CN215857322U - Assembled prestressing force UHPC concrete pole truss superimposed sheet culvert structure - Google Patents
Assembled prestressing force UHPC concrete pole truss superimposed sheet culvert structure Download PDFInfo
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- CN215857322U CN215857322U CN202121986784.1U CN202121986784U CN215857322U CN 215857322 U CN215857322 U CN 215857322U CN 202121986784 U CN202121986784 U CN 202121986784U CN 215857322 U CN215857322 U CN 215857322U
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Abstract
The utility model discloses an assembled prestressed UHPC concrete pole truss laminated slab culvert structure, which comprises: the cast-in-place foundation comprises a cast-in-place foundation, wherein a post-cast bottom plate is arranged above the cast-in-place foundation, two sides of the post-cast bottom plate are fixedly connected with a UHPC waffle slab culvert platform through culvert platform reserved steel bars, and a cover plate is connected above the UHPC waffle slab culvert platform through shear pins; a foundation clamping groove for clamping a UHPC waffle slab culvert platform is arranged above the cast-in-place foundation; the cover plate, the UHPC waffle slab culvert platform and the cast-in-place foundation form an assembled culvert section, culvert section joints are arranged on the culvert section and filled with asphalt floc, a butterfly rubber waterstop is arranged between the culvert sections, and asphalt felt is wrapped outside the waterstop. The structure design is reasonable, the construction is simple and convenient, the prefabricated production and the on-site assembly are adopted, the construction quality can be effectively ensured, and the construction period is shortened.
Description
Technical Field
The utility model relates to the technical field of culvert construction, in particular to an assembled prestressed UHPC concrete rod truss laminated slab culvert structure.
Background
In the highway bridge and culvert structure, the culvert has the characteristics of large quantity and wide distribution, and is a small structure with the functions of drainage, channels and the like. The construction progress and the construction quality of the whole highway are related to the construction period and the quality of the whole highway.
At present, culverts newly built, reconstructed and lengthened on roads are constructed in a cast-in-place mode, construction points are scattered, construction conditions are not uniform, a structure construction process is not easy to control, and the structure quality is difficult to guarantee in the cast-in-place and maintenance processes; in addition, the field construction is influenced by weather, terrain, concrete age, material transportation and the like, and the construction progress is slow. Therefore, the quality of the structure can be guaranteed by adopting standardized design, prefabricated production and field assembly technology, the construction progress is promoted, and the environmental pollution is reduced.
The prefabricated culvert of tradition is mostly concrete structure, receives the material bearing capacity, and influence such as concrete aggregate particle diameter, structure cross-sectional dimension is great, leads to the structure from great, and the scene is assembled more difficultly, assembles the not easily controlled of precision. The arch culvert structure adopts the UHPC material, so that the arch culvert structure has high bearing capacity and good crack resistance; the particle size of the material is far smaller than that of common concrete, so that the section size is reduced, the structure dead weight is reduced, the field installation is convenient, and the precision is high.
The traditional laminated slab needs to be provided with a concrete shear key so as to lead the first-stage concrete and the second-stage concrete to bear force together, and the structure is complex; in order to bear the wet weight of the second-stage concrete in construction, the size of the first-stage base plate cannot be too small, and the material consumption is large. Therefore, the prestressed UHPC concrete rod truss laminated plate structure is provided, the rigidity of the first-stage structure is improved by using the UHPC concrete rods, and temporary support during construction is reduced. In addition, the UHPC material has good durability, and the material can be widely applied to severe environments such as freeze thawing, corrosion and the like.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the prefabricated prestressed UHPC concrete rod truss laminated slab culvert structure which is reasonable in structural design and simple and convenient to construct, adopts prefabricated production and field assembly, can effectively ensure the construction quality and shortens the construction period.
In order to achieve the purpose of the utility model, the utility model adopts the technical scheme that:
an assembled prestressing force UHPC concrete pole truss superimposed sheet culvert structure includes: the cast-in-place foundation comprises a cast-in-place foundation, wherein a post-cast bottom plate is arranged above the cast-in-place foundation, two sides of the post-cast bottom plate are fixedly connected with a UHPC waffle slab culvert platform through culvert platform reserved steel bars, and a cover plate is connected above the UHPC waffle slab culvert platform through shear pins;
a foundation clamping groove for clamping a UHPC waffle slab culvert platform is arranged above the cast-in-place foundation;
the cover plate, the UHPC waffle slab culvert platform and the cast-in-place foundation form an assembled culvert section, culvert section joints are arranged on the culvert section and filled with asphalt floc, a butterfly rubber waterstop is arranged between the culvert sections, and asphalt felt is wrapped outside the waterstop.
Preferably, the cover plate, the UHPC waffle slab culvert platform, the post-cast bottom plate and the cast-in-place foundation form the culvert.
Preferably, the cover plate is a prestressed UHPC concrete bar truss composite slab, and the cover plate includes: the first-stage bottom plate is fixed below the second-stage post-casting plate, a truss concrete rod is arranged above the first-stage bottom plate, a plurality of truss inclined rods are fixedly connected below the truss concrete rod, and the bottom ends of the truss inclined rods are fixedly connected with the first-stage bottom plate.
Preferably, the UHPC waffle slab culvert platform comprises a foundation base, a culvert platform top plate is fixedly connected above one side of the foundation base, a plurality of culvert platform main ribs are arranged on the upper surface of the foundation base, a plurality of culvert platform secondary ribs are arranged between adjacent culvert platform main ribs, and shear pins are arranged on the culvert platform top plate.
Preferably, the cover plate, the UHPC waffle slab culvert platform and the foundation clamping groove are filled with asphalt batting, and asphalt felt is wrapped outside the longitudinal culvert joint.
The utility model has the beneficial effects that:
1. the engineering prefabrication and the construction quality are easy to guarantee.
2. The structure design is reasonable, and the construction is simple and convenient. The cover plate is a prestressed UHPC concrete rod truss composite plate, the base plate is prestressed in a tensioning mode in the first period, and the whole section is pressed. The first-stage bottom plate is provided with the UHPC concrete rod truss so as to improve the overall height of the member and further improve the bearing capacity of the first-stage bottom plate. Meanwhile, the concrete rod truss can be used as a connecting shear key of first-stage and second-stage concrete. The compression bottom plate has certain deformation capacity, and is combined with the concrete rod truss, so that the structural deformation elastic deformation capacity is increased, and the transportation and the installation are convenient.
The prestressed tension is applied to the main rib of the culvert platform in the direction, the bottom end of the main rib adopts a variable cross section to resist the reverse bending moment caused by the bias of the cover plate, and the secondary rib strengthens the rigidity. The structure only stretches the pretensioning prestressing force without common steel bars. The cover plate culvert platform can be hoisted after the construction of the site base is finished, and the construction is quick.
3. The structure has good durability and can be used under severe environmental conditions. The UHPC material has the characteristic of corrosion resistance, so that the structure can be used under severe environmental conditions such as strong freeze thawing, strong corrosion and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the vertical face of the culvert of the present invention;
FIG. 3 is a schematic structural view of a first-stage bottom plate of the culvert cover plate of the present invention;
FIG. 4 is a schematic structural view of the composite cover plate of the culvert cover plate of the present invention;
FIG. 5 is a schematic structural view of a culvert platform of the present invention;
FIG. 6 is a structural view of the culvert of the present invention.
Reference symbol comparison table:
1-cover plate, 2-UHPC waffle slab culvert platform, 3-post-cast bottom plate, 4-cast-in-place foundation, 5-shear pin, 6-foundation clamping groove, 7-culvert platform reserved steel bar, 8-truss concrete rod, 9-first-stage bottom plate, 10-truss diagonal rod, 11-culvert platform main rib, 12-culvert platform secondary rib, 13-culvert platform top plate, 14-foundation base, 15-culvert section seam, 16-culvert section and 17-second-stage post-cast plate.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1 to 6, a fabricated prestressed UHPC concrete pole truss laminated slab culvert structure, comprising: a cast-in-place foundation 4, wherein a post-cast bottom plate 3 is arranged above the cast-in-place foundation 4, two sides of the post-cast bottom plate 3 are fixedly connected with a UHPC waffle slab culvert platform 2 through culvert platform reserved steel bars 7, and a cover plate 1 is connected above the UHPC waffle slab culvert platform 2 through a shear pin 5;
a foundation clamping groove 6 for clamping the UHPC waffle slab culvert platform 2 is arranged above the cast-in-place foundation 4;
the cover plate 1, the UHPC waffle slab culvert platform 2 and the cast-in-place foundation 4 form an assembled culvert section 16, culvert section joints 15 are arranged on the culvert section 16, asphalt floc is filled in the culvert section joints 15, butterfly rubber waterstops are arranged between the culvert sections, and asphalt felt is wrapped outside the waterstops.
The culvert is formed by the cover plate 1, the UHPC waffle slab culvert platform 2, the post-cast bottom plate 3 and the cast-in-place foundation 4. The apron 1 is prestressing force UHPC concrete pole truss superimposed sheet, apron 1 includes: the post-cast roof comprises a first-stage bottom plate 9 and a second-stage post-cast plate 17, wherein the first-stage bottom plate 9 is fixed above the second-stage post-cast plate 17, a truss concrete rod 8 is arranged above the first-stage bottom plate 9, a plurality of truss inclined rods 10 are fixedly connected below the truss concrete rod 8, and the bottom ends of the truss inclined rods 10 are fixedly connected with the first-stage bottom plate 9. The UHPC waffle slab culvert platform 2 comprises a foundation base 14, a culvert platform top plate 13 is fixedly connected above one side of the foundation base 14, a plurality of culvert platform main ribs 11 are arranged on the upper surface of the foundation base 14, a plurality of culvert platform secondary ribs 12 are arranged between adjacent culvert platform main ribs, and shear pins 5 are arranged on the culvert platform top plate 13. And asphalt batting is adopted between the cover plate 1, the UHPC waffle slab culvert platform 2 and the foundation clamping groove 6 for filling, and asphalt felt is wrapped outside a longitudinal culvert joint.
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 present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides an assembled prestressing force UHPC concrete pole truss superimposed sheet culvert structure which characterized in that includes: the structure comprises a cast-in-place foundation (4), wherein a post-cast bottom plate (3) is arranged above the cast-in-place foundation (4), two sides of the post-cast bottom plate (3) are fixedly connected with a UHPC waffle slab culvert platform (2) through culvert platform reserved steel bars (7), and a cover plate (1) is connected above the UHPC waffle slab culvert platform (2) through a shear pin (5);
a foundation clamping groove (6) clamped with the UHPC waffle slab culvert platform (2) is arranged above the cast-in-place foundation (4);
the assembled culvert sections (16) are formed by the cover plate (1), the UHPC waffle slab culvert platform (2) and the cast-in-place foundation (4), culvert section joints (15) are arranged on the culvert sections (16), asphalt bast fibers are filled in the culvert section joints (15), butterfly rubber waterstops are arranged between the culvert sections, and asphalt felt is wrapped outside the waterstops.
2. The fabricated prestressed UHPC concrete pole truss composite slab culvert structure of claim 1, characterized in that: the culvert is formed by the cover plate (1), the UHPC waffle slab culvert platform (2), the post-cast bottom plate (3) and the cast-in-place foundation (4).
3. The fabricated prestressed UHPC concrete pole truss composite slab culvert structure of claim 1, characterized in that: the cover plate (1) is a prestressed UHPC concrete rod truss composite slab, and the cover plate (1) comprises: first stage bottom plate (9) and second stage post-cast plate (17), first stage bottom plate (9) are fixed in second stage post-cast plate (17) below, first stage bottom plate (9) top is equipped with truss concrete pole (8), a plurality of truss down tube (10) of truss concrete pole (8) below fixed connection, truss down tube (10) bottom fixed connection first stage bottom plate (9).
4. The fabricated prestressed UHPC concrete pole truss composite slab culvert structure of claim 1, characterized in that: the UHPC waffle slab culvert platform (2) comprises a foundation base (14), a culvert platform top plate (13) is fixedly connected above one side of the foundation base (14), a plurality of culvert platform main ribs (11) are arranged on the upper surface of the foundation base (14), a plurality of culvert platform secondary ribs (12) are arranged between every two adjacent culvert platform main ribs, and shear pins (5) are arranged on the culvert platform top plate (13).
5. The fabricated prestressed UHPC concrete pole truss composite slab culvert structure of claim 1, characterized in that: asphalt batting is adopted among the cover plate (1), the UHPC waffle slab culvert platform (2) and the foundation clamping groove (6) to fill, and asphalt felt is wrapped outside a longitudinal culvert joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121986784.1U CN215857322U (en) | 2021-08-23 | 2021-08-23 | Assembled prestressing force UHPC concrete pole truss superimposed sheet culvert structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121986784.1U CN215857322U (en) | 2021-08-23 | 2021-08-23 | Assembled prestressing force UHPC concrete pole truss superimposed sheet culvert structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215857322U true CN215857322U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121986784.1U Active CN215857322U (en) | 2021-08-23 | 2021-08-23 | Assembled prestressing force UHPC concrete pole truss superimposed sheet culvert structure |
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| Country | Link |
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| CN (1) | CN215857322U (en) |
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2021
- 2021-08-23 CN CN202121986784.1U patent/CN215857322U/en active Active
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