A low-carbon control device for integral moving of an SPMT steel truss beam and a construction method

Abstract

The application relates to the technical field of bridge construction, in particular to a SPMT steel truss girder integral moving and transporting low-carbon control device and a construction method, which comprises a module vehicle and a girder carrying support, the girder carrying support is located at the top of the module vehicle, a bridge is located on the girder carrying support, the girder carrying support comprises a supporting pipe and a connecting rod, both ends of the connecting rod are connected to the supporting pipe, a lifting piece is arranged between the module vehicle and the girder carrying support, and the lifting piece is used for adjusting the distance between the module vehicle and the girder carrying support. The application has the effect of shortening the bridge construction time.

Description

Technical Field

[0001] This application relates to the field of bridge construction technology, and in particular to a low-carbon control device and construction method for the integral transportation of SPMT steel truss girders. Background Technology

[0002] SPMT (Self-Propelled Modular Transporter) is a computer-controlled, freely combinable, ultra-heavy-duty modular transport platform with independent steering / lifting / driving capabilities on all wheels. It is specifically designed for transporting oversized and irregularly shaped cargo weighing thousands to tens of thousands of tons by land.

[0003] Currently, in the construction of bridges in some complex urban areas, the long construction period and large construction area of ​​traditional bridges often lead to long road closures. Given the high volume of urban traffic, this can easily cause inconvenience to people's travel and has its shortcomings. Summary of the Invention

[0004] To address the issue of prolonged road closures caused by bridge construction, this application provides a low-carbon control device and construction method for the overall transport of SPMT steel truss girders.

[0005] Firstly, this application provides a low-carbon control device for the overall transportation of SPMT steel truss girders, which adopts the following technical solution: A low-carbon control device for the overall transport of SPMT steel truss girders includes a modular vehicle and a beam-carrying support. The beam-carrying support is located on top of the modular vehicle, and the bridge is located on the beam-carrying support. The beam-carrying support includes a support pipe and a connecting rod. Both ends of the connecting rod are connected to the support pipe. A lifting component is provided between the modular vehicle and the beam-carrying support, and the lifting component is used to adjust the distance between the modular vehicle and the beam-carrying support.

[0006] By adopting the above technical solution, workers first construct a hardened site, then use hoisting equipment to hoist and assemble the modular vehicle according to the design axis. At the same time, a beam support frame is erected on the site, and a bridge is built on the erected beam support frame. Subsequently, the distance between the modular vehicle and the beam support frame is changed by lifting components, so that the modular vehicle can drive to the bottom of the beam support frame. Afterwards, the bridge on the beam support frame is moved to the pre-built piers by the modular vehicle. Finally, the modular vehicle and the beam support frame are dismantled. This greatly shortens the time occupied by the road during bridge construction and reduces the impact on people's travel.

[0007] Optionally, flanges are provided at both ends of the support tube, and multiple connecting lugs are provided on the circumferential outer wall of the support tube. The multiple connecting lugs are evenly arranged circumferentially along the axis of the support tube, and the end of the connecting rod is used to connect to the connecting lugs.

[0008] By adopting the above technical solution, workers can quickly assemble beam support frames of different heights using flanges and connecting rods, thus adapting to bridges of different sizes. The assembly is simple and convenient, which helps to reduce the time spent on assembly.

[0009] Optionally, the lifting component includes an outer cylinder for fixing to the top of the modular vehicle. An inner tube is coaxially threaded inside the outer cylinder, and a top plate is rotatably connected to the top of the inner tube. The top plate is detachably mounted on the flange. A lifting motor electrically connected to the control system is mounted on the top plate. A gear ring is coaxially sleeved on the top of the inner tube. A gear meshing with the gear ring is mounted on the output shaft of the lifting motor. A limited rotation tube is mounted on the outer cylinder, and a sliding rod is coaxially slidably mounted on the limited rotation tube. The sliding rod is mounted on the top plate.

[0010] Optionally, a lifting cylinder electrically connected to the control system is provided inside the outer cylinder, the inner tube is sleeved on the lifting cylinder, and the top plate is provided on the piston rod of the lifting cylinder.

[0011] Optionally, a retaining ring is provided on the inner tube, and the retaining ring is located between the toothed ring and the top of the outer cylinder.

[0012] By adopting the above technical solution, when it is necessary to lift the support beam, the control system simultaneously starts the lifting motor and the lifting cylinder. The output shaft of the lifting motor drives the gear ring to rotate forward through the gear. The rotating gear ring drives the inner tube to rotate forward. Under the restriction of the rotation limit tube and the slide rod, the rotating inner tube will drive the top plate to rise. The rotation limit tube and the slide rod slide relative to each other. At the same time, the piston rod of the lifting cylinder extends and pushes the top plate to rise synchronously. Through the coordinated work of the two drives, the effect of reducing the diameter of the outer cylinder is achieved. Furthermore, when either drive fails, the other drive cannot continue to start the movement of the inner tube, thus achieving a self-locking effect and reducing the possibility of the inner tube retracting unexpectedly.

[0013] Secondly, this application provides a construction method for the overall transportation of SPMT steel truss low-carbon control devices, employing the following technical solution: A construction method for transporting a low-carbon control device using an integrated SPMT steel truss girder includes the following steps: S1. Pre-construction preparation; S2. Assembly of the modular vehicle, construction of the beam support and bridge assembly; S3. Bridge lifting and transportation; S4. Dismantling of the beam support and disassembly of the modular vehicle.

[0014] Optionally, S1 includes the following steps: S11, leveling, pouring and hardening the bridge relocation route, assembly site and parking area of ​​the overpass according to design requirements; S12, temporarily removing existing structures on the relocation route, surveying and reinforcing the pipelines under the relocation route; S13, making reflective markings on the ground according to the designed relocation route to facilitate the positioning and relocation of the modular vehicle, and taking anti-collision measures for the structures during the relocation process; S14, pre-casting the bridge piers at the designed installation location.

[0015] Optionally, S2 includes the following steps: S21, assembling the modular vehicle on the site road according to the design axis using a crane; S22, building the beam support frame on the site; S23, after the modular vehicle is assembled, driving it into the bottom of the beam support frame; S24, building a bridge on the beam support frame.

[0016] Optionally, S3 includes the following steps: S31, the modular vehicle lifts the beam support; S32, the modular vehicle lifts the beam support to a suitable height; S33, the modular vehicle moves both ends of the bridge to the piers.

[0017] By adopting the above technical solution, a hardened site is poured in advance near the bridge construction site. Then, modular vehicles, beam-carrying supports, and the bridge are built on the site. The bridge is then transported to the pre-poured piers using modular vehicles. Finally, the modular vehicles and beam-carrying supports are dismantled. This greatly shortens the time required for traditional bridge construction methods and reduces the impact on people's travel.

[0018] In summary, this application includes at least one of the following beneficial technical effects: Workers first construct a hardened site, then use hoisting equipment to assemble the modular vehicle according to the designed axis. Simultaneously, a beam support frame is erected on the site, and a bridge is built on the completed beam support frame. Subsequently, lifting components are used to change the distance between the modular vehicle and the beam support frame, allowing the modular vehicle to drive to the bottom of the beam support frame. Afterward, the bridge on the beam support frame is moved to the pre-built piers using the modular vehicle. Finally, the modular vehicle and the beam support frame are dismantled. This process greatly shortens the time that road occupancy is required during bridge construction and reduces the impact on people's travel. When the support beam needs to be raised, the control system simultaneously starts the lifting motor and the lifting cylinder. The output shaft of the lifting motor drives the gear ring to rotate in the forward direction through the gear. The rotating gear ring drives the inner tube to rotate in the forward direction. Under the restriction of the rotation limit tube and the slide rod, the rotating inner tube will drive the top plate to rise. The rotation limit tube and the slide rod slide relative to each other. At the same time, the piston rod of the lifting cylinder extends and pushes the top plate to rise synchronously. Through the coordinated work of the two drives, the outer cylinder diameter is reduced. Furthermore, when either drive fails, the other drive cannot continue to start the inner tube movement, thus achieving a self-locking effect and reducing the possibility of the inner tube retracting unexpectedly. A hardened site is pre-cast near the bridge construction site, and then modular vehicles, beam supports, and the bridge are erected on the site. The bridge is then transported to the pre-cast piers using the modular vehicles. Finally, the modular vehicles and beam supports are dismantled, which greatly shortens the time required for traditional bridge construction methods and reduces the impact on people's travel. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0020] Figure 2 This is a structural schematic diagram used in the embodiments of this application to illustrate the positional relationship between the support tube, the outer cylinder, and the connecting rod.

[0021] Figure 3 This is a cross-sectional view used in the embodiments of this application to illustrate the positional relationship between the outer cylinder, the inner tube, and the lifting cylinder.

[0022] Explanation of reference numerals in the attached drawings: 1. Bridge; 2. Modular vehicle; 3. Beam support; 4. Support pipe; 5. Connecting rod; 6. Lifting component; 61. Outer cylinder; 62. Inner pipe; 63. Top plate; 64. Lifting motor; 65. Gear ring; 66. Gear; 67. Rotation limiter; 68. Slide rod; 7. Flange; 8. Connecting lug; 9. Lifting cylinder; 10. Retaining ring. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail. Example

[0024] This application discloses a low-carbon control device for the overall transportation of SPMT steel truss girders.

[0025] Reference Figure 1 , Figure 2 and Figure 3 A low-carbon control device for the overall transportation of SPMT steel truss girders includes a modular vehicle 2 and a beam support 3. The beam support 3 is located on top of the modular vehicle 2, and the bridge 1 is located on the beam support 3.

[0026] Workers first leveled, poured, and hardened the area near the bridge 1 to create a site for construction, and then used hoisting equipment to hoist and assemble the modular vehicle 2 according to the design axis.

[0027] Reference Figure 1 , Figure 2 and Figure 3 The beam support 3 includes a support pipe 4 and a connecting rod 5. Both ends of the support pipe 4 are welded with flanges 7. Multiple connecting lugs 8 are welded on the outer circumferential wall of the support pipe 4. The multiple connecting lugs 8 are evenly arranged circumferentially along the axis of the support pipe 4. Both ends of the connecting rod 5 are bolted to the connecting lugs 8 on the support pipe 4.

[0028] Reference Figure 1 , Figure 2 and Figure 3 A lifting component 6 is arranged between the modular vehicle 2 and the beam support 3. The lifting component 6 is used to adjust the distance between the modular vehicle 2 and the beam support 3.

[0029] Reference Figure 1 , Figure 2 and Figure 3 The lifting component 6 includes an outer cylinder 61, which is fixed to the top of the module vehicle 2. An inner tube 62 is coaxially threaded inside the outer cylinder 61. A top plate 63 is rotatably connected to the top of the inner tube 62. The top plate 63 is bolted to the flange 7. A lifting motor 64 electrically connected to the control system is bolted to the top plate 63. A gear ring 65 is coaxially sleeved on the top of the inner tube 62. A gear 66 that meshes with the gear ring 65 is bolted to the output shaft of the lifting motor 64.

[0030] Reference Figure 1 , Figure 2 and Figure 3 A limited rotation tube 67 is welded onto the outer cylinder 61. A sliding rod 68 is coaxially slidably inserted through the limited rotation tube 67. The sliding rod 68 is welded onto the top plate 63. A retaining ring 10 is welded onto the inner tube 62. The retaining ring 10 is located between the toothed ring 65 and the top of the outer cylinder 61. A lifting cylinder 9, which is electrically connected to the control system, is bolted inside the outer cylinder 61. The inner tube 62 is sleeved on the lifting cylinder 9. The top plate 63 is bolted to the piston rod of the lifting cylinder 9.

[0031] Workers place the outer cylinder 61 at the corresponding position according to the design requirements on the site, then place the support pipe 4 on the top plate 63 on top of the inner pipe 62, and fix the top plate 63 to the flange 7 at the bottom of the support pipe 4 with bolts, and connect and fix the two adjacent support pipes 4 with the connecting rod 5.

[0032] Multiple support pipes 4 are stacked and fixed according to the design requirements to build the beam support 3. Then, bridge 1 is built on top of the completed beam support 3 according to the design requirements. Then, the modular vehicle 2 is moved to the bottom of the beam support 3.

[0033] During this process, the lifting motor 64 and lifting cylinder 9 corresponding to some of the outer cylinders 61 are started synchronously. The output shaft of the lifting motor 64 drives the gear ring 65 to rotate in the opposite direction through the gear 66. The rotating gear ring 65 drives the inner tube 62 to rotate in the opposite direction. Under the restriction of the rotation limit tube 67 and the slide rod 68, the rotating inner tube 62 will drive the top plate 63 to descend, and relative sliding occurs between the rotation limit tube 67 and the slide rod 68.

[0034] At the same time, the piston rod of the lifting cylinder 9 retracts. Since the top plate 63 is fixed on the support beam 3, the outer cylinder 61 will rise, which makes it easier for the module vehicle 2 to move to the bottom of the outer cylinder 61. Then the worker fixes the bottom of the outer cylinder 61 to the top of the module vehicle 2, while the positions of the outer cylinders 61 on both sides of the moving direction of the module vehicle 2 remain unchanged.

[0035] Subsequently, the lifting device on the modular vehicle 2 raises the entire beam support 3, thereby lifting the bridge 1. The modular vehicle 2 then moves the bridge 1 to the pre-cast pier. Finally, the lifting device on the modular vehicle 2 lowers, separating the entire beam support 3 from the bridge 1. Workers can then disassemble the beam support 3 and the modular vehicle 2 as required.

[0036] The implementation principle of Example 1 is as follows: workers first level, pour and harden the site near the bridge 1 for construction according to the construction needs, and then use hoisting equipment to hoist and assemble the modular vehicle 2 according to the design axis.

[0037] Workers place the outer cylinder 61 at the corresponding position according to the design requirements on the site, then place the support pipe 4 on the top plate 63 on top of the inner pipe 62, and fix the top plate 63 to the flange 7 at the bottom of the support pipe 4 with bolts, and connect and fix the two adjacent support pipes 4 with the connecting rod 5.

[0038] Multiple support pipes 4 are stacked and fixed according to the design requirements to build the beam support 3. Then, bridge 1 is built on top of the completed beam support 3 according to the design requirements. Then, the modular vehicle 2 is moved to the bottom of the beam support 3.

[0039] During this process, the lifting motor 64 and lifting cylinder 9 corresponding to some of the outer cylinders 61 are started synchronously. The output shaft of the lifting motor 64 drives the gear ring 65 to rotate in the opposite direction through the gear 66. The rotating gear ring 65 drives the inner tube 62 to rotate in the opposite direction. Under the restriction of the rotation limit tube 67 and the slide rod 68, the rotating inner tube 62 will drive the top plate 63 to descend, and relative sliding occurs between the rotation limit tube 67 and the slide rod 68.

[0040] At the same time, the piston rod of the lifting cylinder 9 retracts. Since the top plate 63 is fixed on the support beam 3, the outer cylinder 61 will rise, which makes it easier for the module vehicle 2 to move to the bottom of the outer cylinder 61. Then the worker fixes the bottom of the outer cylinder 61 to the top of the module vehicle 2, while the positions of the outer cylinders 61 on both sides of the moving direction of the module vehicle 2 remain unchanged.

[0041] Subsequently, the lifting device on the modular vehicle 2 raises the entire beam support 3, thereby lifting the bridge 1. The modular vehicle 2 then moves the bridge 1 to the pre-cast pier. Finally, the lifting device on the modular vehicle 2 lowers, separating the entire beam support 3 from the bridge 1. Workers can then disassemble the beam support 3 and the modular vehicle 2 as required. Example

[0042] Embodiment 2 of this application discloses a construction method for a low-carbon control device for the integral transportation of SPMT steel truss beams, including the following steps: S1. Pre-construction preparations; The relocation route, assembly site, and parking area of ​​the overpass bridge 1 were leveled, poured, and hardened according to the design requirements. Existing structures on the relocation route were temporarily removed. Underground pipelines along the relocation route were surveyed and reinforced. Reflective markings were made on the ground according to the designed relocation route to facilitate the positioning and relocation of the modular vehicle 2. Collision protection measures were taken for the structures during the relocation process.

[0043] S2, assembly of modular vehicle 2, construction of beam support 3 and assembly of bridge 1; The modular vehicle 2 is assembled on the road within the site according to the design axis using two 80t cranes. At the same time, the outer cylinder 61 is installed at the design location within the site, and the support pipe 4 and connecting rod 5 are installed on the top plate 63 to build the beam support 3. Finally, according to the design splicing sequence, the bridge 1 is symmetrically constructed on the top of the beam support 3 from the middle of the span to both sides.

[0044] S3, Bridge 1 relocation; The outer cylinder 61 at the bottom of the beam support 3 is lifted under the joint control of the lifting motor 64 and the lifting cylinder 9. Then, the initial height of the assembled modular vehicle 2 is adjusted to 1.15m, and then it moves to the bottom of the beam support 3. At this time, the positions of the outer cylinder 61 at the bottom of the beam support 3 on both sides of the moving direction of the modular vehicle 2 remain unchanged.

[0045] The lifting device on the modular vehicle 2 lifts the entire beam support 3 in stages of 10%, 20%, ..., 100%. During the lifting process, the contact between the pad beam and the main beam on the bridge 1 and the stress changes of the components are constantly monitored.

[0046] S4, Bridge 1 Relocation To ensure the smooth transport of the upper beam, the road is temporarily closed. The beam is then lifted upwards by 10cm, and the lifting is done in stages: 1cm, 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, 9cm, and 10cm. The lifting speed is controlled between 20mm / min. The lifting device on the modular vehicle 2 separates the outer cylinder 61 at the bottom of the beam support 3 on both sides of the transport direction from the ground. Then, the modular vehicle 2 moves the bridge 1 onto the pier.

[0047] S5, removal of beam support 3 and dismantling of modular vehicle 2 After the bridge 1 is placed on the pier, the lifting device on the modular vehicle 2 lowers the beam support 3 to a suitable position. Then, the workers dismantle the beam support 3 and the modular vehicle 2, and transfer the dismantled parts through transportation equipment. Finally, the modular vehicle 2 is finely adjusted and corrected.

[0048] S6, Traffic Resumption The measures include removing barriers used to close off roads and restoring road markings.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A low-carbon control device for the overall transport of SPMT steel truss beams, characterized in that: The system includes a modular vehicle (2) and a beam support (3). The beam support (3) is located on top of the modular vehicle (2), and the bridge (1) is located on the beam support (3). The beam support (3) includes a support tube (4) and a connecting rod (5). Both ends of the connecting rod (5) are connected to the support tube (4). A lifting component (6) is provided between the modular vehicle (2) and the beam support (3). The lifting component (6) is used to adjust the distance between the modular vehicle (2) and the beam support (3).

2. The SPMT steel truss integral transportation low-carbon control device according to claim 1, characterized in that: Both ends of the support tube (4) are provided with flanges (7), and multiple connecting lugs (8) are provided on the circumferential outer wall of the support tube (4). The multiple connecting lugs (8) are evenly arranged circumferentially along the axis of the support tube (4), and the end of the connecting rod (5) is used to connect to the connecting lugs (8).

3. The SPMT steel truss integral transportation low-carbon control device according to claim 2, characterized in that: The lifting component (6) includes an outer cylinder (61) for fixing to the top of the module vehicle (2). An inner tube (62) is coaxially threaded inside the outer cylinder (61). A top plate (63) is rotatably connected to the top of the inner tube (62). The top plate (63) is detachably mounted on the flange (7). A lifting motor (64) electrically connected to the control system is mounted on the top plate (63). A gear ring (65) is coaxially sleeved on the top of the inner tube (62). A gear (66) meshing with the gear ring (65) is mounted on the output shaft of the lifting motor (64). A limited rotation tube (67) is mounted on the outer cylinder (61). A slide rod (68) is coaxially slidably mounted on the limited rotation tube (67). The slide rod (68) is mounted on the top plate (63).

4. The SPMT steel truss integral transportation low-carbon control device according to claim 3, characterized in that: The outer cylinder (61) is equipped with a lifting cylinder (9) that is electrically connected to the control system. The inner tube (62) is sleeved on the lifting cylinder (9). The top plate (63) is mounted on the piston rod of the lifting cylinder (9).

5. The SPMT steel truss integral transportation low-carbon control device according to claim 3, characterized in that: A retaining ring (10) is provided on the inner tube (62), and the retaining ring (10) is located between the toothed ring (65) and the top of the outer cylinder (61).

6. A construction method for a low-carbon control device for the integral transport of SPMT steel truss beams according to any one of claims 1-5, characterized in that: The process includes the following steps: S1, pre-construction preparation; S2, assembly of the modular vehicle (2), construction of the beam support (3) and assembly of the bridge (1); S3, lifting and moving of the bridge (1); S4, dismantling of the beam support (3) and disassembly of the modular vehicle (2).

7. The construction method for a low-carbon control device for the integral transport of SPMT steel truss beams according to claim 6, characterized in that: S1 includes the following steps: S11. The relocation route, assembly site and parking area of ​​the overpass bridge (1) shall be leveled, poured and hardened in accordance with the design requirements; S12. Existing structures on the relocation route shall be temporarily removed, and the pipelines under the relocation route shall be surveyed and reinforced; S13. Reflective markings shall be made on the ground according to the designed relocation route to facilitate the positioning and relocation of the modular vehicle (2), and anti-collision measures shall be taken for the structures during the relocation process; S14. The bridge piers shall be pre-cast at the designed installation location.

8. The construction method for a low-carbon control device for the integral transport of SPMT steel truss beams according to claim 6, characterized in that: S2 includes the following steps: S21. The modular vehicle (2) is assembled on the site road according to the design axis by a crane. S22. The beam support (3) is built on the site. S23. After the modular vehicle (2) is assembled, it drives into the bottom of the beam support (3). S24. A bridge (1) is built on the beam support (3).

9. The construction method for a low-carbon control device for the integral transport of SPMT steel truss beams according to claim 6, characterized in that: The S3 includes the following steps: S31, the module vehicle (2) lifts the beam support (3); S32, the module vehicle (2) lifts and drives the beam support (3) to a suitable height; S33, the module vehicle (2) controls the two ends of the bridge (1) to be moved to the piers.

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