CN113266075A - Bolt connection full-precast concrete prefabricated house and construction method thereof - Google Patents
Bolt connection full-precast concrete prefabricated house and construction method thereof Download PDFInfo
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- CN113266075A CN113266075A CN202110619559.2A CN202110619559A CN113266075A CN 113266075 A CN113266075 A CN 113266075A CN 202110619559 A CN202110619559 A CN 202110619559A CN 113266075 A CN113266075 A CN 113266075A
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 239000011178 precast concrete Substances 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 78
- 239000010959 steel Substances 0.000 claims abstract description 78
- 239000004567 concrete Substances 0.000 claims abstract description 60
- 238000005192 partition Methods 0.000 claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 18
- 238000009415 formwork Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 238000004870 electrical engineering Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005034 decoration Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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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
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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
-
- 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
-
- 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
-
- 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
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/023—Separate connecting devices for prefabricated floor-slabs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
- E04G17/0651—One-piece elements
- E04G17/0652—One-piece elements fully recoverable
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a bolt-connected full-precast concrete prefabricated house and a construction method thereof, wherein the prefabricated house comprises beams, columns, floor slabs, walls and stairs, and the walls are shear walls and partition walls; the beam, the column, the floor slab, the wall and the stair are all concrete prefabricated components, wherein the partition wall is a lightweight concrete wall, and the concrete prefabricated components are connected through bolts; the pillars are invisible pillars. The invention combines the advantages of the concrete assembly type building and the steel structure assembly type building, has safe and reliable member connection nodes, convenient construction, good earthquake resistance, low labor intensity of workers, fast construction progress, high assembly rate and wide application range, can realize standardized production and further reduce the construction cost.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a bolt connection full precast concrete prefabricated house and a construction method thereof.
Background
Buildings assembled from prefabricated elements at the site are called fabricated buildings. The fabricated building is mainly divided into a concrete fabricated building and a steel structure fabricated building; at present, the problems of poor fireproof performance and cold bridge and hot bridge of a steel structure assembly type building generally exist; the concrete fabricated building generally has the problems that the grouting quality of a vertical steel bar sleeve is difficult to guarantee, the grouting connection cost of the sleeve is high, the installation is difficult, the construction efficiency is low, the integrity is poor and the like.
In addition, in the traditional concrete fabricated building, only part of structural members are assembled, and after the main structure is installed, subsequent projects such as window installation, heat insulation construction and exterior wall coating construction are required, and the installation of full prefabricated members is not realized.
Disclosure of Invention
The invention provides a bolt connection full-prefabricated concrete assembled house and a construction method thereof, which combine the advantages of a concrete assembled building and a steel structure assembled building, and have the advantages of safe and reliable member connection nodes, convenient construction, good earthquake resistance, low labor intensity of workers, fast construction progress, high assembly rate and wide application range, and can realize standardized production so as to reduce the construction cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bolt connection full precast concrete prefabricated house comprises beams, columns, floor slabs, walls and stairs, wherein the walls are shear walls and partition walls; the beam, the column, the floor slab, the wall and the stair are all concrete prefabricated components, wherein the partition wall is a lightweight concrete wall, and the concrete prefabricated components are connected through bolts; the pillars are invisible pillars.
The partition wall adopts the ALC board.
The columns comprise standard columns and special-shaped columns, the standard columns comprise linear columns, T-shaped columns and corner columns, and the columns except the standard columns are special-shaped columns; the limb widths of the standard column and the special-shaped column are the same as the widths of the beams or walls correspondingly connected with the standard column and the special-shaped column.
The connection structure of the column and the beam is as follows:
notches are reserved on the bottom of the upper-layer column and the top of the lower-layer column respectively corresponding to the mounting sides of the beam, and the upper-layer column and the lower-layer column form a beam mounting hole together; two ends of the beam are respectively located on the lower-layer column and are positioned in the notches on the corresponding sides; the end part of the beam is lower than the height of the beam body, notches are reserved on two sides of the end part of the beam respectively, and a plurality of embedded steel bar hooks extend into the notches from the inside of the beam and are used for being connected with column top embedded bolts of the lower-layer column; a beam end steel plate is preset on the end surface of the beam and is tightly attached to the outer side of the column; a column bottom steel plate is preset at the bottom of the upper-layer column, a plurality of column top embedded bolts are arranged at the corresponding notches of the lower-layer column, and the column top embedded bolts penetrate through a plurality of embedded steel bar hooks on two sides of the beam and the column bottom steel plate upwards and are fastened through nuts; after the column, the beam and the floor slab are installed, the beam installation hole is filled and leveled by concrete with the same mark number as the column.
Template split bolt preformed holes are preset at two ends of the beam and are used for the template split bolts to pass through; when the beam mounting hole is filled and smoothed with concrete, templates are respectively mounted on two sides of the beam mounting hole, and the templates on the two sides are fixedly connected through template split bolts; the upper part of the template is preset with a grouting hole and an exhaust hole; the width of the beam end steel plate is equal to the width of the beam in the corresponding direction.
The shear wall is arranged in a frame formed by the beams and the columns; the connection structure of the shear wall, the beam and the column is as follows:
the shear wall is connected with the beam through a plurality of beam top embedded bolts I; the top of the beam is longitudinally provided with a plurality of beam top embedded bolts I, the shear wall is provided with a first connecting steel plate at the extending part corresponding to the first beam top embedded bolts I in a preset mode, the shear wall on the inner side of the first connecting steel plate is provided with bolt mounting holes in a preset mode, and the first beam top embedded bolts sequentially penetrate through the floor and the first connecting steel plate and then extend into the corresponding bolt mounting holes and are fastened through nuts; before being connected with the shear wall, filling and compacting a gap between the floor slab and the beam top;
the shear wall is connected with the column through a plurality of connecting bolts; a plurality of column side steel plates are preset on columns corresponding to two sides of the shear wall along the height direction, a second connecting steel plate is preset on the corresponding column side steel plate of the shear wall, and bolt mounting holes are respectively preset on the columns on the inner sides of the column side steel plates and the shear walls on the inner sides of the second connecting steel plates; the connecting bolt penetrates through the corresponding column side steel plate and the connecting steel plate II from the bolt mounting hole on one side and then extends into the bolt mounting hole on the other side, and the connecting bolt is fastened through a nut;
and after the shear wall, the beam and the column are installed, all the bolt installation holes are leveled by concrete.
The floor slab is arranged in a space defined by a plurality of beams, and the floor slab is not connected with the columns and is only connected with the beams; the beams comprise beams on the shear wall side and beams on the partition wall side; the connection structure of the floor slab and the beam is as follows:
the floor slab is connected with a beam on the shear wall side through a beam top embedded bolt I; when the floor slab is connected with the beam on the side of the shear wall, the bottom of the upper-layer shear wall is provided with a first connecting steel plate, bolt mounting holes are preset in the upper-layer shear wall on the inner side of the first connecting steel plate, the corresponding end of the floor slab is crossarm on the corresponding beam, and a first beam top embedded bolt penetrates through the floor slab and the first connecting steel plate and then extends into the corresponding bolt mounting hole and is fastened through a nut;
the floor slab is connected with a beam on the side of the partition wall through a beam top embedded bolt II; when the floor slab is connected with the beam on the side of the partition wall, the floor slab is located on the corresponding beam, a bolt mounting groove is preset in the top of the floor slab, a plurality of beam top embedded bolts II are arranged in the top of the beam along the length direction, and the beam top embedded bolts II penetrate through the floor slab and then extend into the bolt mounting groove and are fastened through nuts; after the floor slab is installed, the bolt installation groove is filled and leveled by concrete.
The stairs are connected with the beam in the same way as the floor slab and the beam.
A construction method for bolt connection of a fully-precast concrete prefabricated house comprises the following steps:
1) manufacturing concrete prefabricated components including beams, columns, floor slabs, shear walls, partition walls and stairs according to a design drawing;
2) after the construction of the house foundation is finished and backfilled, the concrete prefabricated part is installed;
3) connecting the bottom column with the embedded bolt at the top of the foundation, then erecting a formwork and pouring concrete, and protecting the exposed bolt connection node at the top of the foundation;
4) installing a layer of beam;
6) installing a floor slab;
7) installing a layer of columns;
8) installing a layer of shear wall;
9) adjusting embedded steel bar hooks connected with embedded bolts at beam column joints, and then installing templates at the beam column connection joints, wherein the templates are fixedly connected through template split bolts; pouring fine stone concrete with the same label as the column into the beam mounting hole, and filling and leveling;
10) installing a second layer of beams, a first layer of stairs, a second layer of floor slabs, a second layer of columns and a second layer of shear walls according to the same method of the steps 5) to 9); repeating the operation until the house is capped;
12) installing partition walls, sequentially installing the partition walls from the bottom layer upwards, and performing lap joint construction with the structural frame;
13) and carrying out residential building engineering and water heating electrical engineering construction.
Hoisting and mounting the concrete prefabricated part by adopting an intelligent tower crane; the concrete prefabricated part is integrated with decorative and finishing parts, including doors, windows, shutters and heat-insulating plates.
Compared with the prior art, the invention has the beneficial effects that:
1) the concrete assembly type concrete grouting structure effectively solves the industrial problems that the grouting quality of the vertical steel bar sleeve is difficult to guarantee, the grouting connection cost of the sleeve is high, the installation is difficult, the construction efficiency is low, the integrity is poor and the like in the existing concrete assembly type building.
2) The problem of need cast-in-place layer above the superimposed sheet that current concrete assembly formula building exists, the roof beam needs cast-in-place, leads to the assembly rate low is effectively solved.
3) The problems of poor verticality and flatness and later plastering and leveling requirements of the existing concrete building are effectively solved.
4) The problem that the existing concrete assembly type building only realizes the assembly of a single component and cannot realize the assembly of the whole building including building project, decoration project and decoration project is effectively solved, and the integrated decoration is realized.
5) The member connecting joint is safe and reliable, convenient to construct, good in anti-seismic performance, low in labor intensity of workers and fast in construction progress.
6) The application range is wide, standardized production can be realized, and the construction cost is further reduced.
Drawings
FIG. 1 is a schematic plan view of a bolted fully precast concrete fabricated dwelling according to an embodiment of the present invention.
Fig. 2 is a detailed view of the node i in fig. 1.
Fig. 3 is a view a-a in fig. 2.
Fig. 4 is a view B-B in fig. 2.
Fig. 5 is a view C-C in fig. 1.
Fig. 6 is an enlarged view of a portion ii in fig. 5.
Fig. 7 is a view D-D in fig. 1.
Fig. 8 is a view E-E of fig. 1.
Fig. 9 is a schematic perspective view of the column of the present invention.
Fig. 10 is a schematic perspective view of the beam of the present invention.
Fig. 11 is a schematic perspective view of a floor slab according to the present invention.
In the figure: 1. beam 2, column 2-1, linear column 2-2, t-shaped column 2-3, corner column 2-4, deformed column 2-5, lower column 2-6, upper column 3, floor 4, shear wall 4-1, upper shear wall 5, partition wall 6, beam mounting hole 7, pre-embedded steel bar hook 8, column top pre-embedded bolt 9, beam end steel plate 10, nut 11, column bottom steel plate 12, steel bar sleeve 13, beam top pre-embedded bolt one 14, connecting steel plate one 15, connecting steel plate two 16, column side steel plate 17, connecting bolt 18, bolt mounting hole 19, beam top pre-embedded bolt two 20, bolt mounting groove 21, template 22, template counter-pulling bolt
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1, the bolt-connected fully precast concrete prefabricated house of the present invention comprises a beam 1, a column 2, a floor slab 3, a wall and a staircase, wherein the wall is divided into a shear wall 4 and a partition wall 5; the beam 1, the column 2, the floor slab 3, the wall and the stairs are all concrete prefabricated components, wherein the partition wall 5 is a lightweight concrete wall, and the concrete prefabricated components are connected by bolts; the column 2 is a stealth column.
The partition wall 5 adopts an ALC board.
The column 2 comprises a standard column and a special-shaped column, the standard column comprises a linear column 2-1, a T-shaped column 2-2 and a corner-shaped column 2-3, and the other columns except the standard column are special-shaped columns 2-4; the limb widths of the standard column and the special-shaped column are the same as the widths of the beams or walls correspondingly connected with the standard column and the special-shaped column.
As shown in fig. 2 to 4, the connection structure of the column 2 and the beam 1 is as follows:
notches are reserved on the bottom of the upper-layer column 2-6 and the top of the lower-layer column 2-5 respectively corresponding to the mounting side of the beam 1, and the upper-layer column 2-6 and the notch corresponding to the lower-layer column 2-5 form a beam mounting hole 6 together; two ends of the beam 1 are respectively positioned on the lower-layer columns 2-6 and are positioned in the notches on the corresponding sides; the end part of the beam is lower than the height of the beam body, notches are reserved on two sides of the end part of the beam 1 respectively, and a plurality of embedded steel bar hooks 7 extend into the notches from the inside of the beam 1 and are used for being connected with column top embedded bolts 8 of lower-layer columns 2-5; a beam end steel plate 9 is preset on the end surface of the beam 1, and the beam end steel plate 9 is tightly attached to the outer side of the column 2; a column bottom steel plate 11 is preset at the bottom of the upper-layer column 2-6, a plurality of column top embedded bolts 8 are arranged at the corresponding notches of the lower-layer column 2-5, and the column top embedded bolts 8 upwards penetrate through a plurality of embedded steel bar hooks 7 on two sides of the beam 1 and the column bottom steel plate 11 and are fastened through nuts 10; and after the columns 2, the beams 1 and the floor slabs 3 are installed, filling and leveling the beam installation holes 6 with concrete with the same mark number as the columns.
Template split bolt preformed holes are preset at two ends of the beam 1 for the template split bolts 22 to pass through; when the beam mounting hole 6 is filled and smoothed with concrete, formworks 21 are respectively mounted on two sides of the beam mounting hole 6, and the formworks 21 on the two sides are connected and fixed through formwork split bolts 22; a grouting hole and an exhaust hole are preset at the upper part of the template 21; the width of the beam end steel plate 9 is equal to the width of the beam 1 in the corresponding direction.
As shown in fig. 5, the shear wall 4 is arranged in the frame formed by the beam 1 and the column 2; as shown in fig. 6, the connection structure of the shear wall 4, the beam 1 and the column 2 is as follows:
the shear wall 4 is connected with the beam 1 through a plurality of beam top embedded bolts I13; the top of the beam 1 is longitudinally provided with a plurality of beam top embedded bolts I13, the shear wall 4 is provided with connecting steel plates I14 at the extending positions corresponding to the beam top embedded bolts I13 in a preset mode, the shear wall on the inner side of each connecting steel plate I14 is provided with bolt mounting holes 18 in a preset mode, and the beam top embedded bolts I13 sequentially penetrate through the floor slab 3 and the connecting steel plates I14 and then extend into the corresponding bolt mounting holes 18 and are fastened through nuts; before being connected with the shear wall 4, filling and compacting a gap between the floor slab 3 and the beam top;
the shear wall 4 is connected with the column 2 through a plurality of connecting bolts 17; a plurality of column side steel plates 16 are preset on the columns 2 corresponding to the two sides of the shear wall 4 along the height direction, a second connecting steel plate 15 is preset on the shear wall 4 corresponding to the column side steel plates 16, and bolt mounting holes 18 are respectively preset on the columns 2 on the inner sides of the column side steel plates 16 and the shear wall 4 on the inner sides of the second connecting steel plates 15; the connecting bolt 17 penetrates through the corresponding column side steel plate 16 and the connecting steel plate II 15 from the bolt mounting hole 18 on one side, then extends into the bolt mounting hole 18 on the other side, and is fastened through a nut;
after the installation between the shear wall 4 and the beam 1 and the column 2 is finished, all the bolt installation holes 18 are leveled by concrete.
As shown in fig. 1, the floor 3 is arranged in a space surrounded by a plurality of beams 1, and the floor 3 is not connected with the columns 2 but only connected with the beams 1; the beam 1 comprises a beam on the shear wall side and a beam on the partition wall side; the connecting structure of the floor slab 3 and the beam 1 is as follows:
as shown in fig. 7, the floor slab 3 is connected with the beam on the shear wall side through a beam top embedded bolt one 13; when the floor slab 3 is connected with a beam on the side of the shear wall, the bottom of the upper-layer shear wall 4-1 is provided with a first connecting steel plate 14, the upper-layer shear wall on the inner side of the first connecting steel plate 14 is provided with a bolt mounting hole 18, the corresponding end of the floor slab 3 is crossarm-mounted on the corresponding beam 1, and a beam top embedded bolt 13 penetrates through the floor slab 3 and the first connecting steel plate 14 and then extends into the corresponding bolt mounting hole 18 and is fastened through a nut;
as shown in fig. 8, the floor slab 3 is connected with the beam on the partition wall side through a second beam top embedded bolt 19; when the floor slab 3 is connected with a beam on the partition wall side, the floor slab 3 is located on the corresponding beam 1, a bolt installation groove 20 is preset in the top of the floor slab 3, a plurality of beam top embedded bolts II 19 are arranged in the top of the beam 1 along the length direction, and the beam top embedded bolts II 19 penetrate through the floor slab 3 and then extend into the bolt installation groove 20 and are fastened through nuts; after the floor slab 3 is installed, the bolt installation groove 20 is filled with concrete and leveled.
The stairs are connected with the beam in the same way as the floor slab and the beam.
A construction method for bolt connection of a fully-precast concrete prefabricated house comprises the following steps:
1) according to a design drawing, manufacturing concrete prefabricated parts including a beam 1 (shown in figure 9), a column 2 (shown in figure 10), a floor slab 3 (shown in figure 11), a shear wall 4, a partition wall 5 and a stair;
2) after the construction of the house foundation is finished and backfilled, the concrete prefabricated part is installed;
3) connecting the bottom column with the embedded bolt at the top of the foundation, then erecting a formwork and pouring concrete, and protecting the exposed bolt connection node at the top of the foundation;
4) installing a layer of beam;
6) installing a floor slab;
7) installing a layer of columns;
8) installing a layer of shear wall;
9) adjusting embedded steel bar hooks 7 connected with embedded bolts 8 at beam column joints, then installing templates 21 at the beam column connection joints, and connecting and fixing the templates 21 through template split bolts 22; the beam mounting holes 6 are poured with fine stone concrete with the same label as the column 2 for filling and leveling;
10) installing a second layer of beams, a first layer of stairs, a second layer of floor slabs, a second layer of columns and a second layer of shear walls according to the same method of the steps 5) to 9); repeating the operation until the house is capped;
12) installing partition walls 5, sequentially installing from the bottom layer to the top layer, and overlapping the partition walls with the structural frame;
13) and carrying out residential building engineering and water heating electrical engineering construction.
Hoisting and mounting the concrete prefabricated part by adopting an intelligent tower crane; the concrete prefabricated part is integrated with decorative and finishing parts, including doors, windows, shutters and heat-insulating plates.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples.
[ examples ] A method for producing a compound
In this embodiment, a plan view of a bolted full precast concrete fabricated dwelling is shown in FIG. 1.
The fully-assembled structure is adopted, the beam, the floor slab, the column, the wall and the stair are all concrete prefabricated components, and all the components are connected by bolts.
Bolted connection node mainly includes: beam-column connection nodes, beam-floor connection nodes, wall-to-beam, plate, column connection nodes, stair-to-beam connection nodes.
Each precast concrete component carries out decoration and fitment integration processing at component manufacture factory, than install window, heated board on the partition wall, or reserve the mounting hole etc. of door, window, tripe etc. then transport to the job site and install.
The wall is divided into a shear wall and a partition wall, and the shear wall is a bearing wall. The partition wall can adopt ALC plates (autoclaved lightweight aggregate concrete precast slabs) which are connected with the beams through conventional bolts. In order to facilitate the installation of the partition wall, a preformed hole or an embedded part is arranged on the floor slab and the beam at the installation position of the partition wall.
In this embodiment, the plane of the house is divided into 4 areas by walls, and floors are respectively laid in the 4 areas; the column comprises a straight column, a T-shaped column, a corner column and a special-shaped column. The column is designed into an invisible column, the straight column, the T-shaped column and the corner column are all standard columns, and the limb width of the column is the same as the wall width. Except three standard columns, the special-shaped column is designed according to a specific structure, and the limb width of the special-shaped column is the same as the wall width. The middle area of the standard column is not provided with a bolt, and the stress state of the area is compression; the two side areas of the straight column and the wall limb areas of the T-shaped column and the corner column are connecting areas, embedded bolts are respectively arranged, and the stress states of the areas are under compression and also under tension; the pressed area and the connecting area of the special-shaped column are designed according to specific conditions.
The beam end is embedded with a steel plate, notches are preset on two sides of the end of the beam and used for allowing embedded bolts to pass through, and embedded steel bar hooks are thrown out of two sides of each notch and used for reinforcing the strength of the beam end nodes.
The bottom and the side of the wall are respectively preset with steel plates for connecting the beam at the bottom and the columns at two ends. The embedded bolts in the beams penetrate through the floor slab to be connected with the wall, the side face of the wall is connected with the columns through the connecting bolts, and bolt mounting holes are formed in the wall and the columns respectively for convenient operation. And corresponding to the side of the partition wall, the beam top is provided with a bolt mounting groove for connecting with a floor slab.
The distance between all the embedded bolts is 400-600 mm, and the embedded bolts are determined according to structural calculation. The embedded bolts at the connection nodes of the later-stage concrete pouring are required to be contracted in the corresponding holes so as to prevent the concrete from being exposed. All the joints of the embedded bolts are subjected to anticorrosive and antirust treatment and then are filled with fine stone concrete with the same grade. The beam is provided with a bolt sleeve 12 in a preformed hole of a split bolt of the template.
The bottom of the house is connected with the foundation through the bottom column, the steel plate arranged at the bottom of the bottom column is widened out of the column and is connected with the foundation embedded bolt outside the column, and then the formwork grouting is carried out to protect the foundation embedded bolt.
In the installation process of the concrete prefabricated part, an intelligent construction technology is adopted, safety limit control is carried out on an intelligent tower crane (various sensors are installed on the tower crane), and the sensors are installed on the part and used for monitoring the internal force of a structural system and the like.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A bolt connection full precast concrete prefabricated house is characterized by comprising beams, columns, floor slabs, walls and stairs, wherein the walls are shear walls and partition walls; the beam, the column, the floor slab, the wall and the stair are all concrete prefabricated components, wherein the partition wall is a lightweight concrete wall, and the concrete prefabricated components are connected through bolts; the pillars are invisible pillars.
2. The bolted full precast concrete prefabricated house of claim 1, wherein said partition wall is ALC slab.
3. The bolted full precast concrete prefabricated house of claim 1, wherein said columns comprise standard columns and special-shaped columns, the standard columns comprise straight columns, T-shaped columns and corner-shaped columns, and the columns except the standard columns are special-shaped columns; the limb widths of the standard column and the special-shaped column are the same as the widths of the beams or walls correspondingly connected with the standard column and the special-shaped column.
4. The bolted full precast concrete fabricated dwelling of claim 1, wherein the column to beam connection structure is:
notches are reserved on the bottom of the upper-layer column and the top of the lower-layer column respectively corresponding to the mounting sides of the beam, and the upper-layer column and the lower-layer column form a beam mounting hole together; two ends of the beam are respectively located on the lower-layer column and are positioned in the notches on the corresponding sides; the end part of the beam is lower than the height of the beam body, notches are reserved on two sides of the end part of the beam respectively, and a plurality of embedded steel bar hooks extend into the notches from the inside of the beam and are used for being connected with column top embedded bolts of the lower-layer column; a beam end steel plate is preset on the end surface of the beam and is tightly attached to the outer side of the column; a column bottom steel plate is preset at the bottom of the upper-layer column, a plurality of column top embedded bolts are arranged at the corresponding notches of the lower-layer column, and the column top embedded bolts penetrate through a plurality of embedded steel bar hooks on two sides of the beam and the column bottom steel plate upwards and are fastened through nuts; after the column, the beam and the floor slab are installed, the beam installation hole is filled and leveled by concrete with the same mark number as the column.
5. The bolted full precast concrete prefabricated house of claim 4, wherein the two ends of said beam are provided with template split bolt prepared holes for the passing of template split bolts; when the beam mounting hole is filled and smoothed with concrete, templates are respectively mounted on two sides of the beam mounting hole, and the templates on the two sides are fixedly connected through template split bolts; the upper part of the template is preset with a grouting hole and an exhaust hole; the width of the beam end steel plate is equal to the width of the beam in the corresponding direction.
6. The bolted full precast concrete fabricated dwelling of claim 1, wherein said shear walls are disposed within a frame formed by beams and columns; the connection structure of the shear wall, the beam and the column is as follows:
the shear wall is connected with the beam through a plurality of beam top embedded bolts I; the top of the beam is longitudinally provided with a plurality of beam top embedded bolts I, the shear wall is provided with a first connecting steel plate at the extending part corresponding to the first beam top embedded bolts I in a preset mode, the shear wall on the inner side of the first connecting steel plate is provided with bolt mounting holes in a preset mode, and the first beam top embedded bolts sequentially penetrate through the floor and the first connecting steel plate and then extend into the corresponding bolt mounting holes and are fastened through nuts; before being connected with the shear wall, filling and compacting a gap between the floor slab and the beam top;
the shear wall is connected with the column through a plurality of connecting bolts; a plurality of column side steel plates are preset on columns corresponding to two sides of the shear wall along the height direction, a second connecting steel plate is preset on the corresponding column side steel plate of the shear wall, and bolt mounting holes are respectively preset on the columns on the inner sides of the column side steel plates and the shear walls on the inner sides of the second connecting steel plates; the connecting bolt penetrates through the corresponding column side steel plate and the connecting steel plate II from the bolt mounting hole on one side and then extends into the bolt mounting hole on the other side, and the connecting bolt is fastened through a nut;
and after the shear wall, the beam and the column are installed, all the bolt installation holes are leveled by concrete.
7. The bolted full precast concrete prefabricated house of claim 1, wherein said floor slab is provided in a space defined by a plurality of beams, the floor slab being not connected to the columns but only to the beams; the beams comprise beams on the shear wall side and beams on the partition wall side; the connection structure of the floor slab and the beam is as follows:
the floor slab is connected with a beam on the shear wall side through a beam top embedded bolt I; when the floor slab is connected with the beam on the side of the shear wall, the bottom of the upper-layer shear wall is provided with a first connecting steel plate, bolt mounting holes are preset in the upper-layer shear wall on the inner side of the first connecting steel plate, the corresponding end of the floor slab is crossarm on the corresponding beam, and a first beam top embedded bolt penetrates through the floor slab and the first connecting steel plate and then extends into the corresponding bolt mounting hole and is fastened through a nut;
the floor slab is connected with a beam on the side of the partition wall through a beam top embedded bolt II; when the floor slab is connected with the beam on the side of the partition wall, the floor slab is located on the corresponding beam, a bolt mounting groove is preset in the top of the floor slab, a plurality of beam top embedded bolts II are arranged in the top of the beam along the length direction, and the beam top embedded bolts II penetrate through the floor slab and then extend into the bolt mounting groove and are fastened through nuts; after the floor slab is installed, the bolt installation groove is filled and leveled by concrete.
8. A bolted full precast concrete fabricated dwelling of claim 1, wherein said stairways are connected to the beams in the same manner as the floor slab to beam connection.
9. The construction method of the bolt-connected fully precast concrete prefabricated house according to any one of claims 1 to 8, comprising the steps of:
1) manufacturing concrete prefabricated components including beams, columns, floor slabs, shear walls, partition walls and stairs according to a design drawing;
2) after the construction of the house foundation is finished and backfilled, the concrete prefabricated part is installed;
3) connecting the bottom column with the embedded bolt at the top of the foundation, then erecting a formwork and pouring concrete, and protecting the exposed bolt connection node at the top of the foundation;
4) installing a layer of beam;
6) installing a floor slab;
7) installing a layer of columns;
8) installing a layer of shear wall;
9) adjusting embedded steel bar hooks connected with embedded bolts at beam column joints, and then installing templates at the beam column connection joints, wherein the templates are fixedly connected through template split bolts; pouring fine stone concrete with the same label as the column into the beam mounting hole, and filling and leveling;
10) installing a second layer of beams, a first layer of stairs, a second layer of floor slabs, a second layer of columns and a second layer of shear walls according to the same method of the steps 5) to 9); repeating the operation until the house is capped;
12) installing partition walls, sequentially installing the partition walls from the bottom layer upwards, and performing lap joint construction with the structural frame;
13) and carrying out residential building engineering and water heating electrical engineering construction.
10. The construction method of the bolt-connected fully precast concrete prefabricated house according to claim 9, wherein the concrete prefabricated parts are hoisted and installed by an intelligent tower crane; the concrete prefabricated part is integrated with decorative and finishing parts, including doors, windows, shutters and heat-insulating plates.
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