CN110593402A - Prefabricated column bottom angle steel seat slurry combination device and construction method - Google Patents
Prefabricated column bottom angle steel seat slurry combination device and construction method Download PDFInfo
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- CN110593402A CN110593402A CN201910973973.6A CN201910973973A CN110593402A CN 110593402 A CN110593402 A CN 110593402A CN 201910973973 A CN201910973973 A CN 201910973973A CN 110593402 A CN110593402 A CN 110593402A
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- column
- prefabricated
- angle steel
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- cast
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a prefabricated column bottom angle steel seat slurry combination device which comprises a prefabricated frame beam, wherein a composite floor slab is arranged on the top of the prefabricated frame beam, penetrating lower column cavities are arranged in the prefabricated frame beam and the composite floor slab, a composite floor slab cast-in-place layer is arranged on the composite floor slab, a lower column is formed in the lower column cavity by the composite floor slab cast-in-place layer, a prefabricated column is butted at the top of the projection surface of the lower column on the composite floor slab cast-in-place layer, a plurality of plate seam control gaskets are arranged between the composite floor slab cast-in-place layer and the bottom surface of the prefabricated column in a cushioning mode, angle steel assemblies attached to the prefabricated column bottom surface are arranged on the periphery of. The device makes the prefabricated column bottom form a complete cavity by carrying out the outer column base grout at the prefabricated column bottom, improves the grouting quality, avoids the base grout to block or partially block the grouting sleeve, and improves the one-time grouting success rate of the prefabricated column.
Description
Technical Field
The invention relates to a prefabricated column bottom angle steel seat slurry combination device, and belongs to the technical field of assembly type building construction.
Background
The fabricated building is a building formed by assembling prefabricated parts on a construction site, and the fabricated building is mainly fabricated on the site, so that the original cast-in-place operation is greatly reduced, the production efficiency is improved, and the cost is saved. However, as the assembly type building industry is just implemented at present, a plurality of construction processes are in the development stage, and management departments do not complete corresponding construction specifications yet. The construction stress form is not changed, the quality control of the vertical member still influences the engineering quality, the most important node in the prefabricated column construction is column bottom grouting, the plumpness of grouting material is one of the most important factors for determining the engineering quality, and the grouting process is the foundation of grouting success, so the grouting process is very important.
The conventional prefabricated column base slurry of the fabricated building adopts a direct base slurry plugging mode, and the construction mode is that a hose is plugged at the bottom of a column, and then the hose is drawn out after the base slurry is smeared to finish the base slurry. This mode is more practical when the center pillar construction, can increase column base chisel hair area to increase column base thick liquids thickness, nevertheless the side pillar, the corner post will lead to column base thick liquids to be too thin with hose mode construction, so extremely easily appear exploding thick liquid, leaking the thick liquid phenomenon in the grout in-process, and when not using the hose, the seat thick liquids get into column base grout sleeve easily, lead to grout sleeve to block up, and then appear partly grout outlet not go out the thick liquid, or go out the inhomogeneous condition of thick liquid, can't guarantee vertical component quality.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a prefabricated column bottom angle steel base slurry combination device, which enables the prefabricated column bottom to form a complete cavity by performing column outer base slurry on the prefabricated column bottom, improves the grouting quality, avoids base slurry from blocking or partially blocking a grouting sleeve, and improves the one-time grouting success rate of the prefabricated column.
In order to achieve the purpose, the angle steel base slurry combination device comprises a prefabricated frame beam, wherein a composite floor slab is arranged on the top of the prefabricated frame beam, a penetrating lower column cavity is formed in the prefabricated frame beam and the composite floor slab, a composite floor slab cast-in-place layer is arranged on the composite floor slab, a lower column is formed in the lower column cavity by the composite floor slab cast-in-place layer, a prefabricated column is in butt joint with the top of the projection surface of the lower column on the composite floor slab cast-in-place layer, a plurality of plate seam control gaskets are arranged between the composite floor slab cast-in-place layer and the bottom surface of the prefabricated column in a cushioning mode, angle steel assemblies attached to the bottom surface of the prefabricated column are arranged on the periphery of the.
Further, the angle steel subassembly includes the angle steel strip that two shapes are the same, and the cross section of angle steel strip is the L type, and the base of angle steel strip extends to the outside of angle steel strip, and the top of the side of angle steel strip is equipped with the top oblique angle to the slope of angle steel strip outside, and the outside on angle steel strip base is equipped with the side oblique angle.
Furthermore, one end of each of the two angle steel bars is provided with a connecting plate vertically arranged between the side edge and the bottom edge of the angle steel bar, and the connecting plate is connected with the side edge of the other angle steel bar far away from one end of the connecting plate through a bolt assembly.
Furthermore, a base slurry layer is arranged between the bottom edge of the angle steel bar and the laminated floor cast-in-place layer, a double-faced adhesive tape layer is arranged between the side edge of the angle steel bar and the outer wall of the prefabricated column, the height of the double-faced adhesive tape layer is smaller than that of the side edge of the angle steel bar, and a side seat slurry layer positioned above the double-faced adhesive tape layer is also arranged between the side edge of the angle steel bar and the outer wall of the prefabricated column.
Furthermore, lower column steel bars penetrate through the lower columns, penetrate through the cast-in-place layer of the laminated floor slab and are exposed outside, prefabricated column steel bars penetrate through the prefabricated columns, grouting sleeves are sleeved on the prefabricated column steel bars, and the lower column steel bars penetrate through the grouting sleeves.
Furthermore, a plurality of grouting holes are formed in the side wall of the grouting sleeve.
The invention also provides a construction method of the prefabricated column bottom angle steel base slurry combination device, which comprises the following steps:
s1: designing a BIM model of the angle steel assembly at the bottom of the prefabricated column, numbering and marking the prefabricated column at each part of a construction site, numbering and marking the same number as a deepening drawing on the surface of the prefabricated column after the prefabricated column is produced according to the number, and designing the angle steel assembly required to be used in advance according to the condition of the construction site;
s2: manufacturing an angle steel bar according to the design result in the step S1;
s3: roughening the joint surface of the prefabricated column bottom and the cast-in-place layer of the composite floor slab;
s4: installing a plate seam control gasket on a laminated floor cast-in-place layer at the bottom of the precast column, and measuring the flatness of the plate seam control gasket;
s5: pre-burying special hanging nails in the prefabricated columns, and hoisting the prefabricated columns in a mode of full coverage of a tower crane;
s6: building a base slurry layer on a laminated floor cast-in-place layer around the bottom of the prefabricated column, adhering a double-faced adhesive tape layer on the inner side surface of an angle steel bar, placing the angle steel bar at the bottom of the prefabricated column to press the base slurry, assembling the angle steel bar into an angle steel assembly by using a bolt assembly, enabling the angle steel assembly to be tightly attached to the outer wall of each surface of the bottom of the prefabricated column, building a top seat slurry layer at the top of the double-faced adhesive tape layer, and completing seat slurry caulking.
Further, in step S3, the roughness of the roughened surface of the cast-in-place layer of the precast column and the composite floor slab is greater than or equal to 6mm, and the roughness of the exposed aggregate is uniformly and continuously arranged along the entire joint surface.
Further, in step S4, 3 plate gap control shims having a thickness of 20mm, 10mm, 5mm, 3mm or 1mm are placed per prefabricated column bottom, and the thickness of the plate gap control shims is determined from the measurement results.
Further, in step S5, the verticality and horizontal deviation of the precast column are mainly adjusted by the diagonal bracing, and the deviation between the precast column and the control line and the column verticality are adjusted by the diagonal bracing after the precast column is installed in place along the control line.
According to the angle steel base slurry combination device for the prefabricated column bottom, disclosed by the invention, the column outer base slurry is carried out on the prefabricated column bottom, so that a complete cavity is formed at the prefabricated column bottom, the grouting quality is improved, the base slurry is prevented from blocking or partially blocking a grouting sleeve, and the one-time grouting success rate of the prefabricated column is improved.
Drawings
The present invention will be further described and illustrated with reference to the following drawings.
FIG. 1 is a cross-sectional view of a prefabricated column bottom angle steel and mortar combination unit in accordance with a preferred embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a top view of the angle assembly.
Reference numerals: 1. prefabricating a frame beam; 2. overlapping the floor slabs; 3. a cast-in-place layer of the composite floor slab; 4. column descending; 41. lower column steel bars; 5. prefabricating a column; 51. prefabricating column reinforcing steel bars; 52. grouting a sleeve; 53. grouting holes; 6. a board seam control gasket; 7. an angle steel component; 71. an angle steel bar; 72. a connecting plate; 73. a base slurry layer; 74. a double-sided adhesive tape layer; 75. a side seat slurry layer.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the prefabricated column bottom angle steel base slurry combination device according to the preferred embodiment of the invention comprises a prefabricated frame beam 1, a composite floor slab 2 is arranged at the top of the prefabricated frame beam 1, penetrating lower column 4 cavities are arranged in the prefabricated frame beam 1 and the composite floor slab 2, a composite floor slab cast-in-place layer 3 is poured on the composite floor slab 2, a lower column 4 is formed in the lower column cavity downwards by the composite floor slab cast-in-place layer 3, a prefabricated column 5 is butted at the top of the projection surface of the lower column 4 on the composite floor slab cast-in-place layer 3, 3 plate seam control gaskets 6 are arranged between the composite floor slab cast-in-place layer 3 and the bottom surface of the prefabricated column 5 in a padding mode, angle steel assemblies 7 attached to the periphery of the bottom surface of the prefabricated column 5 are arranged, and the angle.
The angle steel assembly 7 comprises two angle steel bars 71 with the same shape, the cross section of each angle steel bar 71 is L-shaped, the bottom edge of each angle steel bar 71 extends towards the outer side of each angle steel bar 71, one end of each angle steel bar 71 is provided with a connecting plate 72 vertically arranged between the side edge and the bottom edge of each angle steel bar 71, and the connecting plate 72 is connected with the side edge of one end, far away from the connecting plate 72, of the other angle steel bar 71 through a bolt assembly.
The top of the side edge of the angle steel bar 71 is provided with a top bevel angle inclining towards the outer side of the angle steel bar 71, and the outer side of the bottom edge of the angle steel bar 71 is provided with a side bevel angle. A base slurry layer 73 is arranged between the bottom edge of the angle steel bar 71 and the laminated floor cast-in-place layer 3, a double-faced adhesive tape layer 74 is arranged between the side edge of the angle steel bar 71 and the outer wall of the prefabricated column 5, the height of the double-faced adhesive tape layer 74 is smaller than that of the side edge of the angle steel bar 71, and a side base slurry layer 75 positioned above the double-faced adhesive tape layer 74 is also arranged between the side edge of the angle steel bar 71 and the outer wall of the prefabricated column 5. The column outer base slurry is realized through the angle steel bars 71, a complete cavity is formed at the bottom of the prefabricated column 5, the grouting quality is improved, and slurry explosion and slurry leakage are prevented. In addition, the angle steel bar 71 that sets up like this is convenient for demolish it after the seat thick liquid is accomplished to because the structural feature of angle steel can better keep original shape after taking out, be favorable to circulating the use.
Lower post reinforcing bar 41 passes through to be equipped with in the lower post 4, and lower post reinforcing bar 41 passes the cast-in-place layer 3 of coincide floor and exposes outside, wears to be equipped with prefabricated post reinforcing bar 51 in the prefabricated post 5, and the cover is equipped with grout sleeve 52 on the prefabricated post reinforcing bar 51, and lower post reinforcing bar 41 wears to establish in grout sleeve 52 and contacts with prefabricated post reinforcing bar 51. The side wall of the grouting sleeve 52 is provided with a plurality of grouting holes 53, after grouting is completed, the bottom of the prefabricated column 5 forms a complete cavity, and grouting is performed through the grouting holes 53, so that blockage of the grouting sleeve 52 can be effectively avoided.
The invention also provides a construction method of the prefabricated column bottom angle steel base slurry combination device, which comprises the following steps:
s1: designing a BIM model of a bottom angle steel assembly 7 of a prefabricated column 5, numbering and marking the prefabricated column 5 of each part of a construction site, numbering the surface of the prefabricated column 5 produced according to the numbering and the same as a deepening drawing, and designing the angle steel assembly 7 required to be used in advance according to the condition of the construction site;
s2: manufacturing the angle steel bar 71 according to the design result in step S1;
s3: roughening the joint surface of the bottom of the precast column 5 and the composite floor cast-in-place layer 3, wherein the roughened part of the joint surface of the precast column 5 and the composite floor cast-in-place layer 3 is greater than or equal to 6mm, the exposed aggregate is uniformly and continuously arranged along the whole joint surface, and roughened impurities need to be cleaned;
s4: installing plate gap control gaskets 6 on the laminated floor cast-in-place layer 3 at the bottom of each prefabricated column 5, measuring the flatness of the plate gap control gaskets 6, placing 3 plate gap control gaskets 6 at the bottom of each prefabricated column 5, wherein the thickness of each plate gap control gasket 6 is 20mm, 10mm, 5mm, 3mm or 1mm, and the thickness of each plate gap control gasket 6 is determined according to the measurement result
S5: the special hanging nails are pre-buried in the prefabricated columns 5, the prefabricated columns 5 are hoisted in a mode of full coverage of a tower crane, and hoisting points adopt a mode of pre-burying special hanging nails in prefabricated parts. The diameter of the steel wire rope is 22 (4M multiplied by 22), the lifting lugs are matched M20 bolts, and a universal lifting appliance is configured. The verticality and horizontal deviation of the prefabricated column 5 are mainly adjusted by an inclined strut, and the deviation and column verticality between the prefabricated column 5 and a control line are adjusted by the inclined strut after the prefabricated column 5 is installed in place along the control line;
s6: building a base slurry layer 73 on the laminated floor cast-in-place layer 3 around the bottom of the prefabricated column 5, adhering a double-faced adhesive tape layer 74 to the inner side surface of the angle steel bar 71, placing the angle steel bar 71 at the bottom of the prefabricated column 5 to press the base slurry, assembling the angle steel bar 71 into an angle steel assembly 7 by using a bolt assembly, enabling the angle steel assembly 7 to be tightly attached to the outer wall of each surface of the bottom of the prefabricated column 5, building a top base slurry layer at the top of the double-faced adhesive tape layer 74, and completing the base slurry caulking.
According to the angle steel base slurry combination device for the prefabricated column bottom, disclosed by the invention, the column outer base slurry is carried out on the prefabricated column bottom, so that a complete cavity is formed at the prefabricated column bottom, the grouting quality is improved, the base slurry is prevented from blocking or partially blocking a grouting sleeve, and the one-time grouting success rate of the prefabricated column is improved.
The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the invention. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. The scope of the invention is defined by the claims.
Claims (10)
1. The utility model provides a prefabricated pillar bottom angle steel seat thick liquid composite set, includes prefabricated frame roof beam, states the top of prefabricated frame roof beam and is equipped with the coincide floor, be equipped with penetrating lower column cavity in prefabricated frame roof beam and the coincide floor, be equipped with the cast-in-place layer of coincide floor on the coincide floor, the cast-in-place layer of coincide floor forms the lower prop in the lower prop intracavity, it has prefabricated post to lie in lower prop projection surface top butt joint on the cast-in-place layer of coincide floor, its characterized in that, the pad is equipped with a plurality of board seam control gaskets between cast-in-place layer of coincide floor and prefabricated post bottom surface, prefabricated post bottom surface is equipped with the angle steel subassembly rather than the laminating all around, the angle steel subassembly simultaneously with the cast-.
2. The assembly of claim 1, wherein the angle assembly comprises two angle bars having the same shape, the cross section of the angle bar is L-shaped, the bottom side of the angle bar extends to the outside of the angle bar, the top of the side edge of the angle bar is provided with a top bevel angle inclined to the outside of the angle bar, and the outside of the bottom side of the angle bar is provided with a side bevel angle.
3. A prefabricated column bottom angle steel setting slurry combination device according to claim 2, wherein one end of two of said angle steel bars is provided with a connecting plate vertically arranged between the side edge and the bottom edge thereof, and said connecting plate is connected with the side edge of the other angle steel bar far from the end of the connecting plate through a bolt assembly.
4. The assembly of claim 2, wherein a base slurry layer is disposed between the bottom edge of the angle steel bar and the cast-in-place layer of the laminated floor slab, a double-sided tape layer is disposed between the side edge of the angle steel bar and the outer wall of the prefabricated column, the height of the double-sided tape layer is less than that of the side edge of the angle steel bar, and a side base slurry layer is disposed between the side edge of the angle steel bar and the outer wall of the prefabricated column above the double-sided tape layer.
5. The prefabricated column bottom angle steel base mortar combined device according to claim 1, wherein a lower column steel bar penetrates through the lower column, the lower column steel bar penetrates through a cast-in-place layer of the laminated floor slab and is exposed outside, a prefabricated column steel bar penetrates through the prefabricated column, a grouting sleeve is sleeved on the prefabricated column steel bar, and the lower column steel bar penetrates through the grouting sleeve.
6. The precast column base angle steel and mortar combination device of claim 5, wherein the side wall of the grouting sleeve is provided with a plurality of grouting holes.
7. A construction method of the prefabricated column bottom angle steel seat slurry combination device according to any one of claims 1-6, characterized by comprising the following steps:
s1: designing a BIM model of the angle steel assembly at the bottom of the prefabricated column, numbering and marking the prefabricated column at each part of a construction site, numbering and marking the same number as a deepening drawing on the surface of the prefabricated column after the prefabricated column is produced according to the number, and designing the angle steel assembly required to be used in advance according to the condition of the construction site;
s2: manufacturing an angle steel bar according to the design result in the step S1;
s3: roughening the joint surface of the prefabricated column bottom and the cast-in-place layer of the composite floor slab;
s4: installing a plate seam control gasket on a laminated floor cast-in-place layer at the bottom of the precast column, and measuring the flatness of the plate seam control gasket;
s5: pre-burying special hanging nails in the prefabricated columns, and hoisting the prefabricated columns in a mode of full coverage of a tower crane;
s6: building a base slurry layer on a laminated floor cast-in-place layer around the bottom of the prefabricated column, adhering a double-faced adhesive tape layer on the inner side surface of an angle steel bar, placing the angle steel bar at the bottom of the prefabricated column to press the base slurry, assembling the angle steel bar into an angle steel assembly by using a bolt assembly, enabling the angle steel assembly to be tightly attached to the outer wall of each surface of the bottom of the prefabricated column, building a top seat slurry layer at the top of the double-faced adhesive tape layer, and completing seat slurry caulking.
8. The precast column base angle steel setting mortar combined device according to claim 7, wherein in step S3, the roughening treatment of the joint surface of the precast column and the cast-in-place layer of the laminated floor slab has a roughness of 6mm or more, and the roughness of the exposed aggregate is uniformly and continuously arranged along the whole joint surface.
9. The combination of prefabricated column bottom angle steel seat slurry of claim 7, wherein in step S4, each prefabricated column bottom is placed with 3 plate gap control shims, the thickness of each plate gap control shim is 20mm, 10mm, 5mm, 3mm or 1mm, and the thickness of each plate gap control shim is determined by the measurement result.
10. The precast column base angle steel setting mortar combined device of claim 7, wherein in step S5, the verticality and horizontal deviation of the precast column are mainly adjusted by the diagonal bracing, and the deviation between the precast column and the control line and the column verticality are adjusted by the diagonal bracing after the precast column is installed in place along the control line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910973973.6A CN110593402A (en) | 2019-10-14 | 2019-10-14 | Prefabricated column bottom angle steel seat slurry combination device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910973973.6A CN110593402A (en) | 2019-10-14 | 2019-10-14 | Prefabricated column bottom angle steel seat slurry combination device and construction method |
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| CN110593402A true CN110593402A (en) | 2019-12-20 |
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| CN201910973973.6A Pending CN110593402A (en) | 2019-10-14 | 2019-10-14 | Prefabricated column bottom angle steel seat slurry combination device and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114382172A (en) * | 2021-12-27 | 2022-04-22 | 三能集成房屋股份有限公司 | Fully-assembled building and building method thereof |
| CN115012663A (en) * | 2022-06-29 | 2022-09-06 | 中冶天工集团有限公司 | Grouting plugging piece and plugging device for prefabricated column root and construction method of grouting plugging piece and plugging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114382172A (en) * | 2021-12-27 | 2022-04-22 | 三能集成房屋股份有限公司 | Fully-assembled building and building method thereof |
| CN115012663A (en) * | 2022-06-29 | 2022-09-06 | 中冶天工集团有限公司 | Grouting plugging piece and plugging device for prefabricated column root and construction method of grouting plugging piece and plugging device |
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