CN111502091A - Building floor with long service life and preparation method thereof - Google Patents
Building floor with long service life and preparation method thereof Download PDFInfo
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- CN111502091A CN111502091A CN202010466548.0A CN202010466548A CN111502091A CN 111502091 A CN111502091 A CN 111502091A CN 202010466548 A CN202010466548 A CN 202010466548A CN 111502091 A CN111502091 A CN 111502091A
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- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000010410 layer Substances 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 239000004567 concrete Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000011083 cement mortar Substances 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000007788 roughening Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 description 11
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 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
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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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
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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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
Abstract
The application discloses a building floor with long service life and a preparation method thereof. The building floor with long service life comprises a plurality of beam bodies, precast floor slabs and cast-in-place bodies, wherein the precast floor slabs are supported on the beam bodies, and the cast-in-place bodies are cast on the beam bodies and cast between the precast floor slabs and the beam bodies or between the adjacent precast floor slabs and the beam bodies; the two ends of each precast floor slab are provided with a plurality of dovetail grooves and a plurality of hook-shaped connecting ribs in parallel, the hook-shaped connecting ribs of adjacent precast floor slabs are hooked together, and the cast-in-place body is filled in each dovetail groove. The preparation method of the building floor with long service life comprises the steps of pouring and forming the precast floor slab, hoisting the precast floor slab, pouring the cast-in-place body and paving the upper layer structure. This application is used for improving the structure between the pre-cast floor of building floor, effectively avoids receiving the fracture problem that expend with heat and contract with cold and produce between the adjacent pre-cast floor to solve the waterproof problem of floor, with this life who prolongs building floor.
Description
Technical Field
The application relates to the technical field of building engineering, in particular to a building floor with long service life and a preparation method thereof.
Background
With the development of society and the improvement of living standard, the building becomes the most common residential building, the building is composed of wall bodies and floor slabs, and the floor is a top floor slab structure of the building body and plays roles of water resistance, heat insulation and the like of the whole building, so that the use of the whole building is directly determined by the quality of the floor. The floor is the floor at the topmost layer, is directly exposed to the external environment, is greatly influenced by the external environment, particularly the temperature difference between the day and the night, is easy to expand with heat and contract with cold, and is easy to crack, so that the service life of the floor is influenced. In addition, in recent years, the spliced buildings are raised, precast floor slabs are important members of the spliced buildings and are widely used again, and the precast floor slabs are formed by splicing a plurality of precast floor slabs together, so that the abnormity such as cracking and the like is easy to occur at the splicing positions, the abnormity such as water resistance, heat insulation and the like of the building body is influenced, and the use of the whole building is influenced.
Content of application
The technical problem solved by the application is to provide a building floor with long service life and a preparation method thereof, aiming at the defects in the background technology.
In order to solve the technical problem, the technical scheme of the application is as follows:
a building floor with long service life comprises a plurality of beam bodies, precast floor slabs and cast-in-place bodies, wherein the precast floor slabs are supported on the beam bodies, and the cast-in-place bodies are cast on the beam bodies and are cast between the precast floor slabs and the beam bodies or between the adjacent precast floor slabs and the beam bodies; the two ends of each precast floor slab are provided with a plurality of dovetail grooves and a plurality of hook-shaped connecting ribs in parallel, the hook-shaped connecting ribs of adjacent precast floor slabs are hooked together, and the cast-in-place body is filled in each dovetail groove.
Furthermore, each precast floor slab comprises an upper steel bar mesh, a lower steel bar mesh and a concrete body, wherein the upper steel bar mesh and the lower steel bar mesh are both poured in the concrete body, and the upper steel bar mesh is poured above the lower steel bar mesh; hook-shaped connecting ribs extend out of the outer sides of the upper reinforcing mesh and the lower reinforcing mesh.
Furthermore, the hook-shaped connecting ribs of the adjacent precast floor slabs are welded together.
Further, each precast floor slab comprises a plurality of central holes, and each central hole is arranged in the concrete body and is positioned between the upper reinforcing mesh and the lower reinforcing mesh.
Furthermore, the arrangement of the steel bars of the upper steel bar mesh is sparser than that of the steel bars of the lower steel bar mesh.
Furthermore, the beam body is provided with a stretching rib, the stretching rib stretches out of the upper part of the beam body from the inside of the beam body, and the stretching rib is welded with the hook-shaped connecting rib.
Furthermore, the two opposite sides of each precast floor slab are respectively provided with a convex block and a groove, and the convex block of one precast floor slab can be embedded into the groove of the other precast floor slab when the adjacent precast floor slabs are spliced.
Furthermore, a waterproof layer, a heat insulation layer and a cement mortar protective layer are sequentially arranged on the precast floor slab and the cast-in-place body.
The preparation method of the building floor with long service life comprises the following steps:
s1, pouring and forming the precast floor slab, pouring the precast floor slab which is hollow and is provided with a dovetail groove on the outer side through a die, extending a straight reinforcing steel bar out of the outer side of the reinforcing steel bar net during pouring, locating the straight reinforcing steel bar in the dovetail groove, and bending the straight reinforcing steel bar to form a hook-shaped connecting bar after pouring is finished;
s2, hoisting precast floor slabs, hoisting the precast floor slabs to a beam body through a hoisting device, embedding a convex block of one precast floor slab in the adjacent precast floor slabs into a groove of the other precast floor slab during hoisting, and hooking hook-shaped connecting ribs at the end parts of the adjacent precast floor slabs together;
s3, casting a cast-in-place body, welding adjacent hook-shaped connecting ribs together before casting the cast-in-place body, and welding the hook-shaped connecting ribs and the extending ribs on the beam body together; roughening the top of the beam body and the outer side of the precast floor slabs, and then pouring cast-in-place bodies between the adjacent precast floor slabs and between the precast floor slabs and the beam body;
s4, laying an upper layer structure, and sequentially laying a waterproof layer, a heat insulation layer and a cement mortar protective layer on the cast-in-place body and the precast floor slab.
The building floor and the preparation method thereof have the following advantages that: the precast floor slabs and the beam bodies and the adjacent precast floor slabs and the beam bodies are poured into an integral structure through the cast-in-place body, so that the integrity of the building construction is enhanced, and the service life of the building floor can be prolonged. The two ends of the precast floor slabs are provided with a plurality of dovetail grooves and a plurality of hook-shaped connecting ribs in parallel, when the precast floor slabs are installed, the end parts of the adjacent precast floor slabs are hooked together through the hook-shaped connecting ribs, and the adjacent precast floor slabs are connected together; meanwhile, due to the arrangement of the dovetail grooves, the precast floor slabs on two sides can be pulled together after the cast-in-place body filled in the dovetail grooves is solidified, so that the integrity between the adjacent precast floor slabs is better, and the adjacent precast floor slabs are not easy to crack due to the influence of external factors such as expansion with heat and contraction with cold, and the service life of a building floor is further prolonged.
Drawings
FIG. 1 is a schematic structural view of a precast floor slab of a building floor according to an embodiment of the present application;
fig. 2 is a schematic structural view of an upper layer reinforcing mesh of a pre-cast floor slab of a building floor according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a lower layer reinforcing mesh of a pre-cast floor slab of a building floor according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a structure of a pre-cast floor slab of a building floor according to an embodiment of the present invention, wherein the cross-sectional view is located on the same plane as the reinforcing mesh;
fig. 5 is a schematic cross-sectional view of the end of the most lateral precast floor slab of the building floor according to the embodiment of the present application (the cross section is located on the same plane as the reinforcing mesh);
FIG. 6 is a schematic longitudinal sectional view of the end of a pre-cast floor slab adjacent to a building floor according to an embodiment of the present invention (the section is located on the same plane as the protruding ribs);
fig. 7 is a schematic longitudinal sectional view of a side edge of a pre-cast floor slab adjacent to a building floor according to an embodiment of the present invention.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Detailed Description
To facilitate understanding for those skilled in the art, the present application will be described in further detail with reference to the accompanying drawings and examples.
Example one
Referring to fig. 1-7, a building floor with long service life effectively avoids the cracking problem caused by thermal expansion and cold contraction between adjacent precast floor slabs by improving the structure between the precast floor slabs of the building floor, thereby solving the waterproof problem of the floor and prolonging the service life of the building floor.
Referring to fig. 1 to 7, the building floor comprises a plurality of beam bodies 1, precast floor slabs 2 and cast-in-place bodies 3, wherein the beam bodies 1 are structures for supporting the building floor, and the precast floor slabs 2 are supported on the beam bodies 1. The cast-in-place body 3 is cast on the beam body 1, the cast-in-place body 3 is a concrete structure which is cast in situ between the precast floor slabs 2 and the beam body 1 or between the adjacent precast floor slabs 2 and the beam body 1 after each precast floor slab 2 is installed on the beam body 1, and the gaps at the end parts of the adjacent precast floor slabs 2 and the gaps between the precast floor slabs 2 and the beam body 1 are cast into an integral structure. The precast floor slabs 2 and the beam bodies 1 and the adjacent precast floor slabs 2 and the beam bodies 1 are poured into an integral structure through the cast-in-place bodies 3, so that the integrity of the house building is enhanced, and the service life of the building floor can be prolonged.
Referring to fig. 1, 4 to 6, a plurality of dovetail grooves 21 and a plurality of hook-shaped connecting ribs 22 are arranged in parallel at two ends of each precast floor slab 2 (i.e., at the outer side of the short side of the precast floor slab 2), and the hook-shaped connecting ribs 22 may be arranged in each dovetail groove 21 or between adjacent dovetail grooves 21. When the precast floor slabs 2 are installed, the hook-shaped connecting ribs 22 of the adjacent precast floor slabs 2 are hooked together, and the cast-in-place bodies 3 between the precast floor slabs 2 and the beam bodies 1 and between the adjacent precast floor slabs 2 and the beam bodies 1 are filled in the dovetail grooves 21. Therefore, after the building floor is assembled, the end parts of the adjacent precast floor slabs 2 are hooked together through the hook-shaped connecting ribs 22, and the adjacent precast floor slabs 2 are connected together; meanwhile, due to the arrangement of the dovetail grooves 21, the precast floor slabs 2 on two sides can be pulled together after the cast-in-place bodies 3 filled in the dovetail grooves 21 are solidified, so that the integrity between the adjacent precast floor slabs 2 is better, and the adjacent precast floor slabs 2 are not easy to crack due to the influence of external factors such as expansion with heat and contraction with cold, and the service life of a building floor is further prolonged.
Referring to fig. 1 to 3, each precast floor slab 2 includes an upper mesh reinforcement 23, a lower mesh reinforcement 24 and a concrete body 25, the upper mesh reinforcement 23 and the lower mesh reinforcement 24 are both poured in the concrete body 25, and the upper mesh reinforcement 23 is poured above the lower mesh reinforcement 24, so that the precast floor slab 2 with two layers of mesh reinforcements is formed, and the precast floor slab 2 has higher strength and stronger stress capability; the upper mesh reinforcement 23 and the lower mesh reinforcement 24 may be connected together by connecting reinforcing bars, further enhancing the strength of the precast floor slab 2. Hook-shaped connecting ribs 22 extend out of the outer sides of the upper reinforcing mesh 23 and the lower reinforcing mesh 24, so that an upper layer and a lower layer of hook-shaped connecting ribs 22 are formed at two ends of each precast floor slab 2, when the adjacent precast floor slabs 2 are installed, two groups of hook-shaped connecting ribs 22 corresponding to each other up and down are correspondingly hooked together, the adjacent precast floor slabs 2 can be connected more stably, the floor formed by the adjacent precast floor slabs 2 is better in integrity, and the service life of the building floor can be further prolonged.
Referring to fig. 1 to 3, as a further preferred scheme, the hook-shaped connecting ribs 22 of the adjacent precast floor slabs 2 are preferably welded together by electric welding, so that the connecting strength between the adjacent precast floor slabs 2 can be further enhanced, and the problem that the two hook-shaped connecting ribs 22 hooked together are not stressed when the adjacent hook-shaped connecting ribs 22 are not hooked in place due to errors can be avoided.
Referring to fig. 1 to 3, as a further preferred embodiment, in order to reduce the weight of the precast floor slabs 2 and further extend the service life of the building floor, each precast floor slab 2 is preferably configured as a hollow floor slab, each precast floor slab 2 includes a plurality of central holes, each central hole is disposed in a concrete body 25, preferably along the length direction of the precast floor slab 2, and is located between an upper reinforcement mesh 23 and a lower reinforcement mesh 24. The arrangement of the steel bars of the upper steel bar mesh 23 is preferably sparse than that of the steel bars of the lower steel bar mesh 24, the stress capacity of the lower part of the precast floor slab 2 with larger stress requirement is ensured by encrypting the arrangement of the steel bars of the lower steel bar mesh 24, and the manufacturing cost of the precast floor slab 2 is saved by reducing the arrangement of the steel bars of the upper steel bar mesh 23 with small stress requirement.
Referring to fig. 4-6, as a further preferred scheme, the beam body 1 is preferably provided with an extended rib 11, the extended rib 11 extends from the reinforcing mesh in the beam body 1 to the upper side of the beam body 1, and the extended rib 11 is welded with the hook-shaped connecting rib 22, so that the integrity of the precast floor slabs 2 and the beam body 1 is enhanced, and further cracking between the end parts of the adjacent precast floor slabs 2 and between the precast floor slabs 2 and the beam body 1 is avoided, thereby further enhancing the service life of the building floor.
Referring to fig. 6 and 7, as a further preferred scheme, the two opposite sides of each precast floor slab 2 (i.e. the outer sides of the long sides of the precast floor slabs 2) are respectively provided with a bump 26 and a groove 27, and the size and the shape of the bump 26 and the groove 27 are consistent, so that the bump 26 of one precast floor slab 2 can be embedded into the groove 27 of another precast floor slab 2 when the adjacent precast floor slabs 2 are spliced, so as to connect the side edges of the adjacent precast floor slabs 2 into a whole, reduce the cracking between the side edges of the adjacent precast floor slabs 2, and further prolong the service life of the building floor. In order to further improve the waterproof and heat insulation capability of the floor, a waterproof layer 4, a heat insulation layer 5 and a cement mortar protective layer 6 are sequentially arranged on the precast floor slab 2 and the cast-in-place body 3, the waterproof layer 4 forms an integral waterproof structure on each precast floor slab 2 and the cast-in-place body 3 to effectively prevent water, the heat insulation layer 5 forms an integral heat insulation structure on each precast floor slab 2 and the cast-in-place body 3 to effectively insulate heat, the cement mortar protective layer 6 protects the waterproof layer 4 and the heat insulation layer 5 on the uppermost layer and can also protect the structures of the precast floor slab 2 and the cast-in-place body 3 below, and the service life of the building floor is. The waterproof layer 4 can be made of waterproof materials commonly used in the prior art, such as JS composite waterproof materials, CPC agents, elastic cement and the like; the thermal insulation layer 5 can be made of thermal insulation materials commonly used in the prior art, such as polystyrene board, rock wool board, polyurethane foam material, etc.
Example two
The preparation method of the building floor with long service life in the first embodiment comprises the following steps of manufacturing a beam body 1 along with a whole building, prefabricating a precast floor slab 2, and manufacturing a cast-in-place body 3 after the precast floor slab 2 is installed, wherein the steps of precast floor slab casting forming, precast floor slab hoisting, cast-in-place body casting and upper layer structure laying are specifically as follows:
s1, pouring and forming precast floor slab
And pouring the precast floor slab 2 in advance, and using the precast floor slab when the construction of the beam body 1 of the building is completed. The precast floor slab 2 can be poured through a die in a floor slab workshop, the die can be used for pouring the precast floor slab 2 which is hollow and is provided with a dovetail groove 21 on the outer side, straight reinforcing steel bars extend out of the outer side of a reinforcing steel bar net in the pouring process of the precast floor slab 2 and after the pouring is finished, the straight reinforcing steel bars are positioned in the dovetail groove 21, the die is taken down after the pouring is finished, and the straight reinforcing steel bars are bent to form hook-shaped connecting bars 22; when the straight reinforcing bars are bent to form the hook-shaped connecting bars 22, the concrete structure at the root of the reinforcing bars needs to be protected, and the concrete at the root of the reinforcing bars is prevented from being damaged. The precast floor slab 2 is manufactured by adopting a mode of firstly pouring and then bending the straight reinforcing steel bars to form the hook-shaped connecting bars 22, so that the installation of a die for manufacturing the precast floor slab 2 is convenient, and the production and manufacturing efficiency of the precast floor slab 2 can be improved. In addition, when the precast floor slab 2 is poured, water needs to be sprayed for many times to maintain the concrete structure, so that the strength of the concrete structure is ensured, and the reliability and the service life of the precast floor slab 2 are ensured.
S2, hoisting precast floor slab
After the beam bodies 1 of the building are poured and reach the designed strength, hoisting the precast floor slabs 2 to the two adjacent beam bodies 1 through hoisting devices such as cranes and the like, and hoisting and placing the beam bodies 1 on the two beam bodies 1 one by one from one end to the other end of the beam body until the precast floor slabs 2 on the group of beam bodies 1 are hoisted; and after the hoisting of the precast floor slabs 2 on the two adjacent beam bodies 1 is finished, hoisting the precast floor slabs 2 adjacent to the group of precast floor slabs 2 (namely, the precast floor slabs 2 close to the position of the group of precast floor slabs 2 which are finished to be hoisted). During hoisting, the convex block 26 of one precast floor slab 2 in the adjacent precast floor slabs 2 is embedded into the groove 27 of the other precast floor slab 2, and the hook-shaped connecting ribs 22 at the end parts of the adjacent precast floor slabs 2 are hooked together; the embedding of the convex block 26 and the groove 27 and the hooking of the hook-shaped connecting rib 22 at the end part of the adjacent precast floor slab 2 are finished in the hoisting process, the precast floor slab 2 is prevented from being moved again after the precast floor slab 2 is hoisted to the beam body 1, the installation efficiency of the precast floor slab 2 can be improved, and the damage to the precast floor slab 2 and the beam body 1 caused by the collision of the precast floor slab 2 which is moved for many times can also be avoided.
S3, casting the cast-in-place body
The hook-shaped connecting ribs 22 of the upper layer and the lower layer of the end part of the adjacent precast floor slab 2 are correspondingly welded together before the cast-in-place body 3 is poured, the hook-shaped connecting ribs 22 and the extending ribs 11 on the beam body 1 are correspondingly welded together, and the steel bar structure formed by connecting the adjacent hook-shaped connecting ribs 22 after welding and the structure formed by welding the hook-shaped connecting ribs 22 and the extending ribs 11 form the steel bar structure of the cast-in-place body 3, so that the structural strength of the cast-in-place body 3 can be improved. In addition, the top of the beam body 1 and the outer sides of the two ends of the precast floor slab 2 need to be roughened and cleaned, and the integrity of the cast-in-place body 3, the precast floor slabs 2 on the two sides and the beam body 1 is ensured under the action of the dovetail grooves, so that the service life of the building floor is ensured. And finally, casting the cast-in-place bodies 3 between the adjacent precast floor slabs 2 and between the precast floor slabs 2 and the beam body 1, wherein after casting the cast-in-place bodies 3, multiple times of watering maintenance are needed. When the cast-in-place body 3 is poured between the precast floor slab 2 and the beam body 1, a template is required to be installed on the outer side of the beam body 1 (the side opposite to the end part of the precast floor slab 2), and the cast-in-place body 3 is poured between the template and the end part of the precast floor slab 2.
S4 laying upper layer structure
And (3) sequentially paving a waterproof layer 4, a heat insulation layer 5 and a cement mortar protective layer 6 on the cast-in-place body 3 and the precast floor slab 2, thereby finishing the manufacture of the building floor.
It should be understood that the above examples of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims (9)
1. A building floor with long service life is characterized in that: the precast floor slab comprises a plurality of beam bodies (1), precast floor slabs (2) and cast-in-place bodies (3), wherein the precast floor slabs (2) are supported on the beam bodies (1), and the cast-in-place bodies (3) are cast on the beam bodies (1) and cast between the precast floor slabs (2) and the beam bodies (1) or between the adjacent precast floor slabs (2) and the beam bodies (1); a plurality of dovetail grooves (21) and a plurality of hook-shaped connecting ribs (22) are arranged at two ends of each precast floor slab (2) in parallel, the hook-shaped connecting ribs (22) of the adjacent precast floor slabs (2) are hooked together, and the cast-in-place body (3) is filled in each dovetail groove (21).
2. The building floor of claim 1 having a long service life, wherein: each precast floor slab (2) comprises an upper steel bar mesh (23), a lower steel bar mesh (24) and a concrete body (25), the upper steel bar mesh (23) and the lower steel bar mesh (24) are both poured in the concrete body (25), and the upper steel bar mesh (23) is poured above the lower steel bar mesh (24); the outer sides of the upper reinforcing mesh (23) and the lower reinforcing mesh (24) extend out of hook-shaped connecting ribs (22).
3. The building floor of claim 2 having a long service life, wherein: and the hook-shaped connecting ribs (22) of the adjacent precast floor slabs (2) are welded together.
4. A long-life building floor according to claim 3, characterized in that: each precast floor slab (2) comprises a plurality of central holes, and each central hole is arranged in the concrete body (25) and is positioned between the upper reinforcing mesh (23) and the lower reinforcing mesh (24).
5. A long-life building floor according to claim 3, characterized in that: the arrangement of the steel bars of the upper steel bar mesh (23) is less than that of the steel bars of the lower steel bar mesh (24).
6. The building floor of claim 1 having a long service life, wherein: the beam body (1) is provided with an extending rib (11), the extending rib (11) extends out of the beam body (1) from the beam body (1) to the upper side of the beam body (1), and the extending rib (11) is welded with the hook-shaped connecting rib (22).
7. The building floor of claim 1 having a long service life, wherein: the two opposite sides of each precast floor slab (2) are respectively provided with a convex block (26) and a groove (27), and the convex block (26) of one precast floor slab (2) can be embedded into the groove (27) of the other precast floor slab (2) when the adjacent precast floor slabs (2) are spliced.
8. The building floor of claim 7 having a long service life, wherein: the precast floor slab (2) and the cast-in-place body (3) are sequentially provided with a waterproof layer (4), a heat insulation layer (5) and a cement mortar protective layer (6).
9. A method for producing a building floor having a long service life according to any of claims 1 to 8, characterized in that it comprises the following steps:
s1, pouring and forming the precast floor slab, pouring the precast floor slab (2) which is hollow and is provided with a dovetail groove (21) on the outer side through a mould, wherein the outer side of the reinforcing mesh extends out of the straight reinforcing steel bar during pouring, the straight reinforcing steel bar is positioned in the dovetail groove (21), and the straight reinforcing steel bar is bent to form a hook-shaped connecting bar (22) after pouring is finished;
s2, hoisting precast floor slabs, namely hoisting the precast floor slabs (2) to a beam body (1) through a hoisting device, embedding a convex block (26) of one precast floor slab (2) in the adjacent precast floor slabs (2) into a groove (27) of the other precast floor slab (2) during hoisting, and hooking hook-shaped connecting ribs (22) at the end parts of the adjacent precast floor slabs (2) together;
s3, casting a cast-in-place body, welding adjacent hook-shaped connecting ribs (22) together before casting the cast-in-place body (3), and welding the hook-shaped connecting ribs (22) together with the extending ribs (11) on the beam body (1); roughening the top of the beam body (1) and the outer side of the precast floor slabs (2), and then pouring cast-in-place bodies (3) between the adjacent precast floor slabs (2) and between the precast floor slabs (2) and the beam body (1);
s4, laying an upper layer structure, and sequentially laying a waterproof layer (4), a heat insulation layer (5) and a cement mortar protective layer (6) on the cast-in-place body (3) and the precast floor slab (2).
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