Transportation Devices and Methods for Steel Reinforcement Components of Bridge Deck Box Girder

Abstract

This invention provides a device and method for transporting steel reinforcement components for bridge deck box girders. The device and method include: a box girder steel reinforcement component forming jig, set on a cast-in-place box girder; the jig comprising several evenly distributed split-type base plate binding jigs and movable web plate binding jigs located on both sides of the split-type base plate binding jigs; and a split-type transport vehicle, which consists of several liftable and interconnected transport units. By coordinating the split-type transport vehicle with the box girder steel reinforcement component forming jig, the box girder steel reinforcement components can be directly bound on the split-type transport vehicle, and the components can be directly lifted and transported by the lifting of the split-type transport vehicle. The entire system is extremely convenient to switch between, requiring no large hoisting equipment. Its lifting function can be effectively used in conjunction with the box girder steel reinforcement base plate jig and the cantilevered simply supported bridge erecting machine.

Description

Technical Field

[0001] This invention relates to the field of prefabricated construction of cast-in-place box girder reinforcement engineering, and in particular to a device and method for transporting box girder reinforcement components for bridge decks. Background Technology

[0002] Cast-in-place box girders offer excellent integrity, ease of construction, good appearance, and strong practicality, making them a commonly used construction technique for approach bridges. However, with the upgrading of equipment technology in prefabricated construction, the traditional back-end processing and on-site binding techniques for cast-in-place box girder reinforcement construction are no longer sufficient to meet the efficiency and safety requirements of modern bridge construction. Therefore, construction companies have begun to explore prefabricated construction techniques for cast-in-place box girder reinforcement engineering, adopting a method of prefabricating box girder reinforcement components at the rear and assembling the reinforcement structure on-site to improve the efficiency of on-site reinforcement binding.

[0003] The transportation and hoisting of box girder reinforcement components from the binding station to the on-site assembly station requires corresponding construction equipment and methods. However, since the construction process for cast-in-place box girder reinforcement components is a new technology, there is no specific supporting equipment available. Therefore, current methods for transporting and hoisting box girder reinforcement components often draw on the methods used for transporting and hoisting precast concrete box girders: girder transport vehicles and bridge erecting machines, along with their associated methods. One method involves binding the box girder reinforcement components on the girder transport vehicle and then transporting them to the on-site station for hoisting with the bridge erecting machine. Another method involves binding the reinforcement components on an integral jig, then hoisting them onto the girder transport vehicle and transporting them to the on-site station, where they are then hoisted by the bridge erecting machine.

[0004] The aforementioned equipment and processes used for precast concrete box girders are primarily designed to address the characteristics of concrete structures, such as poor tensile strength and heavy weight. To ensure uniform stress distribution on the concrete box girders, the girder transport vehicles are often integral structures, and the bridge erecting machines span at least two spans, significantly increasing project construction costs. In contrast, steel reinforcement components are primarily steel structures, with lighter overall weight and extremely high tensile strength. Therefore, using the same equipment and processes as conventional precast concrete would result in unnecessary cost waste. Thus, a method and device for transporting steel reinforcement components for bridge deck box girders is proposed to address these issues. Summary of the Invention

[0005] The main objective of this invention is to provide a transportation device and method for steel reinforcement components of bridge deck box girders, thereby solving the problem of high transportation costs faced by existing methods for transporting and hoisting steel reinforcement components of box girders.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a device and method for transporting steel reinforcement components for bridge deck box girders, comprising:

[0007] The box girder reinforcement component forming jig is set on the cast box girder. The box girder reinforcement component forming jig includes several evenly distributed split bottom plate binding jigs and movable web plate binding jigs located on both sides of the split bottom plate binding jigs.

[0008] The modular transport vehicle consists of several liftable and interconnected transport units, which are interspersed among several modular base plate binding frames.

[0009] The box girder steel reinforcement components are installed on top of the split transport vehicle and the split base plate binding frame;

[0010] Lifting equipment, fixed on top of the box girder reinforcement components, is used for lifting the box girder reinforcement components;

[0011] The cantilevered, simply supported bridge erecting machine is set up at the pre-set installation position of the box girder steel reinforcement components.

[0012] In a preferred embodiment, the movable web binding frame includes a web frame structure and casters located at the bottom of the web frame structure.

[0013] In a preferred embodiment, the transport unit includes a frame, a steering device fixed to the four corners of the bottom of the frame, an automatic lifting suspension device located at the bottom of the steering device, a hydraulic wheel assembly located at the bottom of the automatic lifting suspension device, and a lashing plate located on the top of the frame. The frame is equipped with a battery for power supply, a hydraulic station for providing kinetic energy, an inclination sensor for monitoring balance, a laser rangefinder for measuring distance, and a GPS positioning device for positioning.

[0014] The automatic lifting suspension device includes a connecting plate fixedly connected to the steering shaft of the steering device, a connecting piece with both ends hinged to the connecting plate and the hydraulic walking wheel set respectively, and a hydraulic cylinder hinged in the connecting piece and with its output end hinged to the hydraulic walking wheel set.

[0015] In a preferred embodiment, the cantilevered simply supported bridge erecting machine includes load-bearing legs, a load-bearing beam mounted on the load-bearing legs, and several mobile cranes suspended on the load-bearing beam.

[0016] In a preferred embodiment, the lifting device includes a crossbeam fixed to the top of the box girder reinforcement components, a lifting beam located at the top of the crossbeam, a lifting rod located at the bottom of the lifting beam and extendable through the crossbeam, and a tensioning cylinder located at the bottom of the lifting beam with its output shaft facing the crossbeam.

[0017] In a preferred embodiment, the crossbeam is provided with several vertical through holes for the lifting rod to pass through and horizontal through holes for fixing to the box girder reinforcement components. A spacing laser rangefinder is provided on the side of the crossbeam. A lifting lug is provided at the top center of the lifting beam. The lifting rod and the lifting beam are connected by a universal joint. The universal joint and the lifting beam are rotatably connected. An adaptive anchor claw is provided at the bottom of the lifting rod.

[0018] In a preferred embodiment, the bottom of the lifting beam is provided with a rotating seat, the rotating seat is provided with a downward-opening T-shaped rotating groove, and the top of the universal joint is fixed with a T-shaped rotating block located in the T-shaped rotating groove.

[0019] In the preferred embodiment, the adaptive anchor claw includes a thin connecting rod, a thick connecting rod, and a base that are sequentially fixed to the bottom end of the boom. The diameter of the thin connecting rod is smaller than that of the thick connecting rod and the boom. A telescopic ring and a tension spring are movably fitted on the outside of the thin connecting rod. The tension spring is located between the telescopic ring and the boom. Several anchor claws are hinged to the top of the base. The telescopic ring is hinged to the outside with the same number of connecting rods as the anchor claws. The other end of the connecting rod is hinged to the corresponding anchor claw.

[0020] The method includes:

[0021] S1. Bind the box girder steel reinforcement components. Lower the height of the split transport vehicle to the same height as the split base plate binding jig. Then, bind the box girder steel reinforcement components in the jig composed of the split base plate binding jig, the movable web plate binding jig, and the split transport vehicle. Then, evenly install several lifting devices on the top of the box girder steel reinforcement components.

[0022] S2. Transport and lifting: Move the movable web binding frames on both sides outwards respectively, and then raise the split transport vehicle to its highest position to lift the box girder steel reinforcement components as a whole. At this time, the height of the split transport vehicle is higher than the upper surface of the split bottom plate binding frame. During each stage of the lifting process, the height of each transport unit remains consistent.

[0023] S3. Transporting box girder steel reinforcement components: Split-type transport vehicles carry box girder steel reinforcement components across split-type base plate binding jigs and transport them from the binding station to the on-site installation station. During this process, GPS positioning devices are used to automatically control the movement and coarse positioning of each transport unit. On the other hand, laser range sensors detect the real-time distance between each transport unit to control the relative position of each transport unit. In addition, during the transportation process, tilt sensors on each transport unit detect the attitude of the transport unit in real time and use automatic lifting suspension devices to level it in real time, so that the upper surface of the transport unit always remains horizontal.

[0024] S4. Lifting the box girder steel reinforcement components: After the front end of the box girder steel reinforcement components arrives at the on-site installation position, use the mobile crane closest to the installation position to lift the first lifting device at the front end. Then, the first transport unit at the front end is lowered to its lowest position and moved from the side of the box girder steel reinforcement components to the very end of the split transport vehicle. Then, the remaining transport units of the split transport vehicle move forward, and the mobile crane connected to the lifting device moves forward synchronously. During the process, the speed of the split transport vehicle and the mobile crane remains equal.

[0025] S5. Repeat step S4 to gradually lift the corresponding lifting devices with the mobile crane, thereby feeding the box girder steel reinforcement components onto the cantilever simply supported bridge erecting machine. Then, the cantilever simply supported bridge erecting machine completes the lifting work of the box girder steel reinforcement components. At the same time, after each transport unit completes its work, it is reassembled into a split transport vehicle behind the box girder steel reinforcement components and returns to the binding position. When it reaches the binding position, the split transport vehicle must first be raised to the highest position, then cross the split bottom plate binding jig one by one to return to the original position, and then be lowered to the lowest position at the same height as the split bottom plate binding jig. Finally, it moves back to the movable web plate binding jig to bind the steel reinforcement components of the next box girder.

[0026] S6. Repeat steps S1-S5 to continue the lifting and transporting of the box girder steel reinforcement components.

[0027] In the preferred embodiment, the specific installation method of the lifting device is as follows:

[0028] S1. Install the crossbeams. Start from the rear end of the box girder steel reinforcement components and install the crossbeams sequentially from front to back. Use a spacing laser rangefinder to check the spacing between the crossbeams to ensure the accuracy of the crossbeam installation. During installation, tie the crossbeams to the top of the box girder steel reinforcement components through transverse perforations.

[0029] S2. Install the lifting beam and the hanger. Move the lifting beam to the top of the crossbeam so that the hanger passes through the corresponding vertical through hole. When the self-adaptive anchor passes through the vertical through hole and the box girder reinforcement component, the anchor is compressed by the pressure from below, thus passing through the vertical through hole and the box girder reinforcement component. When passing through the box girder reinforcement component, the angle of the hanger can be adjusted appropriately through the rotatable universal joint.

[0030] S3. Tension the adaptive anchor claws, activate the tensioning cylinder to lift the lifting beam, the boom, and the adaptive anchor claws, so that the anchor claws are anchored to the bottom of the box girder reinforcement components.

[0031] This invention provides a device and method for transporting steel reinforcement components for bridge deck box girders, which has the following beneficial effects:

[0032] 1. By setting up a split-type transport vehicle and a box girder steel reinforcement component forming jig, the box girder steel reinforcement components can be directly tied on the split-type transport vehicle, and the box girder steel reinforcement components can be directly lifted and transported by lifting the split-type transport vehicle. The conversion of the entire system is extremely convenient, without the need for large hoisting equipment. The method is simple, and its lifting function can be effectively used in conjunction with the box girder steel reinforcement bottom plate jig and the cantilever simply supported bridge erecting machine.

[0033] 2. The modular transport vehicle, composed of multiple transport units, offers high flexibility in transporting box girder steel reinforcement components. It also occupies less space and facilitates better coordination with cantilevered bridge erecting machines. Simply connect one set of mobile cranes to the box girder steel reinforcement components, and then disconnect one set of transport units from the same set. This allows for the gradual transfer of the box girder steel reinforcement components onto the mobile cranes, significantly improving safety. Furthermore, the transport units that have completed their transport work can be moved to the rear to avoid interfering with the subsequent hoisting of box girder steel reinforcement components. Additionally, the number of transport units can be quickly adjusted according to the needs of the box girder steel reinforcement components.

[0034] 3. By setting up a GPS positioning device, the transportation process can be automated, which can save some manpower. In addition, the laser rangefinder can effectively control the distance between each transportation unit to prevent damage to the box girder steel reinforcement components. Furthermore, the tilt sensor ensures that the transportation unit remains level during transportation. Attached Figure Description

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0036] Figure 1 This is a schematic diagram of the split-type base plate binding frame and the movable web plate binding frame structure of the present invention.

[0037] Figure 2 This is a side view of the split-type base plate binding frame structure of the present invention;

[0038] Figure 3 This is a diagram of the binding structure of the box girder reinforcement components of the present invention;

[0039] Figure 4 This is a structural diagram of the split-type transport vehicle of the present invention;

[0040] Figure 5 This is a structural diagram of the transport unit of the present invention;

[0041] Figure 6 This is a schematic diagram of the automatic lifting and suspension device of the present invention in the raised state;

[0042] Figure 7 This is a schematic diagram of the automatic lifting and suspension device of the present invention in the lowered state;

[0043] Figure 8 This is a structural diagram of the vehicle frame of the present invention;

[0044] Figure 9 This is a structural diagram of the cantilever simply supported bridge erecting machine of the present invention;

[0045] Figure 10 This is a structural diagram of the lifting device of the present invention;

[0046] Figure 11 This is a structural diagram of the beam of the present invention;

[0047] Figure 12 This is a structural diagram of the connection between the lifting beam, the suspension rod, and the adaptive anchor claw of the present invention;

[0048] Figure 13 This is a structural diagram of the lifting rod of the present invention;

[0049] Figure 14 This is the present invention. Figure 13 Enlarged view of the A-structure;

[0050] Figure 15 This is the present invention. Figure 13 Enlarged view of the B-structure;

[0051] Figure 16 This is a schematic diagram of the binding of the box girder reinforcement components according to the method of the present invention;

[0052] Figure 17 This is a schematic diagram of the transportation and lifting method of the present invention;

[0053] Figure 18 This is a schematic diagram illustrating the method of transporting the equipment to the on-site installation station according to the present invention.

[0054] Figure 19 This is a schematic diagram of the hoisting of the mobile crane closest to the installation position and the first lifting device in the method of the present invention;

[0055] Figure 20 This is a schematic diagram of the hoisting of the box girder steel reinforcement components and the movement of the foremost transport unit to the farthest end using the method of the present invention;

[0056] Figure 21 This is a schematic diagram illustrating the sequential lifting of the mobile crane and lifting equipment according to the method of the present invention;

[0057] Figure 22 This is a schematic diagram of the transport units moving sequentially to the last position in the method of the present invention;

[0058] Figure 23 This is a schematic diagram of the overall return of the split-type transport vehicle of the present invention;

[0059] Figure 24 This is a schematic diagram of the lateral movement of the split-type transport vehicle of the present invention;

[0060] In the diagram: 1. Split-type base plate binding frame; 2. Movable web plate binding frame; 201. Casters; 202. Web plate frame structure; 3. Split-type transport vehicle; 301. Transport unit; 3010. Hydraulic walking wheel set; 3011. Automatic lifting suspension device; 3012. Steering device; 3013. Frame; 3014. Binding plate; 4. Cantilever simply supported bridge erecting machine; 401. Load-bearing leg; 402. Load-bearing beam; 403. Mobile crane; 5. Box girder reinforcement components; 6. Lifting tool; 7. Battery; 8. Hydraulic station; 9. Inclination sensor; 10. Laser rangefinder sensor. GPS positioning device 11; crossbeam 601; vertical perforation 6011; spacing laser rangefinder 6012; horizontal perforation 6013; lifting beam 602; lifting lug 6020; rotating seat 6021; T-shaped rotating groove 6022; tensioning cylinder 603; lifting rod 604; adaptive anchor claw 605; thin connecting rod 6051; thick connecting rod 6052; base 6053; tension spring 6054; telescopic ring 6055; connecting rod 6056; anchor claw 6057; universal joint 606; T-shaped rotating block 6061. Detailed Implementation

[0061] Example 1

[0062] like Figure 1-9 As shown, a bridge deck box girder steel reinforcement component transportation device addresses the high costs associated with traditional transportation tools and methods due to the structural characteristics of box girder steel reinforcement. A novel transportation system and method are proposed, where box girder steel reinforcement components are tied to a split-type base plate binding frame and a split-type transport vehicle. The split-type transport vehicle then transports the steel reinforcement components to the on-site work station. Finally, in collaboration with a cantilevered simply supported bridge erecting machine, the steel reinforcement components are hoisted point by point. Compared to traditional concrete beam equipment and methods, this significantly reduces project costs.

[0063] Specifically, it includes:

[0064] The box girder reinforcement component forming jig is set on the cast-in-place box girder. The box girder reinforcement component forming jig includes several evenly distributed split-type bottom plate binding jigs 1 and movable web plate binding jigs 2 located on both sides of the split-type bottom plate binding jigs 1.

[0065] In this embodiment, the movable web binding frame 2 includes a web frame structure 202 and casters 201 fixed to the bottom of the web frame structure 202. The web frame structure 202 can be moved by the casters 201 at the bottom. After the box girder reinforcement components 5 are bound, the movable web binding frames 2 on both sides can be moved outward to facilitate the lifting and transportation of the box girder reinforcement components 5. In this embodiment, the number of split bottom plate binding frames 1 is five.

[0066] The split-type transport vehicle 3 is composed of several liftable and interconnected transport units 301. The transport units 301 are interspersed in several split-type base plate binding frames 1 and can be combined with each other to transport the box girder steel reinforcement components 5.

[0067] In this embodiment, the transport unit 301 includes a frame 3013, a steering device 3012 fixed to the four corners of the bottom of the frame 3013, an automatic lifting suspension device 3011 disposed at the bottom of the steering device 3012, a hydraulic walking wheel set 3010 disposed at the bottom of the automatic lifting suspension device 3011, and a binding plate 3014 disposed at the top of the frame 3013.

[0068] The binding plate 3014 is fixed to the frame 3013 with bolts and can be quickly replaced according to the steel reinforcement components of different sizes.

[0069] In this embodiment, the steering device 3012 consists of a steering motor and a steering reducer. The output shaft of the steering motor is connected to the input end of the steering reducer, and the output end of the steering reducer is fixed to the top of the automatic lifting suspension device 3011, so that the automatic lifting suspension device 3011 and the hydraulic walking wheel set 3010 can rotate 360° around the output end of the steering reducer. In addition, the drive actuator of the hydraulic walking wheel set 3010 is a hydraulic motor.

[0070] It should be noted that the width of the transport unit 301 is wider than the width of the split base plate binding frame 1, and the hydraulic walking wheel sets 3010 on both sides are located on the outside of the split base plate binding frame 1 to avoid being unable to cross due to interference from the split base plate binding frame 1.

[0071] In addition, the frame 3013 is a frame structure welded from a base plate and rectangular steel tubes. The frame 3013 has a built-in battery 7 for power supply, a hydraulic station 8 for providing kinetic energy, an inclination sensor 9 for monitoring balance, and a GPS positioning device 11 for positioning. Laser rangefinders 10 for measuring distance are fixed at the center of the crossbeams on both the front and rear sides of the frame 3013.

[0072] Among them, the storage battery 7 is electrically connected to the hydraulic station 8, tilt sensor 9, GPS positioning device 11, laser rangefinder 10 and steering device 3012, and the hydraulic station 8 is connected to the hydraulic walking wheel set 3010 and automatic lifting suspension device 3011 through transmission.

[0073] It should be noted that the battery 7, hydraulic station 8, tilt sensor 9, GPS positioning device 11, laser rangefinder 10 and steering device 3012 are electrically connected to the controller, and the controller receives signals and controls the operation of the above-mentioned actuators.

[0074] In use, based on the tilt angle data from the tilt angle sensor 9, the control system can convert it into the stroke of the built-in hydraulic cylinders of each automatic lifting suspension device 3011. By controlling the stroke of each hydraulic cylinder, the leveling function of the modular vehicle is finally realized; this is the leveling control system. Based on the built-in GPS positioning device 11, the position of each transport unit 301 can be located. On the one hand, it is used to realize the self-propelled function of the individual transport unit 301. On the other hand, when multiple transport units 301 work together, it can play a certain feedback and control role in the coordinated control of each transport unit 301. Based on the laser rangefinder 10 equipped at the center of the front and rear crossbeams of the transport unit 301, the transport unit 301 can detect the distance between itself and the adjacent transport unit 301, and then control the distance.

[0075] The automatic lifting suspension device 3011 includes a connecting plate fixedly connected to the steering shaft of the steering device 3012, a connecting piece with both ends respectively hinged to the connecting plate and the hydraulic walking wheel set 3010, and a hydraulic cylinder hinged in the connecting piece with its output end hinged to the hydraulic walking wheel set 3010. The hydraulic cylinder extends and retracts under the control of the hydraulic station 8, thereby adjusting the height of the frame 3013.

[0076] The box girder steel reinforcement component 5 is set on top of the split transport vehicle 3 and the split base plate binding frame 1.

[0077] The lifting device 6 is fixed on the top of the box girder steel reinforcement component 5 and is used for lifting the box girder steel reinforcement component 5.

[0078] The cantilevered simply supported bridge erecting machine 4 is set at the preset installation position of the box girder steel reinforcement component 5.

[0079] In this embodiment, the main body of the simply supported part of the cantilever simply supported bridge erecting machine 4 occupies the length of one span of the cast-in-place span, and a cantilever extends out from the left end. The cantilever simply supported bridge erecting machine 4 includes a load-bearing leg 401, a load-bearing beam 402 fixed on the load-bearing leg 401, and several mobile cranes 403 that are movably hung on the load-bearing beam 402.

[0080] Example 2

[0081] Further explanation in conjunction with Example 1, such as Figure 16-24 The method for transporting the steel reinforcement components for the bridge deck box girder shown includes:

[0082] S1. Tie the box girder steel reinforcement component 5. Lower the height of the split transport vehicle 3 to the same height as the split base plate binding frame 1. Then tie the box girder steel reinforcement component 5 in the frame composed of the split base plate binding frame 1, the movable web plate binding frame 2 and the split transport vehicle 3. Then evenly install several lifting devices 6 on the top of the box girder steel reinforcement component 5.

[0083] S2. Transport and lifting: Move the movable web binding frame 2 on both sides outwards respectively, and then raise the split transport vehicle 3 to the highest position to lift the box girder steel reinforcement component 5 as a whole. At this time, the height of the split transport vehicle 3 is higher than the upper surface of the split bottom plate binding frame 1. During each stage of the lifting process, each transport unit 301 maintains the same height.

[0084] S3, transport box girder steel reinforcement components 5, the split-type transport vehicle 3 carries the box girder steel reinforcement components 5 across the split-type base plate binding frame 1, and transports them from the binding station to the on-site installation station. During this process, the GPS positioning device 11 performs automatic walking control and coarse positioning control on each transport unit 301. On the other hand, the laser range sensor 10 detects the real-time distance between each transport unit 301, and then controls the relative position of each transport unit 301. In addition, during the transportation process, the tilt sensor 9 on each transport unit 301 detects the attitude of the transport unit 301 in real time, and performs real-time leveling through the automatic lifting suspension device 3011, so that the upper surface of the transport unit 301 always remains horizontal.

[0085] S4. Lifting the box girder steel reinforcement component 5: After the front end of the box girder steel reinforcement component 5 arrives at the on-site installation position, the mobile crane 403 closest to the installation position is used to lift the first lifting device 6 at the front end. Then, the first transport unit 301 at the front end is lowered to its lowest position and moves from the side of the box girder steel reinforcement component 5 to the end of the split transport vehicle 3. Then, the remaining transport units 301 of the split transport vehicle 3 move forward, and the mobile crane 403 connected to the lifting device 6 moves forward synchronously. During the process, the speed of the split transport vehicle 3 and the mobile crane 403 is kept equal.

[0086] S5. Repeat step S4 to gradually lift the corresponding lifting device 6 by the mobile crane 403, thereby feeding the box girder steel reinforcement component 5 onto the cantilever simply supported bridge erecting machine 4. Then, the cantilever simply supported bridge erecting machine 4 completes the lifting work of the box girder steel reinforcement component 5. At the same time, after each transport unit 301 completes its work, it is reassembled into a split transport vehicle 3 behind the box girder steel reinforcement component 5 and returns to the binding position. When it reaches the binding position, the split transport vehicle 3 must first be raised to the highest position, then cross the split bottom plate binding jig 1 one by one to return to the original position, and then be lowered to the lowest position with the same height as the split bottom plate binding jig 1. Finally, it moves back to the movable web plate binding jig 2 to bind the steel reinforcement component of the next box girder.

[0087] S6. Repeat steps S1-S5 to continue the lifting and transporting of the box girder steel reinforcement component 5.

[0088] In the preferred embodiment, if one binding station supplies two box girder on-site stations, the split transport vehicle 3 can use the steering device 3012 to rotate the hydraulic walking wheel set 3010 by 90°, use the lateral walking function, and add the content of walking to another span in step S3, while the other steps remain unchanged.

[0089] Example 3

[0090] Further explanation in conjunction with Example 1, such as Figure 10-15 As shown, the lifting device 6 includes a crossbeam 601 fixed to the top of the box girder reinforcement component 5, a lifting beam 602 located at the top of the crossbeam 601, a lifting rod 604 located at the bottom of the lifting beam 602 and extendable through the crossbeam 601, and a tensioning cylinder 603 located at the bottom of the lifting beam 602 with its output shaft facing the crossbeam 601.

[0091] In this embodiment, there are four booms 604. It should be noted that the length of the booms 604 can be adjusted as needed.

[0092] In the preferred embodiment, the crossbeam 601 is provided with several vertical through holes 6011 for the hanger rod 604 to pass through and horizontal through holes 6013 for fixing to the box girder reinforcement component 5. The number of vertical through holes 6011 is adapted to the number of hanger rods 604, and the diameter of the vertical through holes 6011 is at least twice the diameter of the hanger rod 604. A spacing laser rangefinder 6012 is fixed on the side of the crossbeam 601 for measuring the spacing between adjacent crossbeams 601. A lifting lug 6020 is fixed at the top center of the lifting beam 602. The hanger rod 604 and the lifting beam 602 are connected by a universal joint 606. The universal joint 606 and the lifting beam 602 are rotatably connected, which facilitates small-amplitude adjustment of the insertion angle of the hanger rod 604 and avoids the inability to pass through the box girder reinforcement component 5. An adaptive anchor claw 605 is provided at the bottom of the hanger rod 604.

[0093] The bottom of the lifting beam 602 is fixedly provided with a rotating seat 6021, and the rotating seat 6021 is provided with a downward-opening T-shaped rotating groove 6022. The top of the universal joint 606 is fixedly provided with a T-shaped rotating block 6061 located in the T-shaped rotating groove 6022, so that the top of the universal joint 606 can rotate under the lifting beam 602.

[0094] In a preferred embodiment, the adaptive anchor claw 605 includes a thin connecting rod 6051, a thick connecting rod 6052, and a base 6053, which are sequentially fixed to the bottom end of the boom 604. The diameter of the thin connecting rod 6051 is smaller than that of the thick connecting rod 6052 and the boom 604. A telescopic ring 6055 and a tension spring 6054 are movably fitted on the outside of the thin connecting rod 6051. The inner diameters of the telescopic ring 6055 and the tension spring 6054 are both smaller than those of the thick connecting rod 6052 and the boom 604. The tension spring 6054 is located between the telescopic ring 6055 and the boom 604. Several anchor claws 6057 are hinged to the top of the base 6053. The telescopic ring 6055 is hinged to the outside with the same number of connecting rods 6056 as the anchor claws 6057. The other end of the connecting rod 6056 is hinged to the corresponding anchor claw 6057. In this embodiment, there are five connecting rods 6056 and five anchor claws 6057.

[0095] When in use, when the anchor claw 6057 is subjected to a force from below, the connecting rod 6056 pushes the telescopic ring 6055 to compress the tension spring 6054, thereby achieving the effect of retracting the anchor claw 6057. This makes it easier for the anchor claw 6057 to pass through the vertical through hole 6011 and the hole on the box girder steel reinforcement component 5. After passing through, it quickly opens due to the tension of the tension spring 6054. At the same time, when the top of the anchor claw 6057 contacts the box girder steel reinforcement component 5, it can be quickly anchored.

[0096] The specific installation method is as follows:

[0097] S1. Install the crossbeams 601. Start from the rear end of the box girder steel reinforcement component 5 and install the crossbeams 601 sequentially from the front. Use a laser distance measuring instrument 6012 to detect the spacing between the crossbeams 601 to ensure the accuracy of the crossbeam installation. During installation, use the transverse through-holes 6013 to tie the crossbeams 601 to the top of the box girder steel reinforcement component 5.

[0098] S2. Install the lifting beam 602 and the hanger 604. Move the lifting beam 602 to the top of the crossbeam 601 so that the hanger 604 passes through the corresponding vertical through hole 6011. When the adaptive anchor 605 passes through the vertical through hole 6011 and the box girder steel reinforcement component 5, the anchor 6057 is compressed by the pressure from below, thus passing through the vertical through hole 6011 and the box girder steel reinforcement component 5. When passing through the box girder steel reinforcement component 5, the angle of the hanger 604 can be adjusted appropriately through the rotatably connected universal joint 606.

[0099] S3. Tension the adaptive anchor claw 605, start the tensioning cylinder 603, so that the lifting beam 602 drives the lifting rod 604 and the adaptive anchor claw 605 to lift up, so that the anchor claw 6057 is anchored to the bottom of the box girder steel reinforcement component 5.

[0100] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A transport device for steel reinforcement components of bridge deck box girders, characterized in that, include: The box girder reinforcement component forming jig is set on the box girder that has been poured. The box girder reinforcement component forming jig includes several evenly distributed split bottom plate binding jigs (1) and movable web plate binding jigs (2) located on both sides of the split bottom plate binding jigs (1). The split-type transport vehicle (3) is composed of several liftable and interconnected transport units (301), which are interspersed in several split-type base plate binding frames (1). The box girder steel reinforcement component (5) is set on top of the split transport vehicle (3) and the split base plate binding frame (1); The lifting device (6) is fixed on the top of the box girder steel reinforcement component (5) and is used for lifting the box girder steel reinforcement component (5); The cantilevered simply supported bridge erecting machine (4) is set at the preset installation position of the box girder steel reinforcement component (5); When binding the box girder steel reinforcement components (5), the height of the split transport vehicle (3) is reduced to the same height as the split bottom plate binding frame (1), and then the box girder steel reinforcement components (5) are bound in the frame composed of the split bottom plate binding frame (1), the movable web plate binding frame (2) and the split transport vehicle (3). The transport unit (301) includes a frame (3013), a steering device (3012) fixed at the four corners of the bottom of the frame (3013), an automatic lifting suspension device (3011) set at the bottom of the steering device (3012), a hydraulic walking wheel set (3010) set at the bottom of the automatic lifting suspension device (3011), and a binding plate (3014) set at the top of the frame (3013). The frame (3013) is equipped with an inclination sensor (9), a laser rangefinder (10) and a GPS positioning device (11). The GPS positioning device (11) performs automatic walking control and coarse positioning control on each transport unit (301). The laser rangefinder (10) detects the real-time distance between each transport unit (301). The inclination sensor (9) on each transport unit (301) detects the attitude of the transport unit (301) in real time. The automatic lifting suspension device (3011) performs real-time leveling to keep the upper surface of the transport unit (301) horizontal.

2. The bridge deck box girder steel reinforcement component transportation device according to claim 1, characterized in that: The movable web binding frame (2) includes a web frame structure (202) and casters (201) located at the bottom of the web frame structure (202).

3. The bridge deck box girder steel reinforcement component transportation device according to claim 1, characterized in that: The chassis (3013) is equipped with a battery (7) for power supply and a hydraulic station (8) for providing kinetic energy. The automatic lifting suspension device (3011) includes a connecting plate fixedly connected to the steering shaft of the steering device (3012), a connecting piece with both ends respectively hinged to the connecting plate and the hydraulic walking wheel set (3010), and a hydraulic cylinder hinged in the connecting piece and with its output end hinged to the hydraulic walking wheel set (3010).

4. The bridge deck box girder steel reinforcement component transportation device according to claim 1, characterized in that: The cantilever simply supported bridge erecting machine (4) includes a load-bearing leg (401), a load-bearing beam (402) set on the load-bearing leg (401), and several mobile cranes (403) suspended on the load-bearing beam (402).

5. The bridge deck box girder steel reinforcement component transport device according to claim 4, characterized in that: The lifting device (6) includes a crossbeam (601) fixed on the top of the box girder reinforcement component (5), a lifting beam (602) located on the top of the crossbeam (601), a lifting rod (604) located at the bottom of the lifting beam (602) and extendable through the crossbeam (601), and a tensioning cylinder (603) located at the bottom of the lifting beam (602) with its output shaft facing the crossbeam (601).

6. The bridge deck box girder steel reinforcement component transportation device according to claim 5, characterized in that: The crossbeam (601) is provided with several vertical through holes (6011) for the rod (604) to pass through and horizontal through holes (6013) for fixing to the box girder steel reinforcement components (5). A laser rangefinder (6012) is provided on the side of the crossbeam (601). A lifting lug (6020) is provided at the top center of the lifting beam (602). The rod (604) and the lifting beam (602) are connected by a universal joint (606). The universal joint (606) and the lifting beam (602) are rotatably connected. An adaptive anchor claw (605) is provided at the bottom of the rod (604). The bottom of the lifting beam (602) is provided with a rotating seat (6021), and the rotating seat (6021) is provided with a downward-opening T-shaped rotating groove (6022). The top of the universal joint (606) is fixed with a T-shaped rotating block (6061) located in the T-shaped rotating groove (6022).

7. The bridge deck box girder steel reinforcement component transport device according to claim 6, characterized in that: The adaptive anchor claw (605) includes a thin connecting rod (6051), a thick connecting rod (6052), and a base (6053) that are sequentially fixed to the bottom end of the boom (604). The diameter of the thin connecting rod (6051) is smaller than that of the thick connecting rod (6052) and the boom (604). The thin connecting rod (6051) is externally fitted with a telescopic ring (6055) and a tension spring (6054). The tension spring (6054) is located between the telescopic ring (6055) and the boom (604). The top of the base (6053) is hinged with several anchor claws (6057). The telescopic ring (6055) is externally hinged with the same number of connecting rods (6056) as the anchor claws (6057). The other end of the connecting rod (6056) is hinged to the corresponding anchor claw (6057).

8. The transportation method of the bridge deck box girder steel reinforcement component transportation device according to claim 7, characterized in that: The method includes: S1. Tie the box girder steel reinforcement components (5), lower the height of the split transport vehicle (3) to the same height as the split base plate binding frame (1), and then tie the box girder steel reinforcement components (5) in the frame composed of the split base plate binding frame (1), the movable web plate binding frame (2) and the split transport vehicle (3). Then, evenly install several lifting devices (6) on the top of the box girder steel reinforcement components (5). S2. Transport and lifting: Move the movable web binding frame (2) on both sides outwards respectively, and then raise the split transport vehicle (3) to the highest position to lift the box girder steel reinforcement component (5) as a whole. At this time, the height of the split transport vehicle (3) is higher than the upper surface of the split bottom plate binding frame (1). During each stage of the lifting process, the height of each transport unit (301) remains consistent. S3, transport box girder steel reinforcement components (5), split-type transport vehicle (3) transports box girder steel reinforcement components (5) across split-type base plate binding frame (1), and transports them from the binding station to the on-site installation station. During this process, the GPS positioning device (11) performs automatic walking control and coarse positioning control on each transport unit (301). On the other hand, the laser distance sensor (10) detects the real-time distance between each transport unit (301), thereby controlling the relative position of each transport unit (301). In addition, during the transportation process, the tilt sensor (9) on each transport unit (301) detects the attitude of the transport unit (301) in real time, and performs real-time leveling through the automatic lifting suspension device (3011) so that the upper surface of the transport unit (301) remains horizontal. S4. Lifting the box girder steel reinforcement component (5): After the front end of the box girder steel reinforcement component (5) arrives at the installation site, the mobile crane (403) closest to the installation site is used to lift the first lifting device (6) at the front end. Then the first transport unit (301) at the front end is lowered to the lowest state and moves from the side of the box girder steel reinforcement component (5) to the end of the split transport vehicle (3). Then the remaining transport units (301) of the split transport vehicle (3) move forward, and the mobile crane (403) connected to the lifting device (6) moves forward synchronously. During the process, the speed of the split transport vehicle (3) and the mobile crane (403) remains equal. S5. Repeat step S4 to gradually lift the corresponding lifting device (6) of the mobile crane (403) so as to feed the box girder steel reinforcement component (5) to the cantilever simply supported bridge erecting machine (4). Then, the cantilever simply supported bridge erecting machine (4) completes the lifting work of the box girder steel reinforcement component (5). At the same time, after each transport unit (301) completes its work, it is reassembled into a split transport vehicle (3) behind the box girder steel reinforcement component (5) and returns to the binding position. When the binding position is reached, the split transport vehicle (3) must first be raised to the highest state, and then cross the split bottom plate binding frame (1) one by one to return to the original position. Then, it is lowered to the lowest state and the same height as the split bottom plate binding frame (1). Finally, it is moved back to the movable web plate binding frame (2) to bind the steel reinforcement component of the next box girder. S6. Repeat steps S1-S5 to continue the lifting and transporting of the box girder steel reinforcement components (5).

9. The transportation method of the bridge deck box girder steel reinforcement component transportation device according to claim 8, characterized in that: When one binding station supplies two box girder on-site stations, the split transport vehicle (3) can use the steering device (3012) to rotate the hydraulic walking wheel set (3010) by 90°, use the lateral walking function, and add the content of walking to another span in step S3, while the rest of the steps remain unchanged.

10. The transportation method of the bridge deck box girder steel reinforcement component transportation device according to claim 8, characterized in that: The specific installation method of the lifting device (6) is as follows: S1. Install the crossbeam (601). Start from the rear end of the box girder reinforcement component (5) and install the crossbeam (601) forward in sequence. Use a spacing laser rangefinder (6012) to detect the spacing between the crossbeams (601) to ensure the accuracy of the crossbeam (601) installation. During installation, use transverse through-holes (6013) to tie the crossbeam (601) to the top of the box girder reinforcement component (5). S2. Install the lifting beam (602) and the boom (604). Move the lifting beam (602) to the top of the crossbeam (601) so that the boom (604) passes through the corresponding vertical through hole (6011). When the adaptive anchor (605) passes through the vertical through hole (6011) and the box girder reinforcement component (5), the anchor (6057) is compressed by the pressure from below, thus passing through the vertical through hole (6011) and the box girder reinforcement component (5). When passing through the box girder reinforcement component (5), the angle of the boom (604) can be adjusted appropriately through the rotatable universal joint (606). S3. Tension the adaptive anchor claw (605), start the tensioning cylinder (603), so that the lifting beam (602) drives the boom (604) and the adaptive anchor claw (605) to lift up, so that the anchor claw (6057) is anchored to the bottom of the box girder steel reinforcement component (5).

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