Crane for viaduct crossing construction and construction method thereof

Abstract

The invention discloses a crane for viaduct crossing construction and a construction method thereof. The crane comprises a supporting frame body arranged on a bearing platform, a lifting device arranged on the supporting frame body and a rail device arranged between the supporting frame body and the lifting device, and the lifting device moves relative to the supporting frame body through the rail device; the lifting device comprises a movable frame, a pulling and lifting groove and a crane car at least partially arranged in the pulling and lifting groove in a penetrating mode are arranged on the movable frame, and the crane car is connected with the pulling and lifting groove in a sliding mode. Wherein a monitoring device is arranged on the lifting device, the movable frame is provided with at least one first monitoring end, and the monitoring device comprises a first monitoring belt arranged at the first monitoring end, a second monitoring belt integrated on the crane vehicle and a monitoring center; the bridge construction speed and quality can be improved, shaking and unstable factors in the construction process are reduced, and the construction safety is improved; meanwhile, accurate data support can be provided, the construction scheme can be adjusted in time, and smooth proceeding of the construction process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of viaduct construction, and in particular to a crane for viaduct spanning construction and a construction method thereof. Background Art

[0002] The viaduct span construction crane is a large-scale lifting equipment specially used for bridge construction. It can move horizontally and lift vertically 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 bridges. During the bridge construction process, the viaduct span construction crane is mainly used to lift heavy objects such as beam sections, bridge deck paving materials, and construction equipment. Through precise control and adjustment, the crane can accurately place the heavy objects in the designated position, thereby ensuring the smooth progress of the bridge construction.

[0003] However, the operation process of the crane used for viaduct span construction is relatively complicated 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 proposed in Chinese Patent No. 109267491 and Chinese Patent No. 118704389 have the above problems.

[0004] Based on this, it is necessary to propose a new crane for elevated bridge span construction and a construction method for elevated bridge span construction, which can improve the speed and quality of bridge construction, reduce shaking and unstable factors during construction, and improve the safety of construction; at the same time, it can provide accurate data support to facilitate timely adjustment of construction plans and ensure the smooth progress of the construction process. Summary of the invention

[0005] The invention provides a crane for viaduct spanning construction, which is used for erecting a bridge, wherein the bridge comprises a cap and piers arranged on the cap, and a beam section erected on the piers by the crane for viaduct spanning construction;

[0006] The crane for viaduct span construction comprises a support frame arranged on a cap, a lifting device is arranged on the support frame, and a track device is arranged between the support frame and the lifting device, and the lifting device moves relative to the support frame through the track device;

[0007] The lifting device comprises a mobile frame, on which a lifting groove and a lifting vehicle at least partially inserted into the lifting groove are arranged, and the lifting vehicle is slidably connected to the lifting groove;

[0008] A monitoring device is arranged on the lifting device, the mobile 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 lifting vehicle, and a monitoring hub.

[0009] The present invention also provides a construction method of a crane for viaduct spanning construction, using the above-mentioned crane for viaduct spanning construction, the construction method comprises:

[0010] Erecting the support frame: First, install multiple brackets on multiple adjacent platforms respectively; second, erect the moving rails on the multiple brackets; then, assemble the lifting device on the moving rails;

[0011] Beam segment erection: transport the beam segment to be installed to the predetermined location, and erect the beam segment on two adjacent piers by a crane. After installation, monitor the layout length of the moving rail and the length of the beam segment by a monitoring device, analyze the number of beam segments that the current moving rail can support, and continue to repeat the beam segment hoisting operation;

[0012] Displacement of the lifting device: Continue to erect the support frame in the direction of the beam section, then extend the movable rails, and then use the moving device to displace the lifting device along the direction of the beam section.

[0013] The beneficial effects of the present invention are:

[0014] The present invention uses a crane for viaduct span construction, so that the beam sections can be erected on the piers more accurately and quickly, which significantly improves the speed and quality of bridge construction; the design of the track device between the lifting device and the supporting frame enables the lifting device to move smoothly, reduces shaking and unstable factors during the construction process, and thus improves the safety of construction; through the setting of the monitoring device, the layout length of the moving rails and the length of the erected beam sections can be monitored in real time, providing accurate data support for the construction team, facilitating timely adjustment of the construction plan, and ensuring the smooth progress of the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 Illustration of a crane used for construction of a viaduct Figure 1 ;

[0017] Figure 2 Illustration of a crane used for construction of a viaduct Figure 2 ;

[0018] Figure 3 Illustration of a crane used for construction of a viaduct Figure 3 ;

[0019] Figure 4 is a schematic diagram of the lifting device;

[0020] In the figure:

[0021] Cap (11); pier (12); beam section (13);

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

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

[0024] Track device (40); Moving rail (41); Moving device (42);

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

[0026] The technical solution of the present invention will be described below in conjunction with the accompanying drawings of the present invention, but the described embodiments are only part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 4 As shown, the present invention provides a crane for viaduct spanning construction, which is used for bridge erection. The bridge includes a cap 11 and a pier 12 arranged on the cap 11, and a beam section 13 erected on the pier 12 by the crane for viaduct spanning construction;

[0028] The crane for viaduct crossing construction comprises a support frame 20 arranged on a cap 11, a lifting device 30 is arranged on the support frame 20, and a track device 40 is arranged between the support frame 20 and the lifting device 30, and the lifting device 30 moves relative to the support frame 20 through the track device 40;

[0029] The lifting device 30 includes a moving frame 31, on which a lifting groove 32 and a lifting vehicle 33 at least partially inserted into the lifting groove 32 are provided, and the lifting vehicle 33 is slidably connected to the lifting groove 32;

[0030] A monitoring device is provided on the lifting device 30, the mobile frame 31 has at least one first monitoring end 51, and the monitoring device includes a first monitoring belt provided at the first monitoring end 51, a second monitoring belt integrated on the lifting vehicle 33, and a monitoring center.

[0031] In this embodiment, the mobile frame carries the crane and provides a moving track for it. In order to ensure the stability and load-bearing capacity of the mobile frame, the mobile frame is made of high-strength steel to form a solid frame structure. The crane 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 crane adopts a hydraulic or electric drive, as well as an advanced guide and brake system.

[0032] In this embodiment, the monitoring device is integrated on the lifting device and is used to monitor the key parameters of the lifting operation in real time, such as the position and speed of the lifting vehicle. By comparing these parameters with the preset safety thresholds, potential safety hazards can be discovered in time and corresponding measures can be taken. The control system is responsible for receiving data from the monitoring device and controlling and adjusting the lifting device based on these data. For example, when it is monitored that the weight of the lifting vehicle exceeds the preset value, the control system can automatically stop the lifting operation and send an alarm signal.

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

[0034] like Figures 1 to 3 As shown, in this embodiment, the support frame 20 includes a plurality of brackets 21 arranged on the support platform 11 , and the brackets 21 include columns 22 disposed on the support platform 11 and cross bars 23 fixedly connected to the columns 22 .

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

[0036] like Figures 1 to 3 As shown, in this embodiment, the track device 40 includes a movable rail 41 mounted on a plurality of crossbars 23 and a moving device 42 disposed below the lifting device 30 and cooperating with the movable rail 41 to enable the lifting device 30 and the support frame 20 to move relative to each other.

[0037] like Figure 4 As shown, in this embodiment, a second monitoring end 52 is provided at the lower end of the crane truck 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 mobile frame, and is used to monitor the layout length of the mobile rail in real time. 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 crane truck to monitor the length of the beam section and the position and state of the crane truck. In this embodiment, the second monitoring belt is provided with a magnetic induction sensor. In some embodiments, the second monitoring belt may 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 section and the movement trajectory of the crane truck in real time.

[0040] In this embodiment, the monitoring device includes a data processing module, which is the core part of the monitoring device and is responsible for receiving the data transmitted by the data acquisition module and performing in-depth analysis and processing. The module may use a high-performance microprocessor or digital signal processor (DSP) that can execute 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 the processed data to the monitoring center or other remote devices. It uses wired or wireless communication technology, such as Ethernet, Wi-Fi, Bluetooth or LoRa, to ensure the real-time and reliability of the data.

[0042] In this embodiment, the monitoring center 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 center may include devices such as a large-screen display, a touch screen, a printer, and specially developed software applications for presenting real-time data, historical data and alarm information.

[0043] like Figure 4 As shown, in this embodiment, the lifting device 30 is used to erect the beam section 13 on the pier 12, and the lower end of the lifting vehicle 33 is connected to an anchoring device 34.

[0044] In this embodiment, the anchoring device connected to the lower end of the crane is a key component to ensure the stability and safety of the beam section during the erection process. The anchoring device is made of high-strength material and has sufficient load-bearing capacity and fatigue resistance.

[0045] The present invention also provides a construction method of a crane for viaduct spanning construction, using the above-mentioned crane for viaduct spanning construction, the construction method comprises:

[0046] Erection of the support frame: First, multiple brackets 21 are respectively installed on multiple adjacent platforms 11; secondly, the moving rails 41 are erected on the multiple brackets 21; then, the lifting device 30 is assembled on the moving rails 41;

[0047] Beam segment erection: transport the beam segment 13 to be installed to the predetermined position, and erect the beam segment 13 on two adjacent piers 12 by means of the crane 33. After installation, the arrangement length of the movable rail 41 and the length of the arranged beam segment 13 are monitored by means of a monitoring device, and the number of beam segments 13 that can be erected by the current movable rail 41 is analyzed, and the lifting operation of the beam segment 13 is continued and repeated;

[0048] Lifting device displacement: Continue to erect the support frame 20 in the erection direction of the beam section 13 , then extend the movable rail 41 , and then use the movable device 42 to displace the lifting device 30 along the erection direction of the beam section 13 .

[0049] When the bracket 21 is installed on the support platform 11 , the columns 22 are first arranged on the support platform 11 , and then the columns 22 are fixedly connected to the crossbar 23 .

[0050] When the arrangement length of the movable rail 41 and the arrangement length of the beam section 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 section 13 is monitored by the second monitoring belt.

[0051] When the beam section 13 is erected and the hoisting operation of the beam section 13 is repeated, the next beam section 13 to be erected is first transported to the adjacent beam section 13, and the length of the currently erected beam section 13 is monitored through the second monitoring belt.

[0052] In the process of erecting the beam section 13 , the distance between the currently erected beam section 13 and the adjacent beam section 13 is analyzed through the second monitoring belt, so that the distance between the two adjacent beam sections 13 can be accurately controlled.

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

[0054] In the construction of large bridges, such as river-crossing and sea-crossing bridges, the efficient construction capability and strong lifting capacity of cranes used in viaduct span construction can meet the needs of such projects;

[0055] In the construction of urban viaducts, cranes used in viaduct span construction can accurately erect beam sections onto piers, 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, but cranes used for viaduct span construction can efficiently complete bridge construction tasks in these environments with their flexibility and powerful lifting capacity.

Claims

1. A crane for construction of a viaduct spanning bridge, used for erecting a bridge, the bridge comprising a cap (11) and a pier (12) arranged on the cap (11), and a beam section (13) erected on the pier (12) by the crane for construction of a viaduct spanning bridge, characterized in that ； The viaduct spanning construction crane comprises a support frame (20) arranged on the cap (11), a lifting device (30) being arranged on the support frame (20), and a track device (40) being arranged between the support frame (20) and the lifting device (30), wherein the lifting device (30) moves relative to the support frame (20) via the track device (40); The lifting device (30) comprises a mobile frame (31), on which a lifting groove (32) and a lifting vehicle (33) at least partially inserted into the lifting groove (32) are arranged, and the lifting vehicle (33) is slidably connected to the lifting groove (32); A monitoring device is provided on the lifting device (30), the mobile 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 lifting vehicle (33), and a monitoring center.

2. The crane for viaduct spanning construction according to claim 1, characterized in that: The support frame (20) comprises a plurality of brackets (21) arranged on the support platform (11), and the brackets (21) comprise upright posts (22) arranged on the support platform (11) and cross bars (23) fixedly connected to the upright posts (22).

3. The crane for viaduct spanning construction according to claim 2, characterized in that: The track device (40) comprises a movable rail (41) mounted on a plurality of the cross bars (23) and a moving device (42) arranged below the lifting device (30) and cooperating with the movable rail (41) to enable the lifting device (30) and the support frame (20) to move relative to each other.

4. The crane for viaduct spanning construction according to claim 3, characterized in that: A second monitoring end (52) is arranged at the lower end of the lifting vehicle (33), and a second monitoring belt is arranged on the second monitoring end (52).

5. The crane for viaduct spanning construction according to claim 4, characterized in that: The lifting device (30) is used to erect the beam section (13) on the pier (12), and the lower end of the lifting vehicle (33) is connected to an anchoring device (34).

6. A crane construction method for viaduct spanning construction, characterized in that: Using the crane for viaduct span construction as claimed in claim 5, the construction method includes: Erecting the support frame: first, respectively installing the plurality of brackets (21) on the plurality of adjacent support platforms (11); second, erecting the movable rail (41) on the plurality of brackets (21); and then assembling the lifting device (30) on the movable rail (41); Beam segment erection: transport the beam segment (13) to be installed to a predetermined position, and erect the beam segment (13) on two adjacent piers (12) by means of the crane (33). After installation, the arrangement length of the movable rail (41) and the length of the arranged beam segment (13) are monitored by means of a monitoring device, and the number of beam segments (13) that can be supported by the current movable rail (41) is analyzed, and the lifting operation of the beam segment (13) is continued and repeated; Lifting device displacement: Continue to erect the support frame (20) in the direction of erection of the beam section (13), then extend the movable rail (41), and then use the movable device (42) to displace the lifting device (30) along the erection direction of the beam section (13).

7. The crane construction method for viaduct spanning construction according to claim 6 is characterized in that: When the bracket (21) is installed on the support platform (11), the upright column (22) is first arranged on the support platform (11), and then the upright column (22) is fixedly connected to the cross bar (23).

8. The crane construction method for viaduct spanning construction according to claim 7 is characterized in that: When the arrangement length of the movable rail (41) and the length of the arrangement beam section (13) are monitored by a monitoring device, the arrangement length of the movable rail (41) is monitored by the first monitoring belt, and the length of the beam section (13) is monitored by the second monitoring belt.

9. The crane construction method for viaduct spanning construction according to claim 8, characterized in that: When the beam section (13) is erected and the lifting operation of the beam section (13) is repeated, the next beam section (13) to be erected is first transported to the adjacent beam section (13), and the length of the currently erected beam section (13) is monitored through the second monitoring belt.

10. The crane construction method for viaduct spanning construction according to claim 9, characterized in that: During the erection of the beam section (13), the distance between the currently erected beam section (13) and the adjacent beam section (13) is analyzed through the second monitoring belt, so that the distance between the two adjacent beam sections (13) can be accurately controlled.

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