Steel structure spliced bridge and splicing method thereof

Abstract

The invention discloses a steel structure spliced bridge and a splicing method thereof, and relates to the technical field of bridge construction. The device comprises U-shaped connecting sections which are symmetrically arranged, steel beam sections are symmetrically inserted into the U-shaped connecting sections, U-shaped fixing sections are symmetrically and fixedly connected to one ends of the steel beam sections, one ends of the U-shaped fixing sections are inserted into the U-shaped connecting sections, and fixing holes are formed in one ends of the U-shaped fixing sections. When the steel beam section is dragged to drive the U-shaped fixing section to be inserted into the U-shaped connecting section, the pre-fixing clamping block is driven to be ejected out of the lifting sliding groove and embedded into the pre-fixing clamping groove, clamping and fixing between the U-shaped connecting section and the steel beam section are achieved, and then a fixing bolt is dragged to penetrate through an adjusting hole and a fixing hole to fix the U-shaped connecting section and the steel beam section. And the fixing nuts and the fixing bolts are tightened to form threaded connection, rapid fixed connection between the U-shaped connecting section and the steel beam section is completed, and meanwhile the reinforcing steel beam and the pre-fixing clamping blocks are used for supporting pressure borne by the connecting end of the U-shaped connecting section and the steel beam section.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a steel structure spliced ​​bridge and a splicing method thereof. Background Art

[0002] In traditional bridge construction, concrete pouring has always been dominant. However, with the acceleration of urbanization and the growing demand for transportation, the requirements for bridge construction cycles have gradually become more stringent. Traditional concrete pouring bridges have a long construction cycle and are obviously not suitable for situations where traffic needs to be restored urgently, which has led to an urgent need to find new solutions in the field of bridge construction.

[0003] Steel structure bridges have gradually become the new favorite in the field of bridge construction due to their advantages such as fast construction speed, strong bearing capacity and large span. However, existing steel structure bridges still face a series of challenges in construction. First of all, since most steel structure bridges are made of multiple steel beam segments connected and welded together, their structure is complex, resulting in a lot of on-site welding work.

[0004] The large amount of on-site welding work not only increases the difficulty of construction, but also seriously affects the construction speed. In addition, the quality of on-site welding is affected by many factors, such as the technical level of welders, the quality of welding materials, and the conditions of the welding environment, all of which make it difficult to ensure the overall strength and stability of the bridge. Summary of the invention

[0005] The purpose of this application is to solve the problem that a large amount of on-site welding work not only increases the construction difficulty but also seriously affects the construction speed. This application provides a steel structure spliced ​​bridge and a splicing method thereof.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: The U-shaped fixing section is symmetrically arranged, and a steel beam section is symmetrically inserted inside the U-shaped fixing section, and one end of the steel beam section is symmetrically fixedly connected to the U-shaped fixing section, and one end of the U-shaped fixing section is inserted into the interior of the U-shaped fixing section, and a fixing hole is opened at one end of the U-shaped fixing section, and an adjustment hole adapted for the fixing hole is symmetrically opened at one end of the U-shaped fixing section, and a fixing bolt is inserted inside the adjusting hole, and one end of the fixing bolt passes through the fixing hole and the adjustment hole and is threadedly connected with a fixing nut. A reinforcing steel beam adapted for the U-shaped fixing section is fixedly connected to the inner side of the U-shaped connecting section, and a lifting slide is symmetrically opened inside the reinforcing steel beam, and a pre-fixed card block is symmetrically slidably connected inside the lifting slide, and a pre-fixed card slot adapted for the pre-fixed card block is symmetrically opened on one end of the steel beam section and the U-shaped fixing section, and a transmission component for driving the pre-fixed card block to be inserted into the pre-fixed card slot is installed inside the reinforcing steel beam.

[0007] By adopting the above technical scheme, by setting the transmission component and the coordinated use of the pre-fixed block and the pre-fixed slot, it is convenient to drive the pre-fixed block to push out of the interior of the lifting slide groove and embed it into the interior of the pre-fixed slot while pulling the steel beam section to drive the U-shaped fixed section to insert into the interior of the U-shaped connecting section, so as to realize the clamping and fixing between the U-shaped connecting section and the steel beam section, and then pull the fixing bolt through the adjustment hole and the fixing hole, and tighten the fixing nut and the fixing bolt to form a threaded connection, so as to complete the rapid fixed connection between the U-shaped connecting section and the steel beam section, and at the same time, use the reinforced steel beam and the pre-fixed block to support the pressure on the connecting end of the U-shaped connecting section and the steel beam section, thereby effectively improving the installation efficiency of the fixed connection between the U-shaped connecting section and the steel beam section, and improving the overall strength and stability of the bridge.

[0008] Furthermore, the transmission assembly includes a driving groove symmetrically opened inside the reinforced steel beam, one side of the driving groove is connected to the lifting slide groove, the inside of the driving groove is slidably connected with a driving slider, one end of the driving slider is evenly and fixedly connected with a plurality of driving springs, the driving springs are installed inside the driving groove, and the other end of the driving slider is fixedly connected with a triangular lifting block adapted to the pre-fixed block.

[0009] By adopting the above technical scheme, by setting the driving spring, the driving slider and the triangular lifting block for coordinated use, it is convenient to use the U-shaped fixed section to push the pre-fixed block into the interior of the lifting slot when the steel beam section is pulled to drive the U-shaped fixed section to be inserted into the interior of the U-shaped connecting section, and cooperate with the triangular lifting block to push the driving slider to extrude the driving spring to produce a contraction deformation, and then when the U-shaped fixed section drives the pre-fixed slot to align with the pre-fixed block, the rebound deformation of the driving spring is used to push the triangular lifting block to eject the pre-fixed block, and push the pre-fixed block to pull the interior of the pre-fixed slot, thereby realizing the rapid clamping and pre-fixation of the steel beam section and the U-shaped connecting section, thereby improving the practicability of the device.

[0010] Furthermore, a traction inclined groove is symmetrically opened at one end of the triangular lifting block, and a traction roller is rotatably connected to one end of the pre-fixed clamping block. The traction roller is inserted inside the traction inclined groove and forms a rolling conflict with the inner wall of the traction inclined groove.

[0011] By adopting the above technical scheme, by setting the coordinated use of the traction roller and the traction inclined groove, it is convenient to drive the triangular lifting block to drive the two adjacent pre-fixed blocks to move closer to or away from each other along the length direction of the fixing bolt, so that the triangular lifting block forms a rolling conflict with the traction roller through the traction inclined groove, thereby reducing the wear between the triangular lifting block and the pre-fixed block and extending the service life of the device.

[0012] Furthermore, a receiving groove is symmetrically provided at one end of the U-shaped connecting section, and one end of the fixing bolt and the fixing nut are both installed inside the receiving groove.

[0013] By adopting the above technical solution, by setting the storage groove and the coordinated use of the fixing bolts and the fixing nuts, the loosening of the fixing bolts and the fixing nuts due to external forces is reduced, the flatness of the upper and lower surfaces of the U-shaped connecting section is effectively improved, and the stability of the device is enhanced.

[0014] Furthermore, a reinforcing beam is installed between two adjacent U-shaped connecting sections, one end of the U-shaped connecting section is provided with a T-shaped slot, and one end of the reinforcing beam is symmetrically fixedly connected with a T-shaped plug adapted to the T-shaped slot.

[0015] By adopting the above technical solution, by setting up the coordinated use of the T-shaped plug and the T-shaped slot, it is convenient to use the reinforcing beam to drive the T-shaped plug to form a conflict with the inner wall of the T-shaped slot, thereby pulling the two adjacent U-shaped connecting sections to form a whole, thereby improving the stability of the device and increasing the load-bearing area between the two U-shaped connecting sections.

[0016] Furthermore, a plurality of drainage openings penetrating the U-shaped connecting section are evenly arranged on the inner side of the T-shaped slot.

[0017] By adopting the above technical solution, by setting the drainage outlet and the coordinated use of the T-shaped slot, the problem of rainwater accumulation inside the T-shaped slot, which affects the connection stability between the reinforcing beam and the U-shaped connecting section, is effectively reduced.

[0018] Furthermore, the surfaces of the U-shaped connecting section, the steel beam section and the U-shaped fixing section are all coated with organic silicon waterproof coating.

[0019] By adopting the above technical solution and providing an organic silicon waterproof coating, the corrosion resistance of the device is effectively improved and the service life of the device is extended.

[0020] A method for splicing a steel structure spliced ​​bridge, comprising: S1: First, manually pull the steel beam segment to drive the U-shaped fixing segment to be inserted into the interior of the U-shaped connecting segment, and push the U-shaped fixing segment to align the fixing hole with the adjustment hole; S2: At the same time, the reinforced steel beam drives the pre-fixed block to form a conflict with one end of the U-shaped fixed section, and the two adjacent pre-fixed blocks are forced to move closer to each other along the length direction of the fixing bolt, and at the same time, the two adjacent pre-fixed blocks push the driving slider to move toward the inside of the driving groove along the inclined surface of the triangular lifting block, and the driving slider squeezes the driving spring to produce contraction deformation; S3: Then the pre-fixed card block is retracted into the interior of the lifting slide slot, and at the same time, the reinforcing steel beam is pushed to embed into the interior of the U-shaped fixed section, and the pre-fixed card block is guided to align with the pre-fixed card slot; S4: Then the U-shaped fixing section releases the squeezing of the pre-fixed card block, and uses the rebound deformation of the driving spring to push the driving slider to move along the length direction of the driving slot, and pushes the triangular lifting block to drive the two adjacent pre-fixed card blocks to move away from each other along the length direction of the fixing bolt, and one end of the pre-fixed card block is pushed out of the lifting slot and inserted into the pre-fixed card slot; S5: Then the U-shaped fixing section drives the steel beam section and the U-shaped connecting section to form a quick clamping fixation, so as to complete the pre-fixation between the U-shaped connecting section and the steel beam section; S6: Then pull the fixing bolt through the adjustment hole and the fixing hole, and tighten the fixing nut so that the fixing nut forms a fixed abutment with the U-shaped connecting section along the length direction of the fixing bolt, thereby achieving a fixed connection between the U-shaped connecting section and the U-shaped fixing section.

[0021] In summary, the present application includes at least one of the following beneficial effects: 1. By setting the transmission component and the coordinated use of the pre-fixed block and the pre-fixed slot, it is convenient to drive the pre-fixed block to push out of the lifting slot while the steel beam section is pulled to drive the U-shaped fixed section to be inserted into the U-shaped connecting section, and embed it into the pre-fixed slot to achieve the clamping fixation between the U-shaped connecting section and the steel beam section, and then pull the fixing bolt through the adjustment hole and the fixing hole, and tighten the fixing nut and the fixing bolt to form a threaded connection, so as to complete the rapid fixed connection between the U-shaped connecting section and the steel beam section, and at the same time, the reinforced steel beam and the pre-fixed block are used to support the pressure on the connecting end of the U-shaped connecting section and the steel beam section, thereby effectively improving the installation efficiency of the fixed connection between the U-shaped connecting section and the steel beam section, and improving the overall strength and stability of the bridge.

[0022] 2. By setting the driving spring, driving slider and triangular lifting block for coordinated use, when the steel beam section is pulled to drive the U-shaped fixed section to insert into the U-shaped connecting section, the U-shaped fixed section is used to push the pre-fixed block into the inside of the lifting slot, and the triangular lifting block is used to push the driving slider to extrude the driving spring to produce a contraction deformation. Then, when the U-shaped fixed section drives the pre-fixed slot to align with the pre-fixed block, the rebound deformation of the driving spring is used to push the triangular lifting block to eject the pre-fixed block, and push the pre-fixed block to pull the inside of the pre-fixed slot, thereby realizing the rapid clamping and pre-fixing of the steel beam section and the U-shaped connecting section, thereby improving the practicability of the device.

[0023] 3. By setting up the coordinated use of the traction roller and the traction bevel, when the triangular lifting block is driven to drive the two adjacent pre-fixed blocks to move closer to or away from each other along the length direction of the fixing bolt, the triangular lifting block forms a rolling conflict with the traction roller through the traction bevel, thereby reducing the wear between the triangular lifting block and the pre-fixed block and extending the service life of the device.

[0024] 4. By setting up the coordinated use of the T-shaped plug and the T-shaped slot, it is convenient to use the reinforcing beam to drive the T-shaped plug to form a conflict with the inner wall of the T-shaped slot, thereby pulling the two adjacent U-shaped connecting sections to form a whole, thereby improving the stability of the device and increasing the load-bearing area between the two U-shaped connecting sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0026] Figure 2 It is an exploded view of the main body of the device in this application.

[0027] Figure 3 It is a schematic diagram of the internal structure of the reinforced steel beam in this application.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the drain outlet in this application.

[0029] Description of reference numerals: 1. U-shaped connecting section; 2. Steel beam section; 3. U-shaped fixing section; 4. Fixing hole; 5. Adjusting hole; 6. Fixing bolt; 7. Fixing nut; 8. Reinforced steel beam; 9. Lifting slide; 10. Pre-fixing block; 11. Pre-fixing slot; 12. Driving slot; 13. Driving slider; 14. Driving spring; 15. Triangular lifting block; 16. Traction inclined slot; 17. Traction roller; 18. Storage slot; 19. Reinforced beam; 20. T-shaped slot; 21. T-shaped plug; 22. Drainage outlet. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The embodiment of the present application discloses a steel structure spliced ​​bridge and a splicing method thereof.

[0032] Reference Figure 1-Figure 3, a steel structure splicing bridge, comprising a symmetrically arranged U-shaped connecting section 1, a steel beam section 2 is symmetrically inserted inside the U-shaped connecting section 1, one end of the steel beam section 2 is symmetrically fixedly connected with a U-shaped fixing section 3, one end of the U-shaped fixing section 3 is inserted into the interior of the U-shaped connecting section 1, and one end of the U-shaped fixing section 3 is provided with a fixing hole 4, one end of the U-shaped connecting section 1 is symmetrically provided with an adjusting hole 5 adapted to the fixing hole 4, a fixing bolt 6 is inserted inside the adjusting hole 5, one end of the fixing bolt 6 passes through the fixing hole 4 and the adjusting hole 5, and is threadedly connected with a fixing nut 7, a reinforcing steel beam 8 adapted to the U-shaped fixing section 3 is fixedly connected to the inner side of the U-shaped connecting section 1, a lifting chute 9 is symmetrically provided inside the reinforcing steel beam 8, a pre-fixed card block 10 is symmetrically slidably connected inside the lifting chute 9, a pre-fixed card slot 11 adapted to the pre-fixed card block 10 is symmetrically provided on one end of the steel beam section 2 and the U-shaped fixing section 3, and a transmission component for driving the pre-fixed card block 10 to be inserted into the pre-fixed card slot 11 is installed inside the reinforcing steel beam 8; Among them, the transmission component includes a driving groove 12 symmetrically opened inside the reinforced steel beam 8, one side of the driving groove 12 is connected to the lifting slide groove 9, the driving groove 12 is internally slidably connected with a driving slider 13, one end of the driving slider 13 is evenly fixedly connected with multiple driving springs 14, the driving springs 14 are installed inside the driving groove 12, and the other end of the driving slider 13 is fixedly connected with a triangular lifting block 15 adapted to the pre-fixed block 10.

[0033] When in use, first manually pull the steel beam section 2 to drive the U-shaped fixing section 3 to insert into the interior of the U-shaped connecting section 1, and push the U-shaped fixing section 3 to drive the fixing hole 4 to align with the adjustment hole 5, and at the same time, the reinforcing steel beam 8 drives the pre-fixed block 10 to form a conflict with one end of the U-shaped fixing section 3, and the two adjacent pre-fixed blocks 10 are forced to move closer to each other along the length direction of the fixing bolt 6, and at the same time, the two adjacent driving sliders 13 are pushed along the inclined surface of the triangular lifting block 15 to move toward the inside of the driving groove 12, and the driving slider 13 squeezes the driving spring 14 to produce a contraction deformation, and then the pre-fixed block 10 is retracted into the interior of the lifting slide groove 9, and at the same time, the reinforcing steel beam 8 is pushed to embed into the U-shaped fixing The U-shaped fixing section 3 is inserted into the interior of the pre-fixing block 10 and guides the pre-fixing block 10 to align with the pre-fixing slot 11. Then, the U-shaped fixing section 3 releases the squeezing of the pre-fixing block 10, and uses the rebound deformation of the driving spring 14 to push the driving slider 13 to move along the length direction of the driving slot 12. At the same time, the driving slider 13 pushes the triangular lifting block 15 to drive the two adjacent pre-fixing blocks 10 to move away from each other along the length direction of the fixing bolt 6, and one end of the pre-fixing block 10 is pushed out of the lifting slot 9 and inserted into the pre-fixing slot 11, so that the U-shaped fixing section 3 drives the steel beam section 2 to form a quick clamping fixation with the U-shaped connecting section 1, so as to complete the pre-fixation between the U-shaped connecting section 1 and the steel beam section 2. Then, one end of the fixing bolt 6 is manually pulled from top to bottom through the two adjustment holes 5 and the fixing hole 4, and extended to the bottom of the U-shaped connecting section 1, and then the fixing nut 7 is tightened to form a threaded connection with the fixing bolt 6, and the fixing bolt 6 is moved upward along the length direction of the fixing bolt 6 to form a fixed contact with the U-shaped connecting section 1, thereby realizing the fixed connection between the U-shaped connecting section 1 and the steel beam section 2, so as to facilitate the pre-fixation of the U-shaped connecting section 1 and the steel beam section 2 with the transmission assembly while pulling the U-shaped fixing section 3 into the interior of the U-shaped connecting section 1, and then the fixing bolt 6 and the fixing nut 7 are used to quickly realize the fixed connection between the U-shaped connecting section 1 and the steel beam section 2, which effectively improves the installation efficiency of the fixed connection between the U-shaped connecting section 1 and the steel beam section 2, and improves the overall strength and stability of the bridge.

[0034] Reference Figure 2 and Figure 3 A traction chute 16 is symmetrically provided at one end of the triangular lifting block 15 , and a traction roller 17 is rotatably connected to one end of the pre-fixed block 10 . The traction roller 17 is inserted into the interior of the traction chute 16 and forms a rolling conflict with the inner wall of the traction chute 16 .

[0035] When in use, when the driving slider 13 drives the triangular lifting block 15 to move along the length direction of the driving groove 12, the driving slider 13 drives the triangular lifting block 15 to drive the traction roller 17 to form a rolling conflict with the inner wall of the traction inclined groove 16, and the traction roller 17 drives the two adjacent pre-fixed blocks 10 to move closer to or away from each other along the length direction of the fixing bolt 6, which effectively reduces the wear between the triangular lifting block 15 and the pre-fixed block 10 and extends the service life of the device.

[0036] Reference Figure 1 and Figure 2 A receiving groove 18 is symmetrically opened at one end of the U-shaped connecting section 1 , and one end of the fixing bolt 6 and the fixing nut 7 are both installed inside the receiving groove 18 .

[0037] When in use, after one end of the pulling fixing bolt 6 passes through the two adjustment holes 5 and the fixing hole 4, the fixing nut 7 is tightened to form a fixed interference with the U-shaped connecting section 1 along the length direction of the fixing bolt 6, so that one end of the fixing bolt 6 and the fixing nut 7 are both embedded in the interior of the receiving groove 18, thereby effectively improving the flatness of the upper and lower surfaces of the U-shaped connecting section 1, reducing the loosening of the fixing bolt 6 and the fixing nut 7 due to external force, and improving the stability of the device.

[0038] Reference Figure 2 and Figure 4 A reinforcing beam 19 is installed between two adjacent U-shaped connecting sections 1, a T-shaped slot 20 is opened at one end of the U-shaped connecting section 1, and a T-shaped plug block 21 adapted to the T-shaped slot 20 is symmetrically fixedly connected to one end of the reinforcing beam 19; A plurality of drainage openings 22 penetrating the U-shaped connecting section 1 are evenly formed on the inner side of the T-shaped slot 20 .

[0039] When in use, the two T-shaped plugs 21 are driven by manually pulling the reinforcing beam 19 to be inserted into the T-shaped slots 20 at one end of the two U-shaped connecting sections 1, so that when the two U-shaped connecting sections 1 are subjected to external force and move away from each other, the reinforcing beam 19 cooperates with the T-shaped plug 21 to form a conflict with the inner wall of the T-shaped slot 20, and limits the distance between the two U-shaped connecting sections 1 to remain unchanged, thereby further improving the stability of the device and the bearing area between the two U-shaped connecting sections 1. The setting of the drain port 22 penetrating the T-shaped slot 20 and the U-shaped connecting section 1 facilitates guiding the water flow accumulated in the T-shaped slot 20 to be discharged through the drain port 22, thereby improving the practicability of the device.

[0040] Reference Figure 1 and Figure 2 The surfaces of the U-shaped connecting section 1, the steel beam section 2 and the U-shaped fixing section 3 are all coated with organic silicone waterproof coating.

[0041] When in use, an organic silicone waterproof coating is coated on the surfaces of the U-shaped connecting section 1, the steel beam section 2 and the U-shaped fixing section 3, so that an anti-corrosion waterproof layer is formed on the surfaces of the U-shaped connecting section 1, the steel beam section 2 and the U-shaped fixing section 3, thereby reducing the degree of rust on the surfaces of the U-shaped connecting section 1, the steel beam section 2 and the U-shaped fixing section 3, maintaining the supporting strength of the U-shaped connecting section 1, the steel beam section 2 and the U-shaped fixing section 3, and extending the service life of the device.

[0042] A method for splicing a steel structure spliced ​​bridge, comprising: S1: First, manually pull the steel beam section 2 to drive the U-shaped fixing section 3 to be inserted into the U-shaped connecting section 1, and push the U-shaped fixing section 3 to drive the fixing hole 4 to align with the adjustment hole 5; S2: At the same time, the reinforcing steel beam 8 drives the pre-fixed block 10 to form a conflict with one end of the U-shaped fixed section 3, and the two adjacent pre-fixed blocks 10 are forced to move closer to each other along the length direction of the fixing bolt 6, and at the same time, the two adjacent pre-fixed blocks 10 push the driving slider 13 to move toward the inside of the driving groove 12 along the inclined surface of the triangular lifting block 15, and the driving slider 13 squeezes the driving spring 14 to produce a contraction deformation; S3: Then the pre-fixed block 10 is retracted into the lifting slot 9, and at the same time, the reinforcing steel beam 8 is pushed to embed into the U-shaped fixed section 3, and the pre-fixed block 10 is guided to align with the pre-fixed slot 11; S4: Then the U-shaped fixing section 3 releases the squeezing of the pre-fixed block 10, and utilizes the rebound deformation of the driving spring 14 to push the driving slider 13 to move along the length direction of the driving slot 12, and pushes the triangular lifting block 15 to drive the two adjacent pre-fixed blocks 10 to move away from each other along the length direction of the fixing bolt 6, and makes one end of the pre-fixed block 10 push out of the interior of the lifting slot 9, and insert into the interior of the pre-fixed slot 11; S5: Then the U-shaped fixing section 3 drives the steel beam section 2 and the U-shaped connecting section 1 to form a quick clamping fixation, so as to complete the pre-fixation between the U-shaped connecting section 1 and the steel beam section 2; S6: Then pull the fixing bolt 6 through the adjustment hole 5 and the fixing hole 4, and tighten the fixing nut 7 so that the fixing nut 7 forms a fixed abutment with the U-shaped connecting section 1 along the length direction of the fixing bolt 6, thereby achieving a fixed connection between the U-shaped connecting section 1 and the U-shaped fixing section 3.

[0043] The implementation principle of a steel structure splicing bridge and its splicing method in this embodiment is as follows: first, manually pull the steel beam section 2 to drive the U-shaped fixing section 3 to insert into the interior of the U-shaped connecting section 1, and push the U-shaped fixing section 3 to drive the fixing hole 4 to align with the adjustment hole 5, and at the same time, the reinforcing steel beam 8 drives the pre-fixing block 10 to form a conflict with one end of the U-shaped fixing section 3, and the two adjacent pre-fixing blocks 10 are forced to move closer to each other along the length direction of the fixing bolt 6, and at the same time drive the traction roller 17 to form a rolling conflict along the inner wall of the traction inclined groove 16, and push the triangular lifting block 15 to drive the driving slider 13 to move toward the inside of the driving groove 12, and at the same time make the driving slider 13 squeeze the driving spring 14 to produce contraction deformation, and then the pre-fixing The block 10 is retracted into the interior of the lifting chute 9, and at the same time, the reinforcing steel beam 8 is pushed to be embedded in the interior of the U-shaped fixed section 3, and the pre-fixed block 10 is guided to be aligned with the pre-fixed slot 11, and then the U-shaped fixed section 3 releases the squeezing of the pre-fixed block 10, and the driving slider 13 is pushed to move along the length direction of the driving slot 12 by the rebound deformation of the driving spring 14, and at the same time, the driving slider 13 pushes the triangular lifting block 15 to drive the two adjacent pre-fixed blocks 10 to move away from each other along the length direction of the fixing bolt 6, and one end of the pre-fixed block 10 is pushed out of the interior of the lifting chute 9, and at the same time inserted into the interior of the pre-fixed slot 11, so that the U-shaped fixed section 3 drives the steel beam section 2 to form a quick clamping fixation with the U-shaped connecting section 1; Then, one end of the fixing bolt 6 is manually pulled from top to bottom through the two adjustment holes 5 and the fixing hole 4, and extends to the bottom of the U-shaped connecting section 1, and then the fixing nut 7 is tightened to form a threaded connection with the fixing bolt 6, and moves upward along the length direction of the fixing bolt 6 to form a fixed conflict with the U-shaped connecting section 1, and then the reinforcing beam 19 is manually pulled to drive the two T-shaped plug blocks 21 to be inserted into the T-shaped slots 20 at one end of the two U-shaped connecting sections 1, so that when the two U-shaped connecting sections 1 are subjected to external force and move away from each other, the reinforcing beam 19 cooperates with the T-shaped plug block 21 to form a conflict with the inner wall of the T-shaped slot 20, and limits the distance between the two U-shaped connecting sections 1 to remain unchanged, thereby further improving the stability of the device and the load-bearing area between the two U-shaped connecting sections 1.

Claims

1. A steel structure spliced ​​bridge, comprising symmetrically arranged U-shaped connecting sections (1), characterized in that: The U-shaped connecting section (1) is symmetrically inserted with a steel beam section (2), one end of the steel beam section (2) is symmetrically fixedly connected with a U-shaped fixing section (3), one end of the U-shaped fixing section (3) is inserted into the interior of the U-shaped connecting section (1), and one end of the U-shaped fixing section (3) is provided with a fixing hole (4), one end of the U-shaped connecting section (1) is symmetrically provided with an adjustment hole (5) adapted to the fixing hole (4), a fixing bolt (6) is inserted into the interior of the adjustment hole (5), one end of the fixing bolt (6) passes through the fixing hole (4) and the adjustment hole (5), and is threadedly connected with A fixing nut (7) is provided, the inner side of the U-shaped connecting section (1) is fixedly connected with a reinforcing steel beam (8) adapted to the U-shaped fixing section (3), the interior of the reinforcing steel beam (8) is symmetrically provided with a lifting slide groove (9), the interior of the lifting slide groove (9) is symmetrically slidably connected with a pre-fixing block (10), one end of the steel beam section (2) and the U-shaped fixing section (3) is symmetrically provided with a pre-fixing groove (11) adapted to the pre-fixing block (10), and the interior of the reinforcing steel beam (8) is provided with a transmission component for driving the pre-fixing block (10) to be inserted into the pre-fixing groove (11).

2. A steel structure spliced ​​bridge according to claim 1, characterized in that: The transmission assembly comprises a driving groove (12) symmetrically arranged inside the reinforcing steel beam (8), one side of the driving groove (12) is connected to the lifting slide groove (9), a driving slider (13) is slidably connected inside the driving groove (12), one end of the driving slider (13) is evenly and fixedly connected to a plurality of driving springs (14), the driving springs (14) are installed inside the driving groove (12), and the other end of the driving slider (13) is fixedly connected to a triangular lifting block (15) adapted to the pre-fixed block (10).

3. A steel structure spliced ​​bridge according to claim 2, characterized in that: One end of the triangular lifting block (15) is symmetrically provided with a traction inclined groove (16), one end of the pre-fixed clamping block (10) is rotatably connected to a traction roller (17), and the traction roller (17) is inserted into the interior of the traction inclined groove (16) and forms a rolling conflict with the inner wall of the traction inclined groove (16).

4. The steel structure spliced ​​bridge according to claim 1, characterized in that: A receiving groove (18) is symmetrically formed at one end of the U-shaped connecting section (1), and one end of each of the fixing bolt (6) and the fixing nut (7) is mounted inside the receiving groove (18).

5. The steel structure spliced ​​bridge according to claim 1, characterized in that: A reinforcing beam (19) is installed between two adjacent U-shaped connecting sections (1), one end of the U-shaped connecting section (1) is provided with a T-shaped slot (20), and one end of the reinforcing beam (19) is symmetrically fixedly connected with a T-shaped plug block (21) adapted to the T-shaped slot (20).

6. The steel structure spliced ​​bridge according to claim 1, characterized in that: A plurality of drainage openings (22) penetrating the U-shaped connecting section (1) are evenly arranged on the inner side of the T-shaped slot (20).

7. The steel structure spliced ​​bridge according to claim 1, characterized in that: The surfaces of the U-shaped connecting section (1), the steel beam section (2) and the U-shaped fixing section (3) are all coated with organic silicon waterproof coating.

8. A method for splicing a steel structure spliced ​​bridge according to any one of claims 1 to 7, characterized in that: include: S1: first, manually pull the steel beam section (2) to drive the U-shaped fixing section (3) to be inserted into the interior of the U-shaped connecting section (1), and push the U-shaped fixing section (3) to drive the fixing hole (4) to align with the adjustment hole (5); S2: At the same time, the reinforcing steel beam (8) drives the pre-fixed block (10) to form a conflict with one end of the U-shaped fixed section (3), and the two adjacent pre-fixed blocks (10) are forced to move closer to each other along the length direction of the fixing bolt (6), and at the same time, the two adjacent pre-fixed blocks (10) push the driving slider (13) along the inclined surface of the triangular lifting block (15) to move toward the inside of the driving groove (12), and the driving slider (13) squeezes the driving spring (14) to produce a contraction deformation; S3: Then the pre-fixing block (10) is retracted into the interior of the lifting slide groove (9), and at the same time, the reinforcing steel beam (8) is pushed to be embedded into the interior of the U-shaped fixing section (3), and the pre-fixing block (10) is guided to be aligned with the pre-fixing groove (11); S4: Then, the U-shaped fixing section (3) releases the squeezing of the pre-fixed block (10), and utilizes the rebound deformation of the driving spring (14) to push the driving slider (13) to move along the length direction of the driving groove (12), and pushes the triangular lifting block (15) to drive the two adjacent pre-fixed blocks (10) to move away from each other along the length direction of the fixing bolt (6), and makes one end of the pre-fixed block (10) push out of the interior of the lifting slot (9) and insert into the interior of the pre-fixed slot (11); S5: Then, the U-shaped fixing section (3) drives the steel beam section (2) and the U-shaped connecting section (1) to form a quick clamping fixation, so as to complete the pre-fixation between the U-shaped connecting section (1) and the steel beam section (2); S6: Then, the fixing bolt (6) is pulled through the adjustment hole (5) and the fixing hole (4), and the fixing nut (7) is tightened, so that the fixing nut (7) forms a fixed abutment with the U-shaped connecting section (1) along the length direction of the fixing bolt (6), thereby achieving a fixed connection between the U-shaped connecting section (1) and the U-shaped fixing section (3).

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