RU2023825C1 - Beam free construction for multi-story building - Google Patents

Abstract

FIELD: construction. SUBSTANCE: plates of ceilings are provided with longitudinal and lateral ribs which form meshes for passing columns over the whole their area. Sides of the ribs and columns are provided with pin grooves at the level of the columns. The columns can be received in each mesh of the ceiling plates and coupled with them using concrete. Ribs of adjacent ceiling plates are interconnected by welding or bolting. EFFECT: enhanced quality of construction. 4 dwg

Description

 The invention relates to the field of construction, namely to multi-storey buildings with beam-free ceilings.

 Known multi-storey building with bezel-less floor, containing prefabricated columns, overhead columns with a hole for the passage of columns and span plates supported on overhead columns.

 Closest to the invention, the technical solution is a bezel-free supporting structure of a multi-storey building, including prefabricated floor slabs, some of which are made with a hole framed by longitudinal and transverse ribs having keyways on the side faces and forming a cell for passing prefabricated columns, which are made with keyways at the level of the ribs of the floor slabs and connected to the last concrete monolithic.

 A common drawback of these solutions is a rigid grid of columns, the presence of capitals, the heterogeneity of floor slabs, the limited span of the latter.

 The purpose of the invention is the unification of floor slabs and the improvement of architectural and planning decisions of the building due to the possibility of free placement of columns in the building plan.

 This goal is achieved by the fact that all plates are made of the same type, and the ribs are arranged to form cells for passing columns over the entire area of the floor slabs, while the latter are bonded to each other by bolted or welded joints of their ribs with subsequent monolithic seams between them.

 Figure 1 shows a fragment of a beamless structure of a multi-storey building; figure 2 - slab; figure 3 - node connection columns with a slab; figure 4 - node connection ribs adjacent slabs.

 The supporting frameless structure of a multi-storey building consists of prefabricated slabs 1 of floor slabs and prefabricated columns 2. Slabs of slabs are made with transverse and longitudinal ribs 3, which form the same cells 4, in one of which columns are installed 2. In slabs 1, liners forming an opening are installed in plates 1 in cells 4 for the installation of columns 2. The lateral edges of the ribs 3, as well as the columns 2, are made with keyways 5 and have a technological gap 6 for filling the joint with concrete 7. For installing the plate 1 in the design position use of the mounting device in the form of conductors or metal parts 8, welded to the mortgage details of the column 2 and the edges of plates 1, 3 overlap. The connection of the plates 1 with each other is carried out using bolts 9, passed through the holes of the ribs 3 of the plate 1, or metal connecting elements 10, welded to the embedded parts of the ribs 3. To absorb compressive and shear forces in the upper zone of the joint of the plates 1 of the overlap in the seam 11 with the key grooves 5 lay concrete 7. The number of connecting bolts 9, their cross-section is selected according to calculation.

 The dimensions of the plates 1 take any depending on the magnitude of the load and span. Columns 2 can be installed not in each plate 1, but through one or two plates.

 The junction of the column 2 with the plate 1 provides the perception of the entire vertical load and some horizontal. Large horizontal loads (from seismic) are perceived by additional elements - connections (diaphragms) installed between columns 2 or along the outer contour. From the bottom, slabs 1 are closed with a suspended (suspended) ceiling, and holes for skipping engineering communications can be arranged in the ribs 3 of slabs 1.

 It is possible to use floor slabs 1 in an inverted position, i.e. with the ribs up, this reduces their bending stiffness and, accordingly, the pitch of the columns 2. In this case, it is necessary to install additional plates for flooring. With this solution, there is no need for a false ceiling.

 The invention allows to unify floor slabs and provide a "free" step of columns in the building plan, due to which the universality of structures that can be used for buildings for various purposes (residential, public, etc.) is achieved. Moreover, the location of the column in any cell of the floor slab does not affect its size and configuration. The step size of the columns can be increased by increasing the size of the edges of the floor slabs and, accordingly, their strength.

Claims (1)

 BEAM-FREE CONSTRUCTION OF A MULTI-STOREY BUILDING, including prefabricated floor slabs, some of which are made with a hole framed by longitudinal and transverse ribs having keyways on their side faces and forming cells for passing prefabricated columns, which are made with keyways in the level of the edges of the floor slabs and connected with the last concrete monolithic, characterized in that all the plates are made of the same type, and the ribs are arranged with the formation of cells for the passage of columns over the entire area of the floor slabs, when The latter are bonded to each other by means of bolted or welded joints of their ribs with subsequent monolithic seams between them.

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