Laminated floor slab with separated pipelines

Abstract

The utility model discloses a composite floor slab with separated pipelines, which comprises a composite prefabricated slab and a composite cast-in-place layer arranged on the upper surface of the composite prefabricated slab, a hollow cavity is arranged in the composite prefabricated slab, the hollow cavity is arranged along the long edge direction of the composite prefabricated slab, and the hollow cavity is arranged in the composite prefabricated slab. An inverted U-shaped steel plate groove and a pulling and connecting steel plate for sealing the U-shaped steel plate groove are arranged in the hollow cavity, and a water and electricity pipeline is arranged in a sealed through cavity formed by the U-shaped steel plate groove and the pulling and connecting steel plate. The hollow cavity is formed in the laminated prefabricated slab, and the water and electricity pipelines are pre-buried in the hollow cavity, so that the water and electricity pipelines are convenient to install, and the pipelines are convenient to check, maintain and replace in the follow-up use period, and a building structure main body floor slab is prevented from being influenced and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, in particular to a composite floor slab with separated pipelines. Background Art

[0002] Prefabricated buildings refer to buildings assembled by transferring a large amount of on-site operation work in traditional construction methods to factories, fabricating building components and fittings (such as floor slabs, wall panels, stairs, balconies, etc.) in factories, transporting them to the construction site, and assembling them through reliable connection methods. The adoption of prefabricated buildings can not only significantly reduce the on-site formwork support workload, shorten the construction period, and improve construction accuracy, but also contribute to the green and low-carbon development of the construction industry.

[0003] However, in existing prefabricated buildings, water and electricity pipelines are generally directly embedded in precast slabs or cast-in-place layers, which not only makes pipeline installation inconvenient, but also makes pipeline inspection, maintenance, and replacement inconvenient. Summary of the Invention

[0004] Therefore, the purpose of the utility model is to provide a composite floor slab with separated pipelines to solve the above technical problems.

[0005] The utility model provides a composite floor slab with separated pipelines, which includes a composite precast slab and a composite cast-in-place layer arranged on the upper surface of the composite precast slab. At least one hollow cavity is arranged in the composite precast slab, and water and electricity pipelines are embedded in the hollow cavity.

[0006] In some embodiments, the hollow cavity is arranged along the long side direction of the composite precast slab.

[0007] In some embodiments, an inverted U-shaped steel plate groove and a connecting steel plate for closing the U-shaped steel plate groove are arranged in the hollow cavity, and the water and electricity pipelines are arranged in a closed cavity formed by the U-shaped steel plate groove and the connecting steel plate.

[0008] In some embodiments, both ends of the U-shaped steel plate groove are connected to the first steel bars in the composite precast slab, and the top end of the U-shaped steel plate groove protrudes from the upper surface of the composite precast slab.

[0009] In some embodiments, the U-shaped steel plate groove is integrally formed by stamping a steel plate.

[0010] In some embodiments, a decorative plate is arranged on the lower surface of the connecting steel plate.

[0011] In some embodiments, it further includes a plurality of truss steel bars evenly distributed along the long side direction of the composite precast slab. The lower parts of the truss steel bars are embedded in the composite precast slab, and the upper parts of the truss steel bars are embedded in the composite cast-in-place layer.

[0012] In some embodiments, the bottom end of the truss reinforcement is connected to the first reinforcement in the laminated precast slab, and the top end of the truss reinforcement is connected to the second reinforcement in the cast-in-place laminated layer.

[0013] In some embodiments, the truss reinforcement includes an upper chord bar and a plurality of pairs of truss web bars arranged on both sides of the upper chord bar. The upper chord bar is connected to the second reinforcement in the cast-in-place laminated layer. The top end of the truss web bar is connected to the upper chord bar, and the bottom end of the truss web bar is connected to the first reinforcement in the laminated precast slab.

[0014] In some embodiments, both ends of the laminated precast slab in the short side direction are supported on a laminated beam or a cast-in-place beam. The first reinforcement in the laminated precast slab extending along the short side direction extends above the laminated beam or the cast-in-place beam. The cast-in-place laminated layer covers the upper surfaces of the laminated precast slab and the laminated beam or the cast-in-place beam.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: According to the requirements of building electrical and other trades, by arranging hollow cavities in the laminated precast slab and embedding the water and electricity pipelines in the hollow cavities, it is not only convenient for the installation of the water and electricity pipelines, but also convenient for the inspection, maintenance and replacement of the pipelines during the subsequent use period, so as to avoid affecting and damaging the main floor slab of the building structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of a laminated floor slab with pipeline separation according to the present utility model;

[0018] Figure 2 is a sectional view of a laminated floor slab with pipeline separation according to the present utility model;

[0019] Figure 3 is Figure 2 an enlarged schematic view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To better understand the present utility model, more detailed descriptions will be made on various aspects of the present utility model with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of the embodiments of the present utility model, and do not limit the scope of the present utility model in any way. It should be noted that in this specification, the expressions such as first, second, and third are only used to distinguish one feature from another feature, and do not represent any limitation on the feature.

[0021] It should also be understood that the terms "comprising", "having", "including", "containing" and / or "consisting of", when used in this specification, denote the presence of the stated features, elements and / or components, but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0022] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It should also be understood that terms (such as those defined in common dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0023] Please refer to Figures 1 to 3 , an embodiment of the present utility model provides a composite floor slab with pipeline separation, which includes a composite precast slab 1 and a composite cast-in-place layer 2 provided on the upper surface of the composite precast slab 1.

[0024] Among them, the composite precast slab 1 is prefabricated in the factory by the composite precast slab manufacturer according to the construction requirements of the composite precast slab and the requirements of other trades such as building electricity. The composite cast-in-place layer 2 is formed by transporting the fabricated composite precast slab 1 to the construction site for hoisting, laying steel bars on the upper surface of the composite precast slab 1 and pouring concrete.

[0025] Specifically, in the above-mentioned composite precast slab 1, first steel bars 11 are arranged in a criss-cross grid shape, at least one hollow cavity is arranged longitudinally along the long side direction of the composite precast slab 1, an inverted U-shaped steel plate groove 12 and a connecting steel plate 13 for closing the U-shaped steel plate groove 12 are arranged in the hollow cavity, and water and electricity pipelines are embedded in the closed through cavity 14 formed by the U-shaped steel plate groove 12 and the connecting steel plate 13. In this way, the water and electricity pipelines can be separated from other parts of the composite precast slab, which is convenient for the installation of water and electricity pipelines and the inspection, maintenance and replacement of pipelines during subsequent use, so as to avoid affecting and damaging the main building structure floor while meeting the requirements of the main building structure floor. More specifically, the U-shaped steel plate groove 12 is integrally formed by stamping a steel plate, and L-shaped connecting parts are symmetrically arranged at both ends of the U-shaped steel plate groove 12. The L-shaped connecting part of the U-shaped steel plate groove 12 is fixedly connected to the first steel bars 11 arranged along the short side direction of the composite precast slab 1, and the top end of the U-shaped steel plate groove 12 protrudes from the upper surface of the composite precast slab 1, so as to reinforce the bearing capacity of the composite precast slab.

[0026] Meanwhile, a plurality of truss steel bars 15 are evenly arranged along the long side direction of the composite precast slab 1. The lower part of the truss steel bar 15 is embedded in the composite precast slab 1, while the upper part of the truss steel bar 15 is embedded in the cast-in-place composite layer 2. More specifically, the above-mentioned truss steel bar 15 includes an upper chord bar 151 and a plurality of pairs of truss web bars 152 arranged on both sides of the upper chord bar 151. The upper chord bar 151 can be connected to the second steel bar 21 laid in the cast-in-place composite layer 2. The truss web bars 152 are in an inverted V shape, and the top ends of the truss web bars 152 can be connected to the upper chord bar 151, while the bottom ends of the truss web bars 152 can be connected to the first steel bar 11 in the composite precast slab 1, so as to improve the overall bearing capacity of the composite floor slab.

[0027] In some embodiments, a decorative plate 16 is arranged on the lower surface of the above-mentioned connecting steel plate 13. The decorative plate 16 can be a metal plate or a plastic plate, so as to meet the building decoration effect and enhance the mechanical properties of the composite precast slab.

[0028] In some embodiments, both ends of the composite precast slab 1 in the short side direction are supported on the composite beam or the cast-in-place beam, and the first steel bar 11 in the composite precast slab 1 along the short side direction extends above the composite beam or the cast-in-place beam, and the cast-in-place composite layer 2 covers the upper surfaces of the composite precast slab 1 and the composite beam or the cast-in-place beam, so as to further improve the overall bearing capacity of the composite floor slab.

[0029] In practical applications, a composite floor slab with pipeline separation provided by the embodiment of the present utility model can be realized in the following embodiments:

[0030] First of all, the composite precast slab manufacturer configures and binds the first steel bars 11 that are criss-crossed in a grid shape according to the construction requirements of the composite precast slab and the requirements of building electrical and other trades. The first steel bars 11 arranged along the short side direction of the composite precast slab 1 are cut off in the middle; an inverted U-shaped steel plate groove 12 is arranged longitudinally along the long side direction in the middle of the composite precast slab 1. L-shaped connecting parts are symmetrically arranged at both ends of the U-shaped steel plate groove 12, and the L-shaped connecting parts of the U-shaped steel plate groove 12 are fixedly connected to the cut-off first steel bars 11 arranged along the short side direction of the composite precast slab 1 in a heading manner; a connecting steel plate 13 is fixedly connected to the lower surface of the U-shaped steel plate groove 12 by welding to close the U-shaped steel plate groove 12, and water and electricity pipelines are embedded in the closed cavity 14 formed by the U-shaped steel plate groove 12 and the connecting steel plate 13; a plurality of evenly distributed truss steel bars 15 are configured and bound on the first steel bars 11 along the long side direction of the composite precast slab 1; concrete is poured to form a rectangular composite precast slab 1, and the top ends of the U-shaped steel plate groove 12 and the upper parts of the truss steel bars 15 both protrude from the upper surface of the composite precast slab 1.

[0031] Secondly, the composite precast slab 1 that has reached the required curing is transported to the construction site for hoisting.

[0032] Again, on the upper surface of the laminated precast slab 1, the second steel bars 21 arranged in a crisscross grid shape are configured and tied according to the construction requirements of the cast-in-place laminated layer. At the same time, the top ends of the truss steel bars 15 are tied to the second steel bars 21; concrete is poured to form the cast-in-place laminated layer 2.

[0033] Finally, after the cast-in-place laminated layer 2 is cured to meet the requirements, the formwork and supports are removed to form the laminated floor slab.

[0034] The utility model is not only convenient for the installation of water and electricity pipelines and the inspection, maintenance and replacement of pipelines during subsequent use, but also can enhance the overall bearing capacity of the laminated floor slab while meeting the use requirements of the laminated floor slab.

[0035] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above-described embodiments only represent several implementation manners of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the appended claims.

Claims

1. A composite floor slab with pipeline separation, characterized in that It includes a laminated precast slab and a cast-in-place layer on the upper surface of the laminated precast slab. At least one hollow cavity is provided in the laminated precast slab, and water and electricity pipelines are embedded in the hollow cavity.

2. The composite floor slab with pipeline separation according to claim 1, characterized in that The hollow cavity is arranged along the long side direction of the laminated precast slab.

3. The composite floor slab with pipeline separation according to claim 2, wherein, An inverted U-shaped steel plate groove and a connecting steel plate for closing the U-shaped steel plate groove are provided in the hollow cavity, and the water and electricity pipelines are arranged in the closed cavity formed by the U-shaped steel plate groove and the connecting steel plate.

4. The precast and cast-in-situ composite floor slab with pipeline separation according to claim 3, wherein Both ends of the U-shaped steel plate groove are connected to the first steel bars in the laminated precast slab, and the top end of the U-shaped steel plate groove protrudes from the upper surface of the laminated precast slab.

5. The composite floor slab with pipeline separation according to any one of claims 3 or 4, characterized in that The U-shaped steel plate groove is integrally formed by stamping a steel plate.

6. The superposed floor slab with pipeline separation according to any one of claims 3 or 4, characterized in that A decorative plate is provided on the lower surface of the connecting steel plate.

7. The composite floor slab with pipeline separation according to claim 1, characterized in that, It also includes a plurality of truss steel bars evenly distributed along the long side direction of the laminated precast slab. The lower part of the truss steel bars is embedded in the laminated precast slab, and the upper part of the truss steel bars is embedded in the cast-in-place layer.

8. The composite floor slab with pipeline separation according to claim 7, characterized in that, The bottom end of the truss steel bar is connected to the first steel bar in the laminated precast slab, and the top end of the truss steel bar is connected to the second steel bar in the cast-in-place layer.

9. The composite floor slab with pipeline separation according to any one of claims 7 or 8, characterized in that, The truss steel bar includes an upper chord bar and multiple pairs of truss web bars arranged on both sides of the upper chord bar. The upper chord bar is connected to the second steel bar in the cast-in-place layer. The top end of the truss web bar is connected to the upper chord bar, and the bottom end of the truss web bar is connected to the first steel bar in the laminated precast slab.

10. The superposed floor slab with pipeline separation according to any one of claims 2 or 7, characterized in that Both ends of the laminated precast slab in the short side direction are supported on a laminated beam or a cast-in-place beam. The first steel bars in the laminated precast slab along the short side direction extend above the laminated beam or the cast-in-place beam. The cast-in-place layer covers the upper surfaces of the laminated precast slab and the laminated beam or the cast-in-place beam.

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