CN215857320U - Assembled prestressing force UHPC orthotropic waffle slab culvert structure - Google Patents
Assembled prestressing force UHPC orthotropic waffle slab culvert structure Download PDFInfo
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- CN215857320U CN215857320U CN202121952936.6U CN202121952936U CN215857320U CN 215857320 U CN215857320 U CN 215857320U CN 202121952936 U CN202121952936 U CN 202121952936U CN 215857320 U CN215857320 U CN 215857320U
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Abstract
An assembled prestressed UHPC orthotropic waffle slab culvert structure, comprising: a cast-in-place foundation, wherein a cast-in-place bottom plate is arranged above the cast-in-place foundation, two sides of the cast-in-place bottom plate are fixedly connected with orthotropic waffle slab culvert platforms through reserved steel bars, foundation clamp grooves adapted to the orthotropic waffle slab culvert platforms are arranged above the cast-in-place foundation, and orthotropic waffle slab cover plates are simply supported and connected above the orthotropic waffle slab culvert platforms; the orthotropic waffle slab cover plate, the orthotropic waffle slab culvert platform and the cast-in-place foundation form assembled culvert sections, longitudinal seams are arranged on the culvert sections, asphalt floc is filled in the longitudinal seams, butterfly rubber waterstops are arranged between the culvert sections, and asphalt felt is wrapped outside the waterstops. 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 orthotropic waffle 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 UHPC material has good durability, and 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 orthotropic waffle 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 prestressed UHPC orthotropic waffle slab culvert structure, comprising: a cast-in-place foundation, wherein a cast-in-place bottom plate is arranged above the cast-in-place foundation, two sides of the cast-in-place bottom plate are fixedly connected with orthotropic waffle slab culvert platforms through reserved steel bars, foundation clamp grooves adapted to the orthotropic waffle slab culvert platforms are arranged above the cast-in-place foundation, and orthotropic waffle slab cover plates are simply supported and connected above the orthotropic waffle slab culvert platforms;
the orthotropic waffle slab cover plate, the orthotropic waffle slab culvert platform and the cast-in-place foundation form assembled culvert sections, longitudinal seams are arranged on the culvert sections, asphalt floc is filled in the longitudinal seams, butterfly rubber waterstops are arranged between the culvert sections, and asphalt felt is wrapped outside the waterstops.
Preferably, the culvert is composed of the orthotropic waffle slab cover plate, the orthotropic waffle slab culvert platform, the cast-in-place bottom plate and the cast-in-place foundation.
Preferably, the base clamping grooves are filled with asphalt battings.
Preferably, the culvert sections are longitudinally divided into sections which are sequentially assembled, the culvert sections are filled with asphalt batting, and asphalt felt is coated outside the culvert sections.
Preferably, the orthotropic waffle slab cover comprises: the improved structure of the waffle slab comprises a cover plate bottom plate, wherein a plurality of cover plate main ribs are arranged on the upper surface of the cover plate bottom plate, cover plate secondary ribs are arranged between every two adjacent cover plate main ribs, and supporting legs supported on an orthotropic waffle slab culvert platform are arranged on the bottom surface of the cover plate bottom plate.
Preferably, the orthotropic waffle slab culvert platform comprises: culvert platform base
The utility model has the beneficial effects that:
the structure is reasonable in design and simple and convenient to construct; the main rib of the orthotropic waffle slab cover plate in the span direction is prestressed by a tensioning method, and the secondary rib in the vertical span direction enhances the rigidity; the cover plate bottom plate is provided with support legs on the culvert platform, so that the bending moment of the cover plate part of the orthotropic waffle slab can be counteracted; the prestress is tensioned in the direction of the main rib of the culvert platform, 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 of the orthotropic waffle slab, and the rigidity is enhanced by the secondary rib; the structure only stretches pre-tensioning prestressing force without common steel bars; after the construction of the on-site base is completed, the orthotropic waffle slab cover plate and the orthotropic waffle slab culvert platform can be hoisted, and the construction is rapid; 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 diagram of an orthotropic waffle slab according to the utility model;
FIG. 4 is a diagram of the arrangement of the prestressed steel wires of the cover plate of the orthotropic waffle slab;
FIG. 5 is a schematic structural view of an orthotropic waffle slab according to the utility model;
FIG. 6 is a schematic structural diagram of an orthotropic waffle slab culvert platform according to the utility model;
FIG. 7 is a drawing showing the arrangement of the orthotropic waffle slab culvert platform prestressed wires according to the utility model;
FIG. 8 is a schematic structural diagram of an orthotropic waffle slab culvert platform according to the utility model;
reference symbol comparison table:
the structure comprises 1-orthotropic waffle slab cover plates, 2-orthotropic waffle slab culvert platforms, 2.1-culvert sections, 3-cast-in-place bottom plates, 4-cast-in-place foundations, 5-cover plate main ribs, 6-cover plate secondary ribs, 7-supporting legs, 8-cover plate bottom plates, 9-culvert platform main ribs, 10-culvert platform secondary ribs, 11-culvert platform bases, 12-culvert platform top plates and 13-longitudinal seams.
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 8, an assembled prestressed UHPC orthotropic waffle slab culvert structure comprises: a cast-in-place foundation 4, wherein a cast-in-place bottom plate 3 is arranged above the cast-in-place foundation 4, two sides of the cast-in-place bottom plate 3 are fixedly connected with an orthotropic waffle slab culvert platform 2 through reserved steel bars 15, a foundation clamping groove 14 adapted to the orthotropic waffle slab culvert platform 2 is arranged above the cast-in-place foundation 4, and an orthotropic waffle slab cover plate 1 is simply supported and connected above the orthotropic waffle slab culvert platform 2;
the orthotropic waffle slab cover plate 1, the orthotropic waffle slab culvert platform 2 and the cast-in-place foundation 4 form assembled culvert sections 2.1, longitudinal seams 13 are arranged on the culvert sections 2.1, the longitudinal seams 13 are filled with asphalt floc, butterfly rubber waterstops are arranged between the culvert sections, and asphalt felt is wrapped outside the waterstops.
The culvert is composed of the orthotropic waffle slab cover plate 1, the orthotropic waffle slab culvert platform 2, the cast-in-place bottom plate 3 and the cast-in-place foundation 4. The basic clamping groove 14 is filled with asphalt floc. The culvert sections are longitudinally divided into sections which are sequentially assembled, the culvert sections are filled with asphalt battings, and asphalt felt is coated outside the culvert sections. The orthotropic waffle slab cover plate 1 comprises: the cover plate comprises a cover plate bottom plate 8, wherein a plurality of cover plate main ribs 5 are arranged on the upper surface of the cover plate bottom plate 8, cover plate secondary ribs 6 are arranged between adjacent cover plate main ribs, and supporting legs 7 which are supported on the orthotropic waffle slab culvert platform 2 are arranged on the bottom surface of the cover plate bottom plate 8. The orthotropic waffle slab culvert platform 2 comprises: culvert platform base 11, culvert platform roof 12 is connected to culvert platform base 11 one side top fixed connection, culvert platform base 11 upper surface fixed connection a plurality of culvert platform owner rib 9 is equipped with between the adjacent culvert platform owner rib and culvert platform secondary rib 10.
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 (6)
1. An assembled prestressed UHPC orthotropic waffle slab culvert structure, characterized in that, includes: a cast-in-place foundation (4), wherein a cast-in-place bottom plate (3) is arranged above the cast-in-place foundation (4), two sides of the cast-in-place bottom plate (3) are fixedly connected with orthotropic waffle slab culvert platforms (2) through reserved steel bars (15), a foundation clamping groove (14) matched with the orthotropic waffle slab culvert platforms (2) is arranged above the cast-in-place foundation (4), and orthotropic waffle slab cover plates (1) are simply supported and connected above the orthotropic waffle slab culvert platforms (2);
orthotropic waffle slab cover plate (1), orthotropic waffle slab culvert platform (2) and cast-in-place basis (4) form and assemble culvert section (2.1), be equipped with vertical seam (13) on culvert section (2.1), pitch fibre-flax is packed in vertical seam (13), establishes butterfly rubber waterstop between the culvert section, and the pitch oil blanket is wrapped up in the waterstop outside.
2. The culvert structure of assembled prestressed UHPC orthotropic waffle slab according to claim 1, characterized in that: the culvert is formed by the orthotropic waffle slab cover plate (1), the orthotropic waffle slab culvert platform (2), the cast-in-situ bottom plate (3) and the cast-in-situ foundation (4).
3. The culvert structure of assembled prestressed UHPC orthotropic waffle slab according to claim 1, characterized in that: and asphalt floc is filled in the basic clamping groove (14).
4. The culvert structure of assembled prestressed UHPC orthotropic waffle slab according to claim 1, characterized in that: the culvert sections are longitudinally divided into sections which are sequentially assembled, the culvert sections are filled with asphalt battings, and asphalt felt is coated outside the culvert sections.
5. The culvert structure of assembled prestressed UHPC orthotropic waffle slab according to claim 1, characterized in that: the orthotropic waffle slab cover (1) comprises: the structure of the waffle slab comprises a cover plate bottom plate (8), wherein a plurality of cover plate main ribs (5) are arranged on the upper surface of the cover plate bottom plate (8), cover plate secondary ribs (6) are arranged between adjacent cover plate main ribs, and supporting legs (7) supported on an orthotropic waffle slab culvert platform (2) are arranged on the bottom surface of the cover plate bottom plate (8).
6. The culvert structure of assembled prestressed UHPC orthotropic waffle slab according to claim 1, characterized in that: the orthotropic waffle slab culvert platform (2) comprises: culvert platform base (11), culvert platform roof board (12) is connected to culvert platform base (11) one side top fixed connection, culvert platform base (11) upper surface fixed connection a plurality of culvert platform owner rib (9), is equipped with between the adjacent culvert platform owner rib and contains a platform secondary rib (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121952936.6U CN215857320U (en) | 2021-08-19 | 2021-08-19 | Assembled prestressing force UHPC orthotropic waffle slab culvert structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121952936.6U CN215857320U (en) | 2021-08-19 | 2021-08-19 | Assembled prestressing force UHPC orthotropic waffle slab culvert structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215857320U true CN215857320U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121952936.6U Active CN215857320U (en) | 2021-08-19 | 2021-08-19 | Assembled prestressing force UHPC orthotropic waffle slab culvert structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215857320U (en) |
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2021
- 2021-08-19 CN CN202121952936.6U patent/CN215857320U/en active Active
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