Large-span assembly type bridge structure

Abstract

The utility model provides a large-span assembly type bridge structure, which belongs to the technical field of bridge assembly and comprises a pier stud seat, an upper supporting seat arranged at the top of the pier stud seat, a cover beam arranged at the top of the pier stud seat, a plurality of box beam limiting grooves distributed in the top of the cover beam, a supporting box beam arranged in the box beam limiting grooves, and trapezoidal limiting plates distributed on two sides of the bottom of the supporting box beam. The large-span assembly type bridge structure comprises a plurality of supporting box girders, a convex supporting beam is arranged between every two adjacent supporting box girders, inserting grooves are distributed in the two sides of the top end of each convex supporting beam, trapezoid limiting plates are connected into the inserting grooves in a penetrating and inserting mode, and supporting bridge plates are arranged at the tops of the supporting box girders. The supporting box beam and the convex supporting beam are quickly spliced, the fixing steel bars are fixed in the first positioning holes and the second positioning holes, structural connection between the supporting box beam and the convex supporting beam is reinforced, the supporting weight of the cover beam is shared through the auxiliary supporting beam, and the stability of the bridge is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge assembly, and in particular relates to a large-span assembled bridge structure. Background Art

[0002] After the existing large-span prefabricated bridges are assembled, the cross bars between the components have a large span, which reduces the shear strength of the cross beams and affects the overall seismic resistance and stability of the bridge. Among them, the "A large-span prefabricated bridge structure" disclosed in the application number "CN201921285875.5" is also an increasingly mature technology. However, the device still has the following defects: when assembling the bridge, the joints between the components are not easy to align, resulting in deviations in the hole positions between the components. The positions of the components need to be adjusted back and forth, and the bridge components are aligned and spliced. The components are connected by threads, and the connecting parts are easy to break and have low strength. After the bridge is installed, the bearing capacity is not high and the gravity at the bottom of the bridge cannot be shared. Utility Model Content

[0003] The purpose of the utility model is to provide a large-span prefabricated bridge structure, which aims to solve the problem in the prior art that the connections between components are not easy to align, resulting in deviations in the hole positions between components, and the need to adjust the positions of components back and forth, align and splice the bridge components, and the components are connected by threads. The connecting parts are easy to break and have low strength, and the bearing capacity after the bridge is installed is not high, and the gravity at the bottom of the bridge cannot be shared.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a pier column seat, an upper support seat is provided on the top of the pier column seat, a cap beam is provided on the top of the cap beam, a plurality of box beam limiting grooves are distributed on the top of the cap beam, a supporting box beam is provided in the box beam limiting groove, trapezoidal limiting plates are distributed on both sides of the bottom of the supporting box beam, a convex supporting beam is provided between adjacent supporting box beams, slots are distributed on both sides of the top of the convex supporting beam, the trapezoidal limiting plates are inserted and connected in the slots, and a supporting bridge plate is provided on the top of the supporting box beam.

[0005] In an implementation scheme of a large-span prefabricated bridge structure of the present invention, a first positioning hole is opened in the middle of the trapezoidal limiting plate, a second positioning hole is opened in the middle of the inner wall of the slot, and fixed steel bars are provided in the first positioning hole and the second positioning hole.

[0006] In this solution, the trapezoidal limiting plate is inserted into the slot to quickly splice the supporting box beam and the convex supporting beam. At this time, the first positioning hole is aligned with the second positioning hole, and fixed steel bars are used to fix the first positioning hole and the second positioning hole to strengthen the structural connection between the supporting box beam and the convex supporting beam.

[0007] In an implementation scheme of a large-span prefabricated bridge structure of the present utility model, a plurality of first steel bar support holes are opened on the top of the convex support beam, and a plurality of second steel bar support holes corresponding to the positions of the first steel bar support holes are distributed on both sides of the top of the support box beam, and connecting steel bars are provided in the first steel bar support holes and the second steel bar support holes.

[0008] In this solution, the first steel bar support hole and the second steel bar support hole are quickly aligned. After the hole positions are aligned, connecting steel bars are inserted into the first steel bar support hole and the second steel bar support hole for splicing, so that the support box beam and the convex support beam form a whole.

[0009] In an implementation scheme of a large-span prefabricated bridge structure of the present utility model, a plurality of first connection holes are distributed on the surface of the supporting bridge deck, a plurality of second connection holes are distributed on the top of the convex supporting beam, and a third connection hole is distributed on the bottom of the cap beam. The first connection holes, the second connection holes, and the third connection holes are connected by auxiliary steel bars.

[0010] In this solution, after installing the supporting bridge deck, the supporting box girder and the convex supporting beam are hoisted into the box girder limit, the box girder limit groove coincides with the supporting box girder, the first connection hole, the second connection hole, and the third connection hole are aligned, and auxiliary steel bars are used to fix the supporting box girder, the convex supporting beam, and the supporting bridge deck on the cap beam to complete integrated fixation, which is convenient for subsequent equipment laying.

[0011] In an implementation scheme of a large-span prefabricated bridge structure of the present utility model, auxiliary support beams are provided on both sides of the top of the pier seat, first auxiliary support holes are opened on both sides of the auxiliary support beam, and a plurality of second auxiliary support holes are distributed and connected at the bottom of the cap beam, and reinforcement screws are connected to the first auxiliary support holes and the second auxiliary support holes.

[0012] In this solution, after the upper supporting box beam is fixed to the convex supporting beam and the supporting bridge deck, the reinforcing screws are fixed in the first auxiliary supporting hole and the second auxiliary supporting hole. The auxiliary supporting beam shares the supporting weight of the cap beam, thereby improving the stability of the bridge.

[0013] In an implementation scheme of a large-span prefabricated bridge structure of the present invention, a fourth connection hole is opened on the top of the auxiliary support beam, and one end of the auxiliary steel bar is fixedly connected to the fourth connection hole.

[0014] In this solution, one end of the auxiliary steel bar is fixed in the fourth connection hole to improve the stability of the overall structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1) By inserting the trapezoidal limiting plate into the slot, the supporting box girder and the convex supporting beam are quickly spliced ​​together. At this time, the first positioning hole is aligned with the second positioning hole, and the first steel bar support hole is quickly aligned with the second steel bar support hole. The fixing steel bar is fixed to the first positioning hole and the second positioning hole to strengthen the structural connection between the supporting box girder and the convex supporting beam. The auxiliary support beam shares the support weight of the cap beam, thereby improving the stability of the bridge;

[0017] 2) During installation, the box girder limit groove coincides with the supporting box girder, which facilitates the alignment of the first connection hole, the second connection hole, the third connection hole, and the fourth connection hole. Auxiliary steel bars are used to fix the supporting box girder, the convex supporting beam, and the supporting bridge plate on the cap beam to complete integrated fixation, which is convenient for subsequent large-scale equipment laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the supporting box beam structure of the present utility model.

[0022] In the figure: 1. Pier seat; 2. Cap beam; 3. Box beam limiting groove; 4. Support box beam; 5. Trapezoidal limiting plate; 6. Convex support beam; 7. Slot; 8. Support bridge plate; 9. First positioning hole; 10. Second positioning hole; 11. Fixing steel bar; 12. First steel bar support hole; 13. Second steel bar support hole; 14. Connecting steel bar; 15. First connecting hole; 16. Second connecting hole; 17. Third connecting hole; 18. Auxiliary steel bar; 19. Auxiliary support beam; 20. First auxiliary support hole; 21. Second auxiliary support hole; 22. Reinforcement screw; 23. Fourth connecting hole. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-3The utility model provides the following technical solutions: a large-span assembled bridge structure, including a pier seat 1, an upper support seat is provided on the top of the pier seat 1, a cap beam 2 is provided on the top of the cap beam 2, a plurality of box beam limiting grooves 3 are distributed on the top of the cap beam 2, a supporting box beam 4 is provided in the box beam limiting groove 3, trapezoidal limiting plates 5 are distributed on both sides of the bottom of the supporting box beam 4, a convex supporting beam 6 is provided between adjacent supporting box beams 4, slots 7 are distributed on both sides of the top of the convex supporting beam 6, the trapezoidal limiting plates 5 are inserted and connected in the slots 7, and a supporting bridge plate 8 is provided on the top of the supporting box beam 4.

[0025] For a specific embodiment of a large-span prefabricated bridge structure, please refer to Figure 2 Figure 3 : A first positioning hole 9 is opened in the middle of the trapezoidal limiting plate 5, a second positioning hole 10 is opened in the middle of the inner wall of the slot 7, and a fixing steel bar 11 is provided in the first positioning hole 9 and the second positioning hole 10.

[0026] See also Figure 2 Figure 3 : Insert the trapezoidal limiting plate 5 into the slot 7 to quickly splice the supporting box beam 4 and the convex supporting beam 6. At this time, the first positioning hole 9 is aligned with the second positioning hole 10, and the fixing steel bar 11 is fixed to the first positioning hole 9 and the second positioning hole 10 to strengthen the structural connection between the supporting box beam 4 and the convex supporting beam 6.

[0027] For a specific embodiment of a large-span prefabricated bridge structure, please refer to Figure 2 : A number of first steel bar support holes 12 are opened on the top of the convex support beam 6, and a number of second steel bar support holes 13 corresponding to the positions of the first steel bar support holes 12 are distributed on both sides of the top of the supporting box beam 4. Connecting steel bars 14 are provided in the first steel bar support holes 12 and the second steel bar support holes 13.

[0028] See also Figure 2 : The first steel bar support hole 12 and the second steel bar support hole 13 are quickly aligned. After the hole positions are aligned, the connecting steel bar 14 is inserted into the first steel bar support hole 12 and the second steel bar support hole 13 for splicing, so that the support box beam 4 and the convex support beam 6 form a whole.

[0029] For a specific embodiment of a large-span prefabricated bridge structure, please refer to Figure 2 : A number of first connection holes 15 are distributed on the surface of the supporting bridge plate 8, a number of second connection holes 16 are distributed on the top of the convex support beam 6, and a third connection hole 17 is distributed on the bottom of the cap beam 2. The first connection hole 15, the second connection hole 16, and the third connection hole 17 are connected by auxiliary steel bars 18.

[0030] See also Figure 2: After installing the supporting bridge plate 8, the supporting box beam 4 and the convex supporting beam 6 are hoisted into the box beam limiting groove 3, the box beam limiting groove 3 coincides with the supporting box beam 4, the first connecting hole 15, the second connecting hole 16, and the third connecting hole 17 are aligned, and the auxiliary steel bars 18 are used to fix the supporting box beam 4, the convex supporting beam 6, and the supporting bridge plate 8 on the cap beam 2 to complete the integrated fixation, which is convenient for the subsequent equipment laying.

[0031] For a specific embodiment of a large-span prefabricated bridge structure, please refer to Figure 2 : Auxiliary support beams 19 are provided on both sides of the top of the pier seat 1, and first auxiliary support holes 20 are opened on both sides of the auxiliary support beam 19. A number of second auxiliary support holes 21 are distributed and connected at the bottom of the cap beam 2, and reinforcement screws 22 are connected in the first auxiliary support holes 20 and the second auxiliary support holes 21.

[0032] See also Figure 2 : After the upper supporting box beam 4 is fixed to the convex supporting beam 6 and the supporting bridge plate 8, the reinforcing screws 22 are fixed in the first auxiliary supporting hole 20 and the second auxiliary supporting hole 21, and the supporting weight of the cap beam 2 is shared by the auxiliary supporting beam 19 to improve the stability of the bridge.

[0033] For a specific embodiment of a large-span prefabricated bridge structure, please refer to Figure 2 A fourth connection hole 23 is provided at the top of the auxiliary support beam 19 , and one end of the auxiliary steel bar 18 is fixedly connected to the fourth connection hole 23 .

[0034] See also Figure 2 One end of the auxiliary steel bar 18 is fixed in the fourth connection hole 23 to improve the stability of the overall structure.

[0035] The utility model provides a large-span prefabricated bridge structure, which is specifically used as follows: insert the trapezoidal limiting plate 5 into the slot 7 to quickly splice the support box beam 4 and the convex support beam 6. At this time, the first positioning hole 9 is aligned with the second positioning hole 10, and the first steel bar support hole 12 is quickly aligned with the second steel bar support hole 13. After the hole positions are aligned, the connecting steel bars 14 are inserted into the first steel bar support hole 12 and the second steel bar support hole 13 for splicing, so that the support box beam 4 and the convex support beam 6 form a whole, and the fixing steel bars 11 are fixed to the first positioning hole 9 and the second positioning hole 10 to strengthen the structural connection between the support box beam 4 and the convex support beam 6. After installing the supporting bridge deck 8, the supporting box girder 4 and the convex supporting beam 6 are hoisted into the box girder limiting groove 3. The box girder limiting groove 3 coincides with the supporting box girder 4. The first connecting hole 15, the second connecting hole 16, the third connecting hole 17, and the fourth connecting hole 23 are aligned. The supporting box girder 4, the convex supporting beam 6, and the supporting bridge deck 8 are fixed to the cap beam 2 using auxiliary steel bars 18 to complete integrated fixation, which is convenient for subsequent large-scale equipment laying. The reinforcing screws 22 are fixed in the first auxiliary supporting holes 20 and the second auxiliary supporting holes 21. The auxiliary support beam 19 shares the supporting weight of the cap beam 2 to improve the stability of the bridge.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A large-span assembled bridge structure, comprising a pier column seat (1), characterized in that: The top of the pier column seat (1) is provided with an upper support seat, and the top of the cap beam (2) is provided with a plurality of box beam limiting grooves (3) distributed on the top of the cap beam (2), and a supporting box beam (4) is provided in the box beam limiting groove (3), and trapezoidal limiting plates (5) are distributed on both sides of the bottom of the supporting box beam (4), and a convex supporting beam (6) is provided between adjacent supporting box beams (4), and slots (7) are distributed on both sides of the top of the convex supporting beam (6), and the trapezoidal limiting plates (5) are inserted and connected in the slots (7), and a supporting bridge plate (8) is provided on the top of the supporting box beam (4).

2. The large-span prefabricated bridge structure according to claim 1, characterized in that: A first positioning hole (9) is provided in the middle of the trapezoidal limiting plate (5), a second positioning hole (10) is provided in the middle of the inner wall of the slot (7), and fixing steel bars (11) are provided in the first positioning hole (9) and the second positioning hole (10).

3. The large-span prefabricated bridge structure according to claim 1, characterized in that: A plurality of first steel bar support holes (12) are provided on the top of the convex support beam (6), and a plurality of second steel bar support holes (13) corresponding to the positions of the first steel bar support holes (12) are distributed on both sides of the top of the support box beam (4), and connecting steel bars (14) are provided in the first steel bar support holes (12) and the second steel bar support holes (13).

4. The large-span prefabricated bridge structure according to claim 1, characterized in that: The surface of the supporting bridge plate (8) is provided with a plurality of first connection holes (15), the top of the convex supporting beam (6) is provided with a plurality of second connection holes (16), and the bottom of the cap beam (2) is provided with a third connection hole (17), and the first connection hole (15), the second connection hole (16), and the third connection hole (17) are connected by auxiliary steel bars (18).

5. The large-span prefabricated bridge structure according to claim 4, characterized in that: Auxiliary support beams (19) are provided on both sides of the top of the pier column seat (1), and first auxiliary support holes (20) are opened on both sides of the auxiliary support beam (19). A plurality of second auxiliary support holes (21) are distributed and connected at the bottom of the cap beam (2), and the first auxiliary support holes (20) and the second auxiliary support holes (21) are connected with reinforcement screws (22).

6. The large-span prefabricated bridge structure according to claim 5, characterized in that: A fourth connection hole (23) is provided at the top of the auxiliary support beam (19), and one end of the auxiliary steel bar (18) is fixedly connected to the fourth connection hole (23).

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