Overhead bridge crane for construction of viaducts and method of construction thereof

Abstract

The application discloses a crane for overpass spanning construction and a construction method thereof, which comprises a support frame arranged on a bearing platform, a hoisting device arranged on the support frame, a track device arranged between the support frame and the hoisting device, and the hoisting device is relatively moved with the support frame through the track device; the hoisting device comprises a moving frame, a pull-up groove and a hoisting vehicle which are arranged on the moving frame and at least partially arranged in the pull-up groove, and the hoisting vehicle is slidingly connected with the pull-up groove; wherein, a monitoring device is arranged on the hoisting device, the moving frame has at least one first monitoring end, the monitoring device comprises a first monitoring belt arranged on the first monitoring end, a second monitoring belt integrated on the hoisting vehicle, and a monitoring hub; the application can improve the speed and quality of bridge construction, reduce the shaking and unstable factors in the construction process, and improve the safety of construction; meanwhile, accurate data support can be provided, the construction scheme can be adjusted in time, and the smooth progress of the construction process is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of viaduct construction, in particular to a crane for viaduct crossing construction and a construction method thereof. BACKGROUND

[0002] The crane for viaduct crossing construction is a large-scale lifting equipment specially used for bridge construction. It can perform horizontal movement and vertical lifting operations on the bridge deck. This crane has the characteristics of compact structure, flexible operation, and strong load-bearing capacity, and is particularly suitable for the construction of large-scale bridges. During bridge construction, the crane for viaduct crossing construction is mainly used for lifting heavy objects such as beam segments, bridge deck paving materials, and construction equipment. Through precise control and adjustment, the crane can accurately place heavy objects at designated positions, thereby ensuring the smooth progress of bridge construction.

[0003] However, the operation process of the crane for viaduct crossing construction is relatively complex and requires professional operators to perform precise control and adjustment. At the same time, since the crane operates on the bridge deck, there are certain safety hazards. For example, the cranes disclosed in Chinese Patent No. 109267491 and Chinese Patent No. 118704389 have the above-mentioned problems.

[0004] Therefore, a new crane for viaduct crossing construction and a construction method thereof are needed, which can improve the speed and quality of bridge construction, reduce the shaking and instability factors during construction, and improve the safety of construction. At the same time, it can provide accurate data support to facilitate timely adjustment of the construction plan and ensure the smooth progress of the construction process. SUMMARY

[0005] The present application provides a crane for viaduct crossing construction, which is used for bridge erection. The bridge includes a pile cap, a pier column arranged on the pile cap, and a beam segment erected on the pier column by the crane for viaduct crossing construction.

[0006] The crane for viaduct crossing construction includes a support frame arranged on the pile cap, a lifting device provided on the support frame, and a track device provided between the support frame and the lifting device. The lifting device moves relative to the support frame through the track device.

[0007] The lifting device includes a moving frame, a pull-up slot provided on the moving frame, and a lifting vehicle at least partially arranged in the pull-up slot. The lifting vehicle is slidingly connected to the pull-up slot.

[0008] The lifting device is provided with a monitoring device. The moving frame has at least one first monitoring end. The monitoring device includes a first monitoring belt provided on the first monitoring end, a second monitoring belt integrated on the lifting vehicle, and a monitoring hub.

[0009] The application also provides a construction method of the overhead bridge crossing construction crane, adopts the overhead bridge crossing construction crane, and the construction method comprises the following steps of:

[0010] Erecting the support frame body: firstly, installing multiple supports on multiple adjacent bearing platforms respectively; secondly, erecting the movable rail on the multiple supports; and thirdly, assembling the hoisting device on the movable rail;

[0011] Erecting the beam segment: transporting the beam segment to be installed to a predetermined position, erecting the beam segment on two adjacent pier columns through the hoisting vehicle, monitoring the arrangement length of the movable rail and the length of the erected beam segment through the monitoring device, analyzing the number of the beam segments that can be erected by the current movable rail, and continuing to repeat the hoisting operation of the beam segment;

[0012] Displacing the hoisting device: continuing to erect the support frame body towards the erection direction of the beam segment, then extending the movable rail, and then displacing the hoisting device along the erection direction of the beam segment through the moving device.

[0013] The application has the following beneficial effects:

[0014] The overhead bridge crossing construction crane can erect the beam segment on the pier column more accurately and quickly, significantly improves the speed and quality of the bridge construction, the track device between the hoisting device and the support frame body is designed, so that the hoisting device can move stably, reduces the shaking and unstable factors in the construction process, and improves the safety of the construction, the monitoring device can monitor the arrangement length of the movable rail and the length of the erected beam segment in real time, provides accurate data support for the construction team, facilitates timely adjustment of the construction scheme, and ensures the smooth progress of the construction process. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate certain illustrative embodiments of the application and together with the description serve to explain the application. In the drawings:

[0016] Figure 1 is a schematic diagram of the overhead bridge crossing construction crane Figure 1 ;

[0017] Figure 2 is a schematic diagram of the overhead bridge crossing construction crane Figure 2 ;

[0018] Figure 3 is a schematic diagram of the overhead bridge crossing construction crane Figure 3 ;

[0019] Figure 4 is a schematic diagram of the overhead bridge crossing construction crane

[0020] Fig.:

[0021] abutment (11); pier (12); beam segment (13);

[0022] support frame (20); support (21); column (22); crossbar (23);

[0023] hoisting device (30); moving frame (31); lifting groove (32); hoisting vehicle (33); anchoring device (34);

[0024] track device (40); moving rail (41); moving device (42);

[0025] monitoring device (50); first monitoring end (51); second monitoring end (52). DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described below in combination with the drawings of the present application. The described embodiments are only a part of the embodiments of the present application. All other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the present application shall fall within the scope of protection of the present application.

[0027] As Figures 1 to 4 shown, the present application provides a high bridge crossing construction crane for bridge erection, the bridge comprising an abutment 11 and a pier 12 arranged on the abutment 11, and a beam segment 13 erected on the pier 12 by the high bridge crossing construction crane;

[0028] The high bridge crossing construction crane comprises a support frame 20 arranged on the abutment 11, a hoisting device 30 provided on the support frame 20, and a track device 40 provided between the support frame 20 and the hoisting device 30, the hoisting device 30 being relatively moved with the support frame 20 through the track device 40;

[0029] The hoisting device 30 comprises a moving frame 31, a lifting groove 32 and a hoisting vehicle 33 at least partially arranged in the lifting groove 32 provided on the moving frame 31, and the hoisting vehicle 33 is slidingly connected to the lifting groove 32;

[0030] The monitoring device is provided on the hoisting device 30, the moving frame 31 has at least one first monitoring end 51, the monitoring device comprises a first monitoring belt provided on the first monitoring end 51 and a second monitoring belt integrated on the hoisting vehicle 33, and a monitoring hub.

[0031] In this embodiment, the mobile frame carries the lifting vehicle and provides the moving track. In order to ensure the stability and load-bearing capacity of the mobile frame, the mobile frame adopts a solid frame structure made of high-strength steel. The lifting vehicle is at least partially installed in the lifting groove of the mobile frame and is connected to the mobile frame through a sliding connection. The lifting vehicle adopts hydraulic or electric driving mode, as well as advanced guiding and braking system.

[0032] In this embodiment, the monitoring device is integrated on the lifting device for real-time monitoring of key parameters of the lifting operation, such as the position and speed of the lifting vehicle. By comparing these parameters with the preset safety threshold, potential safety hazards can be discovered in time and appropriate measures can be taken. The control system is responsible for receiving data from the monitoring device and controlling and adjusting the lifting device according to the data. For example, when the weight of the lifting vehicle is detected to exceed the preset value, the control system can automatically stop the lifting operation and issue an alarm signal.

[0033] In this embodiment, the lifting device is also equipped with safety protection measures, including limiters, buffers, anti-overturning devices, etc. Safety protection measures can provide additional support and protection during lifting operations, thereby avoiding accidents.

[0034] As shown in Figures 1 to 3 In this embodiment, the support frame body 20 includes a plurality of supports 21 arranged on the bearing platform 11, and the support 21 includes a column 22 arranged on the bearing platform 11 and a crossbar 23 fixedly connected to the column 22.

[0035] In this embodiment, at least two columns are fixedly connected to the bearing platform to provide stable support for the lifting device. In order to ensure the firm and reliable connection between the column and the bearing platform, high-strength bolt connection or welding method can be adopted. The crossbar is connected to the columns of the same bearing platform to form a stable frame structure. The connection between the crossbar and the column should also adopt high-strength bolt connection or welding method to ensure the stability and load-bearing capacity of the entire support frame body.

[0036] As shown in Figures 1 to 3 In this embodiment, the track device 40 includes a moving rail 41 erected on a plurality of crossbars 23 and a moving device 42 arranged below the lifting device 30 and cooperating with the moving rail 41 to move the lifting device 30 relative to the support frame body 20.

[0037] As shown in Figure 4 In this embodiment, a second monitoring end 52 is provided at the lower end of the lifting vehicle 33, and a second monitoring belt is provided on the second monitoring end 52.

[0038] In this embodiment, the first monitoring belt is arranged at the first monitoring end of the moving frame, for real-time monitoring of the arrangement length of the moving rail. In this embodiment, the first monitoring belt is provided with a magnetic induction sensor. In some embodiments, the first monitoring belt can also be provided with a laser ranging sensor and an ultrasonic ranging sensor. The first monitoring belt can accurately measure the extension length of the rail, ensuring the stability and accuracy of the lifting device during movement.

[0039] In this embodiment, the second monitoring belt is integrated on the lifting vehicle, for monitoring the length of the beam segment and the position and state of the lifting vehicle. In this embodiment, the second monitoring belt is provided with a magnetic induction sensor. In some embodiments, the second monitoring belt can also be provided with a laser ranging sensor and an ultrasonic ranging sensor. The second monitoring belt can capture the size information of the beam segment and the motion trajectory of the lifting vehicle in real time.

[0040] In this embodiment, the monitoring device includes a data processing module, which is the core part of the monitoring device, responsible for receiving data transmitted by the data acquisition module and conducting in-depth analysis and processing. This module may use high-performance microprocessors or digital signal processors (DSP) to perform complex algorithms and logical judgments to extract useful information and generate alarm signals.

[0041] In this embodiment, the monitoring device includes a communication module, which is responsible for transmitting processed data to the monitoring hub or other remote devices. It uses wired or wireless communication technologies such as Ethernet, Wi-Fi, Bluetooth, or LoRa to ensure real-time and reliable data transmission.

[0042] In this embodiment, the monitoring hub is the display and control center of the monitoring device, which receives data from the communication module and displays, stores, and analyzes it. The monitoring hub may include large-screen displays, touchscreens, printers, and other devices, as well as specially developed software applications for presenting real-time data, historical data, and alarm information.

[0043] As shown in Figure 4 In this embodiment, the lifting device 30 is used to erect the beam segment 13 on the pier column 12, and the lifting vehicle 33 is connected with the anchoring device 34 at the lower end.

[0044] In this embodiment, the anchoring device connected to the lower end of the lifting vehicle is a key component that ensures the stability and safety of the beam segment during erection. The anchoring device is made of high-strength materials and has sufficient load-bearing capacity and fatigue resistance.

[0045] The present application also provides a construction method of a crane for viaduct crossing construction, which uses the crane for viaduct crossing construction described above, and the construction method comprises the following steps:

[0046] Erecting the support frame body: first, install multiple supports 21 on adjacent multiple bearing platforms 11; second, erect the movable rail 41 on the multiple supports 21; then, assemble the hoisting device 30 on the movable rail 41;

[0047] Beam segment erection: transport the to-be-installed beam segment 13 to the predetermined position, erect the beam segment 13 on the two adjacent pier columns 12 through the hoisting vehicle 33, monitor the arrangement length of the movable rail 41 and the length of the arranged beam segment 13 through the monitoring device after installation, analyze the number of beam segments 13 that can be supported by the current movable rail 41 for erection, and continue to repeat the hoisting operation of the beam segment 13;

[0048] Hoisting device displacement: continue to erect the support frame body 20 towards the erection direction of the beam segment 13, then extend the movable rail 41, and then displace the hoisting device 30 along the erection direction of the beam segment 13 through the moving device 42.

[0049] Among them, when installing the support 21 on the bearing platform 11, first arrange the stand 22 on the bearing platform 11, and then fixedly connect the stand 22 to the cross rod 23.

[0050] Among them, when monitoring the arrangement length of the movable rail 41 and the length of the arranged beam segment 13 through the monitoring device, the arrangement length of the movable rail 41 is monitored through the first monitoring belt, and the length of the beam segment 13 is monitored through the second monitoring belt.

[0051] Among them, when erecting the beam segment 13 and repeating the hoisting operation of the beam segment 13, first transport the next required beam segment 13 to be erected to the adjacent beam segment 13, and monitor the length of the current required beam segment 13 to be erected through the second monitoring belt.

[0052] Among them, in the process of erecting the beam segment 13, the distance between the currently erected beam segment 13 and the adjacent beam segment 13 is analyzed through the second monitoring belt, so that the distance between the two adjacent beam segments 13 is accurately controlled.

[0053] The present application has many use scenarios, including but not limited to the following described scenarios:

[0054] In the construction of large bridges, such as river-crossing and sea-crossing bridges, the efficient construction capacity and powerful hoisting capacity of the bridge-erecting crane can meet the needs of such projects;

[0055] In the construction of urban viaducts, the bridge-erecting crane can accurately erect the beam segment on the pier column, while reducing the impact on urban traffic and improving construction efficiency;

[0056] In complex terrains such as mountains and rivers, traditional construction methods may be limited, while the bridge-erecting crane can efficiently complete the bridge construction task in these environments due to its flexibility and powerful hoisting capacity.

Claims

1. A bridge-erection crane for erecting a bridge, the bridge comprising a pile cap (11) and a pier column (12) arranged on the pile cap (11), and a beam segment (13) erected on the pier column (12) by the bridge-erection crane, characterized in that ； The overhead bridge crossing construction crane comprises a support frame (20) arranged on the bearing platform (11), a hoisting device (30) arranged on the support frame (20), and a track device (40) arranged between the support frame (20) and the hoisting device (30), wherein the hoisting device (30) moves relative to the support frame (20) through the track device (40); The hoisting device (30) comprises a moving frame (31), a hoisting vehicle (33) arranged in a lifting groove (32) on the moving frame (31), and the hoisting vehicle (33) is slidingly connected to the lifting groove (32); The monitoring device is arranged on the hoisting device (30), the moving frame (31) has at least one first monitoring end (51), the monitoring device comprises a first monitoring belt arranged on the first monitoring end (51) and a second monitoring belt integrated on the hoisting vehicle (33), and a monitoring hub; The support frame (20) comprises a plurality of supports (21) arranged on the bearing platform (11), the support (21) comprises a stand (22) arranged on the bearing platform (11) and a crossbar (23) fixedly connected to the stand (22); The track device (40) comprises a moving rail (41) arranged on a plurality of the crossbars (23) and a moving device (42) arranged below the hoisting device (30) and cooperating with the moving rail (41) to move the hoisting device (30) relative to the support frame (20); The second monitoring end (52) is arranged at the lower end of the hoisting vehicle (33), and the second monitoring belt is arranged on the second monitoring end (52); The hoisting device (30) is used to erect the beam segment (13) on the pier column (12), and the anchoring device (34) is connected to the lower end of the hoisting vehicle (33).

2. A construction method of a bridge girder erection crane for a high bridge construction, characterized by, The overhead bridge crossing construction crane according to claim 1, and the construction method comprises: Erecting the support frame: firstly, a plurality of supports (21) are respectively installed on a plurality of adjacent bearing platforms (11); secondly, the moving rail (41) is erected on a plurality of the supports (21); and thirdly, the hoisting device (30) is assembled on the moving rail (41); Beam segment erection: the beam segment (13) to be installed is transported to a predetermined position, the beam segment (13) is erected on two adjacent pier columns (12) by the hoisting vehicle (33), the arrangement length of the moving rail (41) and the length of the arranged beam segment (13) are monitored by the monitoring device after installation, the number of the beam segments (13) that can be erected by the current moving rail (41) is analyzed, and the hoisting operation of the beam segment (13) is continuously repeated; The lifting device is displaced: the support frame (20) continues to be erected towards the erection direction of the beam segment (13), then the movable rail (41) is extended, and the lifting device (30) is displaced along the erection direction of the beam segment (13) by the moving device (42).

3. The method according to claim 2, wherein When the support frame (21) is installed on the bearing platform (11), the column (22) is arranged on the bearing platform (11) first, and then the column (22) is fixedly connected to the cross rod (23).

4. The method according to claim 3, wherein When the arrangement length of the movable rail (41) and the length of the beam segment (13) are monitored by the monitoring device, the arrangement length of the movable rail (41) is monitored by the first monitoring belt, and the length of the beam segment (13) is monitored by the second monitoring belt.

5. The method according to claim 4, wherein When the beam segment (13) is erected and the hoisting operation of the beam segment (13) is repeated, the next required beam segment (13) to be erected is first transported to the adjacent beam segment (13), and the length of the current required beam segment (13) to be erected is monitored by the second monitoring belt.

6. The method according to claim 5, wherein During the erection of the beam segment (13), the distance between the current erected beam segment (13) and the adjacent beam segment (13) is analyzed by the second monitoring belt, so that the distance between the two adjacent beam segments (13) is accurately controlled.

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