A walking bridge construction hanging basket device and operation method thereof

Abstract

The present invention provides a walking type bridge construction hanging basket device and an operation method thereof, which can guide the movement of a hanging support frame, and the walking system can move along a cast bridge, stably move along the extension direction of the bridge, and effectively control the moving distance; the hanging support frame is provided to support and guide a hanging basket body, and at the same time, the installation of an anti-overturning reverse buckle wheel device further enhances the stability of the entire system; it effectively prevents the hanging basket from overturning due to uneven force or external factors during the construction process, and saves materials while ensuring construction safety and progress; the formwork system is assembled by large steel formworks and combined steel formworks, which ensures the accuracy and consistency of concrete shaping; it helps to form a high-quality cast bridge and improves the overall strength and durability of the bridge; at the same time, the prefabricated steel bars embedded in the cast bridge are supported and fixed to the hanging basket body, thereby further enhancing the stability and reliability of the formwork system.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a walking bridge construction hanging basket device and an operating method thereof. Background Art

[0002] The front support basket, also known as the cable hanging basket, uses the inclined cable of the beam section to be poured as the front support of the basket to provide support force, anchors the rear end of the basket to the poured beam section, and is used for cantilever cast-in-place prestressed concrete cable-stayed bridges. It is a construction equipment that bears the deadweight of the beam body and the construction load and can move forward section by section. It includes the basket body, tensioning system, traction system, anchoring system, walking system and thrust system. Since the cable force needs to be continuously adjusted during the construction project to bear the wet weight of the poured concrete and the construction load, the cable will generate a horizontal component force on the basket. Therefore, it is necessary to set a thrust mechanism between the basket and the bottom of the bridge to resist the horizontal component force and prevent the basket from moving backward under the action of the cable force. The traditional thrust mechanism includes two parts: the main beam thrust structure and the basket thrust structure. The two parts are interlocked and connected to each other to transfer the horizontal component force of the inclined cable to the poured beam section, thereby preventing the basket from moving backward. At present, the thrust stop structure of the main beam is usually welded with steel plates at the bottom of the cast beam section. This form mainly relies on welds to provide shear force, but the shear resistance of welds is relatively weak. Since the thrust stop mechanism prevents the front support basket from retreating and mainly relies on the shear resistance of the main beam thrust stop structure, the shear resistance of the main beam thrust stop mechanism can only be improved by increasing the number and quality of welds, which will cause the construction to be cumbersome and time-consuming, and the shear resistance of the thrust stop mechanism cannot be effectively guaranteed.

[0003] For this purpose, the prior art CN116043724A discloses a front fulcrum hanging basket and a hanging basket walking method, which includes a hanging basket body, an anchoring system, a walking system and a thrust system; the walking system includes a guiding mechanism, a traction mechanism, a walking mechanism and a driving mechanism; the guiding mechanism includes two guide beams and a guide beam anchor slidably connected above the cast beam section, one end of the traction mechanism is connected to the front end of the hanging basket body, and the other end is slidably connected to the guide beam; the driving mechanism is arranged on the guide beam and is located between the guide beam anchor and the traction mechanism, and the thrust system includes a setting A thrust base on the hanging basket body and a thrust structure arranged at the bottom of the cast beam section and abutting against the thrust base, the thrust structure includes an embedded support member embedded in the cast beam section, a thrust block sleeved outside the embedded support member, and a thrust anchor fixing the thrust block to the cast beam section. However, the above technical solution still has uneven stress distribution when the equipment is operated, resulting in excessive stress and damage to some components. At the same time, if the thrust block and the embedded support member are not tightly matched or there is a gap, the stability and safety of the system are affected. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned prior art, an object of the present invention is to provide a walking bridge construction hanging basket device and an operating method thereof.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A walking type bridge construction hanging basket device, characterized in that it comprises: a walking system, the walking system is installed on the cast bridge, and is used to guide the movement of the suspension support frame, the walking system can move along the cast bridge, and then drive the suspension support frame to move along the extension direction of the cast bridge and control the movement distance of the suspension support frame; A suspension support frame is arranged on the walking system and is used to support and guide the hanging basket body. The suspension support frame evenly distributes the stress to both sides of the walking system. An anti-overturning reverse wheel device is also installed between the suspension support frame and the walking system. The anti-overturning reverse wheel device is arranged at an end away from the hanging basket body. The anti-overturning reverse wheel device is used to pull the center of gravity of the bottom of the suspension support frame backward; The hanging basket body is used to form a construction operation platform and is connected to the template system provided by the steel; The formwork system is used to shape the concrete to form a cast bridge (including outer and inner formworks, the outer and inner formworks are assembled by large steel formworks, and the inner formworks are assembled by combined steel formworks) and is fixed by prefabricated steel bars embedded in the cast bridge and supported by the hanging basket body.

[0006] The suspension support frame is provided with a plurality of support members for pulling and tensioning the hanging basket body; the suspension support frame is inclined along one side of the moving direction of the walking system and forms an angle with the cast bridge.

[0007] As a preferred solution of the present application, the suspension support frames are mirrored along the central axis of the cast bridge in pairs and horizontally opposed to each other, and any of the suspension support frames includes: a mounting portion, the mounting portion extends toward the moving direction of the walking system, wherein corresponding connecting rods are provided on both sides of one end of the mounting portion, and the connecting rods extend toward the hanging basket body until the end points of the two connecting rods coincide; a tension rod is provided at the point where the end points of the connecting rod coincide, the tension rod and the mounting portion are horizontally arranged in the same plane, and two diagonal braces are provided at one end of the tension rod away from the connecting rod, the diagonal braces extend to the end points on both sides of the other end of the mounting portion, and a lifting trolley is also provided on the tension rod.

[0008] As a preferred solution of the present application, the mounting portion is four mounting rods arranged in a rectangular structure, and support members are arranged in sequence on the inner side of the mounting rods, and the support members divide the mounting portion into a number of triangular areas; in addition, the support members are relatively arranged along both sides of the mounting portion and are sequentially connected end to end to the mounting portions, and the support members located on the side walls respectively abut against the connecting rods and the diagonal braces to divide the suspension support frame into a number of triangular areas.

[0009] As a preferred solution of the present application, the walking system includes: A traveling mechanism, comprising a sleeper arranged on the cast bridge, a moving track arranged on the sleeper, and a traveling roller arranged on the moving track; A driving mechanism, arranged at the bottom of the mounting rod, capable of driving the movable track to move; capable of cooperating with the rear anchor system to fix the track, thereby driving the suspension system to move along the movable track; A rear anchor system is provided with a fixing part on the installation portion, and the fixing part is threadedly connected with a prefabricated steel bar embedded in the cast bridge.

[0010] As a preferred solution of the present application, the anti-overturning reverse wheel device includes: a mounting frame, the two sides of the mounting frame are covered on both sides of the movable track, and the rollers provided at the two side ends of the mounting frame are against the top of both sides of the movable track, and the mounting frame is provided with a counterweight block.

[0011] As a preferred solution of the present application, a load-bearing cylinder is further provided on the mounting frame, which passes through the movable track and abuts against the end face of the cast bridge.

[0012] As a preferred solution of the present application, the hanging basket body comprises: a rear door joint truss beam arranged in the hanging support frame and a front door joint truss beam arranged on the hanging support frame at one end away from the cast bridge, the rear door joint truss beam and the front door joint truss beam being arranged horizontally; Bottom formwork platform: The bottom formwork platform is used to bear the weight of the concrete of the beam section and is a vertical formwork. The steel bars are tied and rolled to form a construction platform, including: a bottom formwork crossbeam arranged horizontally in the same direction as the front door connecting truss beam, one of the bottom formwork crossbeams is connected to the front door connecting truss beam through a bottom formwork steel sling, and the other bottom formwork crossbeam passes through the cast bridge and is connected to the rear door connecting truss beam through a bottom formwork rear sling; a bottom formwork is laid on the bottom formwork crossbeam.

[0013] As a preferred solution of the present application, a side form hanger is further provided on the hanging basket body, and the side form hanger is threadedly connected to the prefabricated steel bars embedded in the cast bridge, and a safety fence is also provided on the side form hanger.

[0014] Also included is an operation method of a walking bridge construction hanging basket device, S1. Install the sleepers and adjust the height of the walking system according to the designed transverse slope of the bridge deck to keep the walking systems on both sides level; connect the suspension support frame to the walking system and install the anti-overturning buckle wheel device; install the hanging basket body on the suspension support frame, and build the formwork system, complete the installation and pour, and form the first section of the concrete bridge; S2, remove all bolts to separate the bottom formwork platform and the side formwork hanger from the precast steel bars on the cast bridge, release the rear anchor system, start the load-bearing cylinder, and separate the movable track from the sleeper and the suspension system; S3, start the driving mechanism to drive the moving track to start moving, and install the sleepers on the first section of the concrete bridge; S4, tighten the rear anchor system to make the track close to the sleeper, and loosen the load-bearing cylinder to make the movable track close to the suspension system, and the suspension system moves along the movable track to a relative position and is fixed; S5, fix the low formwork platform and the side formwork hanger in sequence, complete the fixation, and then pour; S6, repeat the above steps S2-S5 until the bridge construction is completed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present application is installed on the cast bridge through the walking system, and guides the movement of the suspension support frame. The walking system can move along the cast bridge, which not only improves the construction efficiency, but also ensures that the suspension support frame can move accurately and stably along the extension direction of the bridge, and effectively controls the moving distance; the suspension support frame is set to support and guide the hanging basket body, and at the same time, the installation of the anti-overturning reverse buckle wheel device further enhances the stability of the entire system; this device is especially arranged at one end away from the hanging basket body, which effectively prevents the hanging basket from overturning due to uneven force or external factors during the construction process, saving materials while ensuring construction safety and progress; the template system is composed of large steel templates and combined steel templates, which ensures the accuracy and consistency of concrete shaping. This design helps to form a high-quality cast bridge and improves the overall strength and durability of the bridge. At the same time, the stability and reliability of the template system are further enhanced by prefabricated steel bars embedded in the cast bridge and supported and fixed to the hanging basket body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a schematic diagram of the structure of the existing comparative documents; Figure 2 It is a schematic diagram of the main structure of the present invention; Figure 3 It is a schematic diagram of the main structure of the suspension support frame in the present invention; Figure 4 is an example of cross-sectional parameters of the suspension support frame of the present invention; Figure 5 This is a schematic diagram of the coordination between the suspension support frame and the walking system when the present invention is used; Figure 6 It is a plan view showing the walking system of the present invention; Figure 7 It is a schematic diagram of the actual operation of the present invention; Figure 8 It is a structural schematic diagram of the bottom mold platform of the present invention.

[0017] In the figure: 1. Concrete bridge; 11. Prefabricated steel bars; 2. Travel system; 21. Travel mechanism; 211. Sleeper; 212. Moving track; 213. Travel roller; 22. Driving mechanism; 23. Rear anchor system; 231. Fixing piece; 24. Mounting frame; 241. Counterweight; 25. Load-bearing oil cylinder; 3. Suspension support frame; 31. Mounting part; 311. Mounting rod; 32. Connecting rod; 33. Tensioning rod; 34, diagonal support rod; 4, anti-overturning reverse wheel device; 5, hanging basket body; 51, rear door connecting truss beam; 52, front door connecting truss beam; 53, bottom form platform; 531, bottom form cross beam; 532, bottom form steel sling; 54, bottom form distribution beam; 6, formwork system; 61, outer form; 62, inner form; 621, sliding beam; 7, supporting member; 8, lifting trolley; 9, safety fence; 10, side form hanger. DETAILED DESCRIPTION

[0018] Since the basket body used in the prior art such as a walking bridge construction basket device and its operation method disclosed in 202410942977.9 is generally supported by a diamond structure, which is supported on the cantilever part of the bridge by a diamond frame. The diamond frame serves as the main load-bearing structure, and transmits the deadweight of the basket and the construction load to the cast part of the bridge. However, the structure has stress concentration when subjected to force, which increases the risk of structural damage. The tensile traction structure is prone to deformation after being subjected to force, which increases the difficulty of controlling the deformation of the structure. Therefore, the present application provides a walking bridge construction basket device, including: a walking system 2, wherein the walking system 2 is installed on the cast bridge 1, and is used to guide the movement of the suspension support frame 3. The walking system 2 can move along the cast bridge 1, thereby driving the suspension support frame 3 to move along the extension direction of the cast bridge 1 and controlling the movement distance of the suspension support frame 3; The suspension support frame 3 is arranged on the walking system 2, and is used for supporting and guiding the hanging basket body 5. The suspension support frame 3 evenly disperses the stress to both sides of the walking system 2. An anti-rollover reverse wheel device 4 is also installed between the suspension support frame 3 and the walking system 2, and the anti-rollover reverse wheel device 4 is arranged at an end away from the hanging basket body 5. The anti-rollover reverse wheel device 4 is used for pulling the bottom center of gravity of the suspension support frame 3 to move backward.

[0019] The hanging basket body 5 is used to form a construction operation platform and is connected to a template system 6; The formwork system 6 is used to shape the concrete to form a cast bridge, and includes an outer formwork 61 and an inner formwork 62. The outer formwork is assembled by large steel formworks, and the inner formwork 62 is assembled by combined steel formworks. The combined steel formwork is connected to the inner formwork 62 sliding beam 621. The inner formwork 62 sliding beam 621 is connected to the hanging basket body 5 through a steel connection, and moves synchronously with the suspension support frame 3 and the hanging basket body 5 on the suspension support frame 3, so as to be reused. The outer formwork 61 is mainly supported and fixed to the hanging basket body 5 by the prefabricated steel bars 11 embedded in the cast bridge 1.

[0020] Its main implementation principles are: The present application is connected with the prefabricated steel bars 11 provided on the cast bridge 1, and its installation process is simple and fast, with few parts used. The detachable rear anchor system 23 can facilitate the connection or separation of the hanging basket body 5 and the bridge box beam, further improving the construction efficiency. In addition, the present application lowers the center of gravity of the overall device to increase the stability of the device and reduce the risk of shaking and tilting caused by sharpness, vibration and other factors. The suspension support frame 3 used in the present application reduces the intermediate truss to improve the working efficiency by 10%-15%; the driving system in the present application is specifically designed as a motor-driven reducer; it is safer and faster, greatly shortening the walking time of the hanging basket, specifically 5-8 times the hydraulic walking speed, and more effectively improving the construction efficiency of the hanging basket; A hydraulic cylinder and a motor drive are used at the front end of the basket body to make the track move forward, which further improves the automation configuration of the basket and improves the operating efficiency without manual operation. In addition, the template system provided in the present application has a self-moving hanging basket inner template 62 designed to allow a larger operating space during the steel bar installation construction, thereby shortening the steel bar installation operation time by 1-2 days.

[0021] The suspension support frame 3 is provided with a plurality of support members 7 for pulling and tensioning the hanging basket body 5; the suspension support frame 3 is inclined along one side of the moving direction of the walking system 2 and forms an angle with the cast bridge 1, and in actual operation, the angle is 60°±2°.

[0022] The suspension support frames 3 are mirrored along the central axis of the cast bridge 1 in pairs and are horizontally opposite to each other, that is, at least two suspension support frames 3 are provided, which are specifically located at the front and rear sides of one end of the cast bridge 1 and are relatively provided with suspension support frames 3, and the hanging basket body 5 is horizontally erected between the suspension support frames 3. However, in actual construction operations, in order to speed up the construction speed, the present invention shows one of the exemplary usage methods, which is provided with relative suspension support frames 3 at the left and right ends of the cast bridge 1, that is, four groups of suspension support frames 3 are provided, and the suspension support frames 3 at the left and right ends are mirrored along the central axis of the cast bridge 1, and any of the suspension support frames 3 includes: a mounting portion 31, the The mounting portion 31 extends in the moving direction of the walking system 2, wherein corresponding connecting rods 32 are provided on both sides of one end of the mounting portion 31, and the connecting rods 32 extend toward the hanging basket body 5 until the end points of the two connecting rods 32 coincide with each other; a tension rod 33 is provided at the point where the end points of the connecting rod 32 coincide with each other, and the tension rod 33 and the mounting portion 31 are horizontally arranged in the same plane (it is best that the tension rod 33 is located at the center axis of the mounting portion 31 in the horizontal plane), and the tension rod 33 is provided with two diagonal bracing rods 34 at one end away from the connecting rod 32, and the diagonal bracing rods 34 extend to the end points on both sides of the other end of the mounting portion 31, respectively, and a lifting trolley 8 is also provided on the tension rod 33. In addition, the present application is provided with a lifting trolley 8 between the railings. This design can reduce the excessive reliance of the hanging basket on the tower crane during the construction process; thereby improving the construction progress of the hanging basket and increasing the overall construction efficiency of the suspended beam by more than 10%, and saving the equipment cost of renting a tower crane.

[0023] The suspension support frame 3 of the present application can be used in actual operation, and the applicant will provide actual data as examples to demonstrate its main technical performance and parameters: Maximum deflection-span ratio of working hoist ≤1 / 400 Impact coefficient in working state: 1.1

[0024] Steel structure strength safety factor n Basic load n≥1.48 Front upper crossbeam, running beam, bottom formwork platform crossbeam and longitudinal beam stiffness: 1 / 400 of the support calculation span Bottom formwork and outer formwork stiffness: 1 / 400 of the support calculation span Internal mold stiffness: 1 / 400 of the support calculation span Anti-overturning coefficient in working state: >2.0 Anti-rollover coefficient in running state: >2.0 Main technical parameters Working state overturning stability coefficient: 1.5 Rollover stability coefficient in running state: 1.5 Maximum elastic deformation of the front node of the main frame: 15mm (1) Self-weight load ( PG ) Weight of hanging basket: PG 1 =1060 kN (2) The weight of the front end of the hanging basket (including the hanging weight + the weight of the hanging basket itself) Design maximum lifting weight: P Hanging = 1800 kN (3) Wind load PHW 1 ) Maximum calculated wind pressure in working state: P 1 = 250 Pa (Based on level 6 wind).

[0025] Wind load of structure in working state: PHW I = CP 1 A C: wind force coefficient, main beam C Main beam = 1.7 (single-piece plane truss), outriggers C Outrigger = 1.2 (round steel truss shelf); P: for calculating wind pressure; A: Windward area.

[0026] Check and calculate the windward area and windbreak coefficient of the main beam Structural windward surface filling rate

[0027] The main beam area ratio is 0.3, The spacing ratio of the second truss is , calculate the wind reduction factor according to Table 17 of the Crane Design Code: The spacing ratio of the third truss is , calculate the wind reduction factor according to Table 17 of the Crane Design Code: The spacing ratio of the fourth truss is , calculate the wind reduction factor according to Table 17 of the Crane Design Code: Wind load of main beam in working state: PHW 11 = CPA = 1.7 ´ 0.25´10.61 = 4.5 KN PHW 12 = 0.32PHW 11 = 0.32 ´ 4.5 = 1.44 KN PHW 13 = 0.76 PHW 12 = 0.76´1.44 =1.09 KN PHW 14 = 0.32 PHW 13 = 0.32´1.09 = 0.35 KN Total wind load of main beam in working state:

[0028] (4) Special wind loads ( PHW P ) Maximum calculated wind pressure in non-working state: P 1 = 800 Pa (Based on level 10 wind).

[0029] Wind load of structure in working state: PHW P = CP 1 A C: wind force coefficient, main beam C Main beam = 1.7 (single-piece plane truss), outriggers C Legs = 1.2 (circular steel truss); P: for calculating wind pressure; A: Windward area.

[0030] Therefore, the stability condition is satisfied.

[0031] Check and calculate the windward area and windbreak coefficient of the main beam Working condition 1: Under normal working condition, the basket hoists 180t of lifting weight: 1.05 PG +1.1 P Lifting weight Working condition 2: Under normal working wind conditions, the basket hoists 180t of lifting weight: 1.05 PG +1.1 P Lifting weight+ PHW The mounting portion 31 is composed of four mounting rods 311 arranged in a rectangular structure, and support members 7 are arranged in sequence on the inner side of the mounting rods 311, and the support members 7 divide the mounting portion 31 into a number of triangular areas; in addition, the support members 7 are arranged relatively along both sides of the mounting portion 31, and are connected to the mounting portion 31 in sequence end to end, and the support members 7 located on the side walls respectively abut against the connecting rods 32 and the diagonal bracing rods 34 to divide the suspension support frame 3 into a number of triangular areas. The support member 7 used in the present application is designed not to tip over during installation, and does not require diagonal cable wind ropes or diagonal bracing rods 34; to enhance the safety of anti-overturning, the track is completely anchored by the web of the beam body with fine-rolled steel; during assembly, the main trusses of the hanging baskets at both ends are connected and fixed by pins, and finally the front and rear door connections are used to connect the four main trusses of the hanging basket into a whole, which saves materials and greatly improves the stability of the hanging basket; wherein the support member 7 is preferably made of Q355B or Q235B steel, and it is mainly welded in the suspension support frame 3.

[0032] The walking system 2 comprises: The walking mechanism 21 comprises a sleeper 211 arranged on the cast bridge 1, a moving track 212 arranged on the sleeper 211, and a walking roller 213 arranged on the moving track 212; The driving mechanism 22 is arranged at the bottom of the mounting rod 311, and can drive the movable track 212 to move; it can be used to cooperate with the rear anchor system 23 to fix the track, thereby driving the suspension system to move along the movable track 212; The rear anchor system 23 is provided with a fixing member 231 on the mounting portion 31 , and the fixing member 231 is threadedly connected to the prefabricated steel bars 11 embedded in the cast bridge 1 .

[0033] In actual operation, the present application needs to first install the sleeper 211 on the cast bridge 1, and then place a movable track 212, wherein the movable track 212 needs to pass through the precast steel bar 11 and be placed on the sleeper 211, and then use the vertical prestress of the web to anchor the track with the precast steel bar 11, and then install the driving mechanism 22 on the movable track 212, wherein the driving mechanism 22 and the web are located at the same horizontal height, and then install the suspension support frame 3, and use the rear anchor system 23 (i.e., the fixing part 231, which is actually the shoulder beam used in the prior art) to fix the suspension support frame 3 on the vertically prestressed precast steel bar 11. It should be noted that the anti-overturning reverse wheel device 4 in the present application is installed on the movable track 212 near one end of the rear anchor system 23 to ensure the overall stability of the device; and the present application shows that the simultaneous construction can be carried out at both ends of the cast bridge 1, so the drawings shown are structural drawings with relative mirror settings along the two ends of the cast bridge 1.

[0034] The anti-rollover reverse wheel device 4 described in the present application includes: a mounting frame 24, the two sides of the mounting frame 24 are covered within the two sides of the wing plate of the movable track 212, and the rollers provided at both ends of the mounting frame 24 are against the top of the two sides of the movable track 212, and a counterweight block 241 is provided on the mounting frame 24; so that the anti-rollover reverse wheel device 4 of the present application adopts the lever principle to optimize the support effect and improve the stability and safety of the load.

[0035] A load-bearing cylinder 25 is also provided on the mounting frame 24, which passes through the movable rail 212 and abuts against the end face of the cast bridge 1, wherein the load-bearing cylinder 25 is specifically arranged between the driving mechanisms 22, and the installation position of the load-bearing cylinder 25 of the present application can further balance the stability of the suspension support frame 3, so as to raise the height of the front end suspension support frame 3 connected to the hanging basket body 5, thereby ensuring that the center of gravity of the present application is always located at the rear side.

[0036] The hanging basket body 5 comprises: a rear door joint truss beam 51 arranged in the hanging support frame 3 and a front door joint truss beam 52 arranged at one end of the hanging support frame 3 away from the cast bridge 1, and the rear door joint truss beam 51 and the front door joint truss beam 52 are arranged horizontally; Bottom form platform 53: The bottom form platform 53 is used to bear the weight of the concrete of the beam section and is a vertical formwork. The steel bars are tied and rolled to form a construction platform, including: a bottom form crossbeam 531 arranged horizontally in the same direction as the front door connecting truss beam 52, wherein one of the bottom form crossbeams 531 is connected to the front door connecting truss beam 52 through a bottom form steel sling 532, and the other bottom form crossbeam 531 passes through the cast bridge 1 and is connected to the rear door connecting truss beam 51 through a bottom form rear sling; a bottom form is laid on the bottom form crossbeam 531.

[0037] The hanging basket body 5 is also provided with a side form hanger 10, which is threadedly connected to the prefabricated steel bars 11 embedded in the cast bridge 1. A safety fence 9 is also provided on the side form hanger 10 to provide a safe construction operation platform for construction workers.

[0038] During normal beam erection, the weight of the front hanging beam 1 is 180t, the weight of the hanging beam 2 is 30t, and the weight of the hanging beam 1 is 3.7t. The weight of the main beam is 11t. The rear side of the main beam is equipped with a 6t counterweight block 241. The weight of the rear wheel is about 0.5t. The weight of the trolley is about 2t.

[0039] An operating method of a walking bridge construction hanging basket device, S1, install the sleepers 211, adjust the height of the walking system 2 according to the transverse slope of the bridge deck design, so that the walking systems 2 on both sides remain horizontal; connect the suspension support frame 3 to the walking system 2, and install the anti-overturning buckle wheel device 4; install the hanging basket body 5 on the suspension support frame 3, and build the formwork system, complete the installation and pour, and form the first section of the concrete bridge; S2, remove all bolts to separate the bottom formwork platform 53 and the side formwork hanger 10 from the precast steel bars 11 on the cast bridge 1, release the rear anchor system 23, start the load-bearing cylinder 25, and separate the movable rail 212 from the sleeper 211 and the suspension system; S3, start the driving mechanism 22, drive the movable track 212 to start moving, and install the sleeper 211 on the first section of the concrete bridge; S4, tighten the rear anchor system 23 to make the track close to the sleeper 211, and release the load-bearing cylinder 25 to make the movable track 212 close to the suspension system, and the suspension system moves along the movable track 212 to a relative position and is fixed; S5, fix the low mold platform and the side mold hanger 10 in sequence, complete the fixation, and then cast; S6, repeat the above steps S2-S5 until the bridge construction is completed.

[0040] The specific operation implementation method of this application is as follows: (This embodiment shows a specific installation method of a walking bridge construction hanging basket device on one side) Install the sleepers 211, and adjust the height of the traveling system 2 according to the transverse slope of the bridge deck design so that the traveling systems 2 on both sides remain level; The vertical prestressed steel bars (prefabricated steel bars anchored on the cast bridge 1) of the web are used to anchor the moving rails 212, and then the motor is installed to travel, and then the suspension support frame 3 is installed; the suspension support frame 3 is fixed to the vertical prestressed steel bars using a shoulder beam; Install the rear door joint truss beam 51 and then install the bottom mold rear sling (that is, the sling is preferably a single Φ32 finely rolled threaded steel bar), wherein the rear door joint truss beam 51 needs to be arranged on the vertical extension line of the end point of the installation part 31 facing the side of the hanging basket body 5, The finished rolled threaded steel bars on the rear door joint truss beam 51 pass through the cast bridge 1 and are installed with a bottom formwork crossbeam 531; Install the front door joint truss beam 52, the finely rolled threaded steel on the front door joint truss beam 52 passes through the cast bridge 1 and is installed with a bottom mold crossbeam 531, another bottom mold crossbeam 531 is installed, a bottom mold distribution beam 54 is installed between the bottom mold crossbeams 531, and a bottom mold is installed on the bottom mold distribution beam 54; it should be noted that the application wears the finely rolled threaded steel on the hanging beam during construction to adjust the height of the construction platform below; Install side form hangers 10 on the low form distribution beams on both sides of the bottom form, install side formwork, and one end of the side form hanger 10 is set on the front door joint truss 52 through a hanger, and the other end is anchored to the precast steel bars 11 on the cast bridge 1, and install safety fences 9; Install the hoisting trolley 8; preload the hanging basket; install the bottom of block 1, the web steel bars and the prestressed pipes; install the inner mold 62 (the inner mold 62 plate is a drawer-type structure, and can be slid into place as a whole along the inner mold 62 running beam from the previous beam section using a hand chain hoist); install the top plate steel bars and prestressed pipes; pour one section of bridge concrete; After the concrete reaches the designed strength and is tensioned; start the subsequent new section's hanging basket formwork; first loosen the bottom form and the side form; release the movable track 212 anchoring system; make the rear end of the track leave the sleeper 211; then lift the load-bearing cylinder 25 to make the front end of the load-bearing track leave the sleeper 211; then open the walking system 2 to move the movable track 212 forward; move to the end of the cast section of the bridge; install the sleeper 211; then press the rear anchor of the main beam to the rear anchor of the track; make the rear end of the track close to the sleeper 211, and fix the anchoring system on the movable track 212 at the same time; then loosen the load-bearing cylinder 25; make the front end of the movable track 212 close to the sleeper 211; open the walking system 2 to move the hanging basket and the formwork forward as a whole to the appropriate position; lock the anchoring system; start the construction of a new section; repeat the above steps until all sections are completed.

[0041] Advantages: The overall center of gravity of the main truss is lowered; the safety factor of the hanging basket construction is improved. The triangular truss is designed to be not easy to tip over during installation, and no diagonal guy rope or diagonal bracing rod 34 is required; the anti-overturning safety is enhanced, and the track is completely anchored by the web plate of the beam body with fine rolled steel; during assembly, the main trusses of the hanging baskets at both ends are connected and fixed by pins, and finally the front and rear doors are used to connect the four main trusses of the hanging basket into a whole, which saves materials and greatly improves the stability of the hanging basket; During the movement of the hanging basket, the design of the motor-driven reducer system makes the forward movement of the trusses on both sides more synchronous, eliminating the risk of the hydraulic walking system 2 encountering resistance during the movement and breaking the hanging basket facilities due to excessive force; The rear crossbeam and front hanger of the bottom mold are equipped with an assembled standardized safety working platform, which greatly reduces the safety risk factor of high-altitude operations.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A walking bridge construction hanging basket device, characterized in that: include: A walking system (2), the walking system (2) being installed on the cast bridge (1) and used to guide the movement of the suspension support frame (3); the walking system (2) being able to move along the cast bridge (1), thereby driving the suspension support frame (3) to move along the extension direction of the cast bridge (1) and controlling the movement distance of the suspension support frame (3); A suspension support frame (3) is arranged on the walking system (2) and is used to support and guide the hanging basket body (5). The suspension support frame (3) evenly distributes the stress to both sides of the walking system (2). An anti-tipping reverse wheel device (4) is also installed between the suspension support frame (3) and the walking system (2). The anti-tipping reverse wheel device (4) is arranged at an end away from the hanging basket body (5). The anti-tipping reverse wheel device (4) is used to pull the center of gravity of the bottom of the suspension support frame (3) to move backwards. The hanging basket body (5) is used to form a construction operation platform and is rigidly connected to a template system (6); The formwork system (6) is used to shape concrete to form a cast bridge, and is supported and fixed by prefabricated steel bars (11) pre-embedded on the cast bridge (1) and the hanging basket body (5).

2. A walking bridge construction hanging basket device as claimed in claim 1, characterized in that: The suspension support frame (3) is provided with a plurality of support members (7) for pulling and tensioning the hanging basket body (5); the suspension support frame (3) is inclined along one side of the moving direction of the walking system (2) and forms an angle with the cast bridge (1).

3. A walking bridge construction hanging basket device as claimed in claim 2, characterized in that: The suspension support frames (3) are mirrored along the central axis of the cast bridge (1) in pairs and arranged horizontally opposite to each other, and any of the suspension support frames (3) comprises: a mounting portion (31), the mounting portion (31) extending in the moving direction of the walking system (2), wherein corresponding connecting rods (32) are provided on both sides of one end of the mounting portion (31), and the connecting rods (32) extend toward the hanging basket body (5) until the end points of the two connecting rods (32) coincide with each other; a tension rod (33) is provided at the point where the end points of the connecting rods (32) coincide with each other, the tension rod (33) and the mounting portion (31) are horizontally arranged in the same plane, and two diagonal bracing rods (34) are provided at one end of the tension rod (33) away from the connecting rod (32), and the diagonal bracing rods (34) extend to the end points on both sides of the other end of the mounting portion (31), and a lifting trolley (8) is also provided on the tension rod (33).

4. A walking bridge construction hanging basket device as claimed in claim 3, characterized in that: The mounting portion (31) is composed of four mounting rods (311) arranged in a rectangular structure. Support components (7) are arranged in sequence on the inner sides of the mounting rods (311). The support components (7) divide the mounting portion (31) into a plurality of triangular areas. In addition, the support components (7) are arranged opposite to each other along two sides of the mounting portion (31) and are connected end to end to the mounting portion (31). The support components (7) located on the side walls respectively abut against the connecting rods (32) and the diagonal bracing rods (34) to divide the suspension support frame (3) into a plurality of triangular areas.

5. A walking bridge construction hanging basket device as claimed in claim 4, characterized in that: The walking system (2) comprises: A walking mechanism (21) comprising a sleeper (211) arranged on the cast bridge (1), a moving track (212) arranged on the sleeper (211), and a walking roller (213) arranged on the moving track (212); A driving mechanism (22) is arranged at the bottom of the mounting rod (311) and is capable of driving the movable track (212) to move; and can be used to cooperate with the provided rear anchor system (23) to fix the track, thereby driving the suspension system to move along the movable track (212); A rear anchor system (23), a fixing member (231) arranged on the mounting portion (31), the fixing member (231) being threadedly connected to a prefabricated steel bar (11) embedded in the cast bridge (1).

6. A walking bridge construction hanging basket device as claimed in claim 5, characterized in that: The anti-overturning reverse wheel device (4) comprises: a mounting frame (24), the mounting frame (24) having two sides covering the two sides of the moving track (212), and rollers provided at the two side ends of the mounting frame (24) abutting against the tops of the two sides of the moving track (212), and a counterweight block (241) is provided on the mounting frame (24).

7. A walking bridge construction hanging basket device as claimed in claim 6, characterized in that: A load-bearing oil cylinder (25) is also provided on the mounting frame (24) and passes through the movable track (212) and abuts against the end surface of the cast bridge (1).

8. The walking bridge construction hanging basket device according to claim 1, characterized in that: The hanging basket body (5) comprises: a rear door joint truss beam (51) arranged in the hanging support frame (3) and a front door joint truss beam (52) arranged at one end of the hanging support frame (3) away from the cast bridge (1), the rear door joint truss beam (51) and the front door joint truss beam (52) being arranged horizontally; Bottom formwork platform (53): The bottom formwork platform (53) is used to bear the weight of the concrete of the beam section and to be a vertical formwork. Steel bars are tied and rolled to form a construction platform, and comprises: a bottom formwork crossbeam (531) arranged horizontally in the same direction as the front door joint truss beam (52), wherein one of the bottom formwork crossbeams (531) is connected to the front door joint truss beam (52) via a bottom formwork steel sling (532), and the other bottom formwork crossbeam (531) passes through the cast bridge (1) and is connected to the rear door joint truss beam (51) via a bottom formwork rear sling; a bottom formwork is laid on the bottom formwork crossbeam (531).

9. A walking bridge construction hanging basket device as claimed in claim 1, characterized in that: A side form hanger (10) is also provided on the hanging basket body (5), and the side form hanger (10) is threadedly connected to a prefabricated steel bar (11) embedded in the cast bridge (1), and a safety fence is also provided on the side form hanger (10).

10. An operating method for a walking bridge construction hanging basket device, characterized in that: S1, installing the sleepers (211), adjusting the height of the walking system (2) according to the designed transverse slope of the bridge deck, so that the walking systems (2) on both sides remain horizontal; connecting the suspension support frame (3) to the walking system (2), and installing the anti-overturning buckle wheel device (4); installing the hanging basket body (5) on the suspension support frame (3), and building the formwork system, completing the installation and pouring, to form the first section of the concrete bridge; S2, removing all bolts to separate the bottom formwork platform (53) and the side formwork hanger (10) from the precast steel bars (11) on the cast bridge (1), releasing the rear anchor system (23), starting the load-bearing cylinder (25), and separating the movable rail (212) from the sleeper (211) and the suspension system; S3, starting the driving mechanism (22), driving the movable track (212) to start moving, and installing the sleepers (211) on the first section of the concrete bridge; S4, pressing the rear anchor system (23) to make the rail close to the sleeper (211), and loosening the load-bearing cylinder (25) to make the movable rail (212) close to the suspension system, and the suspension system moves along the movable rail (212) to a relative position and is fixed; S5, fixing the low formwork platform and the side formwork hanger (10) in sequence, completing the fixing, and then pouring; S6. Repeat the above steps S2-S5 until the bridge construction is completed.

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