RU2687726C1 - Unit for connection of column and floor slabs - Google Patents

Abstract

FIELD: construction.SUBSTANCE: invention relates to construction, more specifically to units for floor slabs and coating on columns of frame buildings. Assembly for connecting column and floor slabs comprises support plate connected to radial stiffness ribs, using vertical rectangular stiffening ribs is rigidly connected to lower support plate, forming a metal frame of column rigidly connected to it, and floor slabs is connected to metal holder by means of welded seams with fittings and assembly of unit.EFFECT: reduced labor intensiveness of assembly and increased rigidity of unit for jointing overlap with column.3 cl, 8 dwg

Description

The invention relates to the construction, more specifically to the nodes of the support of floor slabs and cover the columns of frame buildings.

Known connection node of the columns and slabs, containing the lower column, installed on her slab, which houses the upper column, the lower end of each of the columns is configured to be attached to the connecting element of the underlying column, and the upper end is configured to install it element, while the floor slab is made with the possibility of passage through it of the connecting element of the lower column (RU # 123033, ЕВВ 1/38, 20.12.2012).

The disadvantage of this connection node of the columns and slabs is the increased complexity associated with a significant amount of electric welding and concrete work required for the grouting of the joint, low rigidity of the interface of the ceiling with the column due to the presence of connecting elements.

The closest technical solution to the claimed invention is the junction of the columns and the floor plate containing the underlying column, on which, using a connecting element, a floor plate and an overlying column are installed, with the lower end of each of the columns being attached to the connecting element, and the upper the end is made with the possibility of installation on it of the connecting element, while the floor plate is provided with a through hole made of a free fitting on the connecting the second element, which contains two cylindrical parts, the upper part of which has a diameter greater than the diameter of the lower part, made with the possibility of its entry into the cavity of the underlying column, while the columns contain a rigid cylindrical shell, made with the possibility of uniform and dense filling with a solid filler particles to a level that ensures its tight contact with the end face of the connecting element placed in the cavity of the cylindrical shell, in addition, the upper part of the connecting el The coping is made with the possibility of fastening with the floor slab, for which radial stiffening ribs are rigidly fixed on the side surface of the connecting element, the lower edges of which are rigidly fastened to the base plate, the upper plane of which is made with the possibility of supporting the floor slab on it (RU # 2549342, Е04В 1 / 38, 04/27/2015).

The disadvantage of this connection node of the columns and slabs is the increased complexity of installation and low rigidity of the interface overlap with the column.

The problem to which the invention is directed, is to develop a simple design of the junction, allowing to match the overlap with the columns, as in the construction of the bottom-up, and in the construction of top-down.

The technical result achieved when solving the task, is to reduce the complexity of installation and increase the rigidity of the pairing overlap with the column and the device capabilities of this node connecting the column and floor plate at any point along the column.

The task is solved by the fact that in the junction of the column and the floor plate containing the support plate connected to the radial stiffening ribs, the upper support plate with the help of vertical rectangular stiffeners rigidly connected to the lower support plate, forming a metal frame of the column rigidly connected to it , and the floor slab is connected to the metal ferrule by means of welds with reinforcement and monolithing.

With a flat slab, the lower reinforcement of the slab is welded to the lower support plate, and the upper reinforcement of the slab - to the upper support plate.

With a ribbed slab, the upper reinforcement of the slab and the upper reinforcement of the beams are welded to the upper support plate, the lower reinforcement of the beams is welded to the lower support plate, and the lower reinforcement of the slab is brought to the column and cut off, while the lower reinforcement of the ceiling plate is supported on the lower supporting plate through monolithic concrete.

The invention is illustrated by drawings, where in FIG. 1 shows a general view of the junction of the column and the floor slab;

in fig. 2 shows a section aa;

in fig. 3 - section bb is shown;

in fig. 4 shows a junction of a column and a flat floor slab;

in fig. 5 - the cut is shown in-in;

in fig. 6 shows a junction of a column and a ribbed slab;

in fig. 7 is a section of yy;

in fig. 8 shows a section of the dd.

The connection node of the column and slab contains a column 1, rigidly connected to the metal shell 2, consisting of the upper support plate 3, the lower support plate 4, rigidly interconnected by means of radial stiffeners 5 of rectangular shape. The ribs 5 and the supporting plates 3, 4 are welded to the column 1 and to each other by welds 6 (Fig. 1, 2, 3). The upper 7 and lower 8 reinforcement slabs are fixed on the support plates 3, 4 by overlapping welds 9 (Fig. 4, 5). If the slab has a ribbed shape (see Fig. 6, 7, 8), then the upper reinforcement of the beams 10 and the upper reinforcement 7 of the floor slab are welded to the upper support plate 3, the lower reinforcement of the beams 11 are welded to the lower support plate 4, and the lower reinforcement 8 slabs are cut off at column 1.

The inventive connection node of the column and floor slab mounted as follows.

The column 1 is installed in the design position, then radial stiffening ribs 5, the upper 3 and the lower 4 support plates are welded to the column 1 by successive double-sided seams and welded them together. Next, with a flat slab (Fig. 4, 5), the upper reinforcement 7 of the slab is welded with overlap seams to the upper support plate 3, and the lower reinforcement 8 of the slab - to the lower support plate 4. With ribbed slab (Fig. 6, 7, 8) weld overlapping seams 9 with the upper reinforcement 7 of the floor slab and the upper reinforcement of the beams 10 to the upper support plate 3, the lower reinforcement of the beams 11 are welded to the lower support plate 4, and the lower reinforcement 8 of the floor slab is cut off at the column 1. After that, the floor slab is poured with concrete with monsieur

Compared with the prototype, this connection node of the column and the floor plate has low labor intensity due to the presence of a small number of small-sized parts rigidly connected to the column, and has increased rigidity of the floor interfacing with the column due to the hard connection of the floor plate to the supporting plates and making stiffeners rectangular shape.

The claimed invention allows to expand the scope, as it will allow to use this node in underground construction for supporting underground floors to bored piles, will increase the span of floors, the pitch of the main vertical supporting structures in above-ground buildings and structures, allows using this connection node of the column and floor slab, for flat slabs as well as ribbed slabs.

Claims (3)

1. The node connecting the columns and slabs containing a base plate connected by radial stiffeners with a column, characterized in that it is provided with an upper support plate rigidly connected to the lower support plate using rectangular radial stiffeners, while the upper and lower plates with the rectangular radial stiffeners located between them form a metal case of the column, which is connected to the column, and the floor plate is connected to the metal case by welding joints with reinforcement of the slab, while the lower reinforcement of the floor slab is welded to the lower support plate, and the upper reinforcement of the floor slab - to the upper support plate. 2. The node connecting the columns and floor slabs under item 1, characterized in that the floor plate is made in the form of a flat plate. 3. The node connecting the columns and floor slabs under item 1, characterized in that the floor plate is made in the form of a ribbed plate.

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