walls and partitions, characterized in that on each floor installation of technological equipment in de supporting tower devices formed by a group of telescopic racks united among themselves, perform simultaneously with the device of the external floor-supported wall, and the flooring device, including the installation of precast plates, laying and curing monolithic concrete, is performed with the prefabricated and monolithic structural elements of the ceiling resting on the tower supporting devices and outer wall.