CN215858485U - Two-way ribbed steel bar truss prestressed concrete superimposed sheet - Google Patents
Two-way ribbed steel bar truss prestressed concrete superimposed sheet Download PDFInfo
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- CN215858485U CN215858485U CN202121785996.3U CN202121785996U CN215858485U CN 215858485 U CN215858485 U CN 215858485U CN 202121785996 U CN202121785996 U CN 202121785996U CN 215858485 U CN215858485 U CN 215858485U
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Abstract
The utility model discloses a bidirectional ribbed steel bar truss prestressed concrete laminated slab which comprises a concrete bottom plate and a concrete upper flange, wherein the concrete upper flange is connected with the concrete bottom plate through a truss steel bar frame. Has the advantages that: the transverse steel bar truss can be used as a lifting point in the first scheme, no additional lifting point is needed, lifting cannot be damaged, and the concrete flanges form a whole in the second scheme, so that the rigidity of the slab is enhanced; temporary support is not needed to be arranged in the construction stage, labor cost, formwork cost and measure cost in the construction stage are effectively reduced, and pipelines can be conveniently penetrated in the construction process. When the truss reinforcing steel bar frame adopts the inverted triangular truss, the upper chord reinforcing steel bar of the truss can replace the original longitudinal and transverse structural reinforcing steel bars of the concrete flange, the production efficiency is improved, the lower chord reinforcing steel bar of the truss can provide certain bearing capacity for the laminated slab, and the safety storage of the laminated slab is improved.
Description
Technical Field
The utility model relates to the technical field of concrete composite slabs, in particular to a bidirectional ribbed steel bar truss prestressed concrete composite slab.
Background
The utility model belongs to the technical field of building profiles and discloses a bidirectional steel bar truss ribbed prestressed concrete composite slab which comprises a prefabricated bottom plate, a steel bar truss and a concrete upper flange, wherein the concrete upper flange is connected with the prefabricated bottom plate through the steel bar truss. The utility model adopts the steel bar truss, the steel bar truss is connected with the upper flange of the concrete into a whole and then is poured with the bottom plate to form a whole, the production efficiency of the composite slab is improved, the existence of the steel bar truss is convenient for the pipeline to penetrate during construction, the hoisting is convenient, the composite slab has large rigidity and high bearing capacity, no scaffold is required to be erected in the 4.2m span of the construction stage, and the labor cost, the measure cost and the template cost are effectively saved. The truss reinforced concrete composite slab has the advantages of heavy self weight, small rigidity and easy occurrence of cracks in the transportation and hoisting processes, and supports are required to be arranged within 1.8m of span in the construction stage; the flexural rigidity that grout steel pipe truss prestressed concrete superimposed sheet can provide is limited, and every 2.1m during the construction need set up interim support, and because its rigidity is less, the crack appears easily in the bottom plate lower part during hoist and mount transportation, influences superimposed sheet quality.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the related art, the utility model provides a bidirectional ribbed steel bar truss prestressed concrete laminated slab to overcome the technical problems in the prior related art.
Therefore, the utility model adopts the following specific technical scheme:
the bidirectional ribbed steel bar truss prestressed concrete laminated slab comprises a concrete bottom plate and a concrete upper flange, wherein the concrete upper flange is connected with the concrete bottom plate through a truss steel bar frame.
Preferably, the truss reinforcing frame comprises an upper chord reinforcing steel bar, a lower chord reinforcing steel bar and a diagonal web reinforcing steel bar which are welded to form a single truss reinforcing frame.
Preferably, the lower chord steel bar and the concrete upper flange of the truss steel bar frame are cast together.
Preferably, the concrete composite slab is formed by anchoring the lower chord steel bar of the truss steel bar frame into the concrete bottom plate.
Preferably, the concrete composite slab is a concrete slab with prestressed wires and transversely distributed reinforcing steel bars arranged inside.
Preferably, the concrete laminated slab is made of C40 concrete, and the prestressed steel wires are 1570-grade phi H5 stress-relieving spiral rib steel wires.
Preferably, the length of the concrete bottom plate is 2100-.
The utility model has the beneficial effects that: the transverse steel bar truss can be used as a lifting point in the first scheme, no additional lifting point is needed, lifting cannot be damaged, and the concrete flanges form a whole in the second scheme, so that the rigidity of the slab is enhanced; temporary support is not needed to be arranged in the construction stage, labor cost, formwork cost and measure cost in the construction stage are effectively reduced, and pipelines can be conveniently penetrated in the construction process. When the truss reinforcing steel bar frame adopts the inverted triangular truss, the upper chord reinforcing steel bar of the truss can replace the original longitudinal and transverse structural reinforcing steel bars of the concrete flange, the production efficiency is improved, the lower chord reinforcing steel bar of the truss can provide certain bearing capacity for the laminated slab, and the safety storage of the laminated slab is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a bidirectional ribbed steel bar truss prestressed concrete composite slab according to an embodiment of the utility model;
FIG. 2 is a top view of a two-way ribbed steel truss prestressed concrete composite slab according to an embodiment of the present invention;
FIG. 3 is a side view of a bi-directional ribbed steel truss prestressed concrete composite slab according to an embodiment of the present invention;
figure 4 is a side view of a composite slab of a bidirectional ribbed steel truss prestressed concrete composite slab according to an embodiment of the present invention.
FIG. 5 is one of the schematic structural views in embodiment 3 of the present invention;
fig. 6 is a second schematic structural diagram in embodiment 3 of the present invention.
In the figure:
1. a concrete floor; 2. a concrete upper flange; 3. a truss reinforcement cage.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to an embodiment of the utility model, a bidirectional ribbed steel bar truss prestressed concrete composite slab is provided.
The first embodiment;
as shown in fig. 1 to 4, the bidirectional ribbed steel truss prestressed concrete composite slab according to the embodiment of the present invention includes a concrete base slab 1 and a concrete upper flange 2, and the concrete upper flange 2 is connected to the concrete base slab 1 through a truss reinforcement 3.
Example two;
as shown in fig. 1-4, the concrete floor slab comprises a concrete floor slab 1 and a concrete top flange 2 located on the concrete top flange, the concrete top flange 2 is connected with the concrete floor slab 1 through a truss steel frame 3, the truss steel frame 3 comprises an upper chord steel, a lower chord steel and a diagonal web steel which are welded to form a single truss steel frame, the lower chord steel of the truss steel frame 3 and the concrete top flange 2 are cast together and anchored into the concrete floor slab 1 through the lower chord steel of the truss steel frame 3 to form a concrete composite slab, the concrete composite slab is a concrete slab with prestressed wires and transversely distributed steel bars inside, the concrete composite slab is made of C40 concrete, the prestressed wires are helical ribbed steel wires with stress relieving phi H5 of 1570 level, the length of the concrete floor slab 1 is 2100 mm and the width is 1000 mm 2400mm, the thickness is 35-45mm, and the lengths of the truss reinforcing steel frame 3 and the concrete upper flange 2 are 2100-6600 mm.
Example three;
as shown in the figures 5-6 of the drawings,
the reinforced concrete composite slab comprises a concrete bottom plate 1 and a concrete top flange 2 positioned on the concrete top flange, wherein the concrete top flange 2 is connected with the concrete bottom plate 1 through a truss steel bar frame 3, the reinforced bar truss 3 comprises an upper chord steel bar, two lower chord steel bars and an inclined web rib which are welded to form a single truss steel bar frame, the two lower chord steel bars of the reinforced bar truss 3 and the concrete top flange 2 are cast together to form the superstructure, the superstructure is anchored into the bottom plate through the lower chord steel bars of the truss steel bar frame 3 to form the reinforced truss ribbed prestressed concrete composite slab, the concrete top flanges 2 in the two superstructures are connected through an additional reinforced bar truss 3, the lower chord steel bars of the reinforced bar truss 3 and the concrete top flange 2 are cast together, the transverse and longitudinal concrete top flanges are cast together 2, and the concrete bottom plate 1 is a concrete slab with prestressed wires and transversely distributed steel bars arranged inside, the concrete slab is made of C40 concrete, the prestressed steel wire is 1570-grade phi H5 stress-relieving spiral rib steel wire, the length of the concrete bottom plate 1 is 2100-6600mm, the width is 1000-2400mm, the thickness is 35-45mm, and the lengths of the steel bar truss 3 and the concrete upper flange 2 are 2100-6600 mm.
In conclusion, by means of the technical scheme of the utility model, the bending rigidity is high, the bearing capacity is high, the hoisting and the transportation are convenient, the transverse steel bar truss in the scheme I can be used as a hoisting point, no additional hoisting point is needed, the hoisting cannot be damaged, and the concrete flanges in the scheme II form a whole to enhance the rigidity of the plate; temporary support is not needed to be arranged in the construction stage, labor cost, formwork cost and measure cost in the construction stage are effectively reduced, and pipelines can be conveniently penetrated in the construction process. When the truss reinforcing steel bar frame adopts the inverted triangular truss, the upper chord reinforcing steel bar of the truss can replace the original longitudinal and transverse structural reinforcing steel bars of the concrete flange, the production efficiency is improved, the lower chord reinforcing steel bar of the truss can provide certain bearing capacity for the laminated slab, and the safety storage of the laminated slab is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The bidirectional ribbed steel bar truss prestressed concrete laminated slab is characterized by comprising a concrete bottom plate (1) and a concrete upper flange (2), wherein the concrete upper flange (2) is connected with the concrete bottom plate (1) through a truss steel bar frame (3).
2. A bi-directional ribbed steel truss prestressed concrete composite slab as claimed in claim 1, wherein said truss reinforcing frame (3) comprises upper chord reinforcing bars, lower chord reinforcing bars and diagonal web reinforcing bars which are welded to form a single truss reinforcing frame.
3. A bi-directional ribbed steel truss prestressed concrete composite slab as claimed in claim 2, wherein said lower chord steel of said truss reinforcement cage (3) and said concrete upper flange (2) are cast together.
4. A bi-directional ribbed steel truss prestressed concrete composite slab as claimed in claim 3, wherein said concrete composite slab is formed by anchoring the lower chord steel of said truss steel frame (3) into said concrete bottom plate (1).
5. The bidirectional ribbed steel truss prestressed concrete composite slab as claimed in claim 1, wherein said concrete composite slab is a concrete slab having prestressed wires and laterally distributed reinforcing bars disposed therein.
6. The bidirectional ribbed steel truss prestressed concrete composite slab of claim 5, wherein said concrete composite slab is C40 concrete, and said prestressed steel wire is 1570 grade Phi H5 stress-relieving spiral ribbed steel wire.
7. The prestressed concrete composite slab with the two-way ribbed steel bar truss as claimed in claim 6, wherein the length of the concrete bottom plate (1) is 2100-6600mm, the width is 1000-2400mm, the thickness is 35-45mm, and the lengths of the truss reinforcing steel frame (3) and the concrete upper flange (2) are 2100-6600 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121785996.3U CN215858485U (en) | 2021-08-03 | 2021-08-03 | Two-way ribbed steel bar truss prestressed concrete superimposed sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121785996.3U CN215858485U (en) | 2021-08-03 | 2021-08-03 | Two-way ribbed steel bar truss prestressed concrete superimposed sheet |
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| Publication Number | Publication Date |
|---|---|
| CN215858485U true CN215858485U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121785996.3U Active CN215858485U (en) | 2021-08-03 | 2021-08-03 | Two-way ribbed steel bar truss prestressed concrete superimposed sheet |
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| Country | Link |
|---|---|
| CN (1) | CN215858485U (en) |
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2021
- 2021-08-03 CN CN202121785996.3U patent/CN215858485U/en active Active
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