CN218374629U - Longitudinal prestressed rib laminated slab - Google Patents
Longitudinal prestressed rib laminated slab Download PDFInfo
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- CN218374629U CN218374629U CN202122706779.7U CN202122706779U CN218374629U CN 218374629 U CN218374629 U CN 218374629U CN 202122706779 U CN202122706779 U CN 202122706779U CN 218374629 U CN218374629 U CN 218374629U
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Abstract
The utility model relates to a prestressed longitudinal rib superimposed sheet relates to the field of superimposed sheet, it includes the bottom plate, roof and truss, the bottom plate sets up with the roof is the average level, and the roof is located the top of bottom plate, the top surface of bottom plate and the bottom surface butt of roof, set up the first heavy groove that subtracts of a plurality of on the top surface of bottom plate, set up a plurality of and the first second that subtracts the heavy groove one-to-one on the bottom surface of roof and subtract heavy groove, the bottom of truss is buried underground in the bottom plate, the top of truss is buried underground in the roof, the truss is used for connecting bottom plate and roof. This application has the effect that makes the superimposed sheet lightweight and install more conveniently.
Description
Technical Field
The application relates to the field of superimposed sheet, especially relate to a prestressing force longitudinal rib superimposed sheet.
Background
The laminated slab is an assembled integral floor slab formed by laminating prefabricated slabs and cast-in-place reinforced concrete layers. The composite floor slab has good integrity, is frequently used in building construction, and is suitable for high-rise buildings and large-bay buildings with higher requirements on overall rigidity.
At present, a commonly used composite slab comprises a prefabricated bottom plate and a cast-in-place top plate, wherein concrete is poured into a mold with a steel reinforcement framework, part of the steel reinforcement framework extends out of the top surface of the prefabricated bottom plate, then the prefabricated bottom plate is transported to a construction site, and then the cast-in-place top plate is poured on the prefabricated bottom plate, so that the cast-in-place top plate and the prefabricated bottom plate form a whole. When the composite slab is used, the composite slab cast by the cast-in-place roof on site is installed on a building.
In view of the above-mentioned related technologies, the inventor considers that the composite slab is of a great weight, so that the number of construction supports required when the composite slab is used is large, and the composite slab is inconvenient to install and use.
SUMMERY OF THE UTILITY MODEL
In order to lighten the dead weight of superimposed sheet, make the superimposed sheet installation more convenient, this application provides a prestressing force longitudinal rib superimposed sheet.
The application provides a pair of longitudinal rib superimposed sheet of prestressing force adopts following technical scheme:
the utility model provides a rib superimposed sheet is indulged to prestressing force, includes bottom plate, roof and truss, and the bottom plate sets up with the roof is equal level, and the roof is located the top of bottom plate, and the top surface of bottom plate and the bottom surface butt of roof have seted up the first groove that subtracts of a plurality of on the top surface of bottom plate, have seted up the second that a plurality of and first subtract heavy groove one-to-one on the bottom surface of roof and subtract heavy groove, the bottom of truss is buried underground in the bottom plate, the top of truss is buried underground in the roof, the truss is used for connecting bottom plate and roof.
By adopting the technical scheme, the first weight reducing grooves of the bottom plate and the second weight reducing grooves of the top plate form a plurality of cavities on the contact surface of the bottom plate and the top plate, so that the concrete is replaced by adopting a cavity structure in the middle of the laminated slab, the dead weight of the laminated slab is effectively reduced, the use of the concrete is saved, the laminated slab is lightened, the number of construction supports is reduced, and the laminated slab is easy to mount; the cavity structure in the middle of the laminated slab improves the bending resistance of the laminated slab and improves the bearing capacity of the laminated slab; the bottom plate and the top plate are connected through the truss, so that the bottom plate and the top plate are reliably connected, the laminated slab forms a whole, and the integrity of the laminated slab is improved.
Optionally, the bottom plate is a precast concrete plate; the top plate is a cast-in-place concrete plate.
Through adopting above-mentioned technical scheme, the back is prefabricated to the bottom plate, transports the job site and carries out cast-in-place roof, makes bottom plate and roof combine to form a whole, bears jointly, has improved superimposed sheet's wholeness to the anti-seismic performance of superimposed sheet has been improved.
Optionally, a first longitudinal steel bar is embedded in the bottom plate, the first longitudinal steel bar is located below the first weight-reducing groove, and the axial direction of the first longitudinal steel bar is the same as the length direction of the bottom plate.
Through adopting above-mentioned technical scheme, bury first longitudinal reinforcement underground along length direction in the bottom plate, improved the intensity of bottom plate along length direction, and then improved the bearing capacity of bottom plate along length direction.
Optionally, a second longitudinal steel bar is embedded in the top plate, the second longitudinal steel bar is located above the second weight-reducing groove, and the axial direction of the second longitudinal steel bar is the same as the length direction of the top plate.
Through adopting above-mentioned technical scheme, bury first longitudinal reinforcement underground along length direction in the roof, improved the roof along length direction's intensity, and then improved the bearing capacity of roof along length direction.
Optionally, the first longitudinal steel bar and the second longitudinal steel bar are both prestressed steel bars.
By adopting the technical scheme, because the first longitudinal steel bar and the second longitudinal steel bar are prestressed steel bars, the steel consumption of the bottom plate and the top plate is reduced, and the bearing capacity and the crack resistance of the laminated slab are improved; simultaneously because bottom plate and roof have prestressing force for the decline of superimposed sheet middle part reduces, has further reduced construction and has supported quantity, and then makes the installation of superimposed sheet more convenient.
Optionally, a first transverse steel bar is embedded in the bottom plate, the first transverse steel bar is located below the first longitudinal steel bar, and the axial direction of the first transverse steel bar is the same as the width direction of the bottom plate.
Through adopting above-mentioned technical scheme, bury first horizontal reinforcing bar underground along width direction in the bottom plate, improved the intensity of bottom plate along width direction, and then improved the bearing capacity of bottom plate along width direction, and first horizontal reinforcing bar constitutes two-way reinforcing bar net with first vertical reinforcing bar in the bottom plate, has improved the wholeness of bottom plate.
Optionally, a second transverse steel bar is embedded in the top plate, the second transverse steel bar is located below the second longitudinal steel bar and above the second lightening groove, and the axis direction of the second transverse steel bar is the same as the width direction of the top plate.
Through adopting above-mentioned technical scheme, bury the second transverse reinforcement underground along width direction in the roof, improved the intensity of roof along width direction, and then improved the bearing capacity of roof along width direction, and the second transverse reinforcement constitutes two-way reinforcing bar net with the vertical reinforcing bar of second in the bottom plate, has improved the wholeness of roof.
Optionally, the truss is provided with a plurality of steel bars along the width direction of the bottom plate, the truss comprises an upper chord steel bar, a lower chord steel bar and web members, the upper chord steel bar is embedded in the top plate, the lower chord steel bar is embedded in the bottom plate, the length directions of the upper chord steel bar and the lower chord steel bar are the same as the length direction of the bottom plate, the web members are located between the upper chord steel bar and the lower chord steel bar and are fixedly connected with the upper chord steel bar and the lower chord steel bar, and the web members penetrate through the bottom plate and the top plate.
By adopting the technical scheme, the web member reinforcing steel bars connect the lower chord reinforcing steel bars positioned on the bottom plate with the upper chord reinforcing steel bars positioned on the top plate, so that the bottom plate is reliably connected with the top plate, the web member reinforcing steel bars penetrate through the bottom plate and the top plate, and the connection strength of the bottom plate and the top plate is further improved by the web member reinforcing steel bars.
Optionally, the two lower chord steel bars are symmetrically arranged, and the two lower chord steel bars are fixedly connected with the upper chord steel bar through the two web member steel bars respectively.
By adopting the technical scheme, the longitudinal section of the truss steel bar is triangular, so that the bottom plate and the top plate are more stably connected, the dislocation phenomenon is not easy to occur, and the connection strength of the bottom plate and the top plate is enhanced due to the increase of the number of the web member steel bars.
In summary, the present application includes at least one of the following beneficial technical effects:
through the first weight reduction grooves formed in the bottom plate and the second weight reduction grooves formed in the top plate, the dead weight of the laminated slab is reduced, the using amount of concrete is saved, the number of required construction supports during installation of the laminated slab is reduced, and the laminated slab is more convenient to install;
because the first longitudinal steel bar and the second longitudinal steel bar are prestressed steel bars, the steel consumption of the bottom plate and the top plate is reduced, and the bearing capacity and the crack resistance of the laminated slab are improved;
the bottom plate and the top plate are connected through the truss, so that the connection strength and reliability of the bottom plate and the top plate are improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a sectional view intended to illustrate the inter-fitting relationship;
fig. 3 is a schematic view intended to illustrate the structure of the truss.
Description of reference numerals: 1. a base plate; 11. a first transverse reinforcement bar; 12. a first longitudinal reinforcement; 13. a first weight-reducing slot; 2. a top plate; 21. a second transverse reinforcement bar; 22. a second longitudinal reinforcement; 23. a second weight-reducing slot; 3. a truss; 31. upper chord steel bars; 32. a lower chord steel bar; 33. and (7) web member reinforcing steel bars.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses prestressing force longitudinal rib superimposed sheet. Referring to fig. 1, a prestressed longitudinal rib laminated slab includes bottom plate 1, roof 2 and truss 3, and bottom plate 1, the equal level of roof 2 set up, and roof 2 is located bottom plate 1 top, and truss 3 is located bottom plate 1, roof 2, and with bottom plate 1, the equal fixed connection of roof 2. When the combined type floor is used, the bottom plate 1 and the top plate 2 are connected through the truss 3 to form an integral composite slab, and then the composite slab is installed on a building.
Referring to fig. 1 and 2, the base plate 1 has a rectangular plate shape and is a precast concrete plate. A plurality of first transverse steel bars 11 are embedded in the bottom of the bottom plate 1, the first transverse steel bars 11 are embedded in the length direction of the bottom plate 1, and the axis direction of the first transverse steel bars 11 is the same as the width direction of the bottom plate 1. A first longitudinal steel bar 12 is embedded in the bottom plate 1, the first longitudinal steel bar 12 is located above a first transverse steel bar 11, a plurality of first longitudinal steel bars 12 are embedded along the width direction of the bottom plate 1, the first longitudinal steel bar 12 is a prestressed steel bar, the axial direction of the first longitudinal steel bar is the same as the length direction of the bottom plate 1, and the first longitudinal steel bar 12 and the first transverse steel bar 11 form a bidirectional steel mesh.
When prefabricating, the first longitudinal steel bar 12 and the first transverse steel bar 11 are buried in concrete to form a bidirectional steel bar mesh, pre-stress treatment needs to be carried out before the first longitudinal steel bar 12 is buried, so that the first longitudinal steel bar 12 becomes a prestressed steel bar, and after the concrete is solidified, the first longitudinal steel bar 12 and the first transverse steel bar 11 are fixed together with the concrete to form the bottom plate 1.
Referring to fig. 1 and 2, the top plate 2 is a rectangular plate-like cast-in-place concrete plate, and the bottom surface of the top plate 2 abuts against the top surface of the bottom plate 1. The top of roof 2 has buried second longitudinal reinforcement 22 underground, and second longitudinal reinforcement 22 has buried a plurality of along the width direction of roof 2, and second longitudinal reinforcement 22 is the prestressing steel, and the axis direction is the same with the length direction of roof 2. A second transverse steel bar 21 is buried in the top plate 2, the second transverse steel bar 21 is located below a second longitudinal steel bar 22, the second transverse steel bar 21 is buried along the length direction of the top plate 2, and the axis direction of the second transverse steel bar 21 is the same as the width direction of the top plate 2.
When in-situ casting is carried out, the top plate 2 is cast in situ on the prefabricated bottom plate 1, meanwhile, the second longitudinal steel bars 22 and the second transverse steel bars 21 are embedded in concrete to form a bidirectional steel bar mesh, pre-stress treatment needs to be carried out before the second longitudinal steel bars 22 are embedded, the second longitudinal steel bars 22 become pre-stressed steel bars, and after the concrete is solidified, the second longitudinal steel bars 22 and the second transverse steel bars 21 are fixed together with the concrete to form the top plate 2.
Referring to fig. 2, a first weight-reducing groove 13 is formed in the top surface of the bottom plate 1, the first weight-reducing groove 13 is located above the first longitudinal steel bar 12, the longitudinal section of the first weight-reducing groove 13 is in a semi-arc shape, and a plurality of first weight-reducing grooves are formed in the width direction of the bottom plate 1, the length direction of the first weight-reducing groove 13 is the same as the length direction of the bottom plate 1, and the first weight-reducing groove 13 penetrates through two end faces of the bottom plate 1 in the length direction. The bottom surface of the top plate 2 is provided with second weight reducing grooves 23 in one-to-one correspondence with the first weight reducing grooves 13, the second weight reducing grooves 23 are positioned below the second transverse reinforcing steel bars 21, the longitudinal sections of the second weight reducing grooves 23 are in a semi-circular arc shape, a plurality of second weight reducing grooves 23 are arranged in the width direction of the top plate 2, the groove walls of the second weight reducing grooves 23 and the groove walls of the first weight reducing grooves 13 are positioned on the same circumferential surface, the length direction of the second weight reducing grooves 23 is the same as the length direction of the top plate 2, and the second weight reducing grooves 23 penetrate through two end faces in the length direction of the top plate 2.
During the use, first subtract heavy groove 13 and second and subtract heavy groove 23 cooperation and form a circular cavity for the superimposed sheet dead weight alleviates, has improved superimposed sheet's bearing capacity, and construction support quantity when having reduced the installation makes superimposed sheet's installation more convenient.
Referring to fig. 2 and 3, a plurality of trusses 3 are arranged along the width direction of the laminated slab, each truss 3 comprises an upper chord steel bar 31, a lower chord steel bar 32 and a web member steel bar 33, the upper chord steel bars 31 are embedded in the top plate 2 and are positioned below the second transverse steel bars 21 and above the second weight-reducing grooves 23, and the length direction of the upper chord steel bars 31 is the same as the length direction of the top plate 2; the two lower-chord steel bars 32 are embedded in the bottom plate 1 symmetrically, the lower-chord steel bars 32 are positioned above the first transverse steel bars 11 and below the first lightening grooves 13, and the length direction of the lower-chord steel bars 32 is the same as that of the bottom plate 1; the web member reinforcing steel bar 33 is snakelike, and web member reinforcing steel bar 33 symmetry sets up between last chord reinforcing steel bar 31 and two last chord reinforcing steel bars 32, and length direction is the same with the length direction of last chord reinforcing steel bar 31, and web member reinforcing steel bar 33 and last chord reinforcing steel bar 31, the equal fixed connection of last chord reinforcing steel bar 32.
When the bottom plate 1 is prefabricated, the bottom of the truss 3 is embedded in concrete, and after the concrete is solidified, the truss 3 is fixed in the bottom plate 1 by the bottom plate 1; when the roof 2 is cast in place, the top of the truss 3 is buried in the roof 2, after the concrete is solidified, the top of the truss 3 is fixed in the roof 2, the bottom plate 1 is connected with the roof 2 through the truss 3, so that the bottom plate 1 and the roof 2 form a whole, and the web member steel bars 33 penetrate through the bottom plate 1 and the roof 2, the connection strength of the bottom plate 1 and the roof 2 is improved, the connection of the bottom plate 1 and the roof 2 is stable, and the laminated slab is installed on a building.
The implementation principle of the prestressed longitudinal rib laminated slab in the embodiment of the application is as follows: when the bottom plate 1 is prefabricated, a first transverse steel bar 11 and a first longitudinal steel bar 12 subjected to prestress treatment form a bidirectional steel bar mesh, the bidirectional steel bar mesh is embedded in concrete, then the bottom of the truss 3 is also embedded in the concrete, meanwhile, a first weight-reducing groove 13 is formed in the top of the bottom plate 1, and after the concrete is solidified, the bottom plate 1 is prefabricated; the top plate 2 is cast in situ on the prefabricated bottom plate 1, the second weight reduction grooves 23 which are in one-to-one correspondence with the first weight reduction grooves 13 are formed in the bottom surface of the top plate 2, the tops of the trusses 3 are embedded in the top plate 2, then the bidirectional reinforcing mesh formed by the second transverse reinforcing bars 21 and the prestressed second longitudinal reinforcing bars 22 is also embedded in the top plate 2, after concrete is solidified, the top plate 2 is cast in situ, then the laminated slab is installed on a building, the hollow cavity structure of the laminated slab and the prestressed reinforcing bars enable the steel consumption of the laminated slab to be small, the dead weight is light, and the laminated slab is convenient to install.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a prestressing force longitudinal rib superimposed sheet which characterized in that: including bottom plate (1), roof (2) and truss (3), bottom plate (1) and roof (2) average level set up, and roof (2) are located the top of bottom plate (1), the top surface of bottom plate (1) and the bottom surface butt of roof (2), seted up a plurality of on the top surface of bottom plate (1) and firstly subtract heavy groove (13), set up a plurality of on the bottom surface of roof (2) and firstly subtract the second of heavy groove (13) one-to-one and subtract heavy groove (23), the bottom of truss (3) is buried underground in bottom plate (1), the top of truss (3) is buried underground in roof (2), truss (3) are used for connecting bottom plate (1) and roof (2).
2. The prestressed longitudinal rib laminated slab as claimed in claim 1, wherein: the bottom plate (1) is a precast concrete plate; the top plate (2) is a cast-in-place concrete plate.
3. The prestressed longitudinal rib laminated slab as claimed in claim 1, wherein: a first longitudinal steel bar (12) is buried in the bottom plate (1), the first longitudinal steel bar (12) is located below the first lightening groove (13), and the axial direction of the first longitudinal steel bar (12) is the same as the length direction of the bottom plate (1).
4. A prestressed longitudinal rib laminated slab as claimed in claim 3, wherein: a second longitudinal steel bar (22) is embedded in the top plate (2), the second longitudinal steel bar (22) is located above the second lightening groove (23), and the axial direction of the second longitudinal steel bar (22) is the same as the length direction of the top plate (2).
5. A prestressed longitudinal rib laminated slab as claimed in claim 4, wherein: the first longitudinal steel bar (12) and the second longitudinal steel bar (22) are both prestressed steel bars.
6. A prestressed longitudinal rib laminated slab as claimed in claim 3, wherein: first transverse steel bars (11) are buried in the bottom plate (1), the first transverse steel bars (11) are located below the first longitudinal steel bars (12), and the axial direction of the first transverse steel bars (11) is the same as the width direction of the bottom plate (1).
7. The prestressed longitudinal rib laminated slab as claimed in claim 4, wherein: and a second transverse steel bar (21) is embedded in the top plate (2), the second transverse steel bar (21) is positioned below the second longitudinal steel bar (22) and above the second lightening groove (23), and the axial direction of the second transverse steel bar (21) is the same as the width direction of the top plate (2).
8. The prestressed longitudinal rib laminated slab as claimed in claim 1, wherein: the truss (3) is provided with a plurality of along the width direction of bottom plate (1), truss (3) include last chord reinforcing bar (31), last chord reinforcing bar (32) and web member reinforcing bar (33), last chord reinforcing bar (31) are buried underground in roof (2), last chord reinforcing bar (32) are buried underground in bottom plate (1), the length direction of last chord reinforcing bar (31), last chord reinforcing bar (32) all is the same with the length direction of bottom plate (1), web member reinforcing bar (33) are located between last chord reinforcing bar (31) and last chord reinforcing bar (32), and with last chord reinforcing bar (31), the equal fixed connection of last chord reinforcing bar (32), web member reinforcing bar (33) are worn to establish in bottom plate (1), roof (2).
9. A prestressed longitudinal rib laminated slab as claimed in claim 8, wherein: two lower chord steel bars (32) are symmetrically arranged, and the two lower chord steel bars (32) are fixedly connected with the upper chord steel bar (31) through web members (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122706779.7U CN218374629U (en) | 2021-11-05 | 2021-11-05 | Longitudinal prestressed rib laminated slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122706779.7U CN218374629U (en) | 2021-11-05 | 2021-11-05 | Longitudinal prestressed rib laminated slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218374629U true CN218374629U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122706779.7U Active CN218374629U (en) | 2021-11-05 | 2021-11-05 | Longitudinal prestressed rib laminated slab |
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| Country | Link |
|---|---|
| CN (1) | CN218374629U (en) |
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2021
- 2021-11-05 CN CN202122706779.7U patent/CN218374629U/en active Active
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