RU125592U1 - REINFORCED-MONOLITHIC REINFORCED CONCRETE FRAME OF BUILDING, STRUCTURES - Google Patents

Abstract

1. The precast-monolithic reinforced concrete frame of the building, which is a building structure, consisting of columns having concrete gaps in the plane of overlap for a monolithic nodal connection, in which precast-monolithic bearing and communication beams are joined with columns and an overlap consisting of floor slabs, supported directly to the bearing crossbars, and the connecting crossbars, characterized in that the ligation of the bent reinforcing ropes of the crossbars in monolithic crossbar-column nodes is applied, and the crossbar-slab nodes are made enes with concrete dowels which are limited stoppers with holes through which passes the transit fittings common to counter plates and rendered monolithic dowels and holes in probok.2. The precast-monolithic reinforced concrete frame of the building according to claim 1, characterized in that for monitoring the filling of the keys with concrete, holes are provided in the plates located directly above the cork. 3. The precast-monolithic reinforced concrete frame of the building according to claim 1, characterized in that the lower protective layer of the crossbar concrete is reduced to an acceptable (25-30 mm), and in the manufacture of crossbars, high-quality concrete and reinforcement of a class not lower than A500.4 are used. The precast-monolithic reinforced concrete frame of the building according to claim 1, characterized in that prefabricated consoles are used to support the external masonry.

Description

The utility model relates to the field of construction and can be used in the construction of residential and public buildings of any number of storeys.

Several reinforced concrete frameworks are known: the BELGPI framework according to the invention patent No. 2202026 of the Russian Federation, Cl. E04B 1/18, 2003; frame of a multi-storey building according to the patent for invention No. 2226593 of the Russian Federation, Cl. E04B 1/18, 2004; precast-monolithic reinforced concrete frame of the Kazan-1000 multi-story building (RF patent No. 2184816, 06/10/2002, Cl. E04B 1/20); the prefabricated reinforced concrete frame of the building according to the utility model patent No. 73680 E04B 1/18 (2006.01), the disadvantages of which are, for example, insufficient rigidity of the nodes, reinforcement of the load-bearing crossbar without prestressing, limited span of the crossbar, and a number of other disadvantages.

The frame of the SCOP PPB system building was adopted as a prototype of the utility model (see "Reference manual to SNiP 2.03.01-84. Design of reinforced concrete prefabricated-monolithic structures", Fig. 40) with a multi-hollow slab-crossbar interface unit (see "Reference manual to SNiP 2.03.01-84. Design of reinforced concrete prefabricated-monolithic structures ", Fig. 39). The disadvantages of this frame are, for example, the design of the crossbars, which are made with samples at the ends for a monolithic connection of the crossbar with the column, and these samples are made with a “bottom” 55-65 mm thick, due to which the protective layer of the bottom reinforcement is unreasonably overestimated, which leads to increased consumption of reinforcement and insufficient rigidity of the joints of the crossbar-column and multi-hollow plate-crossbar.

The objective of the proposed utility model is to increase the rigidity of the carcass nodes, the bearing capacity of the floor, the increase in the span of the bearing beam and the increase in labor productivity and quality of work, including at low temperatures.

To achieve the specified technical result, the following is proposed: the first is to apply the dressing of the bent outlets of the reinforcing ropes in monolithic nodes, and the crossbar-floor slab assembly to be performed with monolithic dowels, which in the void of the slab are limited by plugs with a hole through which reinforcement is common, which is common for oncoming plates moreover, to control the filling of the keys with concrete, holes are provided in the slabs, the second - in large-span crossbars, to lower the lower protective layer of concrete to an acceptable (25-30 mm), and if necessary In the manufacture of crossbars, to use high-quality concrete and reinforcement of a class not lower than A500, which will significantly increase the span and bearing capacity of the crossbar, the third is to use prefabricated consoles to support the external masonry instead of monolithic, which will increase labor productivity, and will significantly reduce monolithic work, including at low temperatures.

A utility model is illustrated in the drawings.

Figure 1 shows a plan of overlap;

Figure 2 presents the cross section of the node crossbar-slab;

Figure 3 presents the cross section of the node of the crossbar-column with a reduced protective layer;

Figure 4 shows the design of the crossbar with a reduced protective layer;

Figure 5 shows the design of the crossbar;

Figure 6 presents the cross section of the node crossbar-slab.

Figure 7 shows the construction of a prefabricated console;

The precast-monolithic reinforced concrete frame of the building, structure is a building structure with increased rigidity of the frame units and increased bearing capacity of the floor, in which the span of the load-bearing beam and the increase in labor productivity and quality of work, including at low temperatures, are possible. The frame of the building, structure consists of columns 1 (Figs. 1, 3 and 6) and a floor, which is formed by slabs 2 (Figs. 1 and 2), bearing crossbars 3 (Figs. 1, 3 and 6) and connecting crossbars 4 ( figure 1). In the frame, bandaging of bent outlets 5 (Fig. 3 and 6) of reinforcing ropes in monolithic crossbar-column assemblies is used, and the crossbar-slab assembly is made with concrete dowels 6 (Fig. 2), limited by plugs with holes 7 (Fig. 2) through which the reinforcement 8 (Fig. 2) passes uniformly for oncoming plates, monolithic in the dowels 6 (Fig. 2) and the holes of the plugs 7 (Fig. 2), and holes 9 are provided to control the filling of the dowels with concrete (Fig. 2) ) located above the traffic jams. The monolithic part of the crossbar 10 (Fig.3 and 6) is filled with concrete. The lower protective layer of concrete was also reduced to an acceptable (25-30 mm) (Fig. 3) and prefabricated consoles (Fig. 7) were used to support the external masonry, instead of monolithic ones.

Claims (4)

1. The precast-monolithic reinforced concrete frame of the building, which is a building structure, consisting of columns having concrete gaps in the plane of overlap for a monolithic nodal connection, in which precast-monolithic bearing and communication beams are joined with columns and an overlap consisting of floor slabs, supported directly to the bearing crossbars, and the connecting crossbars, characterized in that the ligation of the bent reinforcing ropes of the crossbars in monolithic crossbar-column nodes is applied, and the crossbar-slab nodes are made enes with concrete dowels which are limited stoppers with holes through which passes the transit fittings common to counter plates and rendered monolithic holes in the dowels and plugs. 2. The precast-monolithic reinforced concrete frame of the building according to claim 1, characterized in that for monitoring the filling of the dowels with concrete, holes are provided in the plates located directly above the cork. 3. The precast-monolithic reinforced concrete frame of the building according to claim 1, characterized in that the lower protective layer of the crossbar concrete is reduced to an acceptable (25-30 mm), and in the manufacture of crossbars, high-quality concrete and reinforcement of a class not lower than A500 are used. 4. The precast-monolithic reinforced concrete frame of the building according to claim 1, characterized in that prefabricated consoles are used to support the external masonry.

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