RU30368U1 - Pre-stressed bezelless building frame - Google Patents

Description

Pre-stressed bezelless building frame.

The invention relates to building structures, namely to frame buildings and structures with tension reinforcement in construction conditions.

Known frame system IMS for the construction of residential buildings and public buildings, containing columns, ceilings, prestressed fittings,

laid between overlapping panels in mutually perpendicular directions, passed through openings in columns and monolithic with concrete / 1 /.

The closest construction is the prestressed reinforced concrete frame of the building, including columns, a prefabricated monolithic floor, containing floor slabs interconnected by monolithic sections, and located in the floor in accordance with the diagram of bending moments in mutually perpendicular directions along the axes of the frame cells of prestressed reinforcement. To place prestressed reinforcement in monolithic sections of the overlap, open channels are made. / 2 /

The disadvantages of the known designs are the complexity and the complexity of the construction of the frame due to the busy operation of the placement and tension of the reinforcement in the body of the ceiling, as well as the need to open channels in monolithic sections of the ceiling and filling the joints after

.and(

tensioning reinforcement. In addition, in this design, prestressed reinforcement can be placed only around the perimeter of the cells, which does not reduce the material consumption of the floor, and due to the complexity of concreting hidden channels in the middle of the spans, the complexity increases.

The technical task is to reduce the time of construction of buildings due to the possibility of increasing spans while maintaining the thickness of the floor and reducing weight and simplifying the work when tensioning the reinforcement and concreting.

The technical problem is solved in such a way that in the prestressed -based frame of the building, including columns, a prefabricated-monolithic overlap containing floor slabs and monolithic sections between them, and located in the overlap along the axes of the frame's cells in accordance with the diagram of bending moments of prestressed reinforcement, fixed at the ends of the floor around the perimeter of the building frame, according to the invention, in the cells of the frame additionally between the floor plates laid prestressed arm round and fixed to the ends overlap, with prestressed reinforcement is placed in the body overlap in kanaloobrazovatelyah without adhesion to concrete.

The proposed design differs from the known one in that, in the cells of the frame, additionally prestressed reinforcement is laid between the floor slabs and fixed at the ends of the floor, while pre-stressed

the reinforcement is placed in the body of the ceiling in the channel formers without adhesion to concrete.

This embodiment of the structural design of a precast-monolithic floor frame using prestressed reinforcement in duct formers without adhesion to concrete makes it possible to place additional prestressed reinforcement between the floor slabs, which can lead to a decrease in the material consumption of the structure, simplification of the construction process and shortening the construction time.

Figure 1 presents the prestressed bezelless frame of the building in the span; figure 2 - aa figure 1; Fig.3B BB figure 1; 4-B-B of figure 1; Fig.Z-G-D Fig.1; fyG. And phiZ.

The prestressed frame of the building includes columns 1, a prefabricated monolithic overlap, consisting of floor slabs 2 and monolithic sections 3 located between them. Prestressed reinforcement 4 is placed in duct formers-tubes 5 that are laid in monolithic overlap sections 3 along the axes of the frame cells and additionally between floor slabs. Reinforcement 4 is fixed at the ends of the floor around the perimeter of the building frame. (not shown in the drawing).

Pre-stressed bezelless building frame is erected as follows.

Pa foundation set the frame and formwork for the construction of columns 1 of the building frame and carry out their concreting. Then install the mounting supports in the cell frame, lay on them slabs 2 floors and fail

formwork for concreting monolithic sections 3 overlapping cells. Between the overlapping plates 2 laid in the cell and along the cell perimeter along its axes, channel formers are laid - tubes 5 with reinforcement 4, placing them in accordance with the diagram of the bending moments of the overlap. After this, concreting of monolithic sections of the floor is made - along the perimeter of the cell and between the laid floor slabs. After the concrete has gained formwork strength, the formwork is removed and the floor is similarly mounted in the next cell with the installation of through reinforcement. After the entire floor is installed, the reinforcement is pulled and fixed at the ends of the floor around the perimeter of the building frame.

When erecting the proposed design, the cost of the building is reduced due to the simplification of the work and reduction of material consumption.

Sources of information:

1.ST. B. Koprivitsa “The use of the IMS frame system for the construction of residential and public buildings, housing construction, M, 1984, .№1, p.30-32.

2. RF patent No. 2166032, KL.E04V1 / 18, BI№12. 2001 / prototype /.

Claims (1)

A prestressed bezel-free frame of the building, including columns, a prefabricated-monolithic overlap containing floor slabs and monolithic sections between them, and located in the overlap along the axes of the frame cells in accordance with the diagram of bending moments, prestressed reinforcement fixed at the ends of the ceiling along the perimeter of the building frame, characterized in that, in the cells of the frame, additionally prestressed reinforcement is laid between the floor slabs and fixed at the ends of the floor, while prestressed reinforcement is placed in the body overlap in kanaloobrazovatelyah without adhesion to concrete.