A method for installing a reinforcement cage in the construction of a continuous beam

Abstract

The application discloses a method for installing a steel reinforcement cage in continuous beam construction, wherein: the steel reinforcement cage is installed by using a cantilever pouring and walking integrated machine; the cantilever pouring and walking integrated machine comprises a support framework system and a walking system, and the walking system is arranged at the lower part of the support framework system; the cantilever pouring and walking integrated machine walks to the front end of a completed continuous beam section through the walking system, hoists and transports the prefabricated steel reinforcement cage from the rear end of the support framework system to the front end, adjusts the angle, front and back and left and right positions of the steel reinforcement cage to be consistent with the angle, front and back and left and right positions of the next continuous beam pouring section, and then lowers the steel reinforcement cage to the design position between the assembled outer forms. The application can hoist and transport the prefabricated steel reinforcement cage to the top of the design position of the next continuous beam pouring section by using the cantilever pouring and walking integrated machine, and then lower the steel reinforcement cage, so that the problems of long construction period and difficult guarantee of engineering quality caused by scattered steel reinforcement cage assembly operation can be overcome.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of continuous beam pouring construction, in particular to a method for installing a reinforcement cage in continuous beam construction. BACKGROUND

[0002] At present, the building industry in China is developing rapidly, and prestressed concrete continuous beam has many application advantages, including large structural stiffness, small deformation, good dynamic performance, and under the same conditions, it has smaller section, lighter weight, larger stiffness, better crack resistance and durability than ordinary reinforced concrete components, can effectively control the deflection of the structure (even no deflection), save steel by 40~50%, save concrete by 20~40%, especially in large-span structures, it is more economical, therefore, the application of prestressed concrete continuous beam bridge is becoming more and more widely, and it has become one of the core bridge types in bridge engineering construction.

[0003] The cantilever pouring method is a common method for continuous beam bridge construction, but its construction process is complex, and many construction technical problems need to be solved, the existing continuous beam cantilever pouring hanging basket usually uses more manual auxiliary operation, the cantilever pouring construction period is longer, for example, the reinforcement cage construction, this link is to carry out on-site scattered splicing operation after the continuous beam formwork is assembled and spliced, the scattered splicing operation of the reinforcement cage of each continuous beam segment occupies about 2~3 days of construction period, about 20% of the segment construction time, the construction period is long, and because the scattered splicing operation of the reinforcement cage often needs to rely on the experience of the operating personnel, plus the relatively narrow on-site operation space and limited tools, often lead to poor quality of the reinforcement operation, further affecting the engineering quality of the continuous beam; in order to overcome the above-mentioned defects of the reinforcement cage, the reinforcement cage can be prefabricated on the factory floor, or on the ground position of the construction site, or on the already poured continuous beam segment, and how to safely hoist the prefabricated reinforcement cage to the continuous beam formwork becomes a problem to be solved. SUMMARY

[0004] The present application discloses a method for installing a reinforcement cage in continuous beam construction, which can hoist the prefabricated reinforcement cage to the above of the design position of the next continuous beam pouring segment by using a cantilever pouring walking integrated machine, and then lower it, which can overcome the above-mentioned problems existing in the scattered splicing operation of the reinforcement cage.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] A method for installing a reinforcement cage in continuous beam construction, wherein: the installation of the reinforcement cage adopts a cantilever pouring walking integrated machine; the cantilever pouring walking integrated machine comprises a support framework system and a walking system, the walking system is arranged at the lower part of the support framework system, and is used to realize the movement of the support framework system;

[0007] The cantilever casting machine travels to the front end of the completed continuous beam segment via the traveling system. The precast steel cage is then hoisted from the rear end of the support frame system to the front end. The angle, front-back, and left-right orientation of the steel cage are adjusted to match the angle, front-back, and left-right orientation of the next continuous beam segment. Finally, the steel cage is lowered to the designed position between the assembled outer formwork.

[0008] Furthermore, before hoisting, the prefabricated steel cage is placed on the beam with its cross-section perpendicular to the installation cross-section. When hoisted to the front of the support frame system, it is rotated 90° so that the angle of the steel cage is consistent with the installation angle.

[0009] Furthermore, the cantilever casting traveling machine also includes a rebar cage assembly system, which includes a rebar cage hoisting track, a crane and a lifting mechanism. The rebar cage hoisting track is fixed to the upper part of the support frame system. The crane can move back and forth between the front and rear ends of the support frame system along the rebar cage hoisting track. The crane is connected to a lifting mechanism for hoisting the rebar cage.

[0010] The process of hoisting the prefabricated steel cage from the rear end of the support frame system to the front end specifically includes: moving the hoisting mechanism to the rear end of the support frame system, lifting the steel cage, moving the steel cage along the steel cage hoisting track to the front end of the construction, rotating and moving the hoisting mechanism forward, backward, left and right, adjusting the angle, forward, backward and left and right orientation of the steel cage to be consistent with the angle, forward, backward and left and right orientation of the design position, lowering the steel cage, and installing it into the design position in the continuous beam formwork.

[0011] Furthermore, the lifting mechanism includes a rotating lifting device with a rotation angle of not less than 90°.

[0012] Furthermore, the lifting mechanism includes a lifting beam, a lifting component, and a rotating lifting device. At least two lifting vehicles are provided, connected by the lifting beam. The lifting component is provided under the lifting beam and can move laterally along the lifting beam. A rotating lifting device is suspended under the lifting component and is used for lifting and rotating the reinforcing cage.

[0013] Furthermore, the rotating lifting device employs an electric rotary mechanism.

[0014] Furthermore, the supporting frame system includes columns, lower traveling beams, upper load-bearing beams, and transverse connecting structures. Two columns, one lower traveling beam, and one upper load-bearing beam form a supporting truss, and the two supporting trusses are connected by the transverse connecting structures.

[0015] Wherein: the middle part of the upper load-bearing beam is connected to the upper end of the column located on the front side, and a steel cage hoisting rail is provided on the inner side; the column is a telescopic structure.

[0016] Furthermore, in the support frame system, in the support truss formed by the column, the lower traveling beam and the upper load-bearing beam, detachable frame diagonal braces and / or frame longitudinal beams are provided to connect the two columns.

[0017] and / or

[0018] A detachable frame brace is also connected between the front end of the upper load-bearing beam and the column located on the front side.

[0019] and / or

[0020] The rear end of the lower traveling beam can be connected to the extension section of the lower traveling beam, and the extension section of the lower traveling beam is connected to the column paper piece located on the rear side by a detachable skeleton diagonal brace.

[0021] Furthermore, a counter-pressure roller mechanism is provided between the bottom of the support frame system and the cast-in-place continuous beam segment. The counter-pressure roller mechanism includes a roller pressure roller, a protective frame, a connecting plate, a connecting rocker arm, and a spiral joint. The length of the roller pressure roller is matched to the bottom of the support frame system. The protective frame surrounds the roller pressure roller above and outside, and is connected to the roller pressure roller via bearings. The upper part of the connecting plate is connected to the protective frame, and the lower end is rotatably connected to the upper end of the connecting rocker arm. The lower end of the connecting rocker arm is detachably connected to the spiral joint. The spiral joint has an internal thread extending upward from its lower port for fixing the pre-embedded precision rolled steel in the pre-embedded fastener. During the travel of the traveling system and the hoisting of the reinforcing cage, the counter-pressure roller mechanism is used to keep the bottom of the support frame system from tilting forward.

[0022] Furthermore, the traveling system includes a traveling wheel assembly, which comprises a traveling drive motor, a gearbox, a drive wheel, a driven wheel, and a protective steel frame. The traveling drive motor is mounted on the protective steel frame and provides power for the rotation of the gearbox. The gearbox drives the drive wheel to rotate via a transmission component, and the drive wheel drives the driven wheel to rotate via the transmission component. The drive wheel and the driven wheel are located within the protective steel frame and connected to the protective steel frame via bearings, enabling them to travel on the traveling track mechanism. The protective steel frame is provided with protective steel plate forks, and the bottom of the support frame system is provided with traveling beam forks. The protective steel plate forks and the traveling beam forks are connected by pins.

[0023] The above-described method for installing reinforcing cages in continuous beam construction has the following advantages:

[0024] (1) By adopting the present invention, it is possible to transport and hoist the prefabricated steel cages to the designed position in the outer formwork, which saves the time of steel cage assembly and can effectively reduce the construction time of a single beam segment, speed up the project progress and improve the construction quality.

[0025] (2) Since the width of the steel cage needs to match the width of the continuous beam segment, the width is relatively large. In order to reduce the width of the support frame system, the steel cage is set to be perpendicular to the installation direction before hoisting. When it is hoisted to the front end of the support frame system for installation, it is rotated 90° by the rotating hoist and then lowered into the continuous beam formwork. This can effectively reduce the width of the support frame system and improve the safety of construction.

[0026] (3) The present invention also sets the column as a telescopic structure, so that the column height can be increased when the steel cage is hoisted from the rear end of the support frame system to the front end to ensure that the steel cage passes smoothly. When the device for hoisting the steel cage moves as a whole, the column height is reduced, the center of gravity of the device for hoisting the steel cage is lowered, and the safety of construction is improved. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of the cantilever casting machine of the present invention applied to the construction of continuous beam segments.

[0028] Figure 2 This is a schematic diagram of the main structure of another structural form of the cantilever casting machine involved in this invention, applied to the construction of continuous beam segments.

[0029] Figure 3 This is a schematic diagram of the main structure of the steel cage assembly system.

[0030] Figure 4 yes Figure 3 A schematic diagram of the left-side structure (omitting the multi-point hanger structure).

[0031] Figure 5 yes Figure 2 A schematic diagram of the left side of the multi-point hanger structure.

[0032] Figure 6 yes Figure 5 A top view of the longitudinal beams, transverse beams, and connecting lugs of the central hanger.

[0033] Figure 7 This is a schematic diagram of the counter-pressure roller mechanism.

[0034] Figure 8 yes Figure 7 A schematic diagram of the left view of the mid-section structure.

[0035] Figure 9 This is a structural diagram of the running wheel assembly.

[0036] Figure 10 yes Figure 9 A schematic diagram of the cross-sectional structure of the drive wheel section.

[0037] Figure 11 yes Figure 2Enlarged structural diagram of the central fulcrum lifting support mechanism.

[0038] Figure 12 yes Figure 11 A schematic diagram of the cross-sectional structure.

[0039] In the diagram, 1 is a continuous beam, 2 is a traveling wheel assembly, 201 is a drive motor, 202 is a gearbox, 203 is a drive wheel, 204 is a driven wheel, 205 is a retaining steel plate fork lug, 206 is a retaining steel plate, 207 is a support clamp, 3 is a lower traveling beam, 4 is a frame diagonal brace, 5 is a multi-point hanger structure, 501 is a rotating frame, 502 is a flexible suspension unit, 503 is a hanger longitudinal beam, 504 is a hanger cross beam, 505 is a connecting lifting lug, 506 is a rebar cage hook, 6 is a rotating lifting device, 7 is a lifting component, 8 is a lifting trolley, and 8 is a rebar cage lifting track. 9. Column; 10. Upper load-bearing beam; 11. Reinforcing cage; 12. Counter-pressure roller mechanism; 13. Protective frame; 1301. Roller pressure roller; 1302. Connecting plate; 1303. Connecting rocker arm; 1304. Spiral joint; 1305. Anchoring lower pin; 1306. Anchoring upper pin; 1307. Lifting load-bearing beam; 14. Traveling beam fork lug; 15. Traveling track; 16. Embedded threaded steel; 17. Support point lifting mechanism; 18. Lifting distribution beam; 1801. Lifting jack; 1802. Lifting lower pad; 1803. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] A method for installing reinforcing cages during continuous beam construction, such as... Figure 1 and Figure 2 As shown, the installation of the reinforcing cage utilizes a cantilever casting and traveling machine. This machine includes a support frame system and a traveling system. The traveling system is located below the support frame system and is used to move the support frame system. The support frame system supports the hoisting and installation of the reinforcing cage. The installation method includes the following steps: The cantilever casting and traveling machine travels to the front end of the completed continuous beam segment via the traveling system. The prefabricated reinforcing cage 12 is hoisted from the rear end of the support frame system to the front end. The angle, front-back, and left-right orientation of the reinforcing cage 12 are adjusted to match the designed angle, front-back, and left-right orientation of the next continuous beam segment. Then, the reinforcing cage 12 is lowered to the designed position between the assembled outer formwork.

[0044] The following explains the outer formwork, used for casting continuous beams. It includes the outer formwork, inner formwork, and bottom formwork. The bottom formwork is located at the bottom of the outer formwork assembly. The reinforcing cage is placed between the outer formworks, with a passage in the middle for the inner formwork. The prefabrication of the reinforcing cage 12 can be done in a factory, on the construction site, or centrally on the continuous beam surface. For ease of transportation, when constructing segment 1 of the continuous beam, the reinforcing cage 12 is prefabricated on the construction site and hoisted to the support frame system or its front end by a tower crane. When constructing segment 2 of the continuous beam and subsequent segments, it is centrally processed on the continuous beam surface. When the cantilever casting traveling machine travels to the front end of a completed continuous beam segment via the traveling system, the reinforcing cage 12 is transported to the rear end of the cantilever casting traveling machine by a flatbed truck, and then hoisted to the front end by the rear end of the support frame system.

[0045] Furthermore, since the width of the reinforcing cage 12 needs to match the width of the continuous beam segment, it is relatively large. In order to minimize the width of the support frame system, the cross section of the prefabricated reinforcing cage placed on the beam surface is perpendicular to the installation cross section before hoisting. When hoisting to the front of the support frame system, it needs to be rotated 90° so that the angle of the reinforcing cage is consistent with the installation angle.

[0046] Furthermore, the cantilever casting machine also includes a rebar cage assembly system, comprising a rebar cage hoisting track 9, a crane 8, and a lifting mechanism. The rebar cage hoisting track 9 is fixed to the upper part of the support frame system. The crane 8 can move back and forth between the front and rear ends of the support frame system along the rebar cage hoisting track 9. The crane 8 is connected to a lifting mechanism for hoisting the rebar cage 12. Because of the rebar cage hoisting track 9, the rebar cage 12 can be lifted by the lifting mechanism and then moved from the rear end to the front end of the support frame system using the crane 8, thus enabling the rebar cage to move within the support frame system. For this rebar cage assembly system, the method of hoisting the prefabricated rebar cage from the rear end of the support frame system to the front end specifically includes: moving the hoisting mechanism to the rear end of the support frame system, hoisting the rebar cage 12, moving the rebar cage 12 along the rebar cage hoisting track 9 to the construction front end, rotating and moving the hoisting mechanism forward, backward, left and right, adjusting the angle, forward, backward and left and right orientation of the rebar cage 12 to be consistent with the angle, forward, backward and left and right orientation of the design position, lowering the rebar cage, and installing it into the design position in the continuous beam formwork.

[0047] Furthermore, to enable the rotation of the reinforcing cage 12, the lifting mechanism includes at least a rotating lifting device 6 with a rotation angle of not less than 90°. The reinforcing cage 12 is rotated 90° by the rotating lifting device 6 and then lowered into the continuous beam formwork. This effectively reduces the width of the support frame system and improves construction safety.

[0048] Furthermore, this embodiment provides a lifting mechanism that is more convenient to achieve the purpose of the present invention, combined with... Figure 3 and Figure 4 As shown, the lifting mechanism includes a lifting beam 14, a lifting component 7, and a rotating lifting device 6. At least two lifting trolleys 8 are provided, connected by the lifting beam 14. The lifting component 7 is provided below the lifting beam 14, and the rotating lifting device 6 is suspended below the lifting component 7. The rotating lifting device 6 is used to lift and rotate the reinforcing cage 12. The upper end of the reinforcing cage hook 506 is connected to the longitudinal beam 503 of the hanger. In this embodiment, since the steel cage 12 is heavy, two steel cage hoisting tracks 9 can be provided for the hoisting trolley 8. One track is provided on the inner side of each upper load-bearing beam 11. Four hoisting trolleys 8 can be provided. The hoisting trolleys 8 located on the same track are connected by a hoisting trolley connecting longitudinal beam. The hoisting trolley connecting longitudinal beam is connected as a whole by a transverse lifting load-bearing beam 14. The lifting load-bearing beam 14 is connected to the hoisting component 7. The hoisting component 7 can move laterally along the lifting load-bearing beam 14. This structure can use an existing gantry crane, or a hoisting structure similar to that in a gantry crane, or a hoisting crane with a drive structure to drive the hoisting crane to move left and right. As the hoisting component 7, it can also perform the functions of lowering and lifting the steel cage 12.

[0049] Furthermore, the rotating lifting device 6 employs an electric slewing mechanism. A common electric slewing mechanism involves a motor driving a worm gear, which in turn drives a turbine, thus rotating the rotating body. Electric slewing mechanisms are existing technology and will not be described in detail here.

[0050] Preferably, the support frame system includes columns 10, lower traveling beams 3, upper load-bearing beams 11, and a transverse connecting structure. Two columns 10, one lower traveling beam 3, and one upper load-bearing beam 11 form a support truss. Specifically, the columns 10 are arranged vertically in parallel, with their upper ends connected to the upper load-bearing beam 11 and their lower ends connected to the lower traveling beam 3. A portion of the upper load-bearing beam 11 and a portion of the lower traveling beam 3, together with the columns 10, form a support truss. The two support trusses are connected by a transverse connecting structure. The support truss is square. This transverse connecting structure can connect between the columns 10, and / or between the upper load-bearing beams 11, and / or between the lower traveling beams 3. It is only necessary to fix the two support trusses into a whole. Since the front end of the support frame system experiences greater pressure on the hoisted steel cage, preferably, an upper front transverse beam is connected to the front end of the two upper load-bearing beams 11, and a lower rear transverse beam is also connected to the lower front of the two front columns 10 to better ensure the stability of the front side of the support frame system. To ensure the stability and strength of the support frame system, detachable frame braces 4 and / or frame longitudinal beams are provided between two columns 10 in the support truss formed by the columns 10, the lower traveling beam 3, and the upper load-bearing beam 11. The figure in this embodiment shows a preferred method, in which a frame longitudinal beam is connected between the middle parts of the columns 10, and the frame braces 4 are connected between the top of the column 10 and the middle of the frame longitudinal beam, as well as between the bottom of the column 10 and the middle of the frame longitudinal beam. To prevent the reinforcing cage 12 from being obstructed by the support frame system during hoisting and lowering, the middle of the upper load-bearing beam 11 is connected to the upper end of the front column 10, meaning the front end of the upper load-bearing beam 11 extends beyond the front column 10. To ensure the support strength and stability of the upper load-bearing beam 11, a detachable frame brace 4 can also be connected between the front end of the upper load-bearing beam 11 and the front column 10. To ensure the balance of the entire support frame system, an extension section of the lower traveling beam 3 can also be connected to the rear end of the lower traveling beam 3. The extension section of the lower traveling beam and the lower traveling beam 3 can be anchored together with bolts, i.e. Figure 2 The structure shown has a detachable frame brace 4 connecting the extended section of the lower traveling beam to the rear column 10. For any detachable connection in the support frame system, bolt connections can be used for easy assembly and disassembly.

[0051] Preferably, the column 10 is a telescopic structure. The prefabrication of the reinforcing cage 12 can be completed at a fixed position on the continuous beam segment. However, the entire device for hoisting the reinforcing cage 12 still has a certain distance to travel to the next pouring segment. When the device for hoisting the reinforcing cage 12 moves as a whole using the traveling system, lowering the height of the column 10 lowers the center of gravity of the cantilever casting traveling machine, thus improving construction safety. Conversely, when hoisting the reinforcing cage 12 from the rear end to the front end of the support frame system, raising the height of the column 10 ensures that the reinforcing cage 12 passes smoothly without being obstructed by the support frame system. The telescopic structure of the column 10 can be a two-sleeve structure, such as an upper column segment and a lower column segment. The lower end of the upper column segment fits around the upper end of the lower column segment and is fixed with bolts. When the height of the column 10 needs to be adjusted, the bolts are released, and the upper column segment is moved up or down. After the movement is complete, it is fixed with bolts again. Of course, other forms that facilitate telescopic movement can also be used. The telescopic structure of columnar objects is existing technology and will not be described in detail here. When the frame bracing 4 is installed between the columns 10, it is also designed to be detachable to accommodate different heights of the columns 10. The frame bracing 4 is connected to the column 10 by bolts. A suitable length of frame bracing 4 can be selected and replaced according to the height of the column 10. Alternatively, the frame bracing 4 can also be a telescopic structure. In this embodiment, the frame bracing 4 is connected between the top of the column 10 and the middle of the frame longitudinal beam, and between the bottom of the column 10 and the middle of the frame longitudinal beam. Since the column 10 uses a sleeve type, the frame longitudinal beam is connected to the upper column segment when adjusting the height of the column 10. Therefore, the length of the frame bracing 4 on the upper frame longitudinal beam does not need to be adjusted; only the frame bracing 4 below the frame longitudinal beam needs to be adjusted. For the above-mentioned support frame system, this embodiment provides a specific arrangement of the steel cage hoisting rail 9. The upper load-bearing beam 11 has a steel cage hoisting rail 9 on its inner side. In this embodiment, the upper load-bearing beam 11 is a box beam with an L-shaped cross-section. Figure 3 As shown, the two L-shaped box beams 11 of the upper load-bearing beams are arranged laterally with their bottoms facing each other, providing support for the steel cage hoisting track 9. This makes full use of the existing support frame system.

[0052] Furthermore, due to the large weight of the reinforcing cage, the front end of the cantilever traveling machine will bear a significant load during hoisting. Therefore, to ensure that the cantilever casting traveling machine does not tip forward, a counter-pressure roller mechanism is installed between the bottom of the support frame system and the already cast continuous beam segment. In this embodiment, the counter-pressure roller mechanism is installed between the lower traveling beam 3 and the already cast continuous beam segment 1. Figure 7 and Figure 8As shown, the counter-pressure roller mechanism includes a roller pressure roller 1302, a protective frame 1301, a connecting plate 1303, a connecting rocker arm 1304, and a spiral joint 1305. The length of the roller pressure roller 1302 matches the downward-pressing traveling beam 3. The protective frame 1301 surrounds the roller pressure roller 1302 above and outside, and is connected to the roller pressure roller 1302 via bearings. The upper part of the connecting plate 1303 is connected to the protective frame 1301, and the lower end is rotatably connected to the upper end of the connecting rocker arm 1304. The lower end of the connecting rocker arm 1304 is detachably connected to the spiral joint 1305. The spiral joint 1305 has an internal thread extending upward from its lower port for fixing the pre-embedded precision rolled steel in the pre-embedded fastener. By setting the roller pressure roller 1302 to press down on the downward-pressing traveling beam 3, when the hoisting device needs to move forward, the roller pressure roller 1302 can rotate, ensuring efficient forward movement of the cantilever casting traveling machine under low frictional resistance. A protective frame 1301 is provided to protect the roller pressure roller 1302 from damage by rain and dust. The protective frame 1301 may include an upper sealing plate and side fastening plates. The two sides of the upper sealing plate are respectively connected to the side fastening plates. The roller pressure roller 1302 is located in the space enclosed by the upper sealing plate and the side fastening plates, and its two ends are respectively connected to the side fastening plates through bearings. The side fastening plates provide support for the rotation of the roller pressure roller 1302 and can work with the upper sealing plate to a certain extent to block rain and dust. More preferably, the protective frame 1301 also includes a front side plate and The rear side plate, upper sealing plate, side buckle plate, front side plate, and rear side plate surround the roller pressure roller 1302 from above and sides. Space needs to be left below for the roller pressure roller 1302 to press down on the lower traveling beam 3. Specifically, the side buckle plate is preferably L-shaped in cross-section. The shortest distance between two side buckle plates is greater than the width of the structure to be fixed, and the distance between its bottom end and the upper sealing plate is greater than the height of the structure to be fixed. This prevents the roller pressure roller 1302 from slipping and ensures that the bearing can better perform its supporting function. In this embodiment, the roller pressure roller 1302 is a cast steel forged roller, and the protective frame 1301 is made of steel plate. A gap is provided between the rotating surface of the roller pressure roller 1302 and the upper sealing plate to ensure that the bearing performs its supporting function, while reducing rolling friction resistance. Simultaneously, it also ensures that the surface of the roller pressure roller 1302 in contact with the structure to be fixed maintains good lubrication coverage, reducing contact resistance. Regarding the connection method of the connecting plate 1303, this embodiment also provides a preferred method: the upper part of the connecting plate 1303 is connected to the protective frame 1301, and a through hole is provided to accommodate the roller pressure roller 1302 passing through. Combined with the structure of the protective frame 1301 described above, the upper edge of the connecting plate 1303 is connected to the bottom surface of the upper sealing plate, and the upper front and rear edges are connected to the front side plate and the rear side plate respectively, thus better securing the connecting plate 1303.In this embodiment, the upper end of the connecting plate 1303 and the connecting rocker arm 1304 are rotatably connected. The lower end of the connecting plate 1303 is provided with a pin hole, and the upper end of the connecting rocker arm 1304 is also provided with a rocker upper pin hole. Anchoring upper pins 1307 or upper bolts are inserted into the pin holes of the connecting plate 1303 and the rocker upper pin holes to connect the connecting plate 1303 and the connecting rocker arm 1304 together. With this rotatable connection, the rotatable connection can be adaptively adjusted to a certain angle during the forward movement of the hoisting device or when there is a slight forward tilt during the hoisting construction process, so as to maintain the downward verticality of the connecting rocker arm 1304. Choosing to use anchoring upper pins 1307 can better meet this requirement. When using anchoring upper pins 1307, the anchoring upper pins 1307 are connected to the connecting plate 1303 and the connecting rocker arm 1304 through bearings. This can greatly reduce the tendency to be dragged when the counter-pressure mechanism applies downward pressure. For the detachable connection between the lower end of the connecting rocker arm 1304 and the spiral joint 1305, the lower end of the connecting rocker arm 1304 is provided with a rocker arm lower pin hole, and the joint part is provided with a joint pin hole. Anchoring lower pins 1306 or lower bolts are inserted into the rocker arm lower pin hole and the joint pin hole to fix the connecting rocker arm 1304 and the joint part together. For the joint part, the specific structure adopted in this embodiment includes a horizontal steel plate and two vertical steel plates. The lower part of the horizontal steel plate is connected to the upper end of the spiral fastening part, and the upper part is connected to two parallel vertical steel plates. The gap between the vertical steel plates can match the insertion of the lower end of the connecting rocker arm 1304. The vertical steel plates are provided with joint pin holes, which correspond to the position of the rocker arm lower pin hole. This can better stabilize the connection with the connecting rocker arm 1304. The use of lower bolts here makes disassembly more convenient. Using the above-described anchoring mechanism 5 technical solution, even during the movement of the hoisting device, the traveling support mechanism 6 can be anchored to prevent it from tilting forward, and further prevent the hoisting device from tilting forward. More preferably, two sets of connecting plates 1303 are provided, and they are symmetrical about the vertical center line of the protective frame 1301. The spacing between the connecting plates 1303 is greater than the width of the traveling support mechanism 6. In this embodiment, the connecting plates 1303 are located inside the side buckle plate. Each set of connecting plates 1303 preferably includes two connecting plate 1303 units with a gap in the middle to accommodate the upper end of the connecting rocker 1304. This allows the connecting rocker 1304 to be clamped from both sides, preventing the connecting rocker 1304 from being damaged by collision with the structure to be fixed, extending the service life of the anchoring device, and also better ensuring the stability of the connection.The anchoring process is as follows: When pouring the first segment of the continuous beam, the pre-embedded nut and pre-embedded threaded steel 17 are in the first segment of the continuous beam, and the upper end of the pre-embedded threaded steel 17 extends out of the first segment of the continuous beam. When pouring the next first segment of the continuous beam, the cantilever pouring traveling machine moves to above the pre-embedded threaded steel 17, presses the roller pressure wheel 1302 on the lower traveling beam 3, disconnects the connection between the spiral joint 1305 and the connecting rocker arm 1304, tightens the spiral joint 1305 to the upper end of the threaded steel, rotates and lowers the connecting rocker arm 1304 so that the lower pin hole of the rocker arm and the pin hole of the joint are aligned, and fixes the connecting rocker arm 1304 and the spiral joint 1305 together with the anchoring lower pin shaft 1306 or the lower bolt, thus completing the overall anchoring of the cantilever pouring traveling machine. When it is necessary to adjust the anchoring position of the counter-pressure roller mechanism, disconnect the connection between the spiral joint 1305 and the connecting rocker arm 1304, unscrew the spiral joint 1305, and adjust the counter-pressure roller mechanism and / or the cantilever casting traveling machine to the appropriate position. The counter-pressure roller mechanism, used during the traveling system's movement and hoisting of the reinforcing cage, ensures that the bottom of the support frame system does not tilt forward. In this embodiment, the length of the roller pressure roller presses down on the traveling beam 3, thus preventing the entire support frame system from tilting forward.

[0053] Furthermore, the traveling system includes a traveling wheel assembly 2, which can directly employ multiple rolling wheels. To reduce the overall height of the lifting device, this embodiment also provides a preferred structure, combined with... Figure 9 and Figure 10As shown, the running wheel assembly 2 includes a running drive motor 201, a gearbox 202, a drive wheel 203, a driven wheel 204, and a protective steel frame 206. The running drive motor 201 is mounted on the protective steel frame 206, which provides support for the running drive motor 201. The running drive motor 201 provides power for the rotation of the gearbox 202. The gearbox 202 drives the drive wheel 203 to rotate through a transmission component, and the drive wheel 203 drives the driven wheel 204 to rotate through a transmission component. The transmission component can be a belt or a sprocket, depending on the actual situation. The gearbox 202 can be a gear or sprocket structure with a radius smaller than that of the drive wheel 203. The driving wheel 203 and driven wheel 204 have the same radius and are housed within the protective steel frame 206, connected to it via bearings. The protective steel frame 206 can be square, maintaining a certain gap with the traveling track mechanism 3. It provides protection for the driving wheel 203 and driven wheel 204, and supports the bearings connected to the shafts of the driving wheel 203 and driven wheel 204. The driving wheel 203 and driven wheel 204 can travel on the traveling track mechanism 3. The protective steel frame 206 is rotatably connected to the lower traveling beam 3. Each track is matched with one driving wheel 203 and one driven wheel 204, resulting in two parallel driving wheels 203 and two driven wheels 204 on each track. The number of traveling wheel assemblies 4 in each traveling support mechanism 6 can be selected as needed. The preferred structure of the traveling wheel assembly 4 ensures support for the structure above the traveling support mechanism 6, guaranteeing the stability of movement. Since the traveling support mechanism 6 may be a frame structure, it will tend to tilt outwards due to gravity when the steel cage 12 is lowered. Therefore, a support clamp 207 can be installed on the outside of the retaining steel frame 206. The upper end of the support clamp 207 is connected to the retaining steel frame 206, and the lower end extends to the outside of the track. It has an inwardly protruding locking post that locks onto the outer side of the track. For the track made of I-beams in this embodiment, the locking post is locked under the flange of the I-beam. More preferably, a retaining steel frame fork lug 205 is provided on the retaining steel frame 206, and a traveling beam fork lug 15 is provided under the lower traveling beam 3. The retaining steel frame fork lug 205 and the traveling beam fork lug 15 are connected by a pin. With this pin connection, the pin connection can be adaptively adjusted to a certain angle during the forward movement of the hoisting device or when there is a slight forward tilt during the hoisting construction, preventing the traveling wheel assembly located at the rear end of the traveling beam from falling off the track.

[0054] To ensure that the cantilever casting machine travels along a predetermined route, the traveling system also includes a traveling track 16. The traveling track 16 includes a track 1601, track connecting beams, and beam surface support pads 1602. The beam surface support pads 1602 are spaced parallel to each other and laid along the direction of movement of the construction equipment. There are two tracks 1601, which are parallel to each other and perpendicular to the beam surface support pads 1602. The track connecting beams connect the tracks 1601 at intervals, connecting the tracks 1601 into a whole. Since the surface of the continuous beam 1 may be uneven, the beam surface support pads 1602 are laid to maintain the flatness of the traveling track 16. The traveling track 16 provides the track for the traveling wheel assembly 2. In this embodiment, four sets of traveling wheel assemblies 2 are matched under each lower traveling beam 3. Each pair of sets is parallel to each other to maintain the balance of the lower traveling beam 3. The two parallel sets of traveling wheel assemblies 2 run on two tracks 1601 of the same traveling track 16. Each cantilever casting traveling machine has two lower traveling beams 3, also matched with two traveling tracks 16. In this embodiment, the track 1601 is made of double-jointed I40 I-beams welded together. The track connecting beam is made of channel steel, welded to the track 1601 at both ends. The traveling track 16 can be assembled in multiple sections. Track connectors are provided at both the front and rear ends of the traveling track 16. The traveling track 16 can be assembled together by fixing the track connectors with bolts. Preferably, a support block is installed at the front end of the traveling track 16 to prevent the traveling wheel assemblies 2 from traveling beyond the designed position.

[0055] Preferably, this embodiment also includes a fulcrum lifting support mechanism 18, which includes a lifting jack 1802. The fixed end of the lifting jack 1802 is connected to the front end of the bottom of the support frame system, which in this embodiment is the front end of the bottom of the lower traveling beam 3. Since the front end of the cantilever casting traveling machine is equipped with a heavy steel cage 12, it tends to tilt forward. The lifting jack 1802 can apply an upward force to the front end of the support frame system, mitigating the overall forward tilting tendency of the cantilever casting traveling machine. The fixed end of the lifting jack 1802 is connected to the support frame system 6. When the cantilever casting traveling machine stops moving forward, the piston of the lifting jack 1802 extends to apply an upward force. When the cantilever casting traveling machine moves, the piston of the lifting jack 1802 shortens, without affecting the movement of the traveling wheel assembly 2. More preferably, this embodiment also provides a fulcrum lifting support mechanism 18 that can stabilize the front end of the cantilever casting traveling machine, combined with Figure 11 and Figure 12As shown, it also includes a lifting distribution beam 1801 and a lifting lower pad 1803. At least two lifting jacks 1802 are provided; the upper part of the fixed end is connected to the lifting distribution beam 1801, and the lower part of the telescopic end is connected to the lifting lower pad 1803. That is, the top surfaces of two or more lifting jacks 1802 are connected through the lifting distribution beam 1801, and the bottom ends are connected through the lifting lower pad 1803. The connection to the support frame system is achieved through the bottom lifting distribution beam 1801. The upward lifting force of the jack 1802 is evenly transmitted to the traveling support mechanism 6 via the lifting distribution beam 1801. The lower lifting pad 1803 can be matched and fastened to the traveling track 16. As shown in the figure, the lower lifting pad 1803 may have downwardly extending lower pad positioning parts on both sides. The distance between the two lower pad positioning parts can be matched and fastened to the traveling track mechanism 3, thus preventing displacement and evenly transmitting the supporting force of the traveling track 16 to the lifting jack 1802. The fulcrum lifting support mechanism 18 also has the function of protecting the traveling wheel assembly 2, preventing the working load from being concentrated on the traveling wheel assembly 2.

[0056] To ensure that the reinforcing cage is not easily deformed during hoisting, this embodiment also employs a multi-point lifting structure 5 for hoisting the reinforcing cage. The rotating lifting device 6 is connected to the multi-point lifting structure 5, combined with... Figures 3-5 As shown, the multi-point hanger structure 5 includes a hanger crossbeam 504, a hanger longitudinal beam 503, connecting lugs 505, a flexible suspension unit 502, a rotating frame 501, and a rebar cage hook 506. At least two hanger crossbeams 504 are provided, connected by multiple hanger longitudinal beams 503. Connecting lugs 505 are provided on the hanger crossbeams 504, with at least four symmetrically arranged relative to the longitudinal centerline of the hanger crossbeams 504. These lugs are connected to the rotating frame 501 via the flexible suspension unit 502. The rotating frame 501 is connected to a rotating lifting device 6. The upper end of the rebar cage hook 506 is connected to the hanger longitudinal beam 503, and the lower end is used to hook the rebar cage 12. The rotating lifting device 6 rotates, causing the rotating frame 501 to rotate. The rotating frame 501 then rotates the hanger crossbeams 504 and the hanger longitudinal beams 503, thereby causing the rebar cage 12 to rotate. This embodiment shows 14 connecting lugs 505, with 7 connected to each hanger beam 504. One lug is located in the middle of the hanger beam 504, and three lugs are symmetrically arranged on each side relative to the longitudinal centerline of the hanger beam 504. The three connecting lugs 505 on the same side are each connected to one end of the corresponding side of the rotating frame 501 via steel chains or reinforcing bars. The middle connecting lug 505 is connected to the middle of the corresponding side of the rotating frame 501 via steel chains or reinforcing bars. The steel chains or reinforcing bars constitute the flexible suspension unit 502. The multi-point hanger structure 5 avoids deformation of the reinforcing cage 12 during hoisting and also solves the problem of uneven stress on the reinforcing cage 12 during hoisting.

Claims

1. A method for installing a reinforcing cage during continuous beam construction, characterized in that: The installation of the reinforcing cage adopts a cantilever casting and traveling machine; the cantilever casting and traveling machine includes a support frame system and a traveling system. The traveling system is set at the bottom of the support frame system and is used to move the support frame system. The cantilever casting and traveling machine travels to the front end of the completed continuous beam segment through the traveling system. The prefabricated steel cage is hoisted from the rear end of the support frame system to the front end. The angle, front-back and left-right orientation of the steel cage is adjusted to be consistent with the angle, front-back and left-right orientation of the next continuous beam casting segment. Then the steel cage is lowered to the designed position between the assembled outer formwork. Before hoisting, the prefabricated steel cage is placed on the beam with its cross section perpendicular to the installation cross section. When hoisting to the front of the support frame system, it is rotated 90° so that the angle of the steel cage is consistent with the installation angle. A counter-pressure roller mechanism is provided between the bottom of the support frame system and the cast continuous beam segment. The counter-pressure roller mechanism includes a roller pressure roller, a protective frame, a connecting plate, a connecting rocker arm, and a spiral joint. The length of the roller pressure roller can match the bottom of the support frame system. The protective frame surrounds the roller pressure roller above and outside and is connected to the roller pressure roller through a bearing. The upper part of the connecting plate is connected to the protective frame, and the lower end is rotatably connected to the upper end of the connecting rocker arm. The lower end of the connecting rocker arm is detachably connected to the spiral joint. The spiral joint has an internal thread from the lower port upward for fixing the pre-embedded precision rolled steel in the pre-embedded fastener. During the travel and hoisting of the steel cage, the travel system employs a counter-pressure roller mechanism to prevent the bottom of the support frame system from tilting forward.

2. The method for installing the reinforcing cage in the construction of a continuous beam according to claim 1, characterized in that: The cantilever casting and traveling machine also includes a steel cage assembly system, which includes a steel cage hoisting track, a crane and a lifting mechanism. The steel cage hoisting track is fixed to the upper part of the support frame system. The crane can move back and forth between the front and rear ends of the support frame system along the steel cage hoisting track. The crane is connected to a lifting mechanism for hoisting the steel cage. The process of hoisting the prefabricated steel cage from the rear end of the support frame system to the front end specifically includes: moving the hoisting mechanism to the rear end of the support frame system, lifting the steel cage, moving the steel cage along the steel cage hoisting track to the front end of the construction, rotating and moving the hoisting mechanism forward, backward, left and right, adjusting the angle, forward, backward and left and right orientation of the steel cage to be consistent with the angle, forward, backward and left and right orientation of the design position, lowering the steel cage, and installing it into the design position in the continuous beam formwork.

3. The method for installing the reinforcing cage in continuous beam construction according to claim 2, characterized in that: The supporting frame system includes columns, lower traveling beams, upper load-bearing beams, and transverse connecting structures. Two columns, one lower traveling beam, and one upper load-bearing beam form a supporting truss, and the two supporting trusses are connected by the transverse connecting structures. Wherein: the middle part of the upper load-bearing beam is connected to the upper end of the column located on the front side, and a steel cage hoisting rail is provided on the inner side; the column is a telescopic structure.

4. The method for installing the reinforcing cage in the construction of a continuous beam according to claim 2, characterized in that: The lifting mechanism includes a rotating lifting device with a rotation angle of not less than 90°.

5. The method for installing the reinforcing cage in the construction of a continuous beam according to claim 2 or 4, characterized in that: The lifting mechanism includes a lifting beam, a lifting component, and a rotating lifting device. At least two lifting vehicles are provided, connected by the lifting beam. The lifting component is provided under the lifting beam and can move laterally along the lifting beam. A rotating lifting device is suspended under the lifting component and is used for lifting and rotating the steel cage.

6. The method for installing the reinforcing cage in the construction of a continuous beam according to claim 4, characterized in that: The rotating lifting device uses an electric slewing mechanism.

7. The method for installing the reinforcing cage in the construction of a continuous beam according to claim 5, characterized in that: The rotating lifting device uses an electric slewing mechanism.

8. The method for installing the reinforcing cage in the construction of a continuous beam according to claim 3, characterized in that: In the support frame system, detachable frame braces and / or frame longitudinal beams are provided between the two columns in the support truss formed by the columns, the lower traveling beam and the upper load-bearing beam. and / or A detachable frame brace is also connected between the front end of the upper load-bearing beam and the column located on the front side. and / or The rear end of the lower traveling beam can be connected to the extension section of the lower traveling beam, and the extension section of the lower traveling beam is connected to the column paper piece located on the rear side by a detachable skeleton diagonal brace.

9. The method for installing the reinforcing cage in the construction of a continuous beam according to claim 1, characterized in that: The traveling system includes a traveling wheel assembly, which comprises a traveling drive motor, a gearbox, a drive wheel, a driven wheel, and a protective steel frame. The traveling drive motor is mounted on the protective steel frame and provides power for the rotation of the gearbox. The gearbox drives the drive wheel to rotate via a transmission component, and the drive wheel drives the driven wheel to rotate via the transmission component. The drive wheel and the driven wheel are located inside the protective steel frame and connected to the protective steel frame via bearings, enabling them to travel on the traveling track mechanism. The protective steel frame is provided with protective steel plate forks, and the bottom of the support frame system is provided with traveling beam forks. The protective steel plate forks and the traveling beam forks are connected by pins.

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