CN112922206A - Coincide floor structure and concreting structure - Google Patents
Coincide floor structure and concreting structure Download PDFInfo
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- CN112922206A CN112922206A CN202110131294.1A CN202110131294A CN112922206A CN 112922206 A CN112922206 A CN 112922206A CN 202110131294 A CN202110131294 A CN 202110131294A CN 112922206 A CN112922206 A CN 112922206A
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 57
- 239000010959 steel Substances 0.000 claims description 57
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 230000007935 neutral effect Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 abstract description 21
- 230000001976 improved effect Effects 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 15
- 210000001503 joint Anatomy 0.000 description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000009466 transformation 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
- 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
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
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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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention is suitable for the field of building construction, and provides a composite floor slab structure and a poured concrete structure, wherein the floor slab structure comprises: the prefabricated layer is positioned at the bottom of the floor slab structure and comprises a plurality of densely spliced bidirectional plates, the bidirectional plates are prefabricated plates, and the densely spliced positions of the prefabricated plates are spliced seams; the cast-in-place layer is positioned above the prefabricated layer and is in fit contact with the prefabricated layer; and the first connecting structure is used for connecting the abutted seams between the adjacent prefabricated plates. According to the prefabricated slab structure, the prefabricated layers and the cast-in-place layer are arranged in a fit mode and can interact with each other under stress, the prefabricated slabs to be spliced are connected through the abutted seams between the adjacent prefabricated slabs, the prefabricated slabs at the abutted seams are connected more tightly, the prefabricated slabs form an integral structure, the prefabricated slabs are stressed more uniformly, the bending resistance at the abutted seams is better, and the bending resistance of the floor slab structure is improved.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to a composite floor slab structure and a cast concrete structure.
Background
The building industry is a pillar type industry of national economy and has very important influence and effect on the economic development of China. At present, the building industry of China still belongs to labor-intensive industry, and the problems of low labor productivity, long project construction period, high resource consumption, serious environmental pollution and the like are still outstanding. The Ministry of construction issues a plurality of opinions about accelerating the industrialization development of the novel buildings, and proposes to drive the comprehensive transformation and upgrading of the construction industry by the industrialization of the novel buildings. The method specifically and positively applies the prefabricated concrete structure in the guaranteed housing and commercial housing and encourages the conditional areas to comprehensively popularize and apply the prefabricated internal partition wall, the prefabricated stair plate and the prefabricated floor slab in the future. Under such industry background and realistic conditions, the rapid development of fabricated building is favorable for promoting the digitization level of the building industry, thereby promoting the deep integration of the building industry and modern industrial technology, cultivating novel kinetic energy and creating a novel building mode. The prefabricated laminated slab belongs to an assembled structure, and is the main research content of building industrialization and housing industrialization. The installation is efficient and quick, and the construction period is short; the production process is not influenced by seasons and severe weather, the construction period is shortened, and the construction progress is promoted. And it has the advantages of large rigidity, good integrity, strong bending and shearing resistance bearing capacity, template saving, convenient construction and the like.
In the prior art, the connection mode of the bidirectional composite floor slab adopts a form of reserving a 300mm wide cast-in-place strip, a template and a support of the cast-in-place strip need to be erected on site, and the construction efficiency is low. And the overhanging reinforcing bar of prefabricated bottom plate produces the reinforcing bar collision problem serious in the construction installation, yielding, buckling in production, transportation and installation, leads to component concrete damage, unfilled corner, influences prefabricated component quality and impression. According to the understanding specified in the 'assembled concrete structure technical regulation' JGJ1-2014 clause, the 'dense plate joints' of the truss reinforced composite floor slab can only be used for the joints of the secondary stress directions of the unidirectional plates, and the 'integral joints' can only be adopted for the design of the bidirectional plates. At present, the influence of the close splicing and splicing method on the overall performance of the plate is verified by adopting a component designed by a close splicing, connecting and laminating bidirectional plate proposed in the standard ' application technical code of a steel bar truss laminated floor slab ' compiled by the China engineering construction standardization Association (CECS) ' and the safety and feasibility of the method are verified.
For the close-spliced seam, although the structure is simple and is beneficial to production and construction, the bending performance of the close-spliced seam is poor, and larger cracks are easy to appear at the seam.
Disclosure of Invention
The embodiment of the invention aims to provide a laminated floor slab structure, and aims to solve the problem of poor bending performance of close-splicing type splicing seams in a bidirectional laminated floor slab.
The embodiment of the present invention is achieved as follows, a laminated floor structure, including:
the prefabricated layer is positioned at the bottom of the floor slab structure and comprises a plurality of densely spliced bidirectional plates, and splicing seams are formed at densely spliced positions of the prefabricated plates;
the cast-in-place layer is positioned above the prefabricated layer and is in fit contact with the prefabricated layer; and the first connecting structure is used for connecting the abutted seams between the adjacent prefabricated plates.
Another object of an embodiment of the present invention is to provide a cast concrete structure, which includes the floor slab structure provided in the above embodiment.
According to the laminated floor slab structure provided by the embodiment of the invention, the prefabricated layers and the cast-in-place layer are arranged in a fitting manner and can interact with each other under stress, and for the prefabricated plates to be spliced, the prefabricated plates at the spliced positions are connected more tightly by connecting the spliced seams between the adjacent prefabricated plates, so that the prefabricated plates form an integral structure, the prefabricated plates are stressed more uniformly, and the bending resistance at the spliced positions is better, thereby improving the bending resistance of the floor slab structure.
Drawings
Fig. 1 is a schematic view of a floor structure according to an embodiment of the present invention;
fig. 2 is a structural view of a first connection structure of a floor structure according to an embodiment of the present invention;
fig. 3 is a structural diagram of a neutral body of a floor slab structure according to an embodiment of the present invention;
fig. 4 is a top view of a floor structure according to an embodiment of the present invention.
In the drawings: 1. prefabricating a layer; 2. a first transverse reinforcement bar; 3. a first longitudinal reinforcement; 4. a pre-stressed member; 5. chamfering; 6. a fixing member; 7. a cast-in-place layer; 8. a neutral body; 9. hooping; 10. a steel bar truss; 11. a second transverse reinforcement bar; 12. a second longitudinal reinforcement; 13. cushion blocks; 14. a channel; 15. and (6) splicing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a schematic diagram of a floor slab structure provided in an embodiment of the present invention includes:
the prefabricated layer is positioned at the bottom of the floor slab structure and comprises a plurality of densely spliced bidirectional plates, the bidirectional plates are prefabricated plates 1, and splicing seams 15 are formed at densely spliced positions of the prefabricated plates 1;
the cast-in-place layer 7 is positioned above the prefabricated layer and is in contact with the prefabricated layer in a fitting manner; and the first connecting structure is used for connecting the abutted seams 15 between the adjacent prefabricated plates 1.
In one embodiment of the invention, the floor is generally a four-sided support, and for four-sided supported slabs, it is appropriate to count as a bi-directional slab when the ratio of long to short sides is between 2 and 3; when the ratio of the long side to the short side is less than 2, the calculation is carried out according to the two-way slab, so that the two-way slab can be a laminated floor slab with the ratio of the long side to the short side being below 3, the two-way slab is a prefabricated slab 1, namely, a prefabricated and formed slab structure is carried out before the floor slab structure is poured, a prefabricated layer is formed by splicing a plurality of prefabricated slabs 1 in a close splicing mode, and the splicing seams 15 are also close splicing seams 15, namely, gaps among the prefabricated slabs 1 are small or no gaps.
In one embodiment of the invention, the cast-in-place layer 7 is located above the prefabricated layer, and is a structure which is formed by pouring concrete on the basis of the prefabricated layer after the prefabricated layer is completely spliced.
In an embodiment of the invention, the first connecting structure is used for connecting the abutted seams 15 of the precast slabs 1, specifically, a abutted seam 15 is arranged between two densely spliced precast slabs 1, the abutted seam 15 cannot be stressed, the gap of the abutted seam 15 is small, concrete cannot be poured, when the floor slab structure bears bending moment, only the cast-in-place layer 7 can bear bending moment, so that the two precast slabs 1 are connected through the first connecting structure, and the abutted seam 15 can bear bending moment; the first connecting structure can fixedly connect the prefabricated plates 1 together in a reinforcement binding mode; the two prefabricated panels 1 can be connected through a structural member with higher rigidity, and the structural member bears bending moment, so that the prefabricated panels 1 can bear bending moment; the prefabricated plates 1 at the joints 15 can be connected through flexible connecting pieces, so that the prefabricated plates 1 are pressed against each other to bear bending moment.
In the embodiment of the invention, the bidirectional composite floor slabs are spliced in the prefabricated layer in a close splicing mode, the splicing seams at the close splicing positions are small 15, the cast-in-place layer 7 can be directly poured without additionally arranging a template, the working procedure is simplified, and the structure is simpler; meanwhile, the prefabricated plates 1 in the prefabricated layers are connected through the first connecting structures, the influence that the joints 15 cannot bear bending moment is eliminated, the prefabricated layers can also bear bending moment, and the bending resistance of the whole floor slab is further improved.
As a preferred embodiment of the present invention, the floor slab structure further includes:
and the second connecting structure is used for connecting the steel bars in the cast-in-place layer 7 and the steel bars in the prefabricated layer through a steel bar truss 10.
In an embodiment of the invention, the second connecting structure is used for connecting the cast-in-place layer 7 and the prefabricated layer, and mainly vertically connecting the steel bar structures in the cast-in-place layer 7 and the prefabricated layer together through the steel bar truss 10 to form a three-dimensional space stress structure together, so that the cast-in-place layer 7 and the prefabricated layer form an integral common stress.
In a preferred embodiment of the present invention, the second connecting structure includes:
the prefabricated slab 1 is a prefabricated floor slab structural member, first transverse steel bars 2 and first longitudinal steel bars 3 are distributed in the prefabricated slab 1, and the transverse steel bars and the longitudinal steel bars are perpendicular to form a first steel bar mesh;
the cast-in-place layer 7 is a floor slab structure poured on the precast slab 1, second transverse steel bars 11 and second longitudinal steel bars 12 are distributed in the cast-in-place layer 7, and the second transverse steel bars 11 and the second longitudinal steel bars 12 are perpendicular to form a second steel bar mesh;
the steel bar trusses 10 are vertically connected with the first reinforcing mesh and the second reinforcing mesh, and the steel bar trusses 10 are arranged along the direction of the abutted seam 15.
In the embodiment of the present invention, when the prefabricated panel 1 is manufactured, a plurality of first transverse reinforcing steel bars 2 and first longitudinal reinforcing steel bars 3 are distributed in the prefabricated panel 1, and the two reinforcing steel bars may be perpendicular to each other on the plane of the prefabricated panel 1, thereby forming a first reinforcing mesh distributed inside the prefabricated panel 1.
In the embodiment of the invention, when the cast-in-situ layer 7 is poured, a plurality of second transverse reinforcing steel bars 11 and second longitudinal reinforcing steel bars 12 are pre-laid in the cast-in-situ layer 7, and the two reinforcing steel bars can be perpendicular to each other on the plane of the cast-in-situ layer 7, so as to form a second reinforcing mesh.
In the embodiment of the invention, the first longitudinal steel bars 3 and the second longitudinal steel bars 12 are both parallel to the joints 15, the first longitudinal steel bars 3 and the second longitudinal steel bars 12 are vertically staggered by a certain distance, namely, one second longitudinal steel bar 12 is positioned above the midpoint of the connecting line of the two adjacent first longitudinal steel bars 3, the two first transverse steel bars 2 at the near end of the precast slab 1 at the positions away from the joints 15 are connected with the second longitudinal steel bars 12 on the two first transverse steel bars 2 by the steel bar truss 10, the steel bar truss 10 can form an isosceles triangle, and the cast-in-situ layer 7 is poured on the basis.
In the embodiment of the invention, the cast-in-place layer 7 and the prefabricated layer are connected together through the first reinforcing mesh, the second reinforcing mesh and the steel bar truss 10, the three-dimensional structure formed by the steel bar truss 10 is arranged at the seam 15, and a part of bending moment which cannot be borne by the prefabricated layer at the seam 15 is transferred to the cast-in-place layer 7, so that the stress balance of the whole floor structure is enhanced.
In a preferred embodiment of the present invention, the prefabricated panels 1 are provided with first transverse reinforcing bars 2 at the ends thereof, and when the prefabricated panels 1 are densely spliced, the first transverse reinforcing bars 2 are bent toward the cast-in-place layer 7.
In the embodiment of the invention, the first transverse steel bar 2 of the precast slab 1 is perpendicular to the abutted seam 15, the first transverse steel bar 2 protrudes out of the precast layer body, when the precast layer is spliced, the first transverse steel bar 2 is bent towards the direction of the cast-in-place layer 7, the bent part is perpendicular to the plane of the precast layer, and when the cast-in-place layer 7 is poured, the end part of the spliced part of the precast slab 1 can be further combined with the cast-in-place layer 7, so that the cast-in-place layer 7 and the precast layer are connected into a whole.
In one embodiment of the invention, the chamfer 5 is arranged at the end part of the adjacent prefabricated plate 1 at the splicing seam 15, so that the close splicing is convenient, and the appearance is improved during the splicing process.
In one embodiment of the invention, after bending the protruding part of the first transverse steel bar 2 on the adjacent prefabricated panels 1 at the abutted seam 15, the bent part of the first transverse steel bar 2 on the surface of the prefabricated layer is banded by using the stirrup 9, so that the bent parts of the first transverse steel bar 2 on different prefabricated panels 1 are connected together, and the prefabricated panels 1 are further connected together, thereby enhancing the stress performance among different prefabricated panels 1.
As shown in fig. 2, as a preferred embodiment of the present invention, the first connection structure includes:
the pre-stressed member 4 is provided with a channel 14 on the precast slab 1, and the pre-stressed member 4 penetrates through the channel 14 of the adjacent densely spliced precast slabs 1 and is used for connecting the splicing seams 15; and
and the fixing piece 6 is arranged on the precast slab 1 and used for fixing the prestressed piece 4.
In the embodiment of the invention, the precast slab 1 is internally provided with a hollow channel 14 during manufacturing, the prestressed member 4 is inserted in the channel 14, when the precast slab 1 is spliced, the prestressed member 4 is inserted from the precast slab 1 on one side of the splice 15 to the precast slab 1 on the other side of the splice 15, pre-tightening force is applied to the prestressed member 4, and two ends of the prestressed member 4 are respectively fixed on the precast slabs 1 on two sides of the splice 15, so that the two precast slabs 1 are abutted together under the action of the pre-tightening force, the bending resistance of different precast slabs 1 is increased, the influence of incapability of bearing force at the splice 15 is eliminated, and the bending resistance of the precast slab is increased.
In the embodiment of the invention, the pre-stressed member 4 is fixed on the precast slab 1 through the fixing member 6, so that pre-tightening force can be conveniently applied to the pre-stressed member 4 and the pre-stressed member 4 can be conveniently fixed.
In one embodiment of the present invention, the pre-stressing member 4 is inserted perpendicularly to the seam 15; the channel 14 penetrates through the precast slab 1, wherein one part of the channel is arranged inside the precast slab 1 and is parallel to the plane of the precast slab 1, and the other part of the channel penetrates through the surface of the precast slab 1 in an inclined way; the fixing member 6 is disposed on the surface of the prefabricated panel 1.
In the embodiment of the present invention, the passage 14 is formed to enter from one end of the prefabricated panel 1 and to exit from the middle surface of the prefabricated panel 1, and the passage 14 is capable of accommodating the pre-stressed member 4, i.e., the pre-stressed member 4 enters from one end of the prefabricated panel 1 through the passage 14 and exits from the middle surface of the prefabricated panel 1. When the precast slabs 1 are spliced in the precast slabs, the inlets of the channels 14 at the ends of the two precast slabs 1 are in close butt joint, the prestressed pieces 4 penetrate through the channels 14 of the two precast slabs 1, and after pre-tightening force is applied, the ends of the prestressed pieces 4 are fixed on the surfaces of the precast slabs 1 through the fixing pieces 6 and can be fixed on the upper surfaces. The prestressed pieces 4 penetrate through the channels 14 and are fixed on the surface of the precast slab 1, so that the construction and splicing of the precast slab 1 are more convenient.
In an embodiment of the present invention, the pre-stressed member 4 is a flexible member, the channel 14 is a flexible pipe, and is pre-embedded in the prefabricated slab 1, and the pre-stressed member 4 is fixed on the fixing member 6 by anchoring. The flexible pipeline can be a corrugated pipe or a hose, the prestressed part 4 can be a steel wire or a steel strand, the flexible pipeline can be conveniently arranged on a path of the pipeline when the prefabricated plate 1 is manufactured, the flexible prestressed part 4 is conveniently adapted to different pipeline paths and is convenient to apply pretightening force, the prestressed part 4 is tensioned when the pretightening force is applied, the end part of the prestressed part 4 penetrates through the cushion block 13, the fixing part 6 is abutted against the cushion block 13, namely, the cushion block 13 on the prefabricated plate 1 provides anchoring supporting force for the fixing part 6, the prestressed part 4 is anchored on the prefabricated plate 1, then grouting treatment is carried out, the prestressed part 4 is fixedly connected with the prefabricated plate 1, and the prestress is borne between the prefabricated plates 1.
As another preferred embodiment of the present invention, the floor structure further includes:
and the neutral body 8 is positioned inside the cast-in-place layer 7 and has a hollow structure.
In one embodiment of the invention, the cast-in-place layer 7 is located above the precast layer, and there is a neutral zone, i.e. a neutral body 8, in the cast-in-place layer 7, which adds to the overall weight of the floor structure, which can be left un-cast when casting the cast-in-place layer 7, that is, there is little compression and no tension. During specific construction, the area can be filled with light materials, the area is not poured, and a hollow structure can be filled to prevent the area from being poured.
In one embodiment of the invention, the neutral body 8 is a hollow thin-walled box which is formed by casting, or is pre-fabricated to be placed on the precast slab 1, or is integrally formed when the precast slab 1 is manufactured. Namely, the hollow thin-wall box can be a thin-wall box body which is prefabricated into a shape the same as that of the neutral area and is placed on the prefabricated layer before the cast-in-situ layer 7 is poured, or the thin-wall box which is the same as that of the neutral area is directly manufactured on the prefabricated plate 1. The thin-walled box can reduce the weight of the floor structure without affecting the floor structure.
The embodiment of the invention also provides a cast concrete structure, which comprises the floor structure provided by any one of the embodiments, and a heat insulation layer or a sound insulation layer arranged on the floor structure. When the floor structure is applied to building, a heat-insulating layer and a sound-insulating layer can be arranged in the floor structure for sound insulation and heat preservation between different floors; or sound insulation and heat preservation between the floors and the external environment of the building. The floor slab structure provided by the embodiment can be used not only in the construction of the floor slab, but also in other construction projects needing concrete pouring, such as bridge slabs and the like.
The embodiment of the invention provides a laminated floor slab structure, and provides a cast concrete structure based on the laminated floor slab structure, different prefabricated slabs 1 are connected together through a first connecting structure, so that the influence of incapability of bearing force at the abutted seam 15 is eliminated, the stress characteristic of a prefabricated layer is improved, and the bending resistance of the prefabricated layer is enhanced; the prefabricated layer and the cast-in-place layer 7 are combined together through the second connecting structure, so that the prefabricated layer and the cast-in-place layer can bear force together to enhance the overall stress performance of the floor slab structure; through setting up neutral body 8, neither influence the structural characteristic of floor structure, alleviateed the weight of floor again, saved the material.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A composite floor structure, said floor structure comprising:
the prefabricated layer is positioned at the bottom of the floor slab structure and comprises a plurality of densely spliced bidirectional plates, the bidirectional plates are prefabricated plates, and the densely spliced positions of the prefabricated plates are spliced seams;
the cast-in-place layer is positioned above the prefabricated layer and is in fit contact with the prefabricated layer; and
and the first connecting structure is used for connecting the abutted seams between the adjacent prefabricated plates.
2. A floor structure according to claim 1, further comprising:
and the second connecting structure is used for connecting the steel bars in the cast-in-place layer and the steel bars in the prefabricated layer through a steel bar truss.
3. A floor structure according to claim 2, wherein the second connection structure comprises:
the prefabricated slab is a prefabricated floor slab structural member, first transverse steel bars and first longitudinal steel bars are distributed in the prefabricated slab, and the transverse steel bars and the longitudinal steel bars are perpendicular to form a first steel bar mesh;
the cast-in-place layer is of a floor slab structure poured on the precast slabs, second transverse steel bars and second longitudinal steel bars are distributed in the cast-in-place layer, and the second transverse steel bars and the second longitudinal steel bars are perpendicular to form a second steel bar mesh;
the steel bar trusses are vertically connected with the first steel bar mesh and the second steel bar mesh, and the steel bar trusses are arranged along the splicing direction.
4. A floor structure as claimed in claim 2, wherein the prefabricated panels have first transverse reinforcing bars protruding from the ends thereof, and the protruding first transverse reinforcing bars are bent in the direction of the cast-in-place layer when the prefabricated panels are densely spliced.
5. A floor structure according to claim 1, wherein the first connection structure comprises:
the pre-stressed pieces are provided with channels, and the pre-stressed pieces penetrate through the channels of the adjacent densely spliced pre-fabricated plates and are used for connecting the splicing seams; and
and the fixing piece is arranged on the precast slab and used for fixing the prestressed piece.
6. A floor structure according to claim 5, wherein the pre-stressing members are provided with a through direction perpendicular to the joints; the channel penetrates through the precast slab, wherein one part of the channel is arranged inside the precast slab and is parallel to the plane of the precast slab, and the other part of the channel penetrates through the surface of the precast slab in an inclined manner; the fixing piece is arranged on the surface of the prefabricated plate.
7. A floor structure as claimed in claim 6, wherein the pre-stressed member is a flexible member, the channel is a flexible conduit, pre-embedded in the pre-fabricated member, and the pre-stressed member is anchored to the anchor member.
8. A floor structure according to claim 1, further comprising:
and the neutral body is positioned inside the cast-in-place layer and has a hollow structure.
9. A floor structure according to claim 8, wherein the neutral body is a hollow thin-walled box that is prefabricated and placed on the prefabricated panels, or is integrally formed when the prefabricated panels are made.
10. A cast concrete structure, characterized in that it comprises a floor structure according to any one of claims 1-9, and an insulating or sound-insulating layer provided on the floor structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110131294.1A CN112922206A (en) | 2021-01-30 | 2021-01-30 | Coincide floor structure and concreting structure |
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| CN202110131294.1A CN112922206A (en) | 2021-01-30 | 2021-01-30 | Coincide floor structure and concreting structure |
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| CN112922206A true CN112922206A (en) | 2021-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118582002A (en) * | 2024-06-18 | 2024-09-03 | 中建三局集团华南有限公司 | Concrete composite floor slab structure and construction method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588899A1 (en) * | 1985-10-18 | 1987-04-24 | Ron Eli | Method for casting a reinforced concrete ribbed slab |
| US20120174518A1 (en) * | 2009-09-29 | 2012-07-12 | Elmere | Method for Producing a Building Having a Prefabricated Wood Framework, and Resulting Building |
| CN205242775U (en) * | 2015-11-24 | 2016-05-18 | 绍兴宝业西伟德混凝土预制件有限公司 | Take two -way connected node of piece coincide floor |
| CN207348281U (en) * | 2017-07-06 | 2018-05-11 | 中国十七冶集团有限公司 | A kind of hollow superposed floor of bidirectional stress |
| CN109898714A (en) * | 2019-04-02 | 2019-06-18 | 上海应用技术大学 | The close spelling connection structure of fibre sheet material concrete bidirectional laminated slab and implementation method |
| CN110499856A (en) * | 2019-07-29 | 2019-11-26 | 浙江大东吴建筑科技有限公司 | A kind of splicing construction of prestressing force bidirectional stress superimposed sheet |
| CN210067175U (en) * | 2019-02-27 | 2020-02-14 | 中民筑友科技投资有限公司 | Bidirectional composite floor slab |
| CN212248837U (en) * | 2020-02-10 | 2020-12-29 | 筑友智造科技产业集团有限公司 | Bidirectional hollow composite floor slab, slab joint structure and connection structure with frame beam column |
-
2021
- 2021-01-30 CN CN202110131294.1A patent/CN112922206A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588899A1 (en) * | 1985-10-18 | 1987-04-24 | Ron Eli | Method for casting a reinforced concrete ribbed slab |
| US20120174518A1 (en) * | 2009-09-29 | 2012-07-12 | Elmere | Method for Producing a Building Having a Prefabricated Wood Framework, and Resulting Building |
| CN205242775U (en) * | 2015-11-24 | 2016-05-18 | 绍兴宝业西伟德混凝土预制件有限公司 | Take two -way connected node of piece coincide floor |
| CN207348281U (en) * | 2017-07-06 | 2018-05-11 | 中国十七冶集团有限公司 | A kind of hollow superposed floor of bidirectional stress |
| CN210067175U (en) * | 2019-02-27 | 2020-02-14 | 中民筑友科技投资有限公司 | Bidirectional composite floor slab |
| CN109898714A (en) * | 2019-04-02 | 2019-06-18 | 上海应用技术大学 | The close spelling connection structure of fibre sheet material concrete bidirectional laminated slab and implementation method |
| CN110499856A (en) * | 2019-07-29 | 2019-11-26 | 浙江大东吴建筑科技有限公司 | A kind of splicing construction of prestressing force bidirectional stress superimposed sheet |
| CN212248837U (en) * | 2020-02-10 | 2020-12-29 | 筑友智造科技产业集团有限公司 | Bidirectional hollow composite floor slab, slab joint structure and connection structure with frame beam column |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118582002A (en) * | 2024-06-18 | 2024-09-03 | 中建三局集团华南有限公司 | Concrete composite floor slab structure and construction method thereof |
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