CN111734029B - Processing method of precast slab notch structure of precast integral-cast floor system at convex corner column position - Google Patents
Processing method of precast slab notch structure of precast integral-cast floor system at convex corner column position Download PDFInfo
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- CN111734029B CN111734029B CN202010578937.2A CN202010578937A CN111734029B CN 111734029 B CN111734029 B CN 111734029B CN 202010578937 A CN202010578937 A CN 202010578937A CN 111734029 B CN111734029 B CN 111734029B
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- steel bars
- bottom plate
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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
- E04B5/17—Floor structures partly formed in situ
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
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- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a processing method of a prefabricated slab gap structure of a prefabricated integral cast floor at a convex angle column position, wherein the prefabricated slab gap structure comprises a prefabricated bottom plate, a column, connecting reinforcing steel bars and constructional reinforcing steel bars; a gap is reserved at the position, corresponding to the column, of the prefabricated bottom plate, which protrudes outwards; bottom plate steel bars are embedded in the bottom of the prefabricated bottom plate; the connecting steel bars are placed on the top surface of the prefabricated bottom plate; the constructional steel bars are placed at the end parts of the connecting steel bars and are positioned above the prefabricated bottom plate; the processing method comprises the following steps: 1) adding square wood on the outer side of the column to serve as a bottom die to plug the bottom of the gap; 2) connecting steel bars are laid on the prefabricated bottom plate and extend into the columns, so that the prefabricated bottom plate can be conveniently combined with the columns; 3) placing construction steel bars on the connecting steel bars; 4) and concrete is cast in the notch and on the prefabricated bottom plate in situ to block the notch and form a cast-in-situ laminated layer on the prefabricated bottom plate. The invention can effectively solve the problem that the sizes of the corresponding notches of the prefabricated bottom plates at the intersection positions are different due to different convex sizes of the pillars.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a building construction method, in particular to a method for processing a gap structure of a prefabricated plate of a prefabricated integrally-cast floor at a convex angle column position, and belongs to the technical field of building engineering.
[ background of the invention ]
At present, the assembled building is greatly promoted in China, a large number of structural components are manufactured in a prefabrication mode, wherein the floor of the assembled building generally adopts a prefabricated bottom plate, and a cast-in-place layer is poured on the prefabricated bottom plate, so that the prefabricated integral cast floor is formed. The prefabricated bottom plate has two kinds of ways, one kind is prefabricated two-way bottom plate, and four sides of bottom plate all outwards stretch out the bottom reinforcing bar promptly, and another kind is prefabricated one-way bottom plate, only at the overhanging reinforcing bar of bottom plate atress side, two non-atress sides do not have overhanging reinforcing bar in addition.
In many buildings where posts are provided, the posts are of a large size, resulting in the outer edges of the posts projecting beyond the beam or wall, and resulting in the prefabricated floor panels of many floors in the region of the pedestals requiring a recess in the corner to accommodate the protrusion of the post. But the post size of same floor has big or small, and the same post of different floors also can lead to the design size difference because of the atress is different, and the change of post size can lead to the reservation breach of prefabricated bottom plate not of uniform size from this. Therefore, under conventional conditions, when the prefabricated bottom plate split design, the designer need accurately know the evagination size of each post to corresponding design bottom plate breach, and the prefabrication factory also need to pay attention to the breach size when prefabricated, avoids doing the mistake, so can lead to design and production efficiency lower, and make mistakes easily.
Therefore, in order to solve the above technical problems, it is necessary to provide an innovative processing method for a gap structure of a precast slab integrally cast floor at a convex corner post, so as to overcome the above-mentioned drawbacks in the prior art.
[ summary of the invention ]
In order to solve the problems, the invention aims to provide a method for processing a gap structure of a prefabricated plate of a prefabricated cast-in-place floor at a convex angle column, which can effectively solve the problem that the sizes of gaps corresponding to prefabricated bottom plates at intersecting positions are different due to different convex sizes of the columns.
In order to achieve the purpose, the invention adopts the technical scheme that: a processing method for a prefabricated slab gap structure of a prefabricated integrally cast floor at a convex corner column position is disclosed, wherein the prefabricated slab gap structure comprises a prefabricated bottom plate, columns, connecting reinforcing steel bars and constructional reinforcing steel bars; gaps are reserved at the positions, corresponding to the outward bulges of the pillars, of the prefabricated bottom plates; bottom plate steel bars are embedded in the bottoms of the prefabricated bottom plates; the connecting steel bars are placed on the top surface of the prefabricated bottom plate; the constructional steel bars are placed at the end parts of the connecting steel bars and are positioned above the prefabricated bottom plate; the method comprises the following process steps:
1) adding square wood on the outer side of the column to serve as a bottom die to plug the bottom of the gap;
2) connecting steel bars are laid on the prefabricated bottom plate and extend into the columns, so that the prefabricated bottom plate can be conveniently combined with the columns;
3) placing construction steel bars on the connecting steel bars;
4) and concrete is cast in the notch and on the prefabricated bottom plate in situ to block the notch and form a cast-in-situ laminated layer on the prefabricated bottom plate.
The processing method of the precast slab gap structure of the precast integral cast floor slab at the convex angle column position further comprises the following steps: the size of the notch of the prefabricated bottom plate is designed according to the convex size of different columns of a building, and the prefabricated bottom plate with one specification is determined by increasing the width of the notch by 50mm from the minimum convex size so as to obtain prefabricated bottom plates with several notch specifications.
The processing method of the precast slab gap structure of the precast integral cast floor slab at the convex angle column position further comprises the following steps: the connecting reinforcing steel bars and the bottom plate reinforcing steel bars have the same specification and are poured in the cast-in-place laminated layer; the connecting steel bars stretch into the columns and the prefabricated bottom plate and have diameters not less than 10 times.
The processing method of the precast slab gap structure of the precast integral cast floor slab at the convex angle column position further comprises the following steps: the construction steel bars are steel bars with the diameter not less than 6mm, and the length of the construction steel bars is 20 times larger than the width of the parallel gaps; the construction steel bars extend out of the prefabricated bottom plate by 10 times of the diameter length.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the processing method of the precast slab notch structure of the prefabricated integrally cast floor system at the convex angle column, the bottom reinforcing steel bars at the notch position are not extended outwards, and the connecting reinforcing steel bars and the structural reinforcing steel bars are arranged at the notch position, so that the problem of collision with the column reinforcing steel bars is avoided, the problem of connection between the prefabricated bottom plate at the notch position and the column is well solved, the structure is simple, and the production and the construction are convenient.
2. The processing method of the precast slab notch structure of the precast floor system at the convex corner post position greatly reduces the notch types, facilitates the design and production and greatly improves the design and production efficiency by merging the notch size with 50mm as a reference.
3. The processing method of the precast slab gap structure of the precast integral cast floor at the convex angle column position of the invention is taken as a merging specification according to 50mm, because when the cast-in-place column is adopted, the width of the square wood outside the column template and the template is more than 50mm, the bottom slurry leakage gap between the gap of the precast floor and the column can be just blocked, and when the column adopts the precast column, the square wood can be conveniently padded at the lower part of the gap of the precast floor to block the slurry leakage gap, thus the construction problem can not be generated, and the operation is simple and easy.
[ description of the drawings ]
Fig. 1 is a schematic structural view of a precast slab gap structure of a precast slab deck of the present invention at a convex corner post position.
Fig. 2 is a cross-sectional view a-a of fig. 1.
FIG. 3 is a comparison of two gap sizes of prefabricated panels.
[ detailed description ] embodiments
Referring to the attached drawings 1 to 3 in the specification, the invention discloses a processing method of a precast slab gap structure of a precast integral floor system at a convex corner column position, wherein the precast slab gap structure comprises a precast bottom plate 1, a column 2, a connecting steel bar 5, a construction steel bar 6 and the like.
Wherein, the prefabricated bottom plate 1 is reserved with a gap 3 corresponding to the outward protruding position of the pillar 2. The size of the notch 3 is designed according to the convex size of different pillars 2 of the building, and from the minimum convex size, the width of the notch 3 is determined to be a prefabricated bottom plate 1 with one specification every 50mm, so as to obtain prefabricated bottom plates 1 with several notch specifications. Through merging the size of the notch 3 by taking 50mm as a reference, the notch types are greatly reduced, the design and the production are convenient, and the design and the production efficiency are greatly improved.
Furthermore, bottom plate reinforcing steel bars 4 are embedded in the bottom of the prefabricated bottom plate 1.
The connecting steel bars 5 are placed on the top surface of the prefabricated bottom plate 1. The connecting steel bars 5 and the bottom plate steel bars 4 have the same specification and are poured in the cast-in-situ laminated layer. The connecting steel bars 5 extend into the pillars 2 and the prefabricated bottom plate 1 and have diameters not less than 10 times.
The construction bars 6 are placed at the ends of the connection bars 5 and above the prefabricated floor 1. The construction steel bars are steel bars with the diameter not less than 6mm, and the length of the construction steel bars is 20 times larger than the width of the parallel gaps; the construction steel bars extend out of the prefabricated bottom plate by 10 times of the diameter length.
According to the invention, the bottom reinforcing steel bars 4 at the positions of the notches 3 are not extended outwards, and the connecting reinforcing steel bars 5 and the construction reinforcing steel bars 6 are arranged at the positions of the notches 3, so that the problem of collision with the reinforcing steel bars of the columns is avoided, the problem of connection between the prefabricated bottom plate 1 at the positions of the notches and the columns 2 is well solved, and the structure is simple, and the production and construction are convenient.
The processing method of the precast slab gap structure of the precast integral cast floor at the convex angle column comprises the following process steps of:
1) adding square wood on the outer side of the column 2 to serve as a bottom die to block the bottom of the gap 3;
2) the connecting steel bars 5 are laid on the prefabricated bottom plate 1, and the connecting steel bars 5 extend into the columns 2 to be conveniently combined with the columns 2;
3) placing a constructional steel bar 6 on the connecting steel bar 5;
4) and concrete is cast in the gap 3 and on the prefabricated bottom plate 1 in situ to block the gap 3 and form a cast-in-situ laminated layer 8 on the prefabricated bottom plate 1.
The reason why the size of the gap 3 is merged by taking 50mm as a reference is that when the cast-in-place column is adopted, the width of the column template and the square wood outside the template is more than 50mm, and the bottom slurry leakage gap between the gap 3 of the prefabricated bottom plate 1 and the column 2 can be just blocked. When the column 2 is a prefabricated column, a square wood pad can be conveniently arranged at the lower part of the notch 3 of the prefabricated bottom plate 1 to block a slurry leakage gap, so that the construction problem is avoided, and the operation is simple and easy.
The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.
Claims (2)
1. A processing method of a precast slab gap structure of a precast integral cast floor at a convex angle column position is characterized in that: the prefabricated slab gap structure comprises a prefabricated bottom plate, a column, connecting steel bars and construction steel bars; gaps are reserved at the positions, corresponding to the outward bulges of the pillars, of the prefabricated bottom plates; bottom plate steel bars are embedded in the bottoms of the prefabricated bottom plates; the connecting steel bars are placed on the top surface of the prefabricated bottom plate; the constructional steel bars are placed at the end parts of the connecting steel bars and are positioned above the prefabricated bottom plate;
the size of the notch of the prefabricated bottom plate is designed according to the convex size of different pillars of a building, and the prefabricated bottom plate with one specification is determined by increasing the width of the notch by 50mm from the minimum convex size so as to obtain prefabricated bottom plates with several notch specifications;
the connecting reinforcing steel bars and the bottom plate reinforcing steel bars have the same specification and are poured in the cast-in-place laminated layer; the connecting steel bars extend into the columns and the prefabricated bottom plate and have diameters not less than 10 times of the diameters of the connecting steel bars;
the method comprises the following process steps:
1) adding square wood on the outer side of the column to serve as a bottom die to plug the bottom of the gap;
2) placing connecting steel bars on the prefabricated bottom plate, wherein the connecting steel bars extend into the columns to be conveniently combined with the columns;
3) placing construction steel bars on the connecting steel bars;
4) and concrete is cast in the notch and on the prefabricated bottom plate in situ to block the notch and form a cast-in-situ laminated layer on the prefabricated bottom plate.
2. A method of treating a precast slab gap structure of a precast slab deck at a convex corner post position according to claim 1, wherein: the construction steel bars are steel bars with the diameter not less than 6mm, and the length of the construction steel bars is 20 times larger than the width of the parallel gaps; the construction steel bars extend out of the prefabricated bottom plate by 10 times of the diameter length.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010578937.2A CN111734029B (en) | 2020-06-23 | 2020-06-23 | Processing method of precast slab notch structure of precast integral-cast floor system at convex corner column position |
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| CN202010578937.2A CN111734029B (en) | 2020-06-23 | 2020-06-23 | Processing method of precast slab notch structure of precast integral-cast floor system at convex corner column position |
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| CN111734029A CN111734029A (en) | 2020-10-02 |
| CN111734029B true CN111734029B (en) | 2022-03-15 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000160749A (en) * | 1998-11-30 | 2000-06-13 | Matsushita Electric Works Ltd | Laying structure of floor panel |
| CN207194146U (en) * | 2017-06-22 | 2018-04-06 | 中国建筑股份有限公司 | Prestressing force assembly concrete frame joint attachment structure |
| CN108412099A (en) * | 2018-05-17 | 2018-08-17 | 中国矿业大学 | Bar connecting formula concrete prefabricated board and connection method are buried after through thickness |
| CN208347086U (en) * | 2018-06-29 | 2019-01-08 | 宁波普利凯建筑科技有限公司 | A kind of general laminated floor slab |
| CN209891421U (en) * | 2019-03-19 | 2020-01-03 | 上海杰地建筑设计有限公司 | Cast-in-place concrete frame beam and concrete coincide floor connection structure |
| CN210530083U (en) * | 2019-02-27 | 2020-05-15 | 中民筑友科技投资有限公司 | Connecting structure of bidirectional composite floor slab |
| CN210562663U (en) * | 2019-07-20 | 2020-05-19 | 北京致远工程建设监理有限责任公司 | Connecting structure of prefabricated plate and prefabricated column |
| CN111236442A (en) * | 2020-01-16 | 2020-06-05 | 江苏旺材科技有限公司 | Assembly type prefabricated part connecting structure and construction method thereof |
-
2020
- 2020-06-23 CN CN202010578937.2A patent/CN111734029B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000160749A (en) * | 1998-11-30 | 2000-06-13 | Matsushita Electric Works Ltd | Laying structure of floor panel |
| CN207194146U (en) * | 2017-06-22 | 2018-04-06 | 中国建筑股份有限公司 | Prestressing force assembly concrete frame joint attachment structure |
| CN108412099A (en) * | 2018-05-17 | 2018-08-17 | 中国矿业大学 | Bar connecting formula concrete prefabricated board and connection method are buried after through thickness |
| CN208347086U (en) * | 2018-06-29 | 2019-01-08 | 宁波普利凯建筑科技有限公司 | A kind of general laminated floor slab |
| CN210530083U (en) * | 2019-02-27 | 2020-05-15 | 中民筑友科技投资有限公司 | Connecting structure of bidirectional composite floor slab |
| CN209891421U (en) * | 2019-03-19 | 2020-01-03 | 上海杰地建筑设计有限公司 | Cast-in-place concrete frame beam and concrete coincide floor connection structure |
| CN210562663U (en) * | 2019-07-20 | 2020-05-19 | 北京致远工程建设监理有限责任公司 | Connecting structure of prefabricated plate and prefabricated column |
| CN111236442A (en) * | 2020-01-16 | 2020-06-05 | 江苏旺材科技有限公司 | Assembly type prefabricated part connecting structure and construction method thereof |
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