Tensioning auxiliary device of cantilever cast-in-place cover beam

Abstract

The utility model discloses a cantilever cast-in-place cover beam tensioning auxiliary device which comprises a cantilever beam used for being arranged above a bridge to be operated, and a hanging basket mechanism used for being hung on the outer side of the bridge to conduct tensioning operation and a balance weight mechanism used for providing balance weight for the hanging basket mechanism are fixedly installed at the two ends of the cantilever beam respectively. A supporting mechanism is arranged between the hanging basket mechanism and the counterweight mechanism; the supporting mechanism is supported on the upper end face of the bridge and comprises a moving part fixed to the cantilever beam and used for sliding in the length direction of the bridge and a supporting part fixed to the moving part and used for supporting and locking the moving part. According to the device, the moving part capable of sliding on the bridge is arranged to drive the hanging basket mechanism to synchronously move, the hanging basket mechanism can conveniently conduct tensioning operation on the capping beams at different positions, the working efficiency is high, and the construction period can be greatly shortened; and the movable piece is locked through the supporting piece to achieve stable supporting on the bridge, the hanging basket mechanism is subjected to weight balancing through the balance weight mechanism to guarantee bearing of the hanging basket mechanism, safety and reliability are achieved, and stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of capping beam tension construction, and particularly to a tension auxiliary device for a cantilever cast-in-place capping beam. Background Technique

[0002] With the vigorous development of municipal infrastructure construction, bridge construction has obtained great development, and the prestress technology has also been widely applied in the process of bridge construction. This technology is not only applied to the upper structure of the bridge, but also widely applied in the cantilever capping beam.

[0003] Generally, prestressed tendons are arranged inside the cantilever capping beam. After the capping beam concrete is poured, the prestressed tendon threading and tensioning need to be carried out. The relative height difference between the capping beam and the ground is large, and both ends of the capping beam are in a suspended state. In the current construction field, high-altitude structures with prestress design are also very common, and the prestress tensioning operations of the capping beam mostly focus on the two ends of the capping beam. For the traditional high-altitude prestressed capping beam tensioning, usually, a tensioning operation platform is erected by using a scaffold or a bracket, and then the tensioning equipment is placed in a suspension cage. The suspension cage is hoisted to the high-altitude tensioning operation platform by using a hoisting machine, and a temporary hanging bracket is erected on the tensioning operation platform by using steel pipes. The tensioning equipment is hoisted by the hanging bracket for tensioning construction. However, the erection and removal of the tensioning operation platform are not only time-consuming and laborious, but also inconvenient to move, with low position adjustment efficiency, and the tensioning operation takes a long time, resulting in the long-term occupation of large-scale hoisting equipment for high-altitude tensioning, high cost and low construction efficiency; at the same time, the stability of the temporary hanging bracket is poor, the protection for high-altitude operations is insufficient, and the risk of high-altitude falling during construction is relatively large, there are great safety hazards, and the safety of operators and the construction quality cannot be guaranteed. Content of the Utility Model

[0004] The utility model provides a tension auxiliary device for a cantilever cast-in-place capping beam to solve the technical problems of inconvenient movement and low safety of the tensioning device for the cantilever cast-in-place capping beam in the prior art.

[0005] According to one aspect of the utility model, a tension auxiliary device for a cantilever cast-in-place capping beam is provided, which includes a cantilever beam arranged above the bridge to be operated. Suspension basket mechanisms for suspending outside the bridge for tensioning operations are respectively and fixedly installed at both ends of the cantilever beam, and a counterweight mechanism for providing counterweights for the suspension basket mechanisms is arranged between the suspension basket mechanisms and the counterweight mechanisms. A support mechanism is arranged between the suspension basket mechanisms and the counterweight mechanisms; the support mechanism supports on the upper end surface of the bridge and includes a moving member fixed on the cantilever beam for sliding along the length direction of the bridge and a support member fixed on the moving member for supporting and locking the moving member.

[0006] Further, the moving member includes a moving platform disposed below the cantilever beam. A connecting column for connecting the cantilever beam is fixed to the upper end of the moving platform, and rollers for sliding on the upper end surface of the bridge are fixed to the lower end of the moving platform.

[0007] A plurality of rollers are provided on the moving platform.

[0008] Further, the support member is disposed below the moving platform and includes a fixed rod fixed to the lower end of the moving platform and an adjusting rod movably mounted on the fixed rod along the axial direction of the fixed rod.

[0009] Further, the hanging basket mechanism includes an operating platform suspended outside the bridge for tensioning operations, protective members fixed to both sides of the operating platform along the length direction of the bridge, and vertical brackets fixed to both sides of the operating platform perpendicular to the length direction of the bridge. One end of the vertical bracket far from the operating platform is fixedly connected to the cantilever beam for providing protection along the width direction of the bridge.

[0010] The protective member includes a first protective member installed on the side of the operating platform close to the bridge and a second protective member installed on the side of the operating platform far from the bridge for providing protection along the length direction of the bridge.

[0011] Further, the vertical bracket includes two connecting rods for connecting the cantilever beam and the operating platform and a reinforcing frame disposed between the two connecting rods. The reinforcing frame is fixedly connected to the connecting rods for strengthening the connection strength between the two connecting rods and protecting the operating platform.

[0012] Further, a footrest is also installed at the bottom of the vertical bracket, and the footrest is fixed to the operating platform.

[0013] Further, the first protective member includes columns fixed to the operating platform and a first guard plate and a second guard plate installed between adjacent two columns. Both ends of the first guard plate are respectively fixedly connected to the two columns, and the second guard plate is movably inserted into the column along the height direction.

[0014] Fasteners are installed on the columns, and the second guard plate is provided with limit grooves along the height direction for the fasteners to pass through for connection and fastening.

[0015] Further, the second protective member includes fixed columns fixed to the operating platform, movable columns movably installed on the fixed columns along the length direction of the bridge, and a telescopic frame disposed between the fixed columns and the movable columns. Both ends of the telescopic frame are respectively connected to the fixed column and the movable column together to form a continuous fence.

[0016] The movable column is fixedly connected to the vertical bracket.

[0017] Further, the counterweight mechanism includes counterweight blocks fixedly installed on the cantilever beam, and the counterweight blocks are disposed above the bridge.

[0018] Further, at least one of the cantilever beam, the support mechanism, the hanging basket mechanism and the counterweight mechanism is provided with a lifting lug.

[0019] The utility model has the following beneficial effects:

[0020] The tensioning auxiliary device for the cast-in-place capping beam of the cantilever of the utility model installs a hanging basket mechanism and a counterweight mechanism at both ends of the cantilever beam respectively, and installs a support mechanism on the cantilever beam between the hanging basket mechanism and the counterweight mechanism. The device is integrally lifted above the bridge to be constructed by controlling a hoisting machine, so that the hanging basket mechanism is suspended outside the bridge, and the support mechanism is stably placed on the upper end surface of the bridge as a fulcrum of the whole device for support, and then the tensioning operation can be carried out on the capping beam. Compared with the prior art, there is no need to erect a scaffold or a support, which saves time and effort, is convenient for rapid turnover in a construction operation environment with difficult traffic, and does not need to occupy a large hoisting equipment for a long time, with low cost and high working efficiency. By installing the hanging basket mechanism at one end of the cantilever beam and suspending it outside the side end of the bridge, construction personnel and equipment can be carried to carry out the tensioning operation; by setting a counterweight mechanism at the corresponding end of the cantilever beam to counterweight the hanging basket mechanism, the load-bearing of the hanging basket mechanism can be guaranteed, and the falling caused by excessive load-bearing of the hanging basket mechanism can be avoided, ensuring the safety during the tensioning operation on the hanging basket mechanism, with high stability. The support mechanism drives the hanging basket mechanism to move synchronously along the side of the bridge by setting a moving part that can slide along the length direction of the bridge on the bridge, so that the hanging basket mechanism can quickly move to the construction range of the tensioning operation, with convenient movement, fast position adjustment speed and high flexibility, which is convenient for carrying out the tensioning operation on the capping beams at different positions through the hanging basket mechanism, can greatly improve the working efficiency and speed up the construction period; and by installing a support part at the lower end of the moving part and making it contact with the upper end surface of the bridge to support and lock the moving part, the device can be positioned to prevent the device from displacing after moving to the tensioning operation position, ensuring the stability of the device. The device has a reasonable structure, is convenient for installation and disassembly, can be repeatedly turned over and used, and has high versatility.

[0021] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the tensioning auxiliary device for the cast-in-place capping beam of the cantilever of the preferred embodiment of the utility model;

[0024] Figure 2 is a schematic structural view of the first protective member of the preferred embodiment of the present utility model;

[0025] Figure 3 is a schematic structural view of the second protective member of the preferred embodiment of the present utility model.

[0026] Legend:

[0027] 100, cantilever beam; 200, hanging basket mechanism; 201, operation platform; 202, vertical support; 2021, connecting rod; 2022, reinforcing frame; 2023, toe board; 203, first protective member; 2031, column; 2032, first guard plate; 2033, second guard plate; 2034, fastener; 2035, limiting groove; 204, second protective member; 2041, fixed column; 2042, movable column; 2043, telescopic frame; 300, counterweight mechanism; 400, support mechanism; 401, moving member; 4011, connecting column; 4012, moving platform; 4013, roller; 402, support member; 4021, fixed rod; 4022, adjusting rod. Detailed Description of the Preferred Embodiment

[0028] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways defined and covered by the following.

[0029] As Figure 1As shown in the figure, the tensioning auxiliary device for the cantilever cast-in-place capping beam of this embodiment includes a cantilever beam 100 arranged above the bridge to be constructed. The two ends of the cantilever beam 100 are respectively fixedly installed with a hanging basket mechanism 200 and a counterweight mechanism 300. By installing the hanging basket mechanism 200 at one end of the cantilever beam 100 and suspending it outside the side end of the bridge, construction workers and equipment can be carried to carry out the tensioning operation. And by setting the counterweight mechanism 300 at the corresponding end of the cantilever beam 100 to counterweight the hanging basket mechanism 200, the load-bearing capacity of the hanging basket mechanism 200 can be ensured, avoiding the falling of the hanging basket mechanism 200 due to excessive load-bearing, and ensuring the safety and high stability during the tensioning operation on the hanging basket mechanism 200. A support mechanism 400 is arranged between the hanging basket mechanism 200 and the counterweight mechanism 300. The support mechanism 400 supports on the upper end surface of the bridge to support and position the whole device. Preferably, a retaining edge is arranged along the length direction of the bridge on the side of the bridge. The cantilever beam 100 is erected above the retaining edge on the side of the bridge perpendicular to the bridge. The support mechanism 400 supports on the bridge surface inside the retaining edge, so that the retaining edge can limit the side end of the support mechanism 400 to prevent the support mechanism 400 from falling off the bridge. In this embodiment, two cantilever beams 100 are arranged in parallel. The support mechanism 400 and the hanging basket mechanism 200 are installed between the two cantilever beams 100 along the direction perpendicular to the cantilever beam 100 to enhance the structural stability. During use, control the hoisting machinery to lift the cantilever beam 100 above the retaining edge on the side of the bridge, place the support mechanism 400 and the counterweight mechanism 300 on the bridge inside the retaining edge, suspend the hanging basket mechanism 200 outside the retaining edge, and then stably place the support mechanism 400 on the upper end surface of the bridge to use it as the fulcrum of the whole device for support. After the device is erected, workers can reach the hanging basket mechanism 200 through the hoisting machinery to carry out the tensioning operation on the capping beam. Compared with the prior art, there is no need to erect a scaffold or support, which saves time and effort, is convenient for rapid turnover in the construction operation environment with difficult traffic, and does not need to occupy large hoisting equipment for a long time, with low cost and high work efficiency.

[0030] The support mechanism 400 includes a moving member 401 fixed to the cantilever beam 100 and a support member 402 fixed to the moving member 401. The moving member 401 can slide along the length direction of the bridge on the upper end surface of the bridge to drive the hanging basket mechanism 200 to move synchronously on the side of the bridge, so that the hanging basket mechanism 200 can be quickly moved to the construction range of the tensioning operation. It is convenient to move, has a fast position adjustment speed and high flexibility, which is convenient for carrying out the tensioning operation on the capping beams at different positions through the hanging basket mechanism 200, can greatly improve the work efficiency and speed up the construction period; after moving to the construction position required for the tensioning operation, control the support member 402 to extend towards the upper end surface of the bridge to contact the upper end surface of the bridge, so that the support member 402 supports the moving member 401 on the bridge deck to prevent the moving member 401 from sliding, realizing the locking of the moving member 401, positioning the device, preventing the device from displacing after moving to the tensioning operation position, and ensuring the stability of the device, which is safe and reliable.

[0031] As Figure 1 shown, the moving member 401 is arranged below the cantilever beam 100 and includes a connecting column 4011 fixed to the lower end of the cantilever beam 100, a moving platform 4012 fixed to the lower end of the connecting column 4011, and rollers 4013 fixed to the lower end of the moving platform 4012. The moving platform 4012 is arranged between the two cantilever beams 100 along the length direction of the bridge and is fixedly connected to the cantilever beam 100 through the connecting column 4011 to enhance the stability of the support on the bridge. A number of rollers 4013 are arranged at intervals at the bottom of the moving platform 4012 and are used to contact the upper end surface of the bridge to slide along the length direction of the bridge. Optionally, a locking member is provided on the roller 4013, which can lock the roller 4013 after moving the device to the construction position to realize the positioning of the device. Arranging the connecting column 4011 between the cantilever beam 100 and the moving platform 4012 can leave a certain clearance distance to ensure that the cantilever beam 100 can be supported by the support mechanism 400 above the retaining edge, and at the same time ensure that the rollers 4013 of the support mechanism 400 can contact the upper end surface of the bridge for sliding. Preferably, two connecting columns 4011 are arranged along the length direction of the cantilever beam 100. Optionally, the connecting column 4011 can be a structure that is telescopic in the height direction.

[0032] As Figure 1As shown in the figure, the support member 402 is disposed below the mobile platform 4012 and includes a fixed rod 4021 fixed to the lower end of the mobile platform 4012 and an adjusting rod 4022 movably mounted on the fixed rod 4021 along the axial direction of the fixed rod 4021. Preferably, a plurality of support members 402 are provided; preferably, the support members 402 are disposed at the corners of the bottom end of the mobile platform 4012. Specifically, the adjusting rod 4022 is disposed below the fixed rod 4021 and movably penetrates through the interior of the fixed rod 4021. A hydraulic cylinder is provided between the fixed rod 4021 and the adjusting rod 4022. The output end of the hydraulic cylinder is fixedly connected to the adjusting rod 4022, and the end away from the output end is fixedly connected to the fixed rod 4021. Moreover, the hydraulic cylinder is electrically connected to the motor. By controlling the motor, the adjusting rod 4022 can be controlled to extend or retract in the direction towards the upper end surface of the bridge. Preferably, the motor is mounted on the mobile platform 4012. Optionally, the adjusting rod 4022 and the fixed rod 4021 can also be threadedly connected to achieve telescoping. When in the retracted state, the height of the support member 402 is not greater than the height of the roller 4013 to ensure that the roller 4013 can contact the upper end surface of the bridge and smoothly move along the length direction of the bridge; when in the extended state, the height of the support member 402 is greater than the height of the roller 4013, so that the support member 402 supports the roller 4013 above the bridge surface to lock the roller 4013 and prevent the roller 4013 from sliding on the bridge surface to position the device. That is, when the device is moved to the construction range of the tensioning operation through the roller 4013, controlling the adjusting rod 4022 to extend towards the bridge surface and support on the bridge surface can enable the support mechanism 400 to stably support on the bridge surface, thereby realizing the positioning of the device. Optionally, a support foot is welded and fixed to the bottom end of the adjusting rod 4022. The support foot is a circular or triangular plate, which is used to increase the contact area with the bridge surface to improve the stability of the support.

[0033] As Figure 1As shown in the figure, the hanging basket mechanism 200 includes an operation platform 201 arranged along the length direction of the bridge, protective members fixed on both sides of the operation platform 201 along the length direction of the bridge, and vertical brackets 202 fixed on both sides of the operation platform 201 perpendicular to the length direction of the bridge. One end of the vertical bracket 202 far from the operation platform 201 is fixedly connected to the cantilever beam 100. The operation platform 201 is arranged between the two cantilever beams 100. Thus, the operation platform 201 is connected to the end of the cantilever beam 100 far from the bridge through the vertical bracket 202 to realize the suspension of the operation platform 201, so that the operation platform 201 can carry construction personnel and equipment to carry out tensioning operations on the capping beam, and at the same time provide protection for the personnel and equipment in the operation platform 201 along the width direction of the bridge, improving the safety of high-altitude operations. The protective members include a first protective member 203 installed on the side of the operation platform 201 close to the bridge and a second protective member 204 installed on the side of the operation platform 201 far from the bridge, which are used to provide protection for the personnel and equipment in the operation platform 201 along the length direction of the bridge, prevent them from falling from the operation platform 201, effectively reduce potential safety hazards, and enhance safety.

[0034] As Figure 1 shown in the figure, the vertical bracket 202 includes a connecting rod 2021 for connecting the cantilever beam 100 and the operation platform 201 and a reinforcing frame 2022 fixed on the connecting rod 2021. Two connecting rods 2021 are arranged on both sides of the operation platform 201 along the length direction of the cantilever beam 100 respectively. The reinforcing frame 2022 is arranged between the two connecting rods 2021 and is fixedly connected to the two connecting rods 2021 on both sides respectively, which is used to enhance the connection strength between the two connecting rods 2021, ensure the structural strength, and the reinforcing frame 2022 is arranged at the end of the vertical bracket 202 close to the operation platform 201 to protect the side of the operation platform 201. Preferably, the connecting rod 2021 is an H-shaped steel. Preferably, one end of the reinforcing frame 2022 far from the cantilever beam 100 is fixedly connected to the operation platform 201. The reinforcing frame 2022 includes multiple reinforcing rods arranged in a cross and / or parallel manner, which increases the overall strength and is convenient for the staff to operate and move flexibly. Preferably, the reinforcing rods are angle steels.

[0035] As Figure 1 shown in the figure, a toe board 2023 is further installed at the bottom of the vertical bracket 202. The toe board 2023 is fixed on the operation platform 201 and is used to enhance the protection of the operation platform 201. The toe board 2023 and the protective members form a four-sided enclosed structure on the operation platform 201, which can provide all-round protection for the operation platform 201 and greatly improve the safety of the device during high-altitude operations.

[0036] As Figure 1 and Figure 2As shown in the figure, the first protective member 203 is disposed on one side of the operation platform 201 away from the bridge in the length direction, and includes columns 2031 fixed to the operation platform 201 along the length direction of the bridge, a first guard plate 2032 and a second guard plate 2033 disposed between two adjacent columns 2031. Both ends of the first guard plate 2032 are fixedly connected to the two columns 2031 respectively, and the second guard plate 2033 is movably inserted into the two columns 2031 in the height direction. Specifically, the first guard plate 2032 is disposed at the bottom of the column 2031, and its side end is fixedly integrated with the column 2031 by welding to form a fixed protection for the operation platform 201. Installation grooves for accommodating the second guard plate 2033 are correspondingly formed on the opposite sides of two adjacent columns 2031, so that the second guard plate 2033 can expand and contract in the installation grooves along the height direction of the column 2031 to form a movable protection for the operation platform 201. In this embodiment, the first guard plate 2032 and the second guard plate 2033 are disposed in parallel in the installation grooves. The first guard plate 2032 is fixedly connected to the column 2031, and the second guard plate 2033 is movably engaged with the column 2031. Optionally, the second guard plate 2033 can also be movably inserted into the interior of the first guard plate 2032 in the height direction. Optionally, the first guard plate 2032 can be fixedly installed outside the column 2031. Preferably, two columns 2031 are disposed on the operation platform 201 along the length direction of the bridge, and the two columns 2031 are respectively located at both ends of the operation platform 201. Optionally, multiple columns 2031 can also be disposed at intervals on the operation platform 201. Optionally, the column 2031 can also be fixedly connected to the vertical bracket 202 through its side end.

[0037] On both sides of the second guard plate 2033, limiting grooves 2035 are formed along the height direction. Limiting holes corresponding to the limiting grooves 2035 are formed on the upright post 2031, and a fastener 2034 is installed on the upright post 2031 and used to cooperate with the limiting grooves 2035 and the limiting holes to fasten the second protection member 204. Preferably, the limiting holes and the limiting grooves 2035 are both provided with adapted threads, and the fastener 2034 is a bolt. During use, the second guard plate 2033 is adjusted to a suitable height according to the actual protection requirements, and then the bolt is sequentially inserted into the threaded hole and the limiting groove 2035 and screwed, so as to realize the fastening of the second guard plate 2033. Preferably, the limiting holes are arranged at one end of the upright post 2031 away from the operation platform 201, so as to increase the height adjustment range of the second guard plate 2033 and have a larger application range. Thus, the first protection member 203 adopts a vertically telescopic structure, which can not only adjust the height of the second guard plate 2033 according to actual needs to increase the protection of the operation platform 201, with high protection flexibility; but also avoid occupying too much operation space of the operation platform 201, which is beneficial to construction operations and is also convenient for storage and subsequent disassembly, installation and transportation. Preferably, weight-reducing holes are formed on the first guard plate 2032 and / or the second guard plate 2033, reducing material waste and facilitating handling, placement and transportation.

[0038] As Figure 1 and Figure 3 shown, the second protection member 204 is arranged on one side of the operation platform 201 along the length direction close to the bridge, and includes a fixed post 2041 fixed on the operation platform 201, movable posts 2042 arranged on both sides of the fixed post 2041, and a telescopic frame 2043 arranged between the fixed post 2041 and the movable posts 2042. Both ends of the telescopic frame 2043 are fixedly connected to the fixed post 2041 and the movable post 2042 respectively. The telescopic frame 2043 includes a number of protection rods arranged in a crosswise manner and hinged together, so that the telescopic frame 2043 can be telescoped along the length direction of the operation platform 201 through the movable cooperation between the protection rods. Preferably, the fixed post 2041 is arranged in the middle of the operation platform 201. By pulling the movable posts 2042 on both sides towards the vertical support 202, a continuous fence structure can be formed to protect one side of the operation platform 201, and the operation is convenient. The movable post 2042 is fixedly connected to the vertical support 202 to enhance the connection stability of the second protection frame and improve safety. Preferably, the fixed post 2041 can also be arranged at one end of the operation platform 201.

[0039] As Figure 1As shown in the figure, the counterweight mechanism 300 and the hanging basket mechanism 200 are correspondingly arranged on both sides of the support mechanism 400 on the cantilever beam 100, and the counterweight mechanism 300 is arranged inside the bridge to provide counterweight for the hanging basket mechanism 200 suspended outside the bridge, preventing the hanging basket mechanism 200 from falling. The counterweight mechanism 300 includes a counterweight block fixedly installed on the cantilever beam 100, and the distance between the bottom of the counterweight block and the lower end of the cantilever beam 100 is not greater than the height of the support mechanism 400, so as to prevent the support mechanism 400 from tilting and causing the device to tip over, ensuring the stability of the support mechanism 400 when supporting on the bridge deck. Optionally, the counterweight block can also be detachably and fixedly connected to the cantilever beam 100, and the counterweight block is provided with different specifications, and different specifications of counterweight blocks can be selected according to the different loads of the hanging basket mechanism 200.

[0040] Preferably, at least one of the cantilever beam 100, the support mechanism 400, the hanging basket mechanism 200 and the counterweight mechanism 300 is provided with a lifting lug as the lifting point for the movement of the device, and is used to cooperate with the lifting machinery to lift the whole device onto the bridge to be operated. Preferably, the lifting lug is a round steel and is welded and fixed to the top of the cantilever beam 100.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tensioning auxiliary device for a cantilever cast-in-place cap beam, characterized in that: The invention comprises a cantilever beam (100) for being arranged above a bridge to be operated, wherein a hanging basket mechanism (200) for hanging on the outside of the bridge for tensioning operation and a counterweight mechanism (300) for providing a counterweight for the hanging basket mechanism (200) are respectively fixedly installed at both ends of the cantilever beam (100), and a supporting mechanism (400) is arranged between the hanging basket mechanism (200) and the counterweight mechanism (300); The support mechanism (400) is supported on the upper end surface of the bridge, and comprises a moving member (401) fixed on the cantilever beam (100) for sliding along the length direction of the bridge, and a support member (402) fixed on the moving member (401) for supporting and locking the moving member (401).

2. The tensioning auxiliary device for cantilever cast-in-place cap beam according to claim 1 is characterized in that: The moving member (401) comprises a moving platform (4012) arranged below the cantilever beam (100), a connecting column (4011) for connecting to the cantilever beam (100) is fixed at the upper end of the moving platform (4012), and a roller (4013) for sliding on the upper end surface of the bridge is fixed at the lower end of the moving platform (4012); A plurality of rollers (4013) are arranged on the mobile platform (4012).

3. The tensioning auxiliary device for cantilever cast-in-place cap beam according to claim 2 is characterized in that: The support member (402) is arranged below the mobile platform (4012), and comprises a fixing rod (4021) fixed to the lower end of the mobile platform (4012) and an adjusting rod (4022) movably mounted on the fixing rod (4021) along the axial direction of the fixing rod (4021).

4. The tensioning auxiliary device for cantilever cast-in-place cap beam according to claim 1, characterized in that: The hanging basket mechanism (200) comprises an operating platform (201) suspended on the outside of the bridge for performing tensioning operations, protective members fixed to both sides of the operating platform (201) along the length direction of the bridge, and vertical brackets (202) fixed to both sides of the operating platform (201) perpendicular to the length direction of the bridge, wherein one end of the vertical bracket (202) away from the operating platform (201) is fixedly connected to the cantilever beam (100) for providing protection in the width direction of the bridge; The protective member comprises a first protective member (203) installed on a side of the operating platform (201) close to the bridge and a second protective member (204) installed on a side of the operating platform (201) away from the bridge, for providing protection in the length direction of the bridge.

5. The tensioning auxiliary device for cantilever cast-in-place cap beam according to claim 4, characterized in that: The vertical support (202) comprises two connecting rods (2021) for connecting the cantilever beam (100) and the operating platform (201), and a reinforcing frame (2022) arranged between the two connecting rods (2021); the reinforcing frame (2022) is fixedly connected to the connecting rod (2021) and is used to strengthen the connection strength between the two connecting rods (2021) and protect the operating platform (201).

6. The tensioning auxiliary device for cantilever cast-in-situ cap beam according to claim 5, characterized in that: A footboard (2023) is also installed at the bottom of the vertical bracket (202), and the footboard (2023) is fixed on the operating platform (201).

7. The tensioning auxiliary device for cantilever cast-in-situ cap beam according to claim 4, characterized in that: The first protective member (203) comprises a column (2031) fixed on the operating platform (201) and a first protective plate (2032) and a second protective plate (2033) installed between two adjacent columns (2031), the two ends of the first protective plate (2032) are respectively fixedly connected to the two columns (2031), the second protective plate (2033) is movably inserted into the columns (2031) along the height direction, a fastener (2034) is installed on the column (2031), and the second protective plate (2033) is provided with a limiting groove (2035) along the height direction for the fastener (2034) to be inserted for connection and fastening.

8. The tensioning auxiliary device for cantilever cast-in-situ cap beam according to claim 4, characterized in that: The second protection member (204) comprises a fixed column (2041) fixed on the operating platform (201), a movable column (2042) movably installed on the fixed column (2041) along the length direction of the bridge, and a telescopic frame (2043) arranged between the fixed column (2041) and the movable column (2042), wherein two ends of the telescopic frame (2043) are respectively connected to the fixed column (2041) and the movable column (2042) to form a continuous fence; The movable column (2042) is fixedly connected to the vertical support (202).

9. The tensioning auxiliary device for cantilever cast-in-place cap beam according to claim 1, characterized in that: The counterweight mechanism (300) comprises a counterweight block fixedly mounted on the cantilever beam (100), and the counterweight block is arranged above the bridge.

10. The tensioning auxiliary device for cantilever cast-in-situ cap beam according to claim 1, characterized in that: At least one of the cantilever beam (100), the support mechanism (400), the hanging basket mechanism (200) and the counterweight mechanism (300) is provided with a lifting lug.

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