Pier beam consolidation structure of steel box girder bridge

Abstract

The utility model discloses a pier beam consolidation structure of a steel box girder bridge, which belongs to the technical field of bridge engineering and comprises a pier, a cover beam is arranged at the upper end of the pier, a steel box girder bottom plate is arranged at the upper end of the cover beam, a plurality of bottom plate stiffening ribs are arranged on the surface of the top end of the steel box girder bottom plate, and a steel box girder web is arranged at the upper end of the steel box girder bottom plate. A steel box girder top plate is arranged at the upper end of the steel box girder web, a plurality of top plate stiffening ribs are arranged on the surface of the bottom end of the steel box girder top plate, a lower YGM anchorage device is arranged at the bottom end of the cover beam, an anchorage device protection assembly is arranged on the surface of the lower YGM anchorage device, and deformed steel bars are arranged at the upper end of the lower YGM anchorage device; the upper YGM anchorage device and the lower YGM anchorage device are arranged, the threaded steel and the bottom plate stiffening ribs are arranged between the upper YGM anchorage device and the lower YGM anchorage device, the connection strength between the cover beam at the upper end of the pier and the steel box beam web is enhanced, the stress effect is optimized, the cover beam is prevented from being damaged, the service life of equipment is prolonged, and the supporting strength of the pier is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge engineering, and in particular relates to a pier-beam consolidation structure of a steel box girder bridge. Background Art

[0002] A box-section beam bridge refers to a beam bridge whose main beam is a thin-walled closed section. It usually uses a long hollow truss made of steel or concrete as the crossbeam, which makes the bridge light and strong. The bridge built using this method is called a box beam bridge. The upper structure uses an orthogonal anisotropic plate composed of steel plates welded with longitudinal and transverse ribs as the bridge deck. The box beam bridge can reduce the weight of the bridge and achieve economic effects. It is mostly used in large-span steel bridges.

[0003] The existing steel box girder bridge pier-beam consolidation structure has poor supporting strength and poor load-bearing capacity, which cannot guarantee long-term stable use. It also has poor protection effect on exposed anchors, which are prone to falling, affecting the quality of equipment use and reducing the strength of the consolidation pier. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a pier-beam consolidation structure of a steel box girder bridge, which has the characteristics of high service strength and good anchor protection effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pier-beam consolidation structure of a steel box girder bridge, comprising a bridge pier, a cap beam is provided at the upper end of the bridge pier, a steel box girder bottom plate is provided at the upper end of the cap beam, a plurality of bottom plate stiffening ribs are provided on the top surface of the steel box girder bottom plate, a steel box girder web is provided at the upper end of the steel box girder bottom plate, a steel box girder top plate is provided at the upper end of the steel box girder web plate, a plurality of top plate stiffening ribs are provided on the bottom end surface of the steel box girder top plate, and a lower plate stiffening rib is provided at the lower end of the cap beam. YGM anchor, the surface of the lower YGM anchor is provided with an anchor protection component, the upper end of the lower YGM anchor is provided with threaded steel bars, the surface of the threaded steel bars is provided with a vertical prestressed tendon corrugated pipe, the top of the threaded steel bars is provided with an upper YGM anchor, an anchor plate is provided on one side of the steel box girder web corresponding to the upper YGM anchor, a prestressed pipe body is provided between the anchor plate and the bottom plate of the steel box girder, limiting steel plates are provided on both sides of the bottom plate of the steel box girder, and a mortar leveling layer is provided on the upper end of the limiting steel plate.

[0006] Preferably, a prestressed pipe connection joint is provided inside the bottom plate of the steel box beam corresponding to the prestressed pipe body.

[0007] Preferably, an anchoring stiffening plate is provided through the interior of the web of the steel box beam, and a steel box partition is provided on one side of the anchoring stiffening plate.

[0008] Preferably, the anchor protection assembly includes an anti-slip pad, a protective shell, a clamping block, a limit spring and a pull rod, wherein a protective shell is provided at the bottom end of the lower YGM anchor, a clamping block is provided inside the protective shell, an anti-slip pad is provided on the side of the clamping block close to the lower YGM anchor, a pull rod is provided on the other side of the clamping block, and a limit spring is provided on the surface of the pull rod.

[0009] Preferably, a guide rod is provided on the surface of the protective shell corresponding to the pull rod, and a damping sleeve is provided inside the guide rod corresponding to the pull rod.

[0010] Preferably, a sealing gasket is provided on the upper end surface of the protective shell corresponding to the cap beam.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model strengthens the connection strength between the cap beam at the upper end of the pier and the steel box beam web by setting upper and lower YGM anchors, and setting threaded steel and bottom plate stiffening ribs in the middle, thereby optimizing the force effect, preventing damage to the cap beam, improving the service life of the equipment, and ensuring the supporting strength of the pier. At the same time, anchor stiffening plates and steel box partitions are set inside the steel box beam web to enhance the supporting effect, ensure construction quality, improve structural safety, and reduce construction costs.

[0013] 2. The utility model ensures the stability of the installation of the protective shell, improves the installation quality, and ensures the protection effect by setting an anchor protection component, and provides a sealing gasket to seal the gap between the cap beam and the protective shell to prevent water seepage from flowing to the lower YGM anchor, reduce the impact of the external environment on the lower YGM anchor, and increase the service life of the lower YGM anchor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a side view of the structure of the utility model;

[0016] Figure 3 This is a top view of the structure of the utility model;

[0017] Figure 4 This is a schematic structural diagram of the anchor protection assembly of the present utility model.

[0018] In the figure: 1. Upper YGM anchor; 2. Prestressed pipe body; 3. Mortar leveling layer; 4. Limiting steel plate; 5. Prestressed pipe connection joint; 6. Bridge pier; 7. Anchor protection assembly; 71. Damping sleeve; 72. Anti-slip pad; 73. Protective shell; 74. Clamping block; 75. Limiting spring; 76. Pull rod; 77. Sealing pad; 8. Lower YGM anchor; 9. Cap beam; 10. Vertical prestressed tendon corrugated pipe; 11. Bottom plate stiffener; 12. Steel box girder bottom plate; 13. Steel box girder web; 14. Top plate stiffener; 15. Steel box girder top plate; 16. Anchor stiffener; 17. Anchor plate; 18. Steel box partition; 19. Threaded steel bar. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] See also Figure 1-4 The utility model provides the following technical solutions: a pier-beam consolidation structure of a steel box girder bridge, comprising a pier 6, a cap beam 9 provided at the upper end of the pier 6, a steel box girder bottom plate 12 provided at the upper end of the cap beam 9, a plurality of bottom plate stiffening ribs 11 provided on the top surface of the steel box girder bottom plate 12, a steel box girder web 13 provided at the upper end of the steel box girder bottom plate 12, a steel box girder top plate 15 provided at the upper end of the steel box girder web 13, a plurality of top plate stiffening ribs 14 provided on the bottom end surface of the steel box girder top plate 15, and a lower YGM anchor 8 provided at the bottom end of the cap beam 9. An anchor protection assembly 7 is provided on the surface of the lower YGM anchor 8, a threaded steel bar 19 is provided on the upper end of the lower YGM anchor 8, a vertical prestressed tendon corrugated pipe 10 is provided on the surface of the threaded steel bar 19, an upper YGM anchor 1 is provided on the top of the threaded steel bar 19, an anchor plate 17 is provided on one side of the steel box girder web 13 corresponding to the upper YGM anchor 1, a prestressed pipe body 2 is provided between the anchor plate 17 and the steel box girder bottom plate 12, and a limiting steel plate 4 is provided on both sides of the steel box girder bottom plate 12, and a mortar leveling layer 3 is provided on the upper end of the limiting steel plate 4.

[0022] Specifically, a prestressed pipe connecting joint 5 is provided inside the steel box girder bottom plate 12 corresponding to the prestressed pipe main body 2 .

[0023] By adopting the above technical solution, the installation of the prestressed pipe body 2 is ensured to be accurate and stable, the fixing strength is improved, and the work quality is guaranteed.

[0024] Specifically, an anchoring stiffening plate 16 is provided through the interior of the steel box girder web 13 , and a steel box partition 18 is provided on one side of the anchoring stiffening plate 16 .

[0025] By adopting the above technical solution, anchor stiffening plates 16 and steel box partitions 18 are provided inside the steel box beam web 13 to enhance the supporting effect, ensure construction quality, improve structural safety, and reduce construction costs.

[0026] When this embodiment is in use: by setting the upper YGM anchor 1 and the lower YGM anchor 8, and setting threaded steel bars 19 and bottom plate stiffening ribs 11 in the middle, the connection strength between the cap beam 9 at the upper end of the pier 6 and the steel box beam web 13 is strengthened, the force effect is optimized, the cap beam 9 is prevented from being damaged, the service life of the equipment is improved, and the supporting strength of the pier 6 is guaranteed. At the same time, anchor stiffening plates 16 and steel box partitions 18 are set inside the steel box beam web 13 to strengthen the supporting effect, ensure construction quality, improve structural safety, and reduce construction costs.

[0027] Example 2

[0028] The difference between this embodiment and embodiment 1 is that: specifically, the anchor protection assembly 7 includes an anti-slip pad 72, a protective shell 73, a clamping block 74, a limit spring 75 and a pull rod 76, wherein a protective shell 73 is provided at the bottom end of the lower YGM anchor 8, a clamping block 74 is provided inside the protective shell 73, an anti-slip pad 72 is provided on the side of the clamping block 74 close to the lower YGM anchor 8, and a pull rod 76 is provided on the other side of the clamping block 74, and a limit spring 75 is provided on the surface of the pull rod 76.

[0029] By adopting the above technical solution, when the lower YGM anchor 8 is used, the pull rod 76 can be pulled to drive the limit spring 75 to be compressed, and then the protective shell 73 can be sleeved on the surface of the lower YGM anchor 8 and the pull rod 76 can be loosened. The limit spring 75 is reset so that the anti-slip pad 72 at one end of the clamping block 74 is tightly attached to the surface of the lower YGM anchor 8 to clamp it, thereby ensuring the stability of the installation of the protective shell 73, improving the installation quality, and ensuring the protection effect.

[0030] Specifically, a guide rod is provided on the surface of the protective shell 73 corresponding to the pull rod 76 , and a damping sleeve 71 is provided inside the guide rod corresponding to the pull rod 76 .

[0031] By adopting the above technical solution, the stability of the pull rod 76 is ensured and the quality of the clamping block 74 is improved.

[0032] Specifically, a sealing gasket 77 is provided on the upper end surface of the protective shell 73 corresponding to the cap beam 9 .

[0033] By adopting the above technical solution, a sealing gasket 77 is provided to seal the gap between the cap beam 9 and the protective shell 73 to prevent water from seeping into the lower YGM anchor 8, thereby reducing the impact of the external environment on the lower YGM anchor 8 and improving the service life of the lower YGM anchor 8.

[0034] When this embodiment is in use: when the lower YGM anchor 8 is in use, the pull rod 76 can be pulled to drive the limit spring 75 to be compressed, and then the protective shell 73 can be sleeved on the surface of the lower YGM anchor 8 and the pull rod 76 can be released. The limit spring 75 is reset so that the anti-slip pad 72 at one end of the clamping block 74 is tightly attached to the surface of the lower YGM anchor 8 to clamp it, ensuring the stability of the installation of the protective shell 73, improving the installation quality, and ensuring the protection effect. A sealing gasket 77 is provided to seal the gap between the cap beam 9 and the protective shell 73 to prevent water from seeping into the lower YGM anchor 8, reducing the impact of the external environment on the lower YGM anchor 8, and improving the service life of the lower YGM anchor 8.

[0035] Working principle and use process of the utility model: When in use, the utility model strengthens the connection strength between the cap beam 9 at the upper end of the pier 6 and the steel box beam web 13 by setting the upper YGM anchor 1 and the lower YGM anchor 8, and setting the threaded steel 19 and the bottom plate stiffening rib 11 in the middle, thereby optimizing the force effect, preventing the cap beam 9 from being damaged, improving the service life of the equipment, and ensuring the supporting strength of the pier 6. At the same time, the anchor stiffening plate 16 and the steel box partition 18 are set inside the steel box beam web 13 to strengthen the supporting effect, ensure the construction quality, improve the safety of the structure, and reduce the construction cost.

[0036] When the lower YGM anchor 8 is in use, the pull rod 76 can be pulled to drive the limit spring 75 to be compressed, and then the protective shell 73 can be sleeved on the surface of the lower YGM anchor 8 and the pull rod 76 can be loosened. The limit spring 75 is reset so that the anti-slip pad 72 at one end of the clamping block 74 is tightly attached to the surface of the lower YGM anchor 8 to clamp it, ensuring the stability of the installation of the protective shell 73, improving the installation quality, and ensuring the protection effect. A sealing gasket 77 is provided to seal the gap between the cap beam 9 and the protective shell 73 to prevent water from seeping into the lower YGM anchor 8, reducing the impact of the external environment on the lower YGM anchor 8, and improving the service life of the lower YGM anchor 8.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pier-beam consolidation structure of a steel box girder bridge, comprising a pier (6), characterized in that: The upper end of the pier (6) is provided with a cap beam (9), the upper end of the cap beam (9) is provided with a steel box beam bottom plate (12), the top surface of the steel box beam bottom plate (12) is provided with a plurality of bottom plate stiffening ribs (11), the upper end of the steel box beam bottom plate (12) is provided with a steel box beam web plate (13), the upper end of the steel box beam web plate (13) is provided with a steel box beam top plate (15), the bottom surface of the steel box beam top plate (15) is provided with a plurality of top plate stiffening ribs (14), the lower end of the cap beam (9) is provided with a lower YGM anchor (8), the surface of the lower YGM anchor (8) is provided with an anchor protection assembly. The invention relates to a component (7), a threaded steel bar (19) is provided at the upper end of the lower YGM anchor (8), a vertical prestressed steel bar corrugated pipe (10) is provided on the surface of the threaded steel bar (19), an upper YGM anchor (1) is provided at the top end of the threaded steel bar (19), an anchor plate (17) is provided on one side of the steel box girder web (13) corresponding to the upper YGM anchor (1), a prestressed pipe body (2) is provided between the anchor plate (17) and the steel box girder bottom plate (12), and limiting steel plates (4) are provided on both sides of the steel box girder bottom plate (12), and a mortar leveling layer (3) is provided on the upper end of the limiting steel plates (4).

2. The pier-beam consolidation structure of a steel box girder bridge according to claim 1, characterized in that: A prestressed pipe connection joint (5) is provided inside the steel box beam bottom plate (12) corresponding to the prestressed pipe main body (2).

3. The pier-beam consolidation structure of a steel box girder bridge according to claim 1, characterized in that: An anchoring stiffening plate (16) is provided through the interior of the steel box beam web (13), and a steel box partition (18) is provided on one side of the anchoring stiffening plate (16).

4. The pier-beam consolidation structure of a steel box girder bridge according to claim 1, characterized in that: The anchor protection assembly (7) includes an anti-slip pad (72), a protective shell (73), a clamping block (74), a limit spring (75) and a pull rod (76), wherein a protective shell (73) is provided at the bottom end of the lower YGM anchor (8), a clamping block (74) is provided inside the protective shell (73), an anti-slip pad (72) is provided on one side of the clamping block (74) close to the lower YGM anchor (8), a pull rod (76) is provided on the other side of the clamping block (74), and a limit spring (75) is provided on the surface of the pull rod (76).

5. The pier-beam consolidation structure of a steel box girder bridge according to claim 4, characterized in that: A guide rod is provided on the surface of the protective shell (73) corresponding to the pull rod (76), and a damping sleeve (71) is provided inside the guide rod corresponding to the pull rod (76).

6. The pier-beam consolidation structure of a steel box girder bridge according to claim 4, characterized in that: A sealing gasket (77) is provided on the upper end surface of the protective shell (73) corresponding to the cap beam (9).

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