Modularized large-tonnage wide-width steel box girder pushing system

Abstract

A modularized large-tonnage wide steel box girder pushing system belongs to the technical field of steel box girder pushing construction and comprises a pushing module, an information module, a control module and a monitoring module, the pushing module comprises a plurality of sets of independent pushing devices, and each set of pushing device is provided with a sensor array. The information module comprises a data acquisition unit, a data storage unit and a data transmission unit, the control module is configured to control the pushing device, and the data acquisition unit and the control module are electrically connected with the monitoring module through wires. According to the utility model, through modularized design, replaceable fittings included in each module, and cooperation with a general standard interface, rapid equipment assembly in multiple construction scenes can be realized, the equipment can be reused, the cost is saved, meanwhile, an intelligent control and remote monitoring system is added, the influence caused by factors such as weather is small, the monitoring precision is high, and the construction efficiency is high. And the automation degree and the construction safety of the pushing system during operation are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of steel box girder pushing construction, and particularly relates to a modular large-tonnage wide-width steel box girder pushing system. BACKGROUND

[0002] In a large-span bridge structure, a steel box girder is widely used due to its high strength, small weight and convenient construction, and becomes one of the main girder structures of a large-span bridge. A pushing construction method is a commonly used method for the construction of a large-span bridge because it does not need to erect a large-scale temporary support and is less affected by the environment. A large-span bridge means a large-tonnage girder, and a wide-width large-volume steel box girder is often used to increase the traffic capacity. When pushing at multiple points, high precision is required for the synchronization control between the multiple points. In the pushing process, the main monitoring method currently used is manual monitoring. For multiple control points of a large-volume steel box girder pushing, it is difficult to realize timely communication, and the overall state of the structure cannot be obtained in real time. Manual monitoring is easily affected by various interference factors and brings large errors. In the existing pushing system, the pushing equipment is usually customized for a single project, and it is difficult to be reused in other construction projects, which to some extent increases the economic cost and causes certain resource waste, and does not meet the green environmental protection demand of modern construction. CONTENT OF THE PRESENT APPLICATION

[0003] The present application discloses a modular large-tonnage wide-width steel box girder pushing system, and aims to solve the technical problems in the background art.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0005] A modular large-tonnage wide-width steel box girder pushing system, comprising a pushing module, an information module, a control module and a monitoring module, wherein the pushing module comprises multiple independent pushing devices, each of which is provided with a sensor array, the pushing device is connected with the steel box girder, the sensor array comprises multiple sensors installed on the steel box girder and the pushing device, the information module comprises a data acquisition unit, a data storage unit and a data transmission unit, the sensors are sequentially connected with the data storage unit through the data acquisition unit and the data transmission unit, the data acquisition unit is further connected with the control module through the data transmission unit, the control module is configured to control the pushing device, and the data acquisition unit and the control module are respectively connected with the monitoring module through wires.

[0006] Preferably, the control module comprises a data processing unit, a central control system and a distributed control unit which are sequentially connected, and the data acquisition unit is connected with the data processing unit through the data transmission unit.

[0007] Preferably, the monitoring module comprises a remote monitoring system and a manual operation system, the remote monitoring system is electrically connected with the data acquisition unit and the data processing unit through wires respectively, and the manual operation system is electrically connected with the distributed control unit through wires.

[0008] Preferably, the pushing device comprises a pushing support, a plurality of lifting hydraulic jacks arranged side by side along the front-rear direction on the left and right sides, a sliding beam, a supporting plate, and pushing hydraulic jacks, the lifting hydraulic jacks are arranged along the longitudinal direction, the fixed ends of the lifting hydraulic jacks are detachably fixedly connected with the top end of the pushing support, the telescopic ends are jointly detachably fixedly connected with the sliding beam, the top end of the sliding beam is provided with a sliding channel, the bottom end of the steel box girder is fixedly connected with the supporting plate, the supporting plate is slidably connected with the MGE plate, the portions of the left and right ends of the supporting plate extending outside the steel box girder are provided with a plurality of tooth grooves which are evenly distributed along the front-rear direction, the pushing hydraulic jacks are detachably fixedly connected with the left and right sides of the sliding beam along the front-rear direction, the piston rod ends of the pushing hydraulic jacks are fixedly connected with sliding blocks, the top end of each sliding block is provided with a sliding groove along the longitudinal direction, a ratchet block is slidably connected in the sliding groove, a compression spring is connected between the bottom end of the ratchet block and the groove bottom of the sliding groove, the shape and size of the ratchet block are matched with the tooth grooves, the top of the ratchet block is provided with an inclined surface at the rear end, and the inclined surface is used to extrude the ratchet block out of the tooth groove when the ratchet block is pulled backward.

[0009] Preferably, a plurality of limiting columns are fixedly connected with the two sides of the pushing support along the longitudinal direction, the top end of each limiting column is provided with a limiting mechanism, and the limiting columns and the limiting mechanisms on the left and right sides are respectively one-to-one opposite.

[0010] Preferably, the limiting mechanism comprises a limiting hydraulic cylinder, the fixed end of the limiting hydraulic cylinder is fixedly connected with the top end of the limiting column, and the telescopic end is ball-hinged with a push plate, the outside end of the push plate is provided with a linear sliding groove, the left and right ends of the supporting plate are respectively slidably connected with the corresponding linear sliding grooves, and the control module is configured to control the action of the limiting hydraulic cylinder.

[0011] Preferably, the sensors of the sensor array comprise displacement sensors arranged on the piston rods of the lifting hydraulic jacks and the pushing hydraulic jacks and arranged on the axis of the bottom end or the top end of the steel box girder, and pressure sensors are arranged on the cylinders of the lifting hydraulic jacks and the pushing hydraulic jacks and connected with hydraulic oil.

[0012] Preferably, the distributed control unit is configured to control the actions of the lifting hydraulic jacks, the pushing hydraulic jacks, and the limiting hydraulic cylinders.

[0013] The modular large-tonnage wide-width steel box girder pushing system has the following beneficial effects:

[0014] The novel device can realize rapid assembly of the device in multiple construction scenes, realize repeated use of the device to save cost, and has high monitoring precision and small influence of weather and other factors, thereby improving the automation degree and construction safety of the incremental launching system during operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The overall structure schematic diagram of the novel device.

[0016] Figure 2 The side view of the incremental launching device cooperating with the steel box girder.

[0017] Figure 3 The local structure schematic diagram of the novel device at A.

[0018] Figure 4 The local structure schematic diagram of the novel device at B.

[0019] Figure 5 The working principle schematic diagram of the incremental launching hydraulic jack of the novel device.

[0020] Figure 6 The working principle front view structure schematic diagram of the limiting hydraulic cylinder of the novel device.

[0021] Figure 7 The information transmission structure schematic diagram of the novel device.

[0022] 1, incremental launching module; 2, information module; 3, control module; 4, monitoring module; 41, remote monitoring system; 42, manual operation system; 5, steel box girder; 6, steel box girder moving direction; 7, incremental launching support; 8, gear slot; 9, guide wire; 10, incremental launching device; 11, incremental launching hydraulic jack; 12, incremental launching hydraulic jack; 13, limiting column; 131, limiting mechanism; 14, sensor array; 141, displacement sensor; 142, pressure sensor; 15, slide beam; 16, MGE plate; 17, slide; 18, top of ratchet block into clamping groove; 19, supporting plate; 20, sliding block; 21, data acquisition unit; 22, data transmission unit; 23, data storage unit; 24, ratchet block; 25, compression spring; 26, sliding groove; 27, limiting hydraulic cylinder; 28, push plate; 29, spherical hinge; 30, straight line sliding groove; 31, data processing unit; 32, central control system; 33, distributed control unit; 210, data centralized acquisition box; 222, signal transmitter; 223, signal receiver. DETAILED DESCRIPTION

[0023] The following description is only a preferred embodiment of the present application, and is not intended to limit the scope of protection of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

[0024] The following embodiments can be understood as part of the structure or method of the present application, or as part of the structure or method of the present application.

[0025] Embodiment 1

[0026] A modular large-tonnage wide-width steel box girder pushing system, as shown in Figure 1 , 7 , comprising a pushing module 1, an information module 2, a control module 3, and a monitoring module 4, the pushing module 1 comprising a plurality of independent pushing devices 10, each pushing device 10 being provided with a sensor array 14, the pushing device 10 being connected with the steel box girder 5 for longitudinal jacking and forward and backward pushing of the steel box girder 5; the sensor array 14 comprises a plurality of sensors mounted on the steel box girder 5 and the pushing device 10, the information module 2 comprising a data acquisition unit 21, a data storage unit 23, and a data transmission unit 22, the sensors being sequentially connected with the data acquisition unit 21, the data transmission unit 22, and the data storage unit 23, the data acquisition unit 21 being further connected with the control module 3 through the data transmission unit 22, the control module 3 being configured to control the pushing device 10, the control module 3 and the data acquisition unit 21 being respectively connected with the monitoring module 4 through the wire 9.

[0027] As shown in Figure 1 , the control module 3 comprises a data processing unit 31, a central control system 32, and a distributed control unit 33 connected in sequence, the data acquisition unit 21 being connected with the data processing unit 31 through the data transmission unit 22.

[0028] As shown in Figure 1 , the monitoring module 4 comprises a remote monitoring system 41 and a manual operation system 42, the remote monitoring system 41 being connected with the data acquisition unit 21 and the data processing unit 31 through the wire 9, the manual operation system 42 being connected with the distributed control unit 33 through the wire 9.

[0029] Embodiment 2

[0030] As shown in Figures 1-6As shown, the jacking device 10 includes a jacking support 7, multiple lifting hydraulic jacks 11 arranged side-by-side along the front-rear direction on the left and right sides, a slide beam 15, a support plate 19, and jacking hydraulic jacks 12. The lifting hydraulic jacks 11 are arranged longitudinally, and their fixed ends are detachably and fixedly connected to the top of the jacking support 7. Their telescopic ends are detachably and fixedly connected to the slide beam 15. The top of the slide beam 15 is provided with a slide 17, and the top of the slide 17 is fixedly provided with an MGE plate 16. The bottom end of the steel box girder 5 is fixedly connected to the support plate 19, which is slidably connected to the MGE plate 16. The left and right ends of the support plate 19 are connected to the slide beam 16. The bottom of the portion extending outward from the outer side of the steel box girder has several toothed grooves 8 evenly distributed along the front-back direction; the hydraulic jack 12 is detachably and fixedly connected to the left and right sides of the slide beam 15 along the front-back direction, and the piston rod end of the hydraulic jack 12 is fixedly connected to a slider 20. The top of the slider 20 is provided with a groove 26 along the longitudinal direction, and a ratchet block 24 is slidably connected in the groove 26. A compression spring 25 is connected between the bottom end of the ratchet block 24 and the bottom of the groove 26. The shape and size of the ratchet block 24 match the toothed grooves 8. The rear end of the top of the ratchet block 24 is provided with an inclined surface. The inclined surface is used to squeeze the ratchet block 24 out of the toothed grooves 8 when the ratchet block 24 is pulled backward.

[0031] Example 3

[0032] like Figures 1-6 As shown, several limiting posts 13 are fixedly connected to both sides of the push support 7 along the longitudinal direction. The top of the limiting post 13 is provided with a limiting mechanism 131. The limiting posts 13 and the limiting mechanisms 131 on the left and right sides are respectively opposite to each other.

[0033] like Figure 6 As shown, the limiting mechanism 131 includes a limiting hydraulic cylinder 27. The fixed end of the limiting hydraulic cylinder 27 is fixedly connected to the top of the limiting post 13. The telescopic end ball joint 29 has a push plate 28. The outer end of the push plate 28 is provided with a linear slide groove 30. The left and right ends of the support plate 19 are respectively slidably connected to the corresponding linear slide grooves 30. The control module 3 is configured to control the movement of the limiting hydraulic cylinder 27.

[0034] Example 4

[0035] like Figures 1-5 As shown, the sensors in the sensor array 14 include displacement sensors 141 located on the piston rods of the lifting hydraulic jack 11 and the pushing hydraulic jack 12, and on the bottom or top axis of the steel box girder. Pressure sensors 142 connected to hydraulic oil are provided on the cylinders of the lifting hydraulic jack 11 and the pushing hydraulic jack 12.

[0036] like Figures 1-7As shown, the distributed control unit 33 is configured to control the actions of the lifting hydraulic jack 11, the pushing hydraulic jack 12, and the limiting hydraulic cylinder 27.

[0037] The working principle of this new type:

[0038] 1. The lifting hydraulic jack 11, the pushing hydraulic jack 12, and the limiting hydraulic cylinder 27 can all be freely disassembled and assembled. For different construction scenarios, appropriate models of lifting hydraulic jack 11, pushing hydraulic jack 12, and limiting hydraulic cylinder 27 can be pre-assembled and directly installed and used after transportation to the site.

[0039] 2. The aforementioned jacking hydraulic jack 12 is installed on the slide beam 15 above the lifting hydraulic jack 11. The slide beam 15 is also equipped with a low-friction material MGE plate 16 to reduce friction and is fixed to the slide 17. When the lifting hydraulic jack extends, the slide beams on both sides are raised and the steel box girder is driven to the preset height. The jacking hydraulic jack extends and retracts intermittently. When it extends, the ratchet pushes the slot and drives the support plate forward. The support plate then drives the steel box girder forward. When it retracts, the ratchet disengages from the slot and enters the next slot. The extension and retraction actions are repeated to realize the staged forward jacking of the steel box girder.

[0040] 3. The limiting mechanism 131 can be remotely controlled by the distributed control unit 33. The one-to-one limiting mechanisms 131 are slidably connected to the two ends of the support plate 19 through the linear slide 30. The ball joint design can ensure that the ends of the linear slide 30 and the support plate 19 will not separate, providing position adjustment while also having a lateral guiding function. When adjusting the lateral position of the steel box girder 5, the corresponding limiting mechanisms 131 move synchronously to realize the displacement of the steel box girder to the left or right.

[0041] 4. The data acquisition unit 21 may be configured as a centralized data acquisition box 210. Each pressure sensor 142 and displacement sensor 141 is connected to the centralized data acquisition box 210. The interface adopts a standardized design, supports the access of multiple sensors, and facilitates centralized data acquisition and transmission during construction.

[0042] 5. For example Figure 7 As shown, the data transmission unit 22 includes an optical fiber 221, a signal transmitter 222, and a signal receiver 223, and can select the optimal data transmission method under different construction conditions.

[0043] 6. The data acquisition box 210 is connected to the sensor array 14 and transmits data to the control module 3 and the monitoring module 4 through the optical fiber 221 or the signal transmitter 222. It collects and provides feedback on the reaction force and displacement during jacking and pushing in real time to ensure the stability of the steel box girder 5.

[0044] 7、The data storage unit 23 is equipped with a high-capacity storage device 230 to store historical data and abnormal records collected during the jacking process.

[0045] 8、The data processing unit 31 processes the data transmitted by the information module 2 and judges the attitude of the steel box girder 5, and feeds back the results to the central control system 32 and the monitoring module 4.

[0046] 9、The distributed control unit 33 includes a high-sensitivity electromagnetic valve group 330 equipped with each jacking hydraulic jack 11, jacking hydraulic jack 12 and limiting hydraulic cylinder 27, supporting single-point precise control and multi-point synchronous action.

[0047] 10、The central control system 32 can intelligently control each independent jacking hydraulic jack 11 and jacking hydraulic jack 12 according to the feedback data, control the jacking and jacking speed, ensure that the jacking height and jacking mileage of each control point are within the specified error range, and ensure that the jacking and jacking are smooth.

[0048] 11、In the case of steel box girder 5 offset, the central control system 32 compares the data of the displacement sensor 141 on the steel box girder with the theoretical position data to determine the specific situation of the steel box girder 5 offset and control the limiting mechanism 131 to correct the deviation.

[0049] 12、The central control system 32 realizes the above intelligent control action through artificial intelligence algorithm, and the implementation method is that the central control system 32 calls the distributed control unit 33 for regulation and control through the optical fiber 221 or the signal transmitter 222.

[0050] 13、The remote monitoring system 41 provides a visual interface drawn by the feedback results of the information module 2 and the data processing unit 31, including the drawing of the girder attitude, the real-time change curve of the support reaction force, jacking force and jacking displacement of each jacking device 10.

[0051] 14、The remote monitoring system 41 is supervised by artificial real-time, and has the authority to independently adjust the distributed control unit 33 by using the artificial operation system 42.

[0052] It should be noted that the above data acquisition and transmission process for pressure and displacement is prior art, the monitoring of data acquisition is also prior art, and the action control of the control module on each jacking hydraulic jack 11, jacking hydraulic jack 12 and limiting hydraulic cylinder 27 is also prior art content. The method content not described in the new type is solved by the existing scheme.

Claims

1. A modularized large-tonnage wide-width steel box girder pushing system, characterized in that: The jacking module comprises multiple sets of independent jacking devices, each set of jacking device is provided with a sensor array, the jacking device is connected with the steel box girder, the sensor array comprises multiple sensors mounted on the steel box girder and the jacking device, the information module comprises a data acquisition unit, a data storage unit and a data transmission unit, the sensors are sequentially connected with the data storage unit through the data acquisition unit and the data transmission unit, the data acquisition unit is further connected with the control module through the data transmission unit, the control module is configured to control the jacking device, and the data acquisition unit and the control module are further respectively connected with the monitoring module through wires.

2. A modularized large-tonnage wide-width steel box girder pushing system according to claim 1, characterized in that: The control module comprises a data processing unit, a central control system and a distributed control unit which are sequentially connected, and the data acquisition unit is connected with the data processing unit through the data transmission unit.

3. A modularized large-tonnage wide-width steel box girder pushing system according to claim 2, characterized in that: The monitoring module comprises a remote monitoring system and a manual operation system, the remote monitoring system is connected with the data acquisition unit and the data processing unit through wires, and the manual operation system is connected with the distributed control unit through wires.

4. A modularized large-tonnage wide-width steel box girder pushing system according to claim 3, characterized in that: The jacking device comprises a jacking support, multiple jacking hydraulic jacks arranged side by side along the front-rear direction on the left and right sides, a sliding beam, a supporting plate and a jacking hydraulic jack, the jacking hydraulic jack is arranged in the longitudinal direction, the fixed end of the jacking hydraulic jack is detachably fixedly connected with the top end of the jacking support, the telescopic end is detachably fixedly connected with the sliding beam, the top end of the sliding beam is provided with a sliding channel, the top end of the sliding channel is fixedly provided with an MGE plate, the bottom end of the steel box girder is fixedly connected with the supporting plate, the supporting plate is slidably connected with the MGE plate, and the part of the bottom of the left and right ends of the supporting plate extending outside the steel box girder is evenly distributed with a plurality of tooth grooves in the front-rear direction; the jacking hydraulic jack is detachably fixedly connected on the left and right sides of the sliding beam in the front-rear direction, the piston rod end of the jacking hydraulic jack is fixedly connected with a sliding block, the top end of the sliding block is provided with a sliding groove in the longitudinal direction, the sliding groove is slidably connected with a ratchet block, a compression spring is connected between the bottom end of the ratchet block and the groove bottom of the sliding groove, the shape and size of the ratchet block are matched with the tooth groove, and the rear end of the top of the ratchet block is provided with an inclined surface.

5. A modularized large-tonnage wide-width steel box girder pushing system according to claim 4, characterized in that: The two sides of the jacking support are fixedly connected with a plurality of limiting columns in the longitudinal direction, the top end of the limiting column is provided with a limiting mechanism, and the limiting columns and the limiting mechanisms on the left and right sides are respectively one-to-one opposite.

6. A modularized large-tonnage wide-width steel box girder pushing system according to claim 5, characterized in that: The limiting mechanism comprises a limiting hydraulic cylinder, the fixed end of the limiting hydraulic cylinder is fixedly connected with the top end of the limiting column, and the telescopic end is ball-hinged with a push plate, the outer side end of the push plate is provided with a linear sliding groove, and the left and right ends of the supporting plate are respectively slidably connected with the corresponding linear sliding grooves, and the control module is configured to control the action of the limiting hydraulic cylinder.

7. A modularized large-tonnage wide-width steel box girder pushing system according to claim 6, characterized in that: The sensors of the sensor array include displacement sensors arranged on piston rods of the jacking hydraulic jack and the pushing hydraulic jack and arranged on axes of bottom ends or top ends of the steel box girder, and pressure sensors arranged on cylinders of the jacking hydraulic jack and the pushing hydraulic jack and connected with hydraulic oil.

8. A modularized large-tonnage wide-width steel box girder pushing system according to claim 7, characterized in that: The distributed control unit is configured to control actions of the jacking hydraulic jack, the pushing hydraulic jack and the limiting hydraulic cylinder.

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