CN214614891U - Laminated floor slab - Google Patents
Laminated floor slab Download PDFInfo
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- CN214614891U CN214614891U CN202023203496.2U CN202023203496U CN214614891U CN 214614891 U CN214614891 U CN 214614891U CN 202023203496 U CN202023203496 U CN 202023203496U CN 214614891 U CN214614891 U CN 214614891U
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Abstract
The utility model discloses a composite floor slab, which comprises a single floor slab body, wherein bottom longitudinal ribs are embedded in the single floor slab body, a plurality of reserved notches are arranged on the periphery of the surface of the single floor slab body, and the positions of the reserved notches adjacent to the single floor slab body correspond to each other and can be used for placing rear reinforcing steel bars; the reserved notch comprises a connecting part and a corner part formed by extending and bending the connecting part, and at least one end of the rear reinforcing steel bar is bent to be placed into the corner part. The utility model provides a coincide floor utilizes the mode of reserving the notch adopts the rearmounted reinforcing bar, has avoided the board end to indulge the muscle and stretch out the floor monomer and the transportation that causes and the problem that assembly efficiency is low, simultaneously, through the setting of turning portion, can effectively reduce reinforcing bar anchor length, reduces the size of reserving the notch.
Description
Technical Field
The utility model relates to an assembly type structure field especially relates to a coincide floor.
Background
Because the prefabricated wall can be finished in a factory, the construction site only needs to be connected, the construction difficulty is obviously reduced, the construction environment is improved, and the prefabricated wall is widely applied.
Coincide floor among the prior art, for the convenience of the connection of two adjacent floors, its four sides all stretches out there is the reinforcing bar, often needs artifical ligature reinforcing bar during the assembly, and assembly efficiency is low, moreover, can appear the coincide floor and stretch out the problem that reinforcing bar and roof beam reinforcing bar collided, influence the quality.
Therefore, how to improve the transportation quality of the composite floor slab, facilitating the hoisting and simultaneously ensuring the firmness of the floor slab connection is a technical problem which needs to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coincide floor, this coincide floor can effectual improvement on-the-spot efficiency of construction, uses manpower sparingly, connects stably, and the transportation is convenient, and hoist and mount are simple.
In order to achieve the above object, the utility model provides a following technical scheme:
a composite floor slab comprises a single floor slab body, wherein slab bottom longitudinal bars are embedded in the single floor slab body, a plurality of reserved notches are formed in the periphery of the surface of the single floor slab body, and the positions of the reserved notches adjacent to the single floor slab body correspond to each other and can be used for placing rear reinforcing steel bars; the reserved notch comprises a connecting part and a corner part formed by extending and bending the connecting part, and at least one end of the rear reinforcing steel bar is bent to be placed into the corner part.
Preferably, the reserved notch is L-shaped.
Preferably, the floor slab further comprises a post-cast layer positioned on the upper side of the floor slab single body, and slab top longitudinal ribs are embedded in the post-cast layer.
Preferably, the floor slab further comprises a support, the support is located on the periphery of the bottom surface of the floor slab single body, and the rear reinforcing steel bar extends out of the floor slab single body and is suspended above the support.
Preferably, the suspension length of the rear reinforcing steel bar is more than or equal to 5d and at least extends to the center line position of the support, wherein d is the diameter of the rear reinforcing steel bar.
Preferably, the periphery of the post-cast layer is connected with the support, and the floor single body is positioned at the middle bottom of the post-cast layer.
Preferably, the reserved notch comprises an edge reserved notch and a connection reserved notch, the edge reserved groove is located at one side edge of the support, which is used for connecting the single floor slab, and the connection reserved notch is located at one side edge of the single floor slab, which is used for connecting the adjacent single floor slab.
Preferably, the length of the connecting part and the corner part of the edge reserving notch is [ max (0.4La, 15d) +10] mm, the width of the edge reserving notch is 15-20 mm, wherein La is the basic anchoring length, and d is the diameter of the rear reinforcing steel bar.
Preferably, the length of the connecting part connecting the reserved notches is [ max (0.6La, 15d) +10] mm, the length of the corner part is [ max (0.4La, 15d) +10] mm, and the width of the connecting reserved notch is 15-20 mm, wherein La is the basic anchoring length, and d is the diameter of the rear reinforcing steel bar.
Preferably, the section size of the rear reinforcing steel bars is larger than that of the plate bottom longitudinal bars, and the spacing distance between the rear reinforcing steel bars is larger than that between the plate bottom longitudinal bars; and the sum of the sectional areas of the rear reinforcing steel bars is equal to the sum of the sectional areas of the plate bottom longitudinal bars at the corresponding position.
The utility model provides a composite floor slab, including the floor slab monomer, the floor slab monomer is buried with the board bottom longitudinal reinforcement underground, the surface periphery of floor slab monomer is equipped with a plurality of reservation notches, the position of the reservation notch adjacent to the floor slab monomer corresponds and can be used for the post-positioned reinforcing bar to put into; the reserved notch comprises a connecting part and a corner part formed by extending and bending the connecting part, and at least one end of the rear reinforcing steel bar is bent to be placed into the corner part. The utility model provides a coincide floor utilizes the mode of reserving the notch adopts the rearmounted reinforcing bar, has avoided the board end to indulge the muscle and stretch out the floor monomer and the transportation that causes and the problem that assembly efficiency is low, simultaneously, through the setting of turning portion, can effectively reduce reinforcing bar anchor length, reduces the size of reserving the notch.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a three-dimensional schematic view of a composite floor slab provided by the present invention;
fig. 2 is a plan view of the composite floor slab provided by the present invention;
fig. 3 is a sectional view of a reserved notch of a composite floor slab provided by the present invention;
fig. 4 is a diagram of a connection node of a composite floor slab without a groove in the composite floor slab provided by the present invention;
fig. 5 is a diagram of a connection node of a composite floor slab with a groove in the composite floor slab provided by the present invention;
fig. 6 is a diagram of a connection node between adjacent floor monomers in a composite floor slab provided by the present invention;
wherein: floor slab monomer-100; reserving a notch-101; a type reserved notch-101-1; a B-type reserved notch-101-2; a C-type reserved notch-101-3; d-type reserved notch-101-4; longitudinal ribs-102 at the bottom of the plate; postposition reinforcing steel bar-103; post-pouring layer-200; plate top longitudinal ribs-201; a support-300.
Detailed Description
The core of the utility model is to provide a coincide floor, this coincide floor can effectual improvement on-the-spot efficiency of construction, uses manpower sparingly, connects stably, and the transportation is convenient, and hoist and mount are simple.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 6, fig. 1 is a three-dimensional schematic view of a composite floor slab provided by the present invention;
fig. 2 is a plan view of the composite floor slab provided by the present invention; fig. 3 is a sectional view of a reserved notch of a composite floor slab provided by the present invention; fig. 4 is a diagram of a connection node of a composite floor slab without a groove in the composite floor slab provided by the present invention; fig. 5 is a diagram of a connection node of a composite floor slab with a groove in the composite floor slab provided by the present invention; fig. 6 is a diagram of the connection node between the adjacent floor monomers in the composite floor slab.
In this embodiment, the laminated floor slab includes a single floor slab 100, and a slab bottom longitudinal bar 102 is embedded inside the single floor slab 100, that is, a steel bar is embedded inside the single floor slab 100, and the steel bar is only located inside the single floor slab 100 and is not exposed; the periphery of the surface of each floor slab single body 100 is provided with a plurality of reserved notches 101, the reserved notches 101 of the adjacent floor slab single bodies 100 correspond to each other in position and can be used for placing rear reinforcing steel bars 103, and the rear reinforcing steel bars 103 are connected and fixed between the adjacent floor slab single bodies 100 by connecting the reserved notches 101 of the two floor slab single bodies 100; the reserved notch 101 comprises a connecting part and a corner part formed by extending and bending the connecting part, the stability of the rear reinforcing steel bars 103 can be improved due to the arrangement of the corner part, the firmness of connection between the floor single bodies 100 is improved, and at least one end of each rear reinforcing steel bar 103 is bent to be placed into the corner part.
The utility model provides a coincide floor utilizes the setting of reserving notch 101, adopts rearmounted reinforcing bar 103's mode, has avoided the board end to indulge muscle 102 and stretch out floor monomer 100 and the transportation that causes and the problem that assembly efficiency is low, through the setting of turning portion, can effectively reduce reinforcing bar anchor length, reduces the size of reserving notch 101.
On the basis of each embodiment, reserve notch 101 and be the L type, utilize L type to reserve notch 101, effectively reduced the size of reserving notch 101, reduced the influence that reserve notch 101 was arranged to superimposed sheet truss reinforcing bar.
In addition to the above embodiments, the floor system further includes a post-cast layer 200 located above the floor slab single body 100, and the slab top longitudinal ribs 201 are embedded in the post-cast layer 200.
In addition to the above embodiments, the support 300 is further included, the support 300 is located on the periphery of the bottom surface of the single floor slab 100, the rear reinforcing steel bar 103 extends out of the single floor slab 100 and is suspended on the upper portion of the support 300, the suspended end of the rear reinforcing steel bar 103 does not need to be bent, and the suspended end of the rear reinforcing steel bar 103 can be firmly connected with the post-cast layer 200.
On the basis of the above embodiments, the suspension length of the rear reinforcing steel bar 103 is not less than 5d and extends to at least the center line position of the support 300, wherein d is the diameter of the rear reinforcing steel bar 103, so as to ensure the connection strength between the floor slab single body 100 and the post-cast layer 200.
In addition to the above embodiments, the periphery of the post-cast layer 200 is connected to the pedestal 300, and the floor slab unit 100 is located at the middle bottom of the post-cast layer 200, as shown in fig. 4.
On the basis of the above embodiments, the reserved slot 101 includes an edge reserved slot and a connection reserved slot, the edge reserved slot is located at one side edge of the floor slab single body 100 for connecting the support 300, and the connection reserved slot is located at one side edge of the floor slab single body 100 for connecting the adjacent floor slab single bodies 100. The arrangement of the edge reserved notch and the connection reserved notch depends on the position of the single floor slabs 100, namely, the reserved notch 101 for connecting and fixing two single floor slabs 100 is a connection reserved notch, and the reserved notch 101 for connecting the support 300 and the post-cast layer 200 is an edge reserved notch.
Furthermore, the length of the connecting part and the corner part of the edge reserved notch is [ max (0.4La, 15d) +10] mm, and the width of the edge reserved notch is 15-20 mm, so that concrete can smoothly flow into the groove when the rear steel bar 103 is placed and the concrete of the post-cast layer 200 is poured; where La is the basic anchoring length and d is the diameter of the rear rebar 103.
Furthermore, the length of the connecting part for connecting the reserved notch is [ max (0.6La, 15d) +10] mm, the length of the corner part is [ max (0.4La, 15d) +10] mm, and the width of the connecting reserved notch is 15-20 mm, so that when the rear steel bar 103 is placed and the concrete of the post-cast layer 200 is poured, the concrete can smoothly flow into the groove; where La is the basic anchoring length and d is the diameter of the rear rebar 103. Since the connection between adjacent floor monomers 100 is more demanding, the length of the connection portion connecting the rebates is preferably greater than the length of the connection portion of the edge rebate.
On the basis of the above embodiments, the cross-sectional dimension of the rear reinforcing bars 103 is larger than the cross-sectional dimension of the plate bottom longitudinal bars 102, and the spacing distance between the rear reinforcing bars 103 is larger than the spacing distance between the plate bottom longitudinal bars 102; and the sum of the sectional areas of the rear reinforcing steel bars 103 is equal to the sum of the sectional areas of the bottom longitudinal bars 102 at the corresponding positions. Above-mentioned setting utilizes "equal area replacement" principle, and the rearmounted reinforcing bar 103 of reservation notch 101 adopts the major diameter reinforcing bar, under the prerequisite that satisfies structural security, has reduced the quantity of reservation notch 101, has improved the efficiency of construction on-the-spot.
In a specific embodiment, including prefabricated coincide floor monomer 100, concrete post-cast layer 200, superimposed sheet reservation notch 101, rearmounted reinforcing bar 103, wherein prefabricated coincide floor monomer 100 is in support 300 department, the junction of adjacent floor monomer 100 does not go out the muscle, utilize the free reservation notch 101 of superimposed sheet and rearmounted reinforcing bar 103 to realize not going out the atress of muscle superimposed floor in support 300 department, board and board junction, utilize "equal area replacement" principle, rearmounted reinforcing bar 103 in reservation notch 101 adopts the major diameter reinforcing bar, make the total area of major diameter reinforcing bar equal to superimposed sheet slab bottom reinforcing bar total area, utilize the reservation notch 101 of L type, reduce reinforcing bar anchor length, reduce the size of reservation notch 101.
The utility model provides a coincide floor, its assembling process includes:
step S1: the production mold of the assembled single floor slab 100 does not need to reserve a groove for extending out the reinforcing steel bar because no reinforcing steel bars are arranged on four sides of the laminated single floor slab 100;
step S2: placing the bottom plate steel bars of the standardized finished laminated slab, wherein a finished steel bar framework can be adopted;
step S3: determining the arrangement distance of the reserved notches 101, and by utilizing the principle of equal-area replacement, if the common plate reinforcing bars are 8mm in diameter, 200mm in distance and 251 square millimeters in total area, the rear reinforcing bars 103 of the reserved notches 101 are 10mm in diameter, 300mm in distance and 262 square millimeters in total area, so that the arrangement distance of the reserved notches 101 is 300 mm;
step S4: determining the size of a reserved notch 101, wherein the shape of an L-shaped notch is as shown in figures 2-3, and for the A-type reserved notch 101-1 and the B-type reserved notch 101-2, the processing lengths in the X direction and the Y direction are both [ max (0.4La, 15d) +10] mm; the C-type reserved notch 101-3 and the D-type reserved notch 101-4 are machined to be [ max (0.4La, 15D) +10] mm in the Y direction, and are machined to be [2 max (0.6La, 15D) +20] mm in the X direction, wherein La is the basic anchoring length, and D is the diameter of the rear reinforcing steel bar 103;
step S5: pouring concrete to produce a laminated floor slab with no ribs on four sides of the reserved notch 101;
step S6: hoisting two adjacent laminated floor slabs with no ribs on four sides to a specified position, wherein reserved notches 101 at the intersection of the prefabricated laminated floor slabs and the prefabricated laminated floor slabs are aligned with each other;
step S7: placing a large-diameter rear steel bar 103, wherein for the A-type reserved notch 101-1, the machining sizes of the rear steel bar 103 in the X direction and the Y direction are both [ max0.4La, 15d + extending length ] mm; for the B-type reserved notch 101-2, the machining size of the rear steel bar 103 in the Y direction is [ max0.4La and 15d + extending length ] mm, and the machining size in the X direction is max0.4La and 15 dmm; for the C-type reserved notch 101-3, the machining size of the rear steel bar 103Y direction is [ max0.4La and 15d + extending length ] mm, and the machining size of the X direction is max2 × 0.6La and 2 × 15 dmm; for the D-type reserved notch 101-4, the machining size of the rear steel bar 103 in the Y direction is [ max0.4La and 15D ] mm, and the machining size of the rear steel bar in the X direction is max2 × 0.6La and 2 × 15dmm, wherein La is the basic anchoring length, and D is the diameter of the rear steel bar 103;
step S8: binding upper reinforcing steel bars, and pouring concrete.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a coincide floor has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The composite floor slab is characterized by comprising a single floor slab (100), wherein a slab bottom longitudinal bar (102) is embedded in the single floor slab (100), a plurality of reserved notches (101) are formed in the periphery of the surface of the single floor slab (100), and the positions of the reserved notches (101) adjacent to the single floor slab (100) correspond to each other and can be used for placing a post-positioned reinforcing bar (103); the reserved notch (101) comprises a connecting part and a corner part formed by extending and bending the connecting part, and at least one end of the rear reinforcing steel bar (103) is bent to be placed into the corner part.
2. Laminated floor slab, according to claim 1, characterised in that said rebate (101) is L-shaped.
3. The composite floor slab as claimed in claim 1, further comprising a post-cast layer (200) on the upper side of the floor slab single body (100), wherein a plate top longitudinal rib (201) is embedded in the post-cast layer (200).
4. The laminated floor slab as claimed in claim 3, further comprising a support (300), wherein the support (300) is located at the periphery of the bottom surface of the single floor slab (100), and the rear reinforcing steel bar (103) extends out of the single floor slab (100) and is suspended above the support (300).
5. The composite floor slab as claimed in claim 4, wherein the suspension length of the rear reinforcement (103) is greater than or equal to 5d and extends at least to the center line position of the support (300), wherein d is the diameter of the rear reinforcement (103).
6. The laminated floor slab as claimed in claim 4, characterised in that the periphery of the post-cast layer (200) is connected with the pedestal (300), and the floor slab unit (100) is located at the middle bottom of the post-cast layer (200).
7. A laminated floor slab as claimed in any one of claims 1 to 6, characterised in that the rebate (101) comprises an edge rebate located at one side edge of the floor slab unit (100) for connection with a pedestal (300) and a connection rebate located at one side edge of the floor slab unit (100) for connection with an adjacent floor slab unit (100).
8. The laminated floor slab as claimed in claim 7, wherein the length of the connection part and the corner part of the edge rebate is [ max (0.4La, 15d) +10] mm, the width of the edge rebate is 15-20 mm, where La is the basic anchoring length and d is the diameter of the rear reinforcement bar (103).
9. The laminated floor slab according to claim 7, wherein the length of the connection portion connecting the reserved slots is [ max (0.6La, 15d) +10] mm, the length of the corner portion is [ max (0.4La, 15d) +10] mm, and the width of the connection reserved slots is 15-20 mm, wherein La is a basic anchoring length and d is a diameter of the rear reinforcing bar (103).
10. The laminated floor slab as claimed in any one of claims 1 to 6, wherein the cross-sectional dimension of the rear reinforcing bars (103) is larger than the cross-sectional dimension of the slab bottom longitudinal bars (102), and the spacing distance between the rear reinforcing bars (103) is larger than the spacing distance between the slab bottom longitudinal bars (102); and the sum of the sectional areas of the rear reinforcing steel bars (103) is equal to the sum of the sectional areas of the plate bottom longitudinal bars (102) at the corresponding positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023203496.2U CN214614891U (en) | 2020-12-25 | 2020-12-25 | Laminated floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023203496.2U CN214614891U (en) | 2020-12-25 | 2020-12-25 | Laminated floor slab |
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| CN214614891U true CN214614891U (en) | 2021-11-05 |
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| CN202023203496.2U Active CN214614891U (en) | 2020-12-25 | 2020-12-25 | Laminated floor slab |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538676A (en) * | 2022-09-14 | 2022-12-30 | 上海宝冶集团有限公司 | Prefabricated reinforcement-free laminated slab and construction method thereof |
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2020
- 2020-12-25 CN CN202023203496.2U patent/CN214614891U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115538676A (en) * | 2022-09-14 | 2022-12-30 | 上海宝冶集团有限公司 | Prefabricated reinforcement-free laminated slab and construction method thereof |
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