CN212224353U - Building floor with long service life - Google Patents
Building floor with long service life Download PDFInfo
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- CN212224353U CN212224353U CN202020941507.8U CN202020941507U CN212224353U CN 212224353 U CN212224353 U CN 212224353U CN 202020941507 U CN202020941507 U CN 202020941507U CN 212224353 U CN212224353 U CN 212224353U
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Abstract
The application discloses a building floor with long service life, which 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. 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 constructional engineering, in particular to a building floor with long service life.
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.
Disclosure of Invention
The technical problem that this application was solved is to not enough in the background art, provides the long service life's that can solve building floor.
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 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 (8)
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020941507.8U CN212224353U (en) | 2020-05-28 | 2020-05-28 | Building floor with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020941507.8U CN212224353U (en) | 2020-05-28 | 2020-05-28 | Building floor with long service life |
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| Publication Number | Publication Date |
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| CN212224353U true CN212224353U (en) | 2020-12-25 |
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| CN202020941507.8U Active CN212224353U (en) | 2020-05-28 | 2020-05-28 | Building floor with long service life |
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| CN (1) | CN212224353U (en) |
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