A hanging basket for cantilever casting of continuous beams

By designing a diamond hanging basket, including a combination of multiple systems, the problem of long construction period and weak safety of continuous beam cantilever casting is solved, an efficient and safe construction process is achieved, and the form elevation at both ends of the bridge can be effectively controlled.

CN113550237BActive Publication Date: 2025-04-22SICHUAN ROAD BRIDGE & BRIDGE ENG CO LTD
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Patent Information

Application Number
CN202110953131.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-08-19
Publication Date
2025-04-22
Estimated Expiration
2041-08-19

AI Technical Summary

Technical Problem

The existing continuous beam cantilever cast hanging basket has a long construction cycle and weak safety. Manual operation leads to waste of resources. It is difficult to effectively control the elevation of the vertical formwork at both ends of the bridge, which is prone to overturning moments.

Method used

A diamond hanging basket is designed, including a load-bearing system, suspension system, template system, bottom basket system, anchoring system, walking system and safety protection system. Through hydraulic hoisting mechanism and intelligent walking device, manual assisted operations are reduced and construction accuracy and safety are improved.

Benefits of technology

It effectively shortens the construction cycle of continuous beam cantilever casting, improves construction safety and accuracy, reduces resource waste, and can simultaneously control the elevation of the vertical formwork at both ends of the bridge to avoid overturning torque.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a hanging basket used for cantilever casting of continuous beams. The hanging basket adopts a diamond-shaped hanging basket, which has reasonable force, light deadweight, and a wide front working surface. It adopts a variety of structural forms. It is mainly composed of a load-bearing system, a suspension system, a template system, a bottom basket system, an anchoring system, a walking system, and a safety protection system. The effective system combination reduces manual auxiliary operations and improves the accuracy of the joint construction of the two ends of the continuous beam, ensuring safe construction and linear forming of the bridge deck. The present invention effectively solves the problems of long construction period, weak safety, and a large amount of resource waste caused by manual operation in the cantilever casting of continuous beams, and cooperates with the use of a walking symmetry monitoring system to control the overall displacement stroke of the hanging basket through the displacement information fed back by the system. The walking direction of the hanging basket can also be adjusted through data import to adapt to the plane line shape of the bridge.
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Description

Technical Field

[0001] The invention relates to a hanging basket used for cantilever casting of a continuous beam, and relates to the technical field of bridge construction in building engineering. Background Art

[0002] At present, after nearly half a century of rapid development, my country's prestressed concrete continuous beam bridge has become one of the core bridge types used in bridge engineering construction. Cantilever casting is a commonly used method for continuous beam bridge construction, but its construction process is complicated, and there are still many construction technical problems to be solved. The existing continuous beam cantilever casting hanging basket usually uses more manual auxiliary operations, and the cantilever casting construction cycle is longer, which seriously affects the overall construction period of the project. At the same time, due to manual operation, a lot of resources are wasted. This solution does not meet the requirements of safe and civilized construction. Furthermore, when the hanging basket of the prior art is moving, the front support of the main truss is pulled by a hand winch to slide on the track, and the rear support is the walking seat that rolls on the track; to lay sleepers and walking rails, the hanging basket moves to the designated position, adjusts it in place for anchoring, and the use of the existing hanging basket walking method is labor-intensive, time-consuming and labor-intensive.

[0003] The invention patent application with application number CN 201410401975.5 discloses a bridge suspended pouring hanging basket counter-pressure construction method, which belongs to the field of building construction technology. The method includes building a bridge foundation section, installing a hanging basket and pouring a bottom mold, making a counter-pressure mechanism, installing a counter-pressure mechanism, placing a pressure device, and adjusting the pressure loading detection steps, and finally realizing the actual working state of pouring according to the hanging basket. The main process principle is to use the control of the hydraulic oil top pressure, press down the bottom mold, pull up the hanger rod, simulate the actual force of the hanging basket, measure the deformation parameters of each part of the hanging basket, thereby verifying the reliability of the hanging basket and eliminating its inelastic deformation, so as to correct the elevation of the vertical mold. The method of the invention overcomes the shortcomings of the traditional preloading method, can accurately simulate the actual force of the hanging basket construction, and is easy to control the preloading load, with high safety, good stability, time and labor saving, and relatively low cost, which can meet the needs of various bridge suspended pouring construction. However, the application has weak applicability and can only control the elevation of the formwork on one side of the bridge. When advancing at both ends of the bridge at the same time, it cannot effectively control the elevation of the formwork on both sides, which is prone to overturning moment. At the same time, the hanging basket structure has weak stability, the connection between the hanging basket and the cantilever end is insufficient, and there is no safe working surface for construction, which is easy to cause safety problems in construction operations. Furthermore, the hanging basket is used for counter-pressure construction, and the advancement operation can only be completed manually during the construction process, which delays the construction period and has high labor costs, which is not conducive to the rapid progress of the entire construction period. Summary of the invention

[0004] The object of the present invention is to provide a hanging basket for cantilever casting of continuous beams in view of the above-mentioned problems. The hanging basket adopts a diamond-shaped hanging basket, which has reasonable force, light weight, and a wide front working surface. It adopts a variety of structural forms and is mainly composed of a load-bearing system, a suspension system, a formwork system, a bottom basket system, an anchoring system, a walking system and a safety protection system. The effective system combination reduces manual auxiliary operations and improves the accuracy of construction at both ends of the continuous beam, thereby ensuring safe construction and linear forming of the bridge deck.

[0005] The technical solution adopted by the present invention is as follows:

[0006] The present invention discloses a hanging basket used for cantilever casting of a continuous beam, comprising a rhombus-shaped hanging basket erected at both ends of the cantilever casting of the continuous beam, and is characterized in that the rhombus-shaped hanging basket comprises a load-bearing system, a walking system, an anchoring system and a suspension system, the cantilever end of the continuous beam is provided with a safety protection system, a template system and a bottom basket system, the template system is built on the cantilever end beam body of the continuous beam, the safety protection system and the bottom basket system are built around the template system to form a hanging basket support structure, and the rhombus-shaped hanging basket load-bearing system is connected to the hanging basket support structure through the suspension system.

[0007] Furthermore, the load-bearing system of the diamond-shaped hanging basket includes a load-bearing main truss composed of diamond trusses and a front upper crossbeam composed of I-beams. The diamond truss is composed of an upper chord, a lower chord, a column, a front diagonal bar, and a rear diagonal bar. The upper chord, the lower chord, the column, the front diagonal bar, and the rear diagonal bar are connected into a diamond truss piece by connecting plate pins. A rear upper crossbeam is arranged between the columns of the diamond truss to form a transverse connection.

[0008] Furthermore, the formwork system includes an outer form, an inner top form, an inner form and an end form. The outer form adopts a large steel form for shaping the pier body, and adopts a side bottom protection method to move forward synchronously with the hanging basket. The inner top form installs a steel truss on the inner sliding beam, and then lays the steel form on the truss; the inner form adopts a combined steel form and a steel crossbar, and the position of the crossbar is the same height as the crossbar of the outer form. A movable hinge is set between the inner top form and the inner form to facilitate the disassembly and movement of the inner form. The inner form and the outer form are pulled against each other by a precision-rolled threaded steel tie rod; the end form adopts a self-made block steel form to adapt to the changes in the cross-sectional size of the box girder, and adopts the side form to wrap the end form, and is fixed by the structural steel bars extending out of the end face of the box girder.

[0009] Furthermore, the suspension system includes front and rear suspensions connected to the bottom basket system, front and rear suspensions of the outer mold connected to the formwork system, and inner mold suspension. The front and rear suspensions of the suspension system are connected on the front beam and rear beam of the bottom basket. The front suspension connected to the bottom basket is anchored on the front upper beam, the outer rear suspension connected to the bottom basket is anchored on the top surface of the top plate or bottom plate of the cast continuous beam section, and the inner rear suspension connected to the bottom basket is anchored on the top surface of the inner box bottom plate of the cast continuous beam section; the front and rear hanging points connecting the outer mold and the inner mold of the formwork system are arranged at both ends of the sliding beam, the front end hanging point is anchored on the front upper beam, and the rear end hanging point is anchored on the top surface of the cast continuous beam section.

[0010] Furthermore, the bottom basket system is located at the bottom end of the diamond-shaped hanging basket to support the upper structure. The bottom basket system includes a lower cross beam, a bottom longitudinal beam, a bottom mold, and a steel platform. The cross beam includes a front lower cross beam and a rear lower cross beam. The lower cross beam is welded with a hanging point ear plate and is pinned to the sling on the suspension system. The front lower cross beam and the rear lower cross beam are combined with steel plates to form a steel box structure. A number of bottom longitudinal beam I-beams are arranged on the front lower cross beam and the rear lower cross beam. Large steel molds are laid on the bottom longitudinal beam I-beams to form a bottom mold of the bottom basket system. Angle steels are laid at intervals on the bottom longitudinal beams, and steel plates are laid above the angle steels as panels to form a steel platform for the bottom basket system.

[0011] Furthermore, a walking system is arranged on the bridge deck at both ends of the continuous beam, the front end of the walking system is connected to the load-bearing system, and the rear end is movably connected to the bridge deck through an anchoring system. The hanging basket system includes parallel tracks, walking wheels and jacks. Each set of tracks is arranged with a number of I-beams and are connected through transverse tie beams. The walking wheels are arranged at the rear end of each truss of the load-bearing system, and the upper end of the walking wheels is anchored to the main truss through a cushion beam, a distribution beam and a hanger, and the walking wheels pass through the tracks; the jack is arranged on the rear end of each front fulcrum of the walking system, and the high-quality rolled threaded steel anchored at the front end of the track is pulled to move the diamond hanging basket forward as a whole.

[0012] Furthermore, the rear anchor point of the load-bearing system is arranged on the rear node of the load-bearing main truss, and each rear node of the load-bearing system adopts a steel rod as an anchor rod to connect the anchor system and anchor it on the continuous beam bridge deck.

[0013] Furthermore, the safety protection system includes an upper beam platform, a ladder and a passage arranged on the upper beam of the load-bearing system, and a bottom basket front beam platform, a bottom basket rear beam platform, and a bottom basket side platform arranged on the bottom basket system. The upper beam platform, the bottom basket front beam platform, the bottom basket rear beam platform, and the bottom basket side platform are arranged around the construction surface using an assembled structure combination to form a safe construction working surface.

[0014] Furthermore, the walking system adopts a walking symmetry inspection and monitoring system to connect the diamond-shaped hanging baskets at both ends of the continuous beam. The walking symmetry inspection and monitoring system adopts industrial wireless communication connection between dual control cabinets to coordinate the communication of the hanging basket systems on both sides; the human-machine interface operation is used to set the stroke that the hanging basket needs to move each time, and the system controls the overall displacement stroke of the hanging basket through the feedback displacement information.

[0015] The technical effects of the present invention are as follows:

[0016] The present invention provides a hanging basket for cantilever casting of continuous beams, which effectively solves the problems of long construction period, weak safety and large waste of resources caused by manual operation of cantilever casting of continuous beams. The hanging basket includes a load-bearing system, a suspension system, a template system, a bottom basket system, an anchoring system, a walking system and a safety protection system, and is used in conjunction with a walking symmetry monitoring system, which can control the overall displacement stroke of the hanging basket through the displacement information fed back by the system. The walking direction of the hanging basket can also be adjusted through data import to adapt to the plane line shape of the bridge.

[0017] The details are as follows:

[0018] 1. The present invention adopts a hydraulic lifting mechanism and an intelligent walking device to make the hanging basket move and walk. Under the premise of meeting the load-bearing capacity, the weight of the hanging basket equipment is reduced, the installation height of the hanging basket equipment is reduced, and the stability of the hanging basket equipment is improved. The device of the present invention is light, simple to disassemble and assemble, convenient to transport, and highly adaptable. It is positioned by a jack positioning device to ensure the travel accuracy, thereby ensuring the construction accuracy; further, the jacks on both sides of the hanging basket are pushed synchronously to ensure that the forward movement distance of the hanging basket is consistent, avoiding the phenomenon that the manual guide chain cannot be synchronized, and reducing the risk of overturning during the forward movement of the hanging basket.

[0019] 2. The present invention can calculate and design the length of the telescopic beam of the riveted beam behind the main truss according to the length of the bridge. The end of the telescopic beam is anchored when installed. The telescopic rod does not need to be anchored each time the hanging basket moves, which saves a lot of time for the hanging basket to move and also provides protection for the safety of the hanging basket's movement.

[0020] 3. The present invention adopts a multi-system integrated structure to form an intelligent walking hanging basket, which speeds up the walking speed of the hanging basket in each section of bridge construction, improves the construction progress of the continuous beam, and shortens the entire construction period.

[0021] 4. The walking system of the present invention adopts the connection between the walking symmetry monitoring system and the integrated system. For each over-limit and overweight warning, multiple displacement sensors monitor the displacement change and the hydraulic valve monitors the liquid pressure value and feeds it back to the main control console for processing to ensure that the displacement does not exceed the design and the oil tops do not exceed the limit, thereby controlling the synchronous displacement of the hanging baskets at both ends to both sides and not exceeding the deviation limit, ensuring that the beam end is not overloaded; the single end of the hanging basket is simultaneously displaced perpendicular to the horizontal plane of the beam body to ensure the precise displacement of the track hanging basket position; when the hanging basket is anchored, it can play a synchronous and horizontal effective loading and anchoring role, and is controlled by the oil pump at the same time to prevent the rear anchor rod from being damaged due to the local force on the rear anchor shoulder beam; the upper crossbeam in front of the hanging basket adjusts the oil top to control the template to adjust the elevation, thereby reducing labor and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the system structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the installation structure of the suspension system of the present invention;

[0024] Figure 3 It is a schematic diagram of the installation structure of the template system of the present invention;

[0025] Figure 4 This is a front view of the hanging basket structure of the present invention;

[0026] Figure 5 It is a side view of the hanging basket structure of the present invention.

[0027] Markings in the figure: 1- load-bearing system, 101- front upper crossbeam, 102- upper chord, 103- lower chord, 104- column, 105- front diagonal rod, 106- rear diagonal rod, 107- connecting plate, 2- walking system, 201- track, 202- walking wheel, 203- jack, 3- anchoring system, 4- suspension system, 401- front suspension, 402- rear suspension, 5- safety protection system, 501- upper crossbeam platform, 502- bottom basket front crossbeam platform, 503- bottom basket rear crossbeam platform, 504- bottom basket lateral platform, 6- template system, 601- outer side form, 602- inner top form, 603- inner side form, 604- end form, 7- bottom basket system, 701- front lower crossbeam, 702- rear lower crossbeam, 703- bottom longitudinal beam. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] In this embodiment, the data used are preferred solutions, but are not used to limit the present invention;

[0031] like Figure 1-5 As shown, this embodiment provides a hanging basket used for cantilever casting of continuous beams, including diamond-shaped hanging baskets erected at both ends of the cantilever casting of the continuous beam, characterized in that the diamond-shaped hanging basket includes a load-bearing system, a walking system, an anchoring system and a suspension system, and the cantilever end of the continuous beam is provided with a safety protection system, a template system and a bottom basket system, the template system is built on the cantilever end beam of the continuous beam, the safety protection system and the bottom basket system are built around the template system to form a hanging basket support structure, and the diamond-shaped hanging basket load-bearing system is connected to the hanging basket support structure through the suspension system.

[0032] In this embodiment, preferably, the load-bearing system of the diamond-shaped hanging basket includes a load-bearing main truss composed of 4 diamond-shaped trusses and a front upper crossbeam composed of I-beams. The diamond truss is composed of an upper chord, a lower chord, a column, a front diagonal bar, and a rear diagonal bar. The upper chord, the lower chord, the column, the front diagonal bar, and the rear diagonal bar are connected into diamond truss pieces by connecting plate pins, and a 2[40 channel steel is used. A rear upper crossbeam is arranged between the columns of the diamond truss to form a transverse connection to increase the lateral stability of the hanging basket and meet the needs of walking the hanging basket. The upper crossbeam is composed of 2HN600 steel.

[0033] In this embodiment, the template system includes an outer mold, an inner top mold, an inner mold and an end mold. The outer mold adopts a large steel mold for shaping the pier body, and adopts a side bottom protection method to move forward synchronously with the hanging basket. The inner top mold installs a steel truss on the inner sliding beam, and then lays a steel mold on the truss. Preferably, an adapter block is added to the inner top mold to adapt to the change in the width of the top plate caused by the change of the web of the main beam; the inner mold adopts a combined steel mold plus a steel crossbar, and the position of the crossbar is the same height as the crossbar of the outer mold. A movable hinge is set between the inner top mold and the inner mold to facilitate the disassembly and walking of the inner mold. The inner mold and the outer mold are pulled by a precision-rolled threaded steel tie rod. Preferably, the distance between the tie rods is 100 cm horizontally and 110 cm vertically; the end mold adopts a self-made block steel mold to adapt to the change in the cross-sectional size of the box beam, and adopts the side mold to wrap the end mold, and is fixed by the structural steel bars extending from the end face of the box beam. Preferably, the end mold is accurately set out during processing of the prestressed channel position and the steel bar position, and a shear-resistant tooth block is set as required.

[0034] In this embodiment, the suspension system includes three parts: front and rear suspension of the bottom basket system, front and rear suspension of the outer mold, and inner top mold suspension; the front and rear suspension of the bottom basket system are arranged on the front and rear lower beams of the bottom basket, and 4 are arranged on each. The front suspension of the bottom basket is anchored on the front upper beam, the rear outer suspension of the bottom basket is anchored on the top plate or the top surface of the bottom plate of the cast beam section, and the rear inner suspension of the bottom basket is anchored on the top surface of the inner box bottom plate of the cast beam section. The front and rear suspension points of the outer mold and the inner top mold are set at both ends of the sliding beam, the front end is anchored on the front upper beam, and the rear end is anchored on the top surface of the cast beam section (only the outer flange suspension beam is anchored on the rear upper beam). The suspension adopts a sling, preferably, the sling is 150mm×24mm, and the sling is connected to the front lower beam suspension point through a steel pin; the rear inner suspension of the bottom basket adopts a 150mm×40mm steel belt. The front and rear suspension points of the outer mold and the inner top mold are set at both ends of the sliding beam, the front end is anchored to the front upper cross beam, and the rear end is anchored to the top surface of the poured beam section. Preferably, the suspension strap is 150mm×24mm.

[0035] In this embodiment, the bottom basket system is located at the bottom end of the diamond hanging basket to support the upper structure. The bottom basket system includes a lower cross beam, a bottom longitudinal beam, a bottom mold, and a steel platform. The cross beam includes a front lower cross beam and a rear lower cross beam. The lower cross beam is welded with a hanging point ear plate and is connected to the sling pin on the suspension system. The front lower cross beam and the rear lower cross beam are combined with steel plates to form a steel box structure. A number of bottom longitudinal beam I-beams are arranged on the front lower cross beam and the rear lower cross beam. Preferably, 14 bottom longitudinal beam I45b I-beams are arranged on the front and rear lower cross beams in this embodiment; a large steel mold is laid on the bottom longitudinal beam I-beam to form a bottom mold of the bottom basket system. Preferably, the steel platform is laid on the bottom longitudinal beam by an angle steel with a spacing of 50cmL75×6mm, and a 6mm thick steel plate is laid thereon as a panel.

[0036] In this embodiment, a walking system is arranged on the bridge deck at both ends of the continuous beam, the front end of the walking system is connected to the load-bearing system, and the rear end is connected to the bridge deck through the anchoring system. The hanging basket system includes parallel tracks, walking wheels and jacks. Each set of tracks is arranged with a number of I-beams and connected through a transverse tie beam. The walking wheels are arranged at the rear end of each truss of the load-bearing system, and the upper end of the walking wheels is anchored to the main truss by a cushion beam, a distribution beam, and a hanger, and the walking wheels pass through the track; the jack is arranged at the rear end of each front fulcrum of the walking system, and the fine-rolled threaded steel anchored at the front end of the track is pulled to make the diamond hanging basket move forward as a whole. Further, when the hanging basket is walking, a central control center is used to control four sets of hydraulic jacks to work simultaneously to ensure the synchronization of the hanging basket walking, and sensors are installed for monitoring. When the hanging basket is walking out of sync, a signal reminder is immediately issued to prevent the hanging basket from overturning due to the walking out of sync. The hanging basket walking at both ends must also be synchronized, and scale lines must be drawn on the track to ensure that the hanging basket walking synchronously at both ends is observed at any time during the walking process to ensure the load balance at both ends of the beam body.

[0037] In this embodiment, the rear anchor point of the load-bearing system is arranged on the rear node of the load-bearing main truss, and each rear node of the load-bearing system adopts steel rods as anchor rods to connect the anchoring system and anchor it on the continuous beam bridge deck; preferably, in this embodiment, each rear node adopts 4 40crφ60mm steel rods as anchor rods for anchoring each main truss.

[0038] In this embodiment, the safety protection system includes an upper beam platform, a ladder and a passage arranged on the upper beam of the load-bearing system, and a bottom basket front beam platform, a bottom basket rear beam platform, and a bottom basket side platform arranged on the bottom basket system. The upper beam platform, the bottom basket front beam platform, the bottom basket rear beam platform, and the bottom basket side platform are arranged around the construction surface using an assembled structure combination to form a safe construction working surface.

[0039] In this embodiment, the walking system uses a walking symmetry inspection and monitoring system to connect the diamond-shaped hanging baskets at both ends of the continuous beam. Since the two diamond-shaped hanging baskets on a single T-structure are far apart and are restricted by other on-site conditions, the walking symmetry inspection and monitoring system uses industrial wireless communication connections between dual control cabinets to coordinate the communication of the hanging basket systems on both sides; on this basis, the two hanging baskets can be operated, walking information can be shared, and the two hanging baskets can walk synchronously and symmetrically. Avoid unbalanced overturning torques when the hanging baskets move asymmetrically. Furthermore, the human-machine interface operation is used to set the travel distance that the hanging basket needs to move each time. The system controls the overall displacement travel of the hanging basket through the feedback displacement information; further, the walking direction of the hanging basket can also be adjusted through data import to adapt to the plane line shape of the bridge.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hanging basket used for cantilever casting of continuous beams, comprising a diamond hanging basket erected at both ends of the cantilever casting of the continuous beam, characterized in that: The diamond hanging basket comprises a load-bearing system (1), a walking system (2), an anchoring system (3) and a suspension system (4); a safety protection system (5), a template system (6) and a bottom basket system (7) are arranged at the cantilever end of the continuous beam; the template system (6) is built on the cantilever end beam of the continuous beam; the safety protection system (5) and the bottom basket system (7) are built around the template system (6) to form a hanging basket support structure; the diamond hanging basket load-bearing system (1) is connected to the hanging basket support structure via the suspension system (4); The load-bearing system (1) of the diamond hanging basket comprises a load-bearing main truss composed of a diamond truss and a front upper crossbeam (101) composed of I-beams spliced ​​together, the diamond truss is composed of an upper chord (102), a lower chord (103), a column (104), a front diagonal bar (105), and a rear diagonal bar (106), the upper chord (102), the lower chord (103), the column (104), the front diagonal bar (105), and the rear diagonal bar (106) are pin-connected to form a diamond truss piece through a connecting plate (107), and a rear upper crossbeam is arranged between the columns (104) of the diamond truss to form a transverse connection; The suspension system (4) includes front and rear suspensions connected to the bottom basket system (7), front and rear suspensions of the outer mold (601) and the inner mold (603) suspension connected to the template system (6), the front and rear suspensions of the suspension system (4) are connected and arranged on the front lower cross beam (701) and the rear lower cross beam (702) of the bottom basket, the front suspension (401) connected to the bottom basket is anchored on the front lower cross beam (701), the outer rear suspension (402) connected to the bottom basket is anchored on the top surface of the top plate or bottom plate of the cast continuous beam section, and the inner rear suspension (402) connected to the bottom basket is anchored on the top surface of the inner box bottom plate of the cast continuous beam section; the front and rear suspension points of the outer mold (601) and the inner mold (603) connected to the template system (6) are arranged at the two ends of the sliding beam, the front suspension point is anchored on the upper cross beam (101), and the rear suspension point is anchored on the top surface of the cast continuous beam section; The bottom basket system (7) is located at the bottom end of the diamond hanging basket to support the upper structure. The bottom basket system includes a lower cross beam, a bottom longitudinal beam (703), a bottom mold, and a steel bar platform. The cross beam includes a front lower cross beam (701) and a rear lower cross beam (702). A lifting point ear plate is welded on the lower cross beam and connected to the sling pin on the suspension system (4). The front lower cross beam (701) and the rear lower cross beam (702) are combined with steel plates to form a steel box structure. A plurality of bottom longitudinal beams (703) I-beams are arranged on the front lower cross beam (701) and the rear lower cross beam (702). A large steel mold is laid on the bottom longitudinal beam (703) I-beam to form a bottom mold of the bottom basket system (7). Angle steels are laid at intervals on the bottom longitudinal beam (703). Steel plates are laid on the angle steels as panels to form a steel bar platform of the bottom basket system (7). A walking system (2) is arranged on the bridge deck at both ends of the continuous beam. The front end of the walking system (2) is connected to the load-bearing system (1), and the rear end is movably connected to the bridge deck through an anchoring system (3). The walking system (2) comprises parallel tracks (201), walking wheels (202) and jacks (203). Each set of tracks (201) is arranged with a plurality of I-beams and connected through a transverse tie beam. The walking wheels (202) are arranged at the rear end of each truss of the load-bearing system (1). The upper end of the walking wheel (202) is anchored to the main truss through a cushion beam, a distribution beam and a hanger, and the walking wheel passes through the track (201). The jack (203) is arranged at the rear end of each front fulcrum of the walking system (2), and pulls the finely rolled threaded steel anchored at the front end of the track (201) to move the diamond hanging basket forward as a whole. The walking system (2) uses a walking symmetry inspection and monitoring system to connect the diamond hanging baskets at both ends of the continuous beam. The walking symmetry inspection and monitoring system uses industrial wireless communication connection between two control cabinets to coordinate the communication of the hanging basket systems on both sides. The human-machine interface operation is used to set the travel distance of the diamond hanging basket each time. The system controls the overall displacement travel of the diamond hanging basket through the feedback displacement information. The suspension system (4) comprises three parts: front and rear suspension of the bottom basket system (7), front and rear suspension of the outer mold (601), and suspension of the inner top mold (602); the front and rear suspension of the bottom basket system (7) are arranged on the front lower cross beam (701) and the rear lower cross beam (702) of the bottom basket, and four of each are arranged.

2. The hanging basket used for cantilever casting of continuous beams according to claim 1 is characterized in that: The template system (6) comprises an outer mold (601), an inner top mold (602), an inner mold (603) and an end mold (604). The outer mold (601) adopts a large steel mold for shaping the pier body, and adopts a side bottom protection method to move forward synchronously with the diamond hanging basket. The inner top mold (602) installs a steel truss on the inner sliding beam, and then lays a steel mold on the truss; the inner mold (603) adopts a combined steel mold plus a steel cross section, and the position of the steel cross section is consistent with the outer mold. The horizontal dimensions of the mold (601) are of equal height, and a movable hinge is provided between the inner mold (603) and the inner top mold (602) to facilitate the installation and removal of the inner mold (603) and the movement. The inner mold (603) and the outer mold (601) are pulled against each other by a precision-rolled threaded steel tie rod; the end mold (604) adopts a self-made block steel mold to adapt to the changes in the cross-sectional size of the box beam, and adopts the method of wrapping the end mold (604) with the side mold, and is fixed by the structural steel bars extending from the end face of the box beam.

3. The hanging basket used for cantilever casting of continuous beams according to claim 2 is characterized in that: The rear anchor point of the load-bearing system (1) is arranged on the rear node of the load-bearing main truss, and each rear node of the load-bearing system (1) uses a steel rod as an anchor rod to connect the anchor system (3) and anchor it on the continuous beam bridge deck.

4. The hanging basket used for cantilever casting of continuous beams according to claim 3 is characterized in that: The safety protection system (5) comprises an upper beam platform (501), a ladder and a passage arranged on the upper beam (101) of the load-bearing system (1), and a bottom basket front beam platform (502), a bottom basket rear beam platform (503) and a bottom basket lateral platform (504) arranged on the bottom basket system (7); the upper beam platform (501), the bottom basket front beam platform (502), the bottom basket rear beam platform (503) and the bottom basket lateral platform (504) are arranged around a construction surface in an assembled structure combination to form a safe construction working surface.

Citation Information

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