Prefabricated assembly type combined arch bridge plate girder

Abstract

The utility model provides a prefabricated assembly type combined arch bridge plate girder, which belongs to the field of bridges and comprises a steel plate frame, an arch frame is arranged at the bottom of the inner wall of the steel plate frame, prefabricated blocks are arranged on two sides of the top of the arch frame, clamping grooves are formed in side edges of opposite sides of the two prefabricated blocks, and the clamping grooves are connected with the steel plate frame. And an assembling component is arranged on the inner wall of the clamping groove. A plurality of groups of fourth steel joints at the bottoms of the two precast blocks are clamped with a plurality of groups of fourth clamping holes in the top of the arch frame, so that the two precast blocks are fixed with the arch frame, a plurality of groups of first steel joints on a pouring block are clamped with the inner walls of a plurality of groups of first clamping holes in the inner walls of two clamping grooves, so that the pouring block is fixedly mounted with the two precast blocks; reinforcing meshes on the inner walls of the pouring blocks are matched to increase the bearing capacity of the plate girder.

Description

Technical Field

[0001] The utility model relates to the field of bridges, in particular to a prefabricated assembled composite arch bridge slab beam. Background Art

[0002] Prefabricated prestressed concrete hollow slab beams are mostly used for small and medium span bridges. The main defects of traditional concrete hollow slab beams include cracking of hinged joints and longitudinal cracks in the bottom plate. The hinged joints are the weak parts of the concrete hollow slab beams. The cracking of the hinged joints will directly affect the lateral force transmission characteristics of the bridge structure, weaken the overall force-bearing performance of the structure, and cause the single plate to be stressed; longitudinal cracks in the bottom plate usually appear near the prestressed tendons of the bottom plate of the hollow slab, and the cracks can easily cause the main reinforcement of the bottom plate to rust. After searching, a prefabricated prefabricated composite slab beam disclosed in the application number CN202022338173.8 is recorded, which includes overlapping the steel plates between two adjacent prefabricated prefabricated composite slab beam units, welding the steel mesh between the two adjacent prefabricated prefabricated composite slab beam units together, screwing high-strength bolts in the bolt holes of the overlapping steel plates, pouring steel fiber compensating shrinkage concrete in the steel mesh between the two adjacent prefabricated prefabricated composite slab beam units, and fixing the two adjacent prefabricated prefabricated composite slab beam units together. The utility model has light weight, small beam efficiency, high bearing capacity, no need to arrange prestressed tendons, quick construction, excellent economic indicators, the compression area is on the reinforced concrete slab, and the concrete is not easily cracked by tension. However, the device still has the following defects in actual use: the structure of the device is not suitable for arch bridge structure when used, and lacks corresponding structure to reduce stress. Therefore, it is necessary to design a prefabricated and assembled composite arch bridge slab beam with strong practicality. Utility Model Content

[0003] The purpose of the utility model is to provide a prefabricated assembled composite arch bridge slab beam to solve the problems raised by the above background technology.

[0004] To achieve the above object, the utility model provides the following technical solutions: a prefabricated assembled composite arch bridge slab beam, comprising a steel plate frame, an arch frame is provided at the bottom of the inner wall of the steel plate frame, prefabricated blocks are provided on both sides of the top of the arch frame, and slots are provided on the sides of the two prefabricated blocks on the opposite sides, and an assembly component is provided on the inner wall of the slot;

[0005] An assembly component, the assembly component includes a casting block that is engaged with the inner walls of two slots, grooves are provided on both sides of the top of the casting block, and a steel mesh is provided on the inner wall of the groove. The middle part of the bottom of the casting block is arc-shaped, and the inner wall is engaged with the top of the arch frame, and two groups of first steel joints are provided at the bottom of both ends of the casting block, and the bottom ends of the two groups of first steel joints are engaged with two groups of first engaging holes provided on both sides of the bottom of the inner wall of the slot, a through groove is provided in the middle of the top of the casting block, and an auxiliary component is provided on the inner wall of the through groove.

[0006] An auxiliary component comprises a mounting block which is snap-connected to the inner wall of the through groove, an arc-shaped groove is provided at the bottom of the mounting block, the inner wall of the arc-shaped groove is snap-connected to the top of the arch frame, a plurality of second steel joints are provided on both sides of the bottom of the inner wall of the arc-shaped groove, and the bottom ends of the plurality of second steel joints are snap-connected to the second snap-connecting holes provided on both sides of the top of the arch frame.

[0007] As a preferred solution of the utility model: docking grooves are provided on both sides of the inner wall of the through groove, the inner walls of the two docking grooves are snap-connected with the protrusions at both ends of the mounting block, a plurality of third steel joints are provided at the bottom of the protrusions, and the bottoms of the plurality of third steel joints are snap-connected with the inner walls of a plurality of third snap-in holes provided at the bottom of the inner wall of the docking groove.

[0008] As a preferred solution of the utility model: two groups of fourth clamping holes are opened on both sides of the top of the arch frame, and the inner walls of the two groups of fourth clamping holes are clamped and connected with two groups of fourth steel joints opened on both sides of the bottom of the two prefabricated blocks.

[0009] As a preferred solution of the utility model: the middle part of the bottom of the steel plate frame is arc-shaped and penetrates the bottom of the arch frame.

[0010] As a preferred solution of the utility model: the upper parts of the inner walls of the two slots are snap-connected with the two ends of the prefabricated casting plate.

[0011] As a preferred solution of the utility model: two load-bearing blocks are provided at the bottom of the inner wall of the arch.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The two prefabricated blocks are fixed to the arch frame by engaging several groups of fourth steel joints at the bottom of the two prefabricated blocks with several groups of fourth clamping holes at the top of the arch frame, and several groups of first steel joints on the casting block are engaged with the inner walls of several groups of first clamping holes on the inner walls of the two clamping grooves, so as to install and fix it to the two prefabricated blocks, and cooperate with the steel mesh on the inner wall of the casting block to increase the load-bearing capacity of the plate beam;

[0014] (2) By engaging the arc groove at the bottom of the mounting block with the top of the arch frame, and engaging the plurality of second steel joints at the bottom with the plurality of second engaging holes, and engaging the plurality of third steel joints at the bottom of the protrusions at both ends of the mounting block with the plurality of third engaging holes at the bottom of the inner wall of the docking groove, the straightening toughness of the middle part of the casting block is increased to prevent it from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2This is one of the structural diagrams of the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the assembly components and auxiliary components of the utility model.

[0019] In the figure: 1. steel plate frame; 11. arch frame; 12. prefabricated block; 13. slot; 14. first snap-in hole; 15. second snap-in hole; 16. fourth snap-in hole; 17. fourth steel joint; 18. prefabricated casting plate; 19. load-bearing block; 2. assembly component; 21. casting block; 22. groove; 23. steel mesh; 24. first steel joint; 25. through groove; 26. docking groove; 27. third snap-in hole; 3. auxiliary component; 31. mounting block; 32. arc groove; 33. second steel joint; 34. third steel joint. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 A prefabricated composite arch bridge slab beam comprises a steel frame 1, an arch frame 11 is arranged at the bottom of the inner wall of the steel frame 1, prefabricated blocks 12 are arranged on both sides of the top of the arch frame 11, and slots 13 are opened on the sides of the two prefabricated blocks 12 on the opposite sides, and an assembly component 2 is arranged on the inner wall of the slot 13;

[0022] See also Figure 4 , assembly component 2, the assembly component 2 includes a casting block 21 that is engaged with the inner walls of the two slots 13, grooves 22 are opened on both sides of the top of the casting block 21, and a steel mesh 23 is provided on the inner wall of the groove 22. The middle part of the bottom of the casting block 21 is arc-shaped, and the inner wall is engaged with the top of the arch frame 11, and two groups of first steel joints 24 are provided at the bottom of both ends of the casting block 21. The bottom ends of the two groups of first steel joints 24 are engaged with two groups of first connecting holes 14 opened on both sides of the bottom of the inner wall of the slot 13, and a through groove 25 is opened in the middle of the top of the casting block 21, and an auxiliary component 3 is provided on the inner wall of the through groove 25.

[0023] Auxiliary component 3, the auxiliary component 3 includes a mounting block 31 which is snap-connected with the inner wall of the through groove 25, an arc-shaped groove 32 is provided at the bottom of the mounting block 31, the inner wall of the arc-shaped groove 32 is snap-connected with the top of the arch frame 11, and a plurality of second steel joints 33 are provided on both sides of the bottom of the inner wall of the arc-shaped groove 32, and the bottom ends of the plurality of second steel joints 33 are snap-connected with the second snap-connecting holes 15 provided on both sides of the top of the arch frame 11.

[0024] During specific use: several groups of fourth steel joints 17 at the bottom of the two prefabricated blocks 12 are engaged with several groups of fourth clamping holes 16 at the top of the arch frame 11, so as to fix the two prefabricated blocks 12 to the arch frame 11, and several groups of first steel joints 24 on the casting block 21 are engaged with the inner walls of several groups of first clamping holes 14 on the inner walls of the two slots 13, so as to install and fix it with the two prefabricated blocks 12, and cooperate with the steel mesh 23 on the inner wall of the casting block 21 to increase the bearing capacity of the plate beam.

[0025] See also Figure 4 Both sides of the inner wall of the through groove 25 are provided with docking grooves 26, the inner walls of the two docking grooves 26 are snap-connected with the protrusions at both ends of the mounting block 31, and a plurality of third steel joints 34 are provided at the bottom of the protrusions, and the bottoms of the plurality of third steel joints 34 are snap-connected with the inner walls of a plurality of third snap-in holes 27 provided at the bottom of the inner wall of the docking groove 26.

[0026] During specific use: the arc groove 32 at the bottom of the mounting block 31 is engaged with the top of the arch frame 11, and at the same time, the several second steel joints 33 at the bottom are engaged with the several second engaging holes 15, and the several third steel joints 34 at the bottom of the protrusions at both ends of the mounting block 31 are engaged with the several third engaging holes 27 at the bottom of the inner wall of the docking groove 26, thereby increasing the straightening toughness of the middle part of the casting block 21 to avoid its breakage.

[0027] See also Figure 3 Two groups of fourth clamping holes 16 are provided on both sides of the top of the arch frame 11 , and the inner walls of the two groups of fourth clamping holes 16 are clamped and connected with two groups of fourth steel joints 17 provided on both sides of the bottom of the two prefabricated blocks 12 .

[0028] During specific use, a plurality of groups of fourth steel joints 17 at the bottom of the two prefabricated blocks 12 are engaged with a plurality of groups of fourth engaging holes 16 at the top of the arch frame 11 , thereby fixing the two prefabricated blocks 12 and the arch frame 11 .

[0029] See also Figure 3 The middle part of the bottom of the steel plate frame 1 is arc-shaped and penetrates the bottom of the arch frame 11.

[0030] When in use, the bottom of the arch frame 11 is connected to the middle of the bottom of the steel plate frame 1, so that the two can be easily installed and fixed.

[0031] See also Figure 1The upper parts of the inner walls of the two slots 13 are engaged with the two ends of the prefabricated casting plate 18 .

[0032] During specific use, the two ends of the prefabricated casting plate 18 are engaged with the inner walls of the two slots 13 , so as to protect the top of the casting block 21 .

[0033] See also Figure 3 Two load-bearing blocks 19 are provided at the bottom of the inner wall of the arch frame 11.

[0034] During specific use: the two load-bearing blocks 19 at the bottom of the inner wall of the arch frame 11 are convenient for increasing the load-bearing capacity of the bottom of the arch bridge.

[0035] When in use, several groups of fourth steel joints 17 at the bottom of the two prefabricated blocks 12 are engaged with several groups of fourth clamping holes 16 at the top of the arch frame 11, so as to fix the two prefabricated blocks 12 to the arch frame 11, and several groups of first steel joints 24 on the casting block 21 are engaged with the inner walls of several groups of first clamping holes 14 on the inner walls of the two clamping grooves 13, so as to install and fix it to the two prefabricated blocks 12, and cooperate with the steel mesh 23 on the inner wall of the casting block 21 to increase the bearing capacity of the plate beam, and engage the arc groove 32 at the bottom of the mounting block 31 with the top of the arch frame 11, and at the same time, several second steel joints 33 at the bottom are engaged with several second clamping holes 15, and several third steel joints 34 at the bottom of the protrusions at both ends of the mounting block 31 are engaged with several third clamping holes 27 at the bottom of the inner wall of the docking groove 26, so as to increase the straightening toughness of the middle part of the casting block 21 to avoid its breakage.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prefabricated composite arch bridge slab beam, characterized in that: It comprises a steel plate frame (1), wherein an arch frame (11) is provided at the bottom of the inner wall of the steel plate frame (1), prefabricated blocks (12) are provided on both sides of the top of the arch frame (11), and slots (13) are provided on the sides of the two prefabricated blocks (12) on the opposite sides, and an assembly component (2) is provided on the inner wall of the slot (13); An assembly component (2), the assembly component (2) comprising a casting block (21) engaged with the inner walls of two slots (13), grooves (22) being provided on both sides of the top of the casting block (21), a steel mesh (23) being provided on the inner wall of the groove (22), the middle part of the bottom of the casting block (21) being arc-shaped, and the inner wall being engaged with the top of the arch frame (11), two groups of first steel joints (24) being provided at the bottom of both ends of the casting block (21), the bottom ends of the two groups of first steel joints (24) being engaged with two groups of first engaging holes (14) provided on both sides of the bottom of the inner wall of the slot (13), a through groove (25) being provided in the middle part of the top of the casting block (21), and an auxiliary component (3) being provided on the inner wall of the through groove (25); An auxiliary component (3), the auxiliary component (3) comprising a mounting block (31) snap-fitted with the inner wall of the through groove (25), an arc-shaped groove (32) being provided at the bottom of the mounting block (31), the inner wall of the arc-shaped groove (32) being snap-fitted with the top of the arch frame (11), a plurality of second steel joints (33) being provided on both sides of the bottom of the inner wall of the arc-shaped groove (32), the bottom ends of the plurality of second steel joints (33) being snap-fitted with second snap-fitting holes (15) provided on both sides of the top of the arch frame (11).

2. The prefabricated composite arch bridge slab beam according to claim 1, characterized in that: Both sides of the inner wall of the through groove (25) are provided with docking grooves (26), the inner walls of the two docking grooves (26) are snap-connected with the protrusions at both ends of the mounting block (31), the bottom of the protrusions is provided with a plurality of third steel joints (34), and the bottoms of the plurality of third steel joints (34) are snap-connected with the inner walls of a plurality of third snap-connecting holes (27) provided at the bottom of the inner wall of the docking groove (26).

3. The prefabricated composite arch bridge slab beam according to claim 1, characterized in that: Two groups of fourth clamping holes (16) are provided on both sides of the top of the arch frame (11), and the inner walls of the two groups of fourth clamping holes (16) are clamped and connected with two groups of fourth steel joints (17) provided on both sides of the bottom of the two prefabricated blocks (12).

4. The prefabricated composite arch bridge slab beam according to claim 1, characterized in that: The middle part of the bottom of the steel plate frame (1) is arc-shaped and is connected with the bottom of the arch frame (11).

5. The prefabricated composite arch bridge slab beam according to claim 1, characterized in that: The upper parts of the inner walls of the two clamping grooves (13) are clamped and connected with the two ends of the prefabricated casting plate (18).

6. The prefabricated composite arch bridge slab beam according to claim 1, characterized in that: Two load-bearing blocks (19) are provided at the bottom of the inner wall of the arch frame (11).

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