CN111255260B - Prefabricated unit-based prefabricated house and construction method thereof - Google Patents
Prefabricated unit-based prefabricated house and construction method thereof Download PDFInfo
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- CN111255260B CN111255260B CN202010064377.9A CN202010064377A CN111255260B CN 111255260 B CN111255260 B CN 111255260B CN 202010064377 A CN202010064377 A CN 202010064377A CN 111255260 B CN111255260 B CN 111255260B
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- 238000010276 construction Methods 0.000 title claims abstract description 33
- 239000004567 concrete Substances 0.000 claims abstract description 96
- 229910000831 Steel Inorganic materials 0.000 claims description 170
- 239000010959 steel Substances 0.000 claims description 170
- 239000011178 precast concrete Substances 0.000 claims description 117
- 230000002787 reinforcement Effects 0.000 claims description 82
- 230000003014 reinforcing effect Effects 0.000 claims description 33
- 238000003466 welding Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
- E04H1/02—Dwelling houses; Buildings for temporary habitation, e.g. summer houses
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides an assembled house based on prefabricated units, which comprises a kitchen, a bedroom, a bathroom and a living room, wherein the kitchen, the bedroom and the bathroom are all prefabricated house units, each prefabricated house unit comprises a prefabricated concrete frame, each prefabricated concrete frame comprises a plurality of vertical prefabricated concrete columns, a horizontal prefabricated concrete beam is arranged at the upper end between every two adjacent prefabricated concrete columns, a prefabricated concrete floor slab is arranged at the upper end of each prefabricated concrete beam, the living room comprises a plurality of vertical positioning concrete columns, and a positioning concrete beam is arranged between the upper ends of every two adjacent positioning concrete columns. The invention adopts the matching of factory-prepared prefabricated housing units and field-operable design, thus improving the construction efficiency, ensuring the construction quality and meeting the diversified requirements of customers.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to an assembled house based on prefabricated units and a construction method thereof.
Background
The prefabricated building comprises a plurality of building units, the existing building units are usually prefabricated PC parts and are transported to a construction site to be assembled on the construction site, the building units are formed by casting the connecting nodes in situ, and the building units are combined into the prefabricated building, so that the construction progress is influenced, and the strength and the stability of the connecting nodes cannot be ensured; in addition, the existing fabricated house has the problems of poor stability and strength due to the assembly of different floors and the assembly between the floors and the foundation; in addition, prefabricated houses generally include bedrooms, kitchens, toilets and living rooms, and if each unit is of a prefabricated structure, individual requirements cannot be met.
The precast concrete component has very important effect to improving the bulk strength and the stability of prefabricated house, and in the prior art, the mode of concrete and steel structure cooperation is usually adopted, but has following problem: the existing steel structure has limited bearing capacity, most of the stress is still born by the concrete part, the requirement on the strength of the concrete is high, and the cost of the member is increased; the binding property between the steel structure and the concrete is not strong, so that the concrete and the steel structure are easy to peel off, and the strength of the precast concrete member is influenced; in addition, the connection mode or the connection node between the precast concrete components influences the stability and the strength of the overall structure of the house. The production efficiency of prefabricated house has been decided to connected mode's between connected node and the prefabricated beam column fast convenient, but in current prefabricated house, there is the insecure connection in the connected node between the beam column, the complicated scheduling problem of construction methods.
The concrete precast slabs are precast in factories and assembled on the existing construction sites, the existing concrete precast slabs generally comprise concrete slabs and frames pre-buried in the concrete slabs, the frame structures have the problems of low strength or complex processing operation, and the precast slabs are inconvenient to be connected with other structures on the construction sites, so that the construction efficiency is reduced.
Disclosure of Invention
The invention provides an assembled house based on prefabricated units and a construction method thereof.
The technical scheme of the invention is realized as follows: the utility model provides an assembled house based on prefabricated unit, includes kitchen, bedroom, bathroom and sitting room, kitchen, bedroom and bathroom all adopt prefabricated house unit, prefabricated house unit includes the precast concrete frame, and the precast concrete frame includes a plurality of vertical precast concrete post, and upper end between the adjacent precast concrete post is provided with horizontally precast concrete beam, and precast concrete beam's upper end is provided with precast concrete floor, the sitting room includes many vertical positioning concrete posts, is provided with the positioning concrete beam between the upper end of adjacent positioning concrete post.
Furthermore, hollow square shells are arranged at the upper end and the lower end of the precast concrete column, a through hole and a plurality of connecting holes are formed in each side wall of each square shell, exposed steel parts and positioning steel plates for positioning and reserving the exposed steel parts are arranged at the end parts of the precast concrete column and the precast concrete beam, the exposed steel parts are reserved and correspond to the connecting holes of the corresponding side walls one to one, the end parts of the exposed steel parts are reserved and penetrate through the corresponding connecting holes to be arranged in the square shells or arranged on the outer sides of the square shells, the end parts of the exposed steel parts are reserved and connected with locking nuts, and the square shells, the precast concrete column and the precast concrete beam are connected through pouring concrete.
Furthermore, column section steel is embedded in the precast concrete column along the axial direction, beam section steel is embedded in the precast concrete beam along the axial direction, positioning steel plates are welded and fixed to the end portions of the column section steel and the beam section steel, exposed steel parts are reserved as embedded bolts, and one ends, far away from the square shell, of the embedded bolts penetrate through the positioning steel plates and are embedded in the precast concrete column or the precast concrete beam.
Further, precast concrete post and precast concrete roof beam structure as an organic whole, the both sides of precast concrete post lower extreme all are provided with down reserves expose the groove, it exposes the inslot along vertical pre-buried connected node to reserve down, pre-buried connected node includes pre-buried reinforcing bar down, outer sleeve and reinforcing bar thread bush, outer sleeve one end is pre-buried in precast concrete post, the reservation exposes the groove under the other end stretches out, reinforcing bar thread bush arranges in the outer sleeve, with the one end threaded connection of pre-buried reinforcing bar down, the other end of pre-buried reinforcing bar is pre-buried in precast concrete post down, be provided with the operation through-hole that is used for screwing up reinforcing bar thread bush on the lateral wall of outer sleeve, the both sides of precast concrete post upper end all are provided with reserves and expose the groove, on.
Further, be provided with precast concrete wallboard between the adjacent precast concrete post, including concrete slab and pre-buried frame in concrete slab, the frame includes the square frame of compriseing vertical steel pipe and horizontal steel pipe end to end, be provided with the reinforcing bar net in the square frame, the reinforcing bar net is including being horizontal reinforcing bar and the vertical reinforcing bar of netted arranging, the interval is provided with a plurality of vertical support steel pipes in the square frame, horizontal reinforcing bar passes the support steel pipe, and with the perforation welding on the support steel pipe link to each other, vertical steel pipe, horizontal steel pipe and support steel intraductal all packing have the concrete.
Furthermore, the end portions of the transverse steel bars penetrate through the vertical steel pipes and are exposed out of the vertical side walls of the concrete slabs to form transverse reserved steel bars, the end portions of the vertical steel bars penetrate through the transverse steel pipes and are exposed out of the transverse side walls of the concrete slabs to form vertical reserved steel bars, the transverse steel bars are fixedly connected with the through holes in the vertical steel pipes in a welding mode, and the vertical steel bars are fixedly connected with the through holes in the transverse steel pipes in a welding mode.
Further, a shaped steel concrete prefabricated housing unit still includes the ground, is provided with pre-buried connecting bolt corresponding to the position of precast concrete post on the ground, is provided with the pre-buried steel reinforcement cage of horizontally on the ground between the adjacent precast concrete post.
Furthermore, a lower connecting beam is arranged between the lower ends of the adjacent precast concrete columns, an exposed reinforcement cage is reserved at the lower end of the lower connecting beam, and the exposed reinforcement cage is connected with the embedded reinforcement cage.
A construction method of a prefabricated-unit-based prefabricated house comprises the following steps:
(1) laying a foundation according to a house structure, and arranging an embedded connecting bolt and an embedded steel reinforcement cage;
(2) prefabricating the prefabricated house units in a factory, then transporting to a construction site, assembling corresponding to the positions of a kitchen, a bedroom and a bathroom, penetrating the embedded connecting bolts through the corresponding connecting holes and placing the embedded connecting bolts in the square shell, and connecting nuts in a threaded connection mode; or the embedded connecting bolts are inserted into the corresponding outer sleeves and are in threaded connection with the steel bar threaded sleeves;
(3) fixedly connecting the embedded reinforcement cage with the exposed reinforcement cage of the corresponding lower connecting beam or the vertical reserved reinforcement at the lower end of the precast concrete wallboard, and then pouring concrete along the embedded reinforcement cage and the embedded connecting bolt to complete the connection of the foundation and the precast house unit;
(4) according to the living room structure, positioning concrete columns are assembled along the foundation, and positioning concrete beams are assembled between the upper ends of adjacent positioning concrete columns.
The invention has the beneficial effects that:
the prefabricated housing units corresponding to the kitchen, the bedroom and the bathroom can complete all prefabrication and on-site hoisting in a factory, the construction cost is reduced, the prefabricated housing units are suitable for popularization, various forms of fabricated buildings can be formed according to needs, the construction efficiency is improved, the quality guarantee is realized, the environment is protected, the energy is saved, and the construction quality is improved; according to the design scheme, the positioning concrete columns and the positioning concrete beams can be cast in situ or prefabricated in factories and assembled in situ in the living room.
The beam column can be used for building a profile steel frame or a steel reinforcement cage frame according to the precast concrete frame, and the connecting piece is convenient to connect, stable in structure and high in connecting strength. The beam column adopts square casing and reserves to expose the steel part and links to each other, carries out the post-cast shaping after connecting the completion, can pour the shaping together with the beam column frame, also can pour the shaping after, strengthens the stability and the intensity of beam column connection, and the assembly is swift convenient, and applicable in the building of different floors, also can satisfy the stability of strength demand to high-rise building.
The invention adopts the pre-embedded connecting nodes to facilitate the connection between upper and lower floors and between the floors and the foundation, thereby improving the connection efficiency, and the stability and the strength after the connection.
The precast concrete wallboard disclosed by the invention is characterized in that the vertical steel pipes, the transverse steel pipes and the supporting steel pipes are filled with concrete, so that the strength of the frame is improved, the reinforcing mesh strengthens the stability of the frame structure and the connection between the frame and the concrete slab, the stability and the strength of the precast concrete wallboard structure are ensured, and the precast concrete wallboard is convenient to process and produce; horizontal reserved reinforcing bar, vertical reserved reinforcing bar are convenient for link to each other with other concrete prefabricated component, have improved the efficiency of construction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a precast concrete frame of the second embodiment;
FIG. 3 is a schematic structural view showing the assembly of a precast concrete frame according to the second embodiment;
FIG. 4 is a partial schematic view of A in FIG. 3;
fig. 5 is a schematic structural view of a precast concrete frame of the third embodiment;
FIG. 6 is a schematic structural view showing the assembly of a third precast concrete frame according to the embodiment;
FIG. 7 is a partial schematic view of C in FIG. 6;
FIG. 8 is a schematic structural view of a steel column in a straight line shape;
FIG. 9 is a schematic structural view of a column-shaped steel in a cross shape;
fig. 10 is a schematic structural view of a reinforcement cage of the fourth embodiment;
FIG. 11 is a schematic structural view of a fourth precast concrete frame according to the embodiment;
FIG. 12 is a schematic view of D of FIG. 11;
FIG. 13 is a schematic structural view showing an assembly of four precast concrete frames according to the embodiment;
FIG. 14 is a schematic structural view of a precast concrete wall panel;
FIG. 15 is a top view of the foundation;
fig. 16 is a front view of the foundation.
Kitchen 1, bedroom 2, bathroom 3, living room 4, precast concrete column 5, precast concrete beam 6, precast concrete floor 7, positioning concrete column 8, square shell 9, through hole 10, connecting hole 11, reserved exposed steel part 12, positioning steel plate 13, shaft reinforcement cage 14, main reinforcement 15, stirrup 16, lower connecting beam 17, connecting reinforcement cage 18, lock nut 19, column steel 20, beam profile steel 21, connecting plate 22, reinforcement node 23, column reinforcement cage 24, beam reinforcement cage 25, reserved exposed groove 26, lower embedded reinforcement 27, outer sleeve 28, reinforcement threaded sleeve 29, reserved exposed groove 30 on, upper embedded reinforcement 31, construction reinforcement 32, precast concrete wall plate 33, vertical steel pipe 34, horizontal steel pipe 35, horizontal reinforcement 36, vertical reinforcement 37, support steel pipe 38, horizontal reserved reinforcement 39, vertical reinforcement 40, foundation 41, pre-buried connecting bolt 42, a connecting nut 43, an embedded reinforcement cage 44 and an exposed reinforcement cage 45.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example one
As shown in figure 1, an assembled house based on prefabricated unit, including kitchen 1, bedroom 2, bathroom 3 and sitting room 4, kitchen 1, bedroom 2 and bathroom 3 all adopt prefabricated house unit, prefabricated house unit includes the precast concrete frame, and the precast concrete frame includes a plurality of vertical precast concrete post 5, and the upper end between the adjacent precast concrete post 5 is provided with horizontally precast concrete roof beam 6, and precast concrete roof beam 6 upper end is provided with precast concrete floor 7, has seted up the stair mouth as required on the precast concrete floor 7. The living room 4 comprises a plurality of vertical positioning concrete columns 8, and a positioning concrete beam is arranged between the upper ends of the adjacent positioning concrete columns 8.
The application method of the embodiment comprises the following steps: the living room 4 usually has different requirements according to the area of the site or the customer demand, but the kitchen 1, the bedroom 2, the demand of 3 different customers in bathroom is the same basically, according to the housing structure prefabricated housing unit of factory production, including kitchen 1, the bedroom 2 and the bathroom 3, then transport to the job site, assemble according to the housing structure, living room 4 is according to the design scheme, along 41 assembly many with positioning concrete post 8 of foundation, be equipped with the positioning concrete roof beam between the upper end of adjacent positioning concrete post 8, positioning concrete post 8 and positioning concrete roof beam can adopt the site pouring, also can adopt the factory prefabrication, the site assembly, adopt this method, can improve the efficiency of construction, guarantee construction quality, can satisfy customer's pluralism demand simultaneously again.
Example two
This embodiment is substantially the same as the first embodiment, except that: as shown in fig. 2-4, the upper and lower ends of the precast concrete column 5 are provided with hollow square casings 9, each side wall of each square casing 9 is provided with a through hole 10 and a plurality of connecting holes 11, the end portions of the precast concrete column 5 and the precast concrete beam 6 are provided with reserved exposed steel parts 12 and positioning steel plates 13 embedded with the reserved exposed steel parts 12 for positioning, the reserved exposed steel parts 12 correspond to the connecting holes 11 of the corresponding side walls one to one, the precast concrete column 5 and the precast concrete beam 6 are embedded with axle reinforcement cages 14, each axle reinforcement cage 14 comprises a main reinforcement 15 and stirrups 16 sleeved outside the main reinforcement 15, and the portion of the end portion of the main reinforcement 15 penetrating through the positioning steel plates 13 is the reserved exposed steel parts 12.
The end part of a reserved exposed steel part 12 at the upper end of the precast concrete column 5 passes through the corresponding connecting hole 11 and is arranged at the upper end of the square shell 9, and the end part of a reserved exposed steel part 12 at the lower end passes through the corresponding connecting hole 11 and is arranged in the square shell 9; the end part of the reserved exposed steel part 12 at one end of the precast concrete beam 6 penetrates through the corresponding connecting hole 11 and is arranged in the square shell 9, the end part of the reserved exposed steel part 12 at the other end penetrates through the corresponding connecting hole 11 and is arranged on the outer side of the square shell 9, the end part of the reserved exposed steel part 12 is in threaded connection with a locking nut 19, the reserved exposed steel part 12 can be sleeved with a positioning nut which is abutted against the outer side wall of the square shell 9, the square shell 9 can be conveniently assembled on the same horizontal plane, and the square shell 9, the precast concrete column 5 and the precast concrete beam 6 are connected through pouring concrete.
The application method of the embodiment comprises the following steps: the prefabricated concrete column 5 and the reserved exposed steel part 12 of the prefabricated concrete beam 6 penetrate through the corresponding connecting holes 11 and are arranged in the square shell 9, and the end part of the reserved exposed steel part 12 in the square shell 9 is in threaded connection with a locking nut 19 through the through hole 10.
According to the structure of the beam column framework, a reinforcement cage of a precast concrete column 5 and a reinforcement cage of a precast concrete beam 6 are woven, the reinforcement cages are connected through a square shell 9, then templates are fixed on the outer sides of the reinforcement cages and the square shell 9, concrete is poured in a factory, and one-step forming of the beam column framework is achieved; or respectively manufacturing a precast concrete column 5 and a precast concrete beam 6, and finally reserving exposed reinforcing steel bars to be connected with the square shell 9 for concrete pouring; the beam column frame is manufactured in a factory and then transported to a construction site for assembly.
In the step (2), if the prefabricated house is a multi-layer prefabricated house, the prefabricated beam column frames can be transported to a construction site, the prefabricated house is assembled according to needs, if two beam column frames are vertically stacked together, the reserved exposed steel part 12 at the upper end of the prefabricated concrete column 5 is inserted into the square shell 9 of the beam column frame on the upper layer, then the locking nut 19 is connected, finally the concrete of the square shell 9 is poured, the connection of the upper layer and the lower layer is completed, similarly, if the left beam column frame and the right beam column frame are horizontally stacked together, the reserved exposed steel part 12 at one end of the prefabricated concrete beam 6 is inserted into the square shell 9 of the adjacent beam column frame, and then the concrete pouring of the square shell 9 is performed.
EXAMPLE III
This embodiment is substantially the same as the second embodiment, except that: as shown in fig. 5-9, column section steel 20 is embedded in the precast concrete column 5 along the axial direction, beam section steel 21 is embedded in the precast concrete beam 6 along the axial direction, the column section steel 20 or the beam section steel 21 is straight-line-shaped steel or cross-shaped steel, a connecting plate 22 is vertically welded and fixed to the end portion of the side wall of the column section steel 20 and the beam section steel 21, the column section steel 20 and the beam section steel 21 may also be integrated with the connecting plate 22, a plurality of reinforcing bar nodes 23 are welded and fixed to the outer side of the connecting plate 22, a plurality of stirrups 16 are sleeved on the outer sides of the column section steel 20 and the beam section steel 21 at intervals, the stirrups 16 are connected to the reinforcing bar nodes 23, positioning steel plates 13 are welded and, one end of the embedded bolt far away from the square shell 9 penetrates through the positioning steel plate 13 and is embedded in the precast concrete column 5 or the precast concrete beam 6.
The application method of the embodiment comprises the following steps: according to the structure of the beam-column framework, the column section steel 20 and the beam section steel 21 are fixed together through the square shell 9 to form the section steel framework, then the template is fixed on the outer side of the section steel framework, concrete pouring is carried out in a factory, and one-step forming of the beam-column framework is achieved. In the embodiment, the steel reinforcement cage of the second embodiment replaces the formed steel, the structural strength of the precast concrete column 5 and the precast concrete beam 6 is improved, and the requirement on the strength of the concrete part is reduced, so that the cost of the beam column framework is reduced.
Example four
The first embodiment is substantially the same as the first embodiment, except that: as shown in fig. 10-13, a column reinforcement cage 24 is embedded in the precast concrete column 5 along the axial direction, a beam reinforcement cage 25 is embedded in the precast concrete beam 6 along the axial direction, the intersection of the column reinforcement cage 24 and the beam reinforcement cage 25 is fixedly connected through a reinforcement, and the precast concrete column 5 and the precast concrete beam 6 are of an integral structure.
Both sides of 5 lower extremes of precast concrete post all are provided with down the reservation and expose groove 26, it exposes groove 26 to reserve down and follow vertical pre-buried connected node that is provided with, pre-buried connected node includes embedded steel bar 27 down, outer sleeve 28 and reinforcing bar thread bush 29, outer sleeve 28 one end is pre-buried in precast concrete post 5, the other end stretches out to reserve down and exposes groove 26, reinforcing bar thread bush 29 is arranged in outer sleeve 28, with embedded steel bar 27's one end threaded connection down, embedded steel bar 27's the other end is pre-buried in precast concrete post 5 down, be provided with operation through-hole 10 on outer sleeve 28's the lateral wall, include reinforcing bar thread bush 29 through outer sleeve 28, avoid the concrete to be pre-buried reinforcing bar thread bush 29, influence the connection operation in later stage, simultaneously 28 also are favorable to improving the joint strength.
The two sides of the upper end of the precast concrete column 5 are provided with upper reserved exposed grooves 30, and upper embedded steel bars 31 are arranged in the upper reserved exposed grooves 30. The column reinforcement cage 24 comprises a construction bar 32 and a stirrup 16 sleeved outside the construction bar 32, wherein the end part of the construction bar 32 in the upper reserved exposed groove 30 is an upper embedded bar 31, and the end part of the construction bar 32 in the lower reserved exposed groove 26 is a lower embedded bar 27.
A lower connecting beam 17 is arranged between the lower ends of the adjacent precast concrete columns 5, a connecting reinforcement cage 18 is embedded in the lower connecting beam 17, and the connecting reinforcement cage 18 is fixedly connected with a column reinforcement cage 24 through a reinforcement and can be poured and formed together with the beam column framework. The lower connecting beam 17 is also beneficial to hoisting the beam-column frame, and deformation of the beam-column frame in the hoisting process is avoided.
The application method of the embodiment comprises the following steps: the structure is suitable for three-layer and below 3-layer assembled buildings. According to the structure of the precast concrete frame, the column reinforcement cage 24 and the beam reinforcement cage 25 are fixed together to form a reinforcement frame, then the template is fixed on the outer side of the reinforcement frame, concrete pouring is carried out in a factory, and one-step forming of the beam column frame is achieved. And then, the beam column frame is transported to a construction site for assembly, when the upper beam column frame and the lower beam column frame are assembled, the upper embedded steel bars 31 of the lower beam column frame are inserted into the outer sleeve 28, the steel bar threaded sleeve 29 of the upper beam column frame is rotated through the operation through hole 10, the connection between the steel bar threaded sleeve 29 and the upper embedded steel bars 31 is realized, the outer sleeve 28 is also provided with grouting holes and grout outlet holes, and the connection between the upper beam column frame and the lower beam column frame is realized by pouring concrete into the outer sleeve 28, the upper reserved exposed groove 30 and the lower reserved exposed groove 26.
EXAMPLE five
This embodiment is substantially the same as the first embodiment, except that: as shown in fig. 14, precast concrete wall panels 33 are arranged between adjacent precast concrete columns 5, and the number of the precast concrete wall panels 33 is determined according to actual needs, and may be 0, 2, 3, or four; the precast concrete wallboard 33 comprises a concrete slab and a frame embedded in the concrete slab, the frame comprises a square frame formed by welding and connecting vertical steel pipes 34 and transverse steel pipes 35 end to end, a reinforcing mesh is arranged in the square frame and comprises transverse reinforcing steel bars 36 and vertical reinforcing steel bars 37 which are in mesh-shaped cross arrangement, a plurality of vertical supporting steel pipes 38 are arranged in the square frame at intervals, the end parts of the supporting steel pipes 38 are welded and connected with the side walls of the transverse steel pipes 35, the transverse reinforcing steel bars 36 penetrate through the supporting steel pipes 38 and are welded and connected with through holes in the supporting steel pipes 38, and concrete is filled in the vertical steel pipes 34, the transverse steel pipes 35 and the supporting steel pipes 38.
The end parts of the transverse steel bars 36 penetrate through the vertical steel pipe 34 and are exposed out of the vertical side wall of the concrete slab to form transverse reserved steel bars 39, the end parts of the vertical steel bars 37 penetrate through the transverse steel pipe 35 and are exposed out of the transverse side wall of the concrete slab to form vertical reserved steel bars 40, the transverse steel bars 36 are fixedly connected with the through holes in the vertical steel pipe 34 in a welding mode, and the vertical steel bars 37 are fixedly connected with the through holes in the transverse steel pipe 35 in a welding mode.
The application method of the embodiment comprises the following steps: concrete curing is filled in the vertical steel pipe 34, the transverse steel pipe 35 and the support steel pipe 38, and through holes for allowing transverse steel bars 36 and vertical steel bars 37 to pass through are formed; the vertical steel pipes 34, the horizontal steel pipes 35 and the support steel pipes 38 are welded and fixed according to the structure of the frame, and the reinforcing mesh is installed. When the precast concrete wall panel 33 is connected with the beam column mechanism, the side wall of the column steel 20 or the reinforcement cage of the precast concrete column 5 is reserved with an unfired part, the exposed reinforcement node 23 of the horizontal reserved reinforcement 39 of the precast concrete wall panel 33 or the shaft reinforcement cage 14 is fixedly connected, the lower end of the beam steel 21 or the shaft reinforcement cage 14 of the precast concrete beam 6 is reserved with an unfired part, the vertical reserved reinforcement 40 at the upper end of the precast concrete wall panel 33 is fixedly connected with the beam steel 21 or the exposed reinforcement node 23, and finally concrete is poured into the corresponding part, so that the precast concrete wall panel 33 is fixed.
EXAMPLE six
This embodiment is substantially the same as the second or fourth embodiment, except that: as shown in fig. 15 and 16, a steel reinforced concrete prefabricated housing unit further comprises a foundation 41, a pre-embedded connecting bolt 42 is arranged on the foundation 41 corresponding to the position of the precast concrete column 5, the upper end of the pre-embedded connecting bolt 42 penetrates through the corresponding connecting hole 11 and is arranged in the square shell 9, and a connecting nut 43 is arranged, a horizontal pre-embedded steel reinforcement cage 44 is arranged on the foundation 41 between the adjacent precast concrete columns 5, or the pre-embedded connecting bolt 42 is in threaded connection with the steel reinforcement threaded sleeve 29, then concrete is poured to fixedly connect the pre-embedded steel reinforcement cage 44, the pre-embedded connecting steel reinforcement and the lower reserved exposed groove 26, and the stability and the strength of the connection between the beam column frame and the foundation 41 are achieved.
As shown in fig. 11, an exposed reinforcement cage 45 is reserved at the lower end of the lower connecting beam 17, the exposed reinforcement cage 45 is connected with the embedded reinforcement cage 44, when the beam column framework is connected with the foundation 41, the exposed reinforcement cage 45 is fixedly connected with the embedded reinforcement cage 44, and then concrete is poured to further enhance the stability and strength of the connection. If there is a precast concrete wall panel 33 between adjacent precast concrete columns 5, the lower connecting beam 17 may not be provided.
EXAMPLE seven
One embodiment is a construction method of a prefabricated unit-based prefabricated building, comprising the following steps of:
(1) as shown in fig. 15, a foundation 41 is laid according to a house structure, and an embedded connecting bolt 42 and an embedded reinforcement cage 44 are provided;
(2) prefabricating the prefabricated house units in a factory, then transporting to a construction site, assembling corresponding to the positions of a kitchen 1, a bedroom 2 and a bathroom 3, placing the embedded connecting bolts 42 into the square shell 9 through the corresponding connecting holes 11, and connecting nuts 43 in a threaded manner; or the embedded connecting bolt 42 is inserted into the corresponding outer sleeve 28 and is in threaded connection with the steel bar threaded sleeve 29;
(3) fixedly connecting the embedded reinforcement cage 44 with the exposed reinforcement cage 45 of the corresponding lower connecting beam 17 or the vertical reserved reinforcement 40 at the lower end of the precast concrete wallboard 33, and then pouring concrete along the embedded reinforcement cage 44 and the embedded connecting bolt 42 to complete the connection of the foundation 41 and the precast house unit;
(4) according to the structure of the living room 4, positioning concrete columns 8 are assembled along the foundation 41, and positioning concrete beams are assembled between the upper ends of the adjacent positioning concrete columns 8.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides an assembled house based on prefabricated unit, includes kitchen, bedroom, bathroom and sitting room, its characterized in that: the kitchen, the bedroom and the bathroom are all prefabricated house units, each prefabricated house unit comprises a prefabricated concrete frame, each prefabricated concrete frame comprises a plurality of vertical prefabricated concrete columns, a horizontal prefabricated concrete beam is arranged at the upper end between every two adjacent prefabricated concrete columns, a prefabricated concrete floor is arranged at the upper end of each prefabricated concrete beam, the living room comprises a plurality of vertical positioning concrete columns, and a positioning concrete beam is arranged between the upper ends of every two adjacent positioning concrete columns;
the upper and lower both ends of precast concrete post all are provided with hollow square casing, all be provided with through-hole and a plurality of connecting hole on each lateral wall of square casing, the tip of precast concrete post and precast concrete beam all is provided with reserves exposes steel component and pre-buries and is used for the location to reserve the location steel sheet that exposes the steel component, reserve the connecting hole one-to-one that exposes steel component and correspond the lateral wall, the tip of reserving to expose the steel component passes the connecting hole that corresponds and arranges in the square casing or arrange the outside of square casing in, the tip that reserves to expose the steel component is connected with lock nut, square casing, precast concrete post and precast concrete beam link to each other through concreting.
2. The prefabricated unit based prefabricated building of claim 1, wherein: column section steel is embedded in the precast concrete column along the axial direction, beam section steel is embedded in the precast concrete beam along the axial direction, positioning steel plates are welded and fixed to the end portions of the column section steel and the beam section steel, exposed steel parts are reserved as embedded bolts, one end, far away from the square shell, of each embedded bolt penetrates through the positioning steel plates and is embedded in the precast concrete column or the precast concrete beam.
3. The prefabricated unit based prefabricated building of claim 1, wherein: precast concrete post and precast concrete roof beam structure as an organic whole, the both sides of precast concrete post lower extreme all are provided with down reserves and expose the groove, reserve down and expose the inslot and follow vertical pre-buried connected node that is provided with down, pre-buried connected node includes pre-buried reinforcing bar down, outer sleeve and reinforcing bar thread bush, outer sleeve one end is pre-buried in precast concrete post, the other end stretches out and reserves down and exposes the groove, reinforcing bar thread bush arranges the outer sleeve in, one end threaded connection with pre-buried reinforcing bar down, the other end of pre-buried reinforcing bar is pre-buried in precast concrete post down, be provided with the operation through-hole that is used for screwing up reinforcing bar thread bush on the lateral wall of outer sleeve, the both sides of precast concrete post upper end all are provided with.
4. The prefabricated unit based prefabricated building of claim 1, wherein: be provided with precast concrete wallboard between adjacent precast concrete post, including concrete slab and pre-buried frame in concrete slab, the frame includes the square frame of compriseing vertical steel pipe and horizontal steel pipe end to end, be provided with the reinforcing bar net in the square frame, the reinforcing bar net is including being netted horizontal reinforcing bar and the vertical reinforcing bar of arranging, the interval is provided with a plurality of vertical support steel pipes in the square frame, horizontal reinforcing bar passes the support steel pipe, and with the perforation welding on the support steel pipe link to each other, vertical steel pipe, horizontal steel pipe and support steel intraductal all packing have the concrete.
5. The prefabricated unit based prefabricated building of claim 4, wherein: the end part of the transverse steel bar penetrates through the vertical steel pipe and is exposed out of the vertical side wall of the concrete slab to form a transverse reserved steel bar, the end part of the vertical steel bar penetrates through the transverse steel pipe and is exposed out of the transverse side wall of the concrete slab to form a vertical reserved steel bar, the transverse steel bar is fixedly connected with a through hole in the vertical steel pipe in a welding mode, and the vertical steel bar is fixedly connected with a through hole in the transverse steel pipe in a welding mode.
6. The prefabricated unit based prefabricated building of claim 1, wherein: the prefabricated concrete column-embedded steel reinforcement cage foundation is characterized by further comprising a foundation, wherein embedded connecting bolts are arranged on the foundation corresponding to the prefabricated concrete columns, and a horizontal embedded steel reinforcement cage is arranged on the foundation between the adjacent prefabricated concrete columns.
7. The prefabricated unit based prefabricated building of claim 6, wherein: and a lower connecting beam is arranged between the lower ends of the adjacent precast concrete columns, an exposed reinforcement cage is reserved at the lower end of the lower connecting beam, and the exposed reinforcement cage is connected with the embedded reinforcement cage.
8. A construction method of the prefabricated unit based prefabricated house according to any one of claims 1 to 7, comprising the steps of:
(1) laying a foundation according to a house structure, and arranging an embedded connecting bolt and an embedded steel reinforcement cage;
(2) prefabricating the prefabricated house units in a factory, then transporting to a construction site, assembling corresponding to the positions of a kitchen, a bedroom and a bathroom, penetrating the embedded connecting bolts through the corresponding connecting holes and placing the embedded connecting bolts in the square shell, and connecting nuts in a threaded connection mode; or the embedded connecting bolts are inserted into the corresponding outer sleeves and are in threaded connection with the steel bar threaded sleeves;
(3) fixedly connecting the embedded reinforcement cage with the exposed reinforcement cage of the corresponding lower connecting beam or the vertical reserved reinforcement at the lower end of the precast concrete wallboard, and then pouring concrete along the embedded reinforcement cage and the embedded connecting bolt to complete the connection of the foundation and the precast house unit;
(4) according to the living room structure, positioning concrete columns are assembled along the foundation, and positioning concrete beams are assembled between the upper ends of adjacent positioning concrete columns.
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| CN112779992A (en) * | 2021-01-22 | 2021-05-11 | 何桂清 | Prefabricated reinforced concrete integral house module and method for hoisting combined building |
| CN115450472A (en) * | 2021-06-08 | 2022-12-09 | 吴忠来 | Assembled concrete structure villa |
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