RU136057U1 - MULTI-STOREY BUILDING WITH A FRAME-LINKED FRAME - Google Patents

Abstract

1. A multi-storey building with a frame-coupled frame made of precast-monolithic reinforced concrete, including precast reinforced concrete columns running on several floors, reinforced concrete floor disks made in the form of monolithic reinforced concrete slabs; the building is equipped with stiffness diaphragms made on the floor with loop outlets for anchoring at the levels of monolithic reinforced concrete floors, foundations and with adjacent stiffness diaphragms in height of the building, characterized in that the stiffness diaphragms along the upper and lower faces have loop outlets of the same length, and loop outlets on the upper face of the diaphragm are offset relative to the loop outlets on the lower face of the diaphragm, the upper face of the diaphragm has at least two supporting protrusions. 2. A multi-storey building with a frame-coupled frame according to claim 1, characterized in that the loop outlets on the lower and upper faces of the diaphragm are formed through the use of bent reinforcing grids. 3. A multi-storey building with a frame-coupled frame according to claim 1, characterized in that a reinforcing bar is missing between the looped outlets of two diaphragms adjacent to the height of the building.

Description

The utility model relates to the field of construction and can be used in the construction of multi-storey buildings with a frame-coupled frame made of precast-monolithic reinforced concrete.

The construction of a multi-story building of the frame structural system is known, its elements are prefabricated columns with embedded parts, vertical diaphragms with embedded parts and shelves for supporting floor slabs, floor slabs. Elements of prefabricated columns in order to reduce the complexity of the installation is performed by the size of 3-5 floors. Columns and vertical diaphragms are connected by welding embedded parts using butt rods and further monolithic. Slabs rest on the shelves of the diaphragm panels. (Reinforced concrete and stone structures: Textbook. For building. Special. Higher education institutions / V. M. Bondarenko, R. O. Bakirov, and others. Ed. By V. M. Bondarenko. - 4th ed., Supplement. - M .: High school, 2007 .-- 997 s, p. 500-501).

A disadvantage of the known design is the increased complexity and complexity of manufacturing prefabricated columns with embedded parts compared with columns without embedded;

- in the manufacture of prefabricated diaphragms with embedded parts, the scheme for their reinforcement is complicated, the range of reinforcing and embedded products increases, steel consumption increases significantly (up to 36%);

- an increase in the range of prefabricated columns and diaphragms, difficulties in the unification of structures, an increase in labor costs and time for their design;

- welded joints of embedded parts have a great flexibility, which increases the deformability of the building and reduces its comfort, they are susceptible to corrosion and high temperatures in case of fire, do not work well under dynamic influences;

- when interfacing the embedded parts of the diaphragms and columns, additional welding work is required, monolithic work on the notches of the diaphragms for embedded parts with fine-grained concrete;

- in case of discrepancy between the actual and design location of embedded parts of columns and diaphragms, the installation of these structures is significantly complicated or becomes impossible.

Known multi-storey building frame-wall structural system of precast-monolithic reinforced concrete, described in the patent for the invention of the Russian Federation No. 2441965, published 02/10/2012. The building includes prefabricated reinforced concrete columns made over several floors, and monolithic reinforced concrete floor disks. The columns are joined along the height of the building according to the type of plug connection of the fittings in the holes of the columns on the adhesive solution. The end planes of the columns within the core of the section are curved polygonal in the form of a bowl along the upper plane of the cutoff of the columns and in the form of a truncated pyramid or ball along the bottom. Orthogonally located linear rigid inserts are installed in the nodes of the grid of columns at the levels of monolithic floors. The inserts are supported on horizontal sections of the columns with anchoring the outlets in the plates outside the cross-section of the columns. The building is equipped with stiffness diaphragms made of prefabricated wall panels one floor high with loop outlets of various lengths. Loop outlets are designed for anchoring panels in the levels of floors, foundations and with adjacent panels along the height of the building.

The disadvantages of such a structural scheme of a multi-story building are:

- the installation of columns of grid columns in the levels of monolithic floors of orthogonally located linear rigid inserts as a hidden capital does not exclude the need to install the transverse reinforcement of the floor slab during its work for bursting and lateral force, but complicates the reinforcement of such nodes, increases the complexity and material consumption when installing them ;

- the proposed node pairing prefabricated diaphragms of rigidity along the height of the building by welding loop outlets does not provide rigid mutual fastening of the diaphragms between themselves, necessary for reliable spatial operation of the building;

- welded joints of loops have a great flexibility, which increases the deformability of the building and reduces its comfort, they are susceptible to corrosion and high temperatures in case of fire, do not work well under dynamic influences;

- when arranging the mating nodes of the diaphragms, additional welding is required for the mutual fastening of the loops, the work of monopolizing the voids of the diaphragms with high-strength thixotropic concrete:

- in the manufacture of prefabricated diaphragms of the proposed design, complication of the formwork system is required for the device of voids at the lower end of the diaphragm for access to the loop outlets;

- when installing prefabricated diaphragms on the surface of a monolithic overlap, a mounting layer of high-strength fine-grained concrete is required, which increases the complexity and material consumption, the time of work;

- installation of prefabricated diaphragms on a monolithic overlap is possible only after curing with concrete floor, which reduces the variability of the work process;

- the use of stiffening walls of diaphragms in the absence of diaphragm columns does not provide operational reliability of the monolithic overlap when punching along the contour of the diaphragm:

- even with a slight discrepancy between the actual and design location of the loops of adjacent diaphragms, their installation will be significantly difficult;

- during installation, very high accuracy is required for combining and subsequent welding of loops of diaphragms adjacent to the building height.

The technical result of the claimed utility model is to reduce the complexity and material consumption of works on the erection of the building, reduce the time of installation of structures and increase the operational reliability of the frame.

The technical result is achieved due to the fact that a multi-storey building with a frame-coupled frame made of precast-monolithic reinforced concrete includes precast reinforced concrete columns running over several floors, reinforced concrete floor disks made in the form of monolithic reinforced concrete slabs; the building is equipped with stiffness diaphragms made on a floor with loop outlets for anchoring panels at the levels of monolithic reinforced concrete floors, foundations and with adjacent wall panels along the height of the building, characterized in that the stiffness diaphragms along the upper and lower faces have loop outlets of the same length, and loop the outlets on the upper face of the diaphragm are offset relative to the loop outlets on the lower side of the diaphragm, the upper side of the diaphragm has at least two support projections, the loop outlets on the lower and upper second faces of the diaphragm can be educated through the use of bent reinforcing mesh, rebar can be passed between the releases of two adjacent loop height diaphragms building.

Thus, the combination of the claimed features allows to reduce the complexity and material consumption of the erection of the building, reduce the time of installation of structures and increase the operational reliability of the frame.

The claimed technical solution has novelty, differing from the prototype of the above characteristics, and ensures the achievement of the technical result perceived by the applicant.

The inventive multi-storey building with a frame-coupled frame can be widely used in the construction of multi-storey buildings. The essence of the proposed multi-storey building with a frame-coupled frame is illustrated by the drawings:

in FIG. 1 - isometric view;

in FIG. 2 - front view;

in FIG. 3 - view / section on the right;

in FIG. 4 - isometric view;

in FIG. 5 - aperture.

The developed constructive solution of a multi-storey building with a frame-coupled frame made of precast-monolithic reinforced concrete includes precast concrete columns 1, reinforced concrete disks of floors 2 and diaphragms 3 of rigidity. Columns 1 are prefabricated reinforced concrete with a height of one or more floors. Diaphragms 3 stiffness, made on the floor with loop outlets 4, 5 for anchoring in the levels of monolithic reinforced concrete disks of floors 2, foundations and with adjacent diaphragms 3 along the height of the building. The stiffness diaphragms 3 along the upper 6 and lower 7 faces have loop outlets 4, 5 of the same length, and the loop outlets 4 on the upper face 6 of the diaphragm 3 are offset relative to the loop outlets 5 on the lower face 7 of the diaphragm 3. The working reinforcement of the diaphragm 3 is made by two bent grids 8 , 9, offset relative to each other along the diaphragm 3 by a certain distance, one such grid 8 protrudes beyond the upper face 6 of the diaphragm 3, and the other 9 protrudes from the lower face 7 of the diaphragm 3, forming, respectively, loop outlets 4, 5 of the same length. The upper face 6 of the diaphragm 3 has at least two supporting ledges 10 made of concrete, with a height of no more than the overlap thickness 2, for supporting the superior diaphragm 3. The reinforced concrete disks of the overlap 2 are formed during installation, are made flat with the possibility of reinforced concrete capitals.

During installation, first of all, by any means, prefabricated reinforced concrete columns 1 with a height of several floors are installed, ensuring design fixation with foundation structures. Columns 1 have gaps 11 at the level of overlappings 2, no larger than the thickness of overlap 2. Next, diaphragms 3 are installed. After reconciling each diaphragm 3, it is temporarily fixed with columns 1 using collapsible conductors 13 or other devices. The next step is the laying on the horizontal surface of the support projections 10 of the solution preparation layer, the field of which is the installation and temporary fixing of the diaphragms 3 of the next floor in a similar way. It can be noted that the diaphragms 3 of the subsequent floor are installed almost immediately, after the installation of the lower diaphragms 3, there is no need to wait for the curing time for overlapping 2. Loop outlets 4 on the upper face 6 of the diaphragm 3 are offset from the loop outlets 5 on the lower face 7 of the diaphragm 3, therefore , installation of the diaphragms 3 is facilitated, and the structure is strengthened by partially overlapping the loop outlets 4 on the upper face 6 of the lower diaphragm 3 and the lower face 7 of the upper diaphragm 3. After mounting the diaphragms 3 of both Already, a gap is formed between their ends, equal in size to the gap 11 of column 1 and the thickness of the floor 2. In accordance with the mark of the bottom of the floor, a formwork is installed, held by a system of inventory racks and distribution beam cells. Design reinforcement is laid in the formwork, which can be passed through the gaps of 11 columns 1, the gaps between the diaphragms 3 together with the loop outlets 4, 5 of the diaphragms 3, the same reinforcing rod 12 can be passed between the loop outlets along the horizontal faces 6, 7 of the diaphragms. When concreting the ceiling 2, gaps of 11 columns 1 are simultaneously filled, the gaps between the diaphragms 3 together with the loop outlets 4, 5 of the diaphragms 3 and the reinforcement, forming a disk of overlap 2.

After the concrete strength of the disk of overlap 2 is set, prefabricated-monolithic units of conjugation of prefabricated columns 1, diaphragms 3 and monolithic overlap 2 are formed, which ensure the frame to perceive vertical and horizontal loads.

Further, collapsible conductors 13 are dismantled and the diaphragms 3 are connected to the columns 1 only at the levels of floors 2. The assembled prefabricated monolithic units for interfacing vertical structures and flat floors are included in the spatial work of the building frame and allow you to refuse to connect the columns and diaphragms using embedded parts.

Claims (3)

1. A multi-storey building with a frame-coupled frame made of precast-monolithic reinforced concrete, including precast reinforced concrete columns running on several floors, reinforced concrete floor disks made in the form of monolithic reinforced concrete slabs; the building is equipped with stiffness diaphragms made on the floor with loop outlets for anchoring at the levels of monolithic reinforced concrete floors, foundations and with adjacent stiffness diaphragms in height of the building, characterized in that the stiffness diaphragms along the upper and lower faces have loop outlets of the same length, and loop outlets on the upper face of the diaphragm are offset relative to the loop outlets on the lower face of the diaphragm, the upper face of the diaphragm has at least two supporting protrusions. 2. A multi-storey building with a frame-coupled frame according to claim 1, characterized in that the loop outlets on the lower and upper faces of the diaphragm are formed through the use of bent reinforcing meshes. 3. A multi-storey building with a frame-coupled frame according to claim 1, characterized in that a reinforcing bar is missing between the looped outlets of two diaphragms adjacent to the height of the building.

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