CN216195854U - Two-way superimposed sheet of ultra high performance concrete - Google Patents
Two-way superimposed sheet of ultra high performance concrete Download PDFInfo
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- CN216195854U CN216195854U CN202122546699.XU CN202122546699U CN216195854U CN 216195854 U CN216195854 U CN 216195854U CN 202122546699 U CN202122546699 U CN 202122546699U CN 216195854 U CN216195854 U CN 216195854U
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Abstract
The utility model provides an ultrahigh-performance concrete bidirectional laminated slab which comprises an ultrahigh-performance concrete prefabricated slab layer and a steel bar assembly, wherein the steel bar assembly comprises a steel bar truss, upper chord steel bars, lower chord steel bars, transverse steel bars and longitudinal steel bars, the steel bar truss is arranged on the upper portion of the ultrahigh-performance concrete prefabricated slab layer, the lower chord steel bars are welded at one end, close to the ultrahigh-performance concrete prefabricated slab layer, of the steel bar truss, the longitudinal steel bars are welded at the bottom of the lower chord steel bars, the transverse steel bars are welded at the bottom of the longitudinal steel bars, the lower chord steel bars are parallel to the transverse steel bars, and the lower chord steel bars, the transverse steel bars and the longitudinal steel bars are all arranged inside the ultrahigh-performance concrete prefabricated slab layer. The ultra-high performance concrete bidirectional laminated slab overcomes the defects of poor bending and bending resistance, thicker thickness, heavier weight and the like of the existing laminated slab, is convenient to hoist and transport, and can reduce loss at the same time.
Description
Technical Field
The utility model relates to the field of fabricated concrete buildings, in particular to an ultra-high performance concrete bidirectional laminated slab.
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 and high rigidity, can save templates, has smooth upper and lower surfaces, is convenient for finishing a finish coat, and is suitable for high-rise buildings and large-bay buildings with higher requirement on the integral rigidity.
The existing laminated slab mainly comprises common laminated slabs and prestressed laminated slabs, the used concrete mainly comprises common concrete of C30 and C40, and the common concrete has the characteristics that the bending resistance and the bending resistance are much lower than the compression resistance, the weight is heavier, the hoisting and the transportation are inconvenient, and the common concrete is easy to damage; the manufacturing process of the prestressed laminated slab is complex, and the early investment is large.
SUMMERY OF THE UTILITY MODEL
The utility model provides an ultra-high performance concrete bidirectional laminated slab, which solves the defects of poor bending and bending resistance, thicker thickness, heavier weight and the like of the existing laminated slab, is convenient to hoist and transport and can reduce loss at the same time.
The technical scheme adopted by the utility model is as follows:
the utility model provides an ultrahigh-performance concrete bidirectional laminated slab which comprises an ultrahigh-performance concrete prefabricated slab layer and a steel bar assembly, wherein the steel bar assembly comprises a steel bar truss, upper chord steel bars, lower chord steel bars, transverse steel bars and longitudinal steel bars, the steel bar truss is arranged on the upper portion of the ultrahigh-performance concrete prefabricated slab layer, the lower chord steel bars are welded at one end, close to the ultrahigh-performance concrete prefabricated slab layer, of the steel bar truss, the longitudinal steel bars are welded at the bottom of the lower chord steel bars, the transverse steel bars are welded at the bottom of the longitudinal steel bars, the lower chord steel bars are parallel to the transverse steel bars, and the lower chord steel bars, the transverse steel bars and the longitudinal steel bars are all arranged inside the ultrahigh-performance concrete prefabricated slab layer.
Further, the steel bar truss comprises a first web member steel bar, a second web member steel bar, a third web member steel bar and a fourth web member steel bar, one end of the first web member steel bar, one end of the second web member steel bar, one end of the third web member steel bar and one end of the fourth web member steel bar are welded to the same point of the upper chord steel bar, the other end of the first web member steel bar and the other end of the third web member steel bar are respectively welded to the lower chord steel bar, and the other end of the second web member steel bar and the other end of the fourth web member steel bar are respectively welded to the lower chord steel bar adjacent to each other.
Further, the thickness of the ultra-high performance concrete precast slab layer is 20-30mm, galling is arranged on the upper surface of the ultra-high performance concrete precast slab layer, and the length of the galling is larger than or equal to 6 mm.
Further, the transverse reinforcing steel bars and the longitudinal reinforcing steel bars are of wave-shaped and/or threaded structures.
Further, the surface of first web member reinforcing bar, the surface of second web member reinforcing bar, the surface of third web member reinforcing bar, the surface of fourth web member reinforcing bar are the helicitic texture.
Furthermore, the diameters of the first web member reinforcing steel bar, the second web member reinforcing steel bar, the third web member reinforcing steel bar and the fourth web member reinforcing steel bar are 6-8 mm.
Furthermore, the diameters of the upper chord steel bar, the lower chord steel bar, the transverse steel bar and the longitudinal steel bar are 8-12 mm.
Further, the length of the lower chord steel bar is smaller than that of the transverse steel bar.
Further, the distance between two adjacent longitudinal steel bars is 350-450mm, and two ends of the longitudinal steel bars do not extend out of two sides of the ultrahigh-performance concrete precast slab layer.
Further, the distance between two adjacent transverse steel bars is 350-450 mm.
Due to the adoption of the technical method, the utility model has the following technical effects:
the laminated slab is produced by using the ultra-high performance concrete, the arrangement form of the reinforcing steel bars is optimized, the thickness of the laminated slab is controlled to be 20-30mm according to different spans, the thickness of the laminated slab is reduced from 60mm to 20-30mm, the weight is reduced to be close to 2/5, the consumption of the reinforcing steel bars is saved by 1/3, the defects that the existing laminated slab is poor in bending and bending resistance, thick in thickness, heavy in weight and the like are overcome, the hoisting and the transportation are convenient, and meanwhile, the loss can be reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a steel bar truss structure according to the present invention;
1-prefabricating a slab layer by using ultrahigh-performance concrete; 2-steel bar truss; 3-upper chord steel bars; 4-lower chord steel bars; 5-first web member reinforcing steel bars; 6-second web member steel bars; 7-third web member steel bars; 8-a fourth web member reinforcing bar; 9-transverse steel bars; 10-longitudinal steel bars.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
The utility model provides a two-way superimposed sheet of ultra high performance concrete, as shown in fig. 1 and fig. 2, includes ultra high performance concrete precast slab layer 1 and reinforcing bar subassembly, the reinforcing bar subassembly includes steel bar truss 2, last chord steel 3, last chord steel 4, horizontal reinforcing bar 9 and longitudinal reinforcement 10, steel bar truss 2 sets up ultra high performance concrete precast slab layer 1 upper portion.
The steel bar truss 2 comprises a first web member steel bar 5, a second web member steel bar 6, a third web member steel bar 7 and a fourth web member steel bar 8, one end of the first web member steel bar 5, one end of the second web member steel bar 6, one end of the third web member steel bar 7 and one end of the fourth web member steel bar 8 are welded at the same point of the upper chord steel bar 3, the other end of the first web member steel bar 5 and the other end of the third web member steel bar 7 are respectively welded with the same lower chord steel bar 4, the other end of the second web member steel bar 6 and the other end of the fourth web member steel bar 8 are respectively welded with the other adjacent lower chord steel bar 4, the bottom of the lower chord steel bar 4 is welded with the longitudinal steel bar 10, the bottom of the longitudinal steel bar 10 is welded with the transverse steel bar 9, the lower chord steel bar 4 is parallel to the transverse steel bar 9, and the length of the lower chord steel bar 4 is smaller than that of the transverse steel bar 9, the lower chord steel bars 4, the transverse steel bars 9 and the longitudinal steel bars 10 are all arranged inside the ultra-high performance concrete precast slab layer 1, and two ends of the longitudinal steel bars 10 do not extend out of two sides of the ultra-high performance concrete precast slab layer 1.
The figure of lower chord reinforcing bar 4 is 8, adjacent two interval between the longitudinal reinforcement 10 is 400mm, adjacent two interval between the transverse reinforcement 9 is 400mm, transverse reinforcement 9 with the longitudinal reinforcement 10 is the wave type.
The thickness of the ultra-high performance concrete precast slab layer 1 is 20-30mm, galling is arranged on the upper surface of the ultra-high performance concrete precast slab layer 1, and the galling length is more than or equal to 6 mm.
First web member reinforcing bar 5 second web member reinforcing bar 6 third web member reinforcing bar 7 with the diameter of fourth web member reinforcing bar 8 is 6-8mm, the surface of first web member reinforcing bar 5 the surface of second web member reinforcing bar 6 the surface of third web member reinforcing bar 7 the surface of fourth web member reinforcing bar 8 is the helicitic texture.
The diameters of the upper chord steel bars 3, the lower chord steel bars 4, the transverse steel bars 9 and the longitudinal steel bars 10 are 8-12 mm.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An ultra-high performance concrete bidirectional composite slab comprises an ultra-high performance concrete precast slab layer (1) and a steel bar component, it is characterized in that the steel bar component comprises a steel bar truss (2), an upper chord steel bar (3), a lower chord steel bar (4), a transverse steel bar (9) and a longitudinal steel bar (10), the steel bar truss (2) is arranged at the upper part of the ultrahigh-performance concrete precast slab layer (1), one end of the steel bar truss (2) close to the ultra-high performance concrete precast slab layer (1) is welded with the lower chord steel bar (4), the bottom of the lower chord steel bar (4) is welded with the longitudinal steel bar (10), the bottom of the longitudinal steel bar (10) is welded with the transverse steel bar (9), the lower chord steel bars (4) are parallel to the transverse steel bars (9), and the lower chord steel bars (4), the transverse steel bars (9) and the longitudinal steel bars (10) are arranged inside the ultrahigh-performance concrete precast slab layer (1).
2. The ultra-high performance concrete two-way composite slab as claimed in claim 1, wherein the steel bar truss (2) comprises a first web member steel bar (5), a second web member steel bar (6), a third web member steel bar (7) and a fourth web member steel bar (8), one end of the first web member steel bar (5), one end of the second web member steel bar (6), one end of the third web member steel bar (7) and one end of the fourth web member steel bar (8) are welded to the same point of the upper chord steel bar (3), the other end of the first web member steel bar (5) and the other end of the third web member steel bar (7) are respectively welded to the same lower chord steel bar (4), and the other end of the second web member steel bar (6) and the other end of the fourth web member steel bar (8) are respectively welded to another adjacent lower chord steel bar (4).
3. The ultra-high performance concrete bidirectional laminated slab as claimed in claim 2, wherein the thickness of the ultra-high performance concrete precast slab layer (1) is 20-30mm, the upper surface of the ultra-high performance concrete precast slab layer (1) is provided with a galling, and the length of the galling is greater than or equal to 6 mm.
4. An ultra high performance concrete bi-directional superimposed slab as claimed in claim 3, wherein said transverse reinforcement (9) and said longitudinal reinforcement (10) are of wave type and/or screw thread structure.
5. The ultra-high performance concrete two-way composite slab as claimed in claim 4, wherein the outer surfaces of the first web member reinforcing bars (5), the second web member reinforcing bars (6), the third web member reinforcing bars (7) and the fourth web member reinforcing bars (8) are screw structures.
6. The ultra-high performance concrete bidirectional laminated slab as claimed in claim 5, wherein the first, second, third and fourth web member reinforcing bars (5, 6, 7, 8) have a diameter of 6-8 mm.
7. The ultra-high performance concrete two-way composite slab as claimed in claim 6, wherein the diameters of the upper chord steel bar (3), the lower chord steel bar (4), the transverse steel bar (9) and the longitudinal steel bar (10) are 8-12 mm.
8. An ultra high performance concrete double faced plywood as claimed in claim 7, wherein said lower chord reinforcement (4) has a length less than that of said transverse reinforcement (9).
9. The ultra-high performance concrete two-way composite slab as claimed in claim 8, wherein the distance between two adjacent longitudinal steel bars (10) is 350-450mm, and both ends of the longitudinal steel bars (10) are not protruded from both sides of the ultra-high performance concrete precast slab layer (1).
10. The ultra-high performance concrete two-way composite slab as claimed in claim 9, wherein the distance between two adjacent transverse reinforcing steel bars (9) is 350-450 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122546699.XU CN216195854U (en) | 2021-10-21 | 2021-10-21 | Two-way superimposed sheet of ultra high performance concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122546699.XU CN216195854U (en) | 2021-10-21 | 2021-10-21 | Two-way superimposed sheet of ultra high performance concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216195854U true CN216195854U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122546699.XU Active CN216195854U (en) | 2021-10-21 | 2021-10-21 | Two-way superimposed sheet of ultra high performance concrete |
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| Country | Link |
|---|---|
| CN (1) | CN216195854U (en) |
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2021
- 2021-10-21 CN CN202122546699.XU patent/CN216195854U/en active Active
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