Multi-directional integrated construction device and method for steel-concrete composite beam without lifting platform

Abstract

The application discloses a multi-directional transportation and erection integrated construction device and method of a steel-concrete composite beam without a hoisting platform, and relates to the technical field of bridge engineering. The device comprises a track, which is provided with two groups of directions in the transverse and longitudinal directions; a walking track frame is slidably arranged on the track and can be arranged on the track in the transverse or longitudinal direction to move in different directions; and the device is used for the installation of a steel-concrete composite beam bridge deck plate in the transverse and longitudinal double-direction I-shaped steel track of the bridge deck plate installation area, and then a bottom automatic walking device is installed. The device can move the crane along the track in the working area, can move the bridge deck plate to a specified position for hoisting, and has cantilever conditions around the device, so that the multi-span rapid hoisting of the bridge deck plate is realized. The walking track frame can also be switched to the I-shaped steel tracks in different directions in the transverse and longitudinal directions, and then the transverse and longitudinal hoisting and installation of the bridge deck plate can be carried out, so that the construction range is larger.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge engineering, in particular to a multi-directional transport and erection integrated construction device and method for steel-concrete composite beams without lifting platforms. BACKGROUND

[0002] In recent years, steel-concrete composite beams have been increasingly applied in bridge engineering construction in China and are developing towards large span. It mainly sets shear connectors (nails, channel steel, bent wire, etc.) between the steel beam and the concrete flange plate to resist the lifting and relative sliding of the two at the interface, so that they work together as a whole. It has the advantages of both steel structure and concrete structure, has significant technical and economic benefits and social benefits, is suitable for the national conditions of China's basic construction, and is one of the main development directions of future structural systems.

[0003] For the lifting construction of the precast concrete slab of a large-span steel-concrete composite beam bridge, the conventional method is to transport the slab to the site by a slab car and install it on the ground using a crane or set up a gantry crane on the bridge deck for lifting. If the bridge crosses a river or a valley, the crane installation method cannot be used and is not universally applicable. The gantry crane construction method sets a longitudinal gantry crane track on the bridge deck, and the gantry crane moves longitudinally along the bridge to move the slab to the position where it needs to be lifted. The disadvantages of this method are also obvious. First, the transverse span of the gantry crane is related to the width of the bridge. If the bridge is wide, the construction cost of the gantry crane is high and the construction cost is high. Second, the gantry crane can only move in one direction, which is not flexible, the installation and disassembly process of the crane is complex, and the construction efficiency is low. Third, the gantry crane track has high requirements for the foundation, and the steel beam itself cannot provide the foundation conditions for the track. At the same time, the large-size track will affect the shear connectors on the bridge deck and reduce the reliability of the connection. Fourth, the suspended structure of the gantry crane shakes obviously under the condition of the river or high altitude, which is difficult to fix and may cause the precast slab to shake off or collide with other components, resulting in high construction safety risk. Therefore, it is particularly important to develop a multi-directional transport and erection integrated rapid construction method for steel-concrete composite beam deck slabs without lifting platforms. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a multi-directional transport and erection integrated construction device and method for steel-concrete composite beams without lifting platforms, which solves the above problems.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: a multi-directional transport and erection integrated construction device for steel-concrete composite beams without lifting platforms, comprising:

[0006] The track is provided with two groups of directions in the transverse and longitudinal directions.

[0007] The walking track frame is slidably arranged on the track and can be arranged on the transverse or longitudinal track to move in different directions.

[0008] The walking beam is slidably arranged on the walking track frame to move the bridge deck, and the moving direction of the walking beam is perpendicular to the moving direction of the walking track frame.

[0009] The lifting and transporting device is movably arranged on the top of the walking beam to lift the bridge deck, and the moving direction of the lifting and transporting device is perpendicular to the moving direction of the walking beam.

[0010] The auxiliary lifting mechanism is installed on the top of the lifting and transporting device to assist and stabilize the lifting work of the lifting and transporting device.

[0011] The lifting and transporting device comprises the electric hoist and the sling connected to the bottom of the lifting bridge deck.

[0012] The auxiliary lifting mechanism comprises four auxiliary slings arranged downward on the four corners of the top of the walking beam, and the bottom ends of the auxiliary slings are connected to the middle section of the sling to pull from the four corners and stabilize the sling, and the auxiliary lifting mechanism further comprises a winding and unwinding mechanism for winding and unwinding the auxiliary slings, and the winding and unwinding mechanism applies auxiliary force when the electric hoist works.

[0013] Preferably, the winding and unwinding mechanism comprises:

[0014] The first winding wheel is arranged on the four corners of the top of the walking beam, and the top end of the auxiliary sling is wound on the surface of the first winding wheel.

[0015] The servo motor is arranged on the four corners of the top of the walking beam, and the output end of the servo motor is connected to the central shaft of the first winding wheel through the torque sensor.

[0016] Preferably, the winding and unwinding mechanism comprises:

[0017] The winding shaft is rotatably arranged on the left and right sides of the top of the walking beam.

[0018] The second winding wheel is fixedly connected to the two ends of the winding shaft, and the top end of the auxiliary sling is wound on the surface of the second winding wheel.

[0019] The second servo motor, the output shaft of the second servo motor is provided with a chain wheel, and the chain wheel on the output shaft of the second servo motor is connected to the chain wheel on the winding shaft through the chain.

[0020] The damping assembly is fixedly arranged on the top of the walking beam and is sleeved on the outside of the winding shaft, and the damping assembly applies unidirectional adjustable damping to the winding shaft.

[0021] Preferably, the damping assembly comprises a shell, a rotating drum is arranged in the center of the shell, a plurality of ratchets are arranged on the inner side of the shell, and a plurality of tooth grooves are arranged on the outer side of the rotating drum and matched with the ratchets, the rotating drum is attracted to the ratchet engaging end by magnetic force, and the rotating drum is limited to rotate in one direction in the shell by the cooperation of the ratchets and the tooth grooves.

[0022] Preferably, the inner side of the rotating drum is rotatably connected with a shaft sleeve, the shaft sleeve is fixedly sleeved on the winding shaft through bolts, a plurality of inner magnetic strips are fixedly connected on the outer side of the shaft sleeve in a ring shape, a plurality of outer magnetic strips are fixedly connected on the inner surface of the rotating drum in a ring shape, and the outer magnetic strips and the inner magnetic strips are in consistent number and repel each other.

[0023] Preferably, the shaft sleeve and the winding shaft are axially slid by the cooperation of the key and the key groove, and the anti-skid strips are axially embedded on the surface of the winding shaft corresponding to the positions of the bolts, and the shaft sleeve is fixed on the surface of the winding shaft by tightening the bolts to press the anti-skid strips.

[0024] Preferably, the track is composed of an I-shaped steel, and the bottom of the track is elevated by welding the track support pad.

[0025] Preferably, the walking track frame comprises a cantilever beam, crane legs are welded on the bottom of the cantilever beam at four corners, support columns are installed on the bottom end of the crane legs through the slewing device, the first walking structure is fixedly connected on the bottom end of the support columns, the walking track frame walks on the track through the first walking structure, and the first walking structure is rotated to be arranged on the track in the transverse direction or the longitudinal direction by adjusting the angle of the support columns.

[0026] Preferably, the hoisting and transporting device further comprises a transporting frame, the electric hoist and the auxiliary hoisting mechanism are installed on the transporting frame, and the third walking structure is installed on the four corners of the bottom of the transporting frame.

[0027] The walking track frame walks on the walking track frame through the second walking structure at the four corners of the bottom, and the first walking structure, the second walking structure and the third walking structure are all composed of the walking motor and the walking wheels installed on the output end of the walking motor.

[0028] The application further discloses a multi-directional integrated construction method of the steel-concrete composite beam without the hoisting platform, and specifically comprises the following steps.

[0029] S1, the bridge deck is hoisted by the hoisting and transporting device;

[0030] S2, the bridge deck is moved in the transverse direction and the longitudinal direction by starting the walking track frame, the walking beam and the hoisting and transporting device, the bridge deck is transported to the installation position, the bridge deck is dropped and accurately positioned by starting the hoisting and transporting device and cooperating with the auxiliary hoisting mechanism.

[0031] S3, after the bridge deck of the whole transverse region is installed, the whole walking track frame is lifted by the jack on the counterforce frame, so that it is separated from the transverse track, the first walking structure at the bottom is turned 90° and is erected on the longitudinal track to walk longitudinally;

[0032] S4, the steps S1, S2 and S3 are repeated to complete the hoisting and installation of the bridge deck of all regions.

[0033] The application provides a multi-directional transport and frame integrated construction device and method for steel-concrete composite beams without hoisting platforms.

[0034] 1. The multi-directional transport and frame integrated construction device and method for steel-concrete composite beams without hoisting platforms, first, the transverse and longitudinal I-shaped steel tracks are installed in the steel-concrete composite beam bridge deck installation region, then the bottom automatic walking device is installed, the device can move the crane along the track in the working area, and can move the bridge deck to the specified position for hoisting, the device has cantilever conditions around, realizes the multi-span rapid hoisting of the bridge deck, the walking track frame can be switched to the transverse and longitudinal I-shaped steel tracks, and then the transverse and longitudinal hoisting and installation of the bridge deck can be carried out, and the construction range is larger; meanwhile, the mobile steel structure itself is used as the foundation and the track of the mobile steel structure thereon, the moving direction is flexible, the construction is convenient, a large number of tracks do not need to be carried, the auxiliary hoisting mechanism is used in cooperation with the lifting and transporting device, the shaking in the hoisting process of the bridge deck can be reduced, the use is safer, the burden of the electric hoist can be shared, and the equipment failure rate is reduced.

[0035] 2. The multi-directional transport and frame integrated construction device and method for steel-concrete composite beams without hoisting platforms, the auxiliary connecting cable is wound and unwound by the servo motor cooperating with the torque sensor to drive the winding wheel, the torque borne by the servo motor can be detected in the winding and unwinding process, then the servo motor can be automatically and flexibly controlled in the running speed according to the change of the height of the bridge deck and the change of the angle of the auxiliary connecting cable, and the servo motor can continuously maintain a certain bearing capacity, and the electric hoist maintains a relatively stable and balanced load.

[0036] 3. The multi-directional transportation and erection integrated construction device and method of the steel-concrete composite beam without hoisting platform, by setting the second servo motor to drive the winding shafts on both sides through the chain, the effect of synchronous winding and unwinding of the auxiliary continuous cable on the four corners is realized, multiple motors are not needed to be set for winding, the control difficulty and equipment cost are reduced, the damping assembly is set, the one-way resistance and reverse non-resistance effect can be realized by the cooperation of the ratchet mechanism and the magnetic resistance structure, the resistance is not increased when the second servo motor lifts the bridge deck, the resistance can be applied when the bridge deck is lowered or static, the carrying capacity of the second servo motor is reduced, the second servo motor can be better protected, the magnetic resistance can be adjusted by adjusting the shaft sleeve axial position to indirectly adjust the overlapping length of the inner and outer magnetic strips, the resistance can be adjusted according to the needs, the use is convenient and the cost is low.

[0037] 4. The multi-directional transportation and erection integrated construction device and method of the steel-concrete composite beam without hoisting platform, by setting the electric walking structure at the bottom of the walking track frame, the walking truss car and the hoisting and transporting device, the accurate displacement hoisting can be realized by electric control, the control is convenient; and the first walking structure is installed on the bottom of the walking track frame by the adjustable angle supporting column, the directional movement of the walking track frame and the overall structure thereon is facilitated, the hoisting construction in different directions is realized, and the construction range is larger. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is the top view of the initial hoisting state of the application;

[0039] Figure 2 It is the top view in the hoisting process of the application;

[0040] Figure 3 It is the front view of the application;

[0041] Figure 4 It is the side view of the application;

[0042] Figure 5 It is the schematic view of the hoisting and transporting device and the auxiliary hoisting mechanism of the second embodiment of the application;

[0043] Figure 6 It is the schematic view of the hoisting and transporting device and the auxiliary hoisting mechanism of the third embodiment of the application;

[0044] Figure 7 It is the schematic view of the local structure of the auxiliary hoisting mechanism of the application;

[0045] Figure 8 It is the installation schematic view of the damping assembly and the winding shaft of the application;

[0046] Figure 9 It is the sectional view of the damping assembly of the application;

[0047] Figure 10The construction method flow chart of the present application.

[0048] In the figure: 1, track; 2, track support pad; 3, walking track frame; 31, cantilever beam; 32, crane support leg; 33, support column; 34, first walking structure; 4, walking gantry; 41, second walking structure; 5, bridge deck slab; 6, hoisting and transporting device; 61, electric hoist; 62, sling; 63, transporting frame; 64, third walking structure; 601, walking motor; 602, walking wheel; 7, auxiliary hoisting mechanism; 71, auxiliary connecting cable; 72, first winding wheel; 73, first servo motor; 74, winding shaft; 75, second winding wheel; 76, chain wheel; 77, damping assembly; 771, outer shell; 772, rotating drum; 773, ratchet; 774, tooth groove; 775, shaft sleeve; 776, inner magnetic strip; 777, outer magnetic strip; 778, anti-skid strip; 78, second servo motor. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0050] The present application discloses a multi-directional transport and frame integrated construction device for steel-concrete composite beams without hoisting platforms, and provides the following four technical solutions:

[0051] Figures 1-4 The first embodiment is shown, which comprises:

[0052] The track 1 is provided with two groups of directions in the transverse and longitudinal directions, the track 1 is composed of an I-shaped steel, and the bottom of the track 1 is raised by a welded track support pad 2;

[0053] The walking track frame 3 is slidingly arranged on the track 1, and the walking track frame 3 can be arranged on the track 1 in the transverse or longitudinal direction to move in different directions;

[0054] The walking gantry 4 is slidingly arranged on the walking track frame 3 to move the bridge deck slab 5, and the moving direction of the walking track frame 3 is perpendicular to that of the walking gantry 4;

[0055] The hoisting and transporting device 6 is movably arranged on the top of the walking gantry 4 to hoist the bridge deck slab 5, and the moving direction of the hoisting and transporting device 6 is perpendicular to that of the walking gantry 4;

[0056] The auxiliary hoisting mechanism 7 is installed on the top of the hoisting and transporting device 6 to assist and stabilize the hoisting work of the hoisting and transporting device 6;

[0057] The hoisting and transporting device 6 comprises an electric hoist 61 and a hoisting cable 62 connected to the bottom of the bridge deck 5;

[0058] The auxiliary hoisting mechanism 7 comprises four auxiliary cables 71 arranged downward from the four corners of the top of the walking gantry 4, and the bottom ends of the auxiliary cables 71 are connected to the middle sections of the hoisting cable 62 to pull and stabilize the hoisting cable 62 from the four corners, and further comprises a winding and unwinding mechanism for winding and unwinding the auxiliary cables 71, which applies auxiliary force when the electric hoist 61 is working.

[0059] Firstly, the I-shaped steel track 1 is arranged in the transverse and longitudinal directions in the installation area of the steel-concrete composite bridge deck, and then the automatic walking device is installed, which can move the crane along the track in the working area, and can move the bridge deck 5 to the designated position for hoisting. The walking track frame 3 is provided with cantilever conditions on all sides, realizes the rapid hoisting of the bridge deck 5 in multiple spans, and can be switched to the I-shaped steel tracks 1 in different transverse and longitudinal directions, thereby realizing the transverse and longitudinal hoisting and installation of the bridge deck 5, and the construction range is larger. Meanwhile, the mobile steel structure itself is used as the foundation and the track for the mobile steel structure, the moving direction is flexible, the construction is convenient, and the track does not need to be loaded, the auxiliary hoisting mechanism 7 is used in cooperation with the hoisting and transporting device 6, which can reduce the shaking of the bridge deck 5 during hoisting, is safer to use, can share the burden of the electric hoist 61, and can reduce the equipment failure rate.

[0060] Figure 5 The second embodiment is shown, and the main difference from the first embodiment is that the winding and unwinding mechanism comprises:

[0061] The first winding wheel 72 is arranged on the top of the walking gantry 4 in four corners, and the top end of the auxiliary cable 71 is wound on the surface of the first winding wheel 72;

[0062] The first servo motor 73 is arranged on the top of the walking gantry 4 in four corners, and the output end of the first servo motor 73 is connected to the central shaft of the first winding wheel 72 through a torque sensor.

[0063] The servo motor is used to drive the winding wheel to wind and unwind the auxiliary cable 71, the torque borne by the servo motor can be detected during winding and unwinding, the rotation rate of the servo motor can be automatically and flexibly controlled according to the change of the height of the bridge deck 5 and the change of the angle of the auxiliary cable 71, and the servo motor can continuously maintain a certain bearing capacity, and the electric hoist 61 maintains a relatively stable and balanced load.

[0064] Figures 6-9 The third embodiment is shown, and the main difference from the first embodiment is that the winding and unwinding mechanism comprises:

[0065] The winding shaft 74 is rotatably arranged on the left and right sides of the top of the walking gantry 4;

[0066] The second winding wheel 75 is fixedly connected to the two ends of the winding shaft 74, and the top end of the auxiliary continuous cable 71 is wound on the surface of the second winding wheel 75.

[0067] The second servo motor 78 is provided with a sprocket on the output shaft and the winding shaft 74, and the sprocket on the output shaft of the second servo motor 78 is connected to the sprocket 76 on the winding shaft 74 through a chain transmission.

[0068] The damping assembly 77 is fixed to the top of the walking catwalk 4 and is sleeved on the outside of the winding shaft 74, and the damping assembly 77 applies a unidirectional adjustable damping to the winding shaft 74.

[0069] The damping assembly 77 comprises an outer shell 771, a rotating drum 772 is rotatably arranged in the inner center of the outer shell 771, a plurality of ratchet teeth 773 are rotatably arranged in the inner side of the outer shell 771, and a plurality of tooth grooves 774 adapted to the ratchet teeth 773 are formed on the outer side of the rotating drum 772. The rotating drum 772 is attracted and clamped by the ratchet teeth 773 through magnetic force, and the rotating drum 772 is limited to rotate unidirectionally in the outer shell 771 through the cooperation of the ratchet teeth 773 and the tooth grooves 774. An axle sleeve 775 is rotatably connected to the inner side of the rotating drum 772, and the axle sleeve 775 is sleeved on the outside of the winding shaft 74 through a bolt. A plurality of inner magnetic strips 776 are fixedly connected to the outer side of the axle sleeve 775, and a plurality of outer magnetic strips 777 are fixedly connected to the inner surface of the rotating drum 772. The number of the outer magnetic strips 777 is the same as that of the inner magnetic strips 776, and the outer magnetic strips 777 repel the inner magnetic strips 776.

[0070] The inner side of the axle sleeve 775 and the winding shaft 774 are axially slidably connected through the cooperation of the key and the key groove. Anti-skid strips 778 are axially embedded on the surface of the winding shaft 74 corresponding to the positions of the bolts. The anti-skid strips 778 are rubber strips, which can increase the resistance to avoid the deviation of the bolts. The axle sleeve 775 is fixed to the surface of the winding shaft 74 by tightening the bolts to press the anti-skid strips 778.

[0071] The first servo motor 73 drives the sprocket 76 to rotate through the chain, and then drives the winding shaft 74 and the second winding wheel 75 on it to rotate, thereby realizing the winding and unwinding of the auxiliary continuous cable 71. During the winding process, the winding shaft 74 drives the axle sleeve 775 to rotate forward, and the axle sleeve 775 drives the rotating drum 772 to rotate by using the repulsive force of the inner magnetic strips 776 and the outer magnetic strips 777, and then the rotating drum 772 pushes the ratchet teeth 773 out of the tooth grooves 774 to make the rotating drum 772 rotate smoothly, that is, the magnetic resistance does not limit the rotation of the winding shaft 74. During the unwinding process, the rotating drum 772 rotates reversely, and the ratchet teeth 773 are inserted into the tooth grooves 774 to limit the rotation of the rotating drum 772, and then the repulsive force of the inner magnetic strips 776 and the outer magnetic strips 777 exerts resistance on the axle sleeve 775 and the winding shaft 74.

[0072] The second servo motor 78 cooperates with the chain to drive the winding shaft 74 on both sides, thereby realizing the synchronous winding and unwinding effect of the auxiliary connecting cable 71 on four corners, without the need to set multiple motors for winding, and reducing the control difficulty and equipment cost. Meanwhile, the damping assembly 77 is set, and the cooperation of the ratchet mechanism and the magnetic resistance structure can realize the effect of one-way resistance and reverse non-resistance. When the second servo motor 78 lifts the bridge deck 5, the resistance is not increased, and when the bridge deck 5 is lowered or static, the resistance can be applied, thereby reducing the carrying capacity of the second servo motor 78, and the second servo motor 78 can be better protected. The magnetic resistance can also be adjusted by adjusting the axial position of the shaft sleeve 775 to indirectly adjust the overlapping length of the inner and outer magnetic strips, so that the resistance can be adjusted as needed, which is convenient to use and low in cost.

[0073] Figures 3-4 The fourth embodiment is shown, and the main difference from the first embodiment is that the walking track frame 3 comprises a cantilever beam 31, the bottom four corners of the cantilever beam 31 are welded with crane legs 32, and the bottom ends of the crane legs 32 are installed with support columns 33 through rotary devices, the bottom ends of the support columns 33 are fixedly connected with first walking structures 34, and the walking track frame 3 walks on the track 1 through the first walking structures 34. The first walking structure 34 is rotated in the direction to be erected on the track 1 in the transverse or longitudinal direction by adjusting the angle of the support column 33.

[0074] The rotary device is composed of a rotary motor, a rotary gear and a rotary shaft, the rotary shaft is fixed with the support column 33 and rotates with the crane leg 32, the rotary motor drives the rotary gear to rotate the rotary shaft, thereby driving the support column 33 to rotate, so that the first walking structure 34 can be adjusted in angle, and the angle of the support column 33 is locked by a positioning pin.

[0075] The hoisting and transporting device 6 further comprises a transporting frame 63, the electric hoist 61 and the auxiliary hoisting mechanism 7 are installed on the transporting frame 63, and the third walking structure 64 is installed on the bottom four corners of the transporting frame 63.

[0076] The walking truss 4 walks on the walking track frame 3 through the second walking structure 41 on the bottom four corners, and the first walking structure 34, the second walking structure 41 and the third walking structure 64 all comprise a walking motor 601 and a walking wheel 602 installed on the output end of the walking motor 601.

[0077] The electric walking structure is arranged at the bottom of the walking track frame 3, the walking truss 4 and the hoisting and transporting device 6, which can be controlled electrically to realize accurate displacement hoisting, and the control is convenient. The first walking structure 34 is installed on the bottom of the walking track frame 3 by using the adjustable angle support column 33, which facilitates the directional movement of the walking track frame 3 and the overall structure thereon, realizes hoisting construction in different directions, and has a larger construction range.

[0078] Referring to Figure 10The application further discloses a multi-directional transporting and erecting integrated construction method of the steel-concrete composite beam without a hoisting platform.

[0079] S1, hoisting and transporting the bridge deck slab 5 by using the hoisting and transporting device 6;

[0080] S2, moving the bridge deck slab 5 in the horizontal and vertical directions by controlling the first walking structure 34, the second walking structure 41 and the third walking structure 64 to drive the walking track frame 3, the walking truss trolley 4 and the hoisting and transporting device 6 to move respectively, transporting the bridge deck slab 5 to the installation position, then lowering the hoisting rope 62 of the electric hoist 61 of the hoisting and transporting device 6, and then lowering the bridge deck slab 5, and simultaneously controlling the auxiliary hoisting mechanism 7 to release the auxiliary connecting rope 71 to stabilize the hoisting rope 62, so that the bridge deck slab 5 is stably and accurately lowered;

[0081] S3, after the bridge deck slab 5 around the horizontal region is completely installed, the walking track frame 3 is lifted as a whole by using the jacks on the counterforce frame, so that the walking track frame 3 is separated from the horizontal track 1, the first walking structure 34 at the bottom is controlled to rotate by 90° and is erected on the vertical track 1, and then the walking track frame 3 is controlled to move in the vertical direction;

[0082] S4, repeating the steps S1, S2 and S3 to complete the hoisting and installation of the bridge deck slab in all regions.

[0083] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art, and the model parameters of the electric appliances are not specifically limited, and the conventional equipment can be used.

[0084] It should be noted that, in the present text, the relational terms such as first and second and the like are used only to differentiate one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0085] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-directional integrated construction device for transporting and erecting steel-concrete composite beams without a hoisting platform, characterized in that: include: The track has two sets of directions, one horizontal and one vertical. A traveling track frame, which is slidably mounted on a track, and can be erected on a transverse or longitudinal track to move in different directions; A traveling gantry crane is slidably mounted on a traveling track frame to move the bridge deck, wherein the traveling track frame is perpendicular to the direction of movement of the traveling gantry crane; The lifting and transporting device is movable and mounted on the top of the traveling gantry crane for lifting bridge deck panels, and the lifting and transporting device is perpendicular to the direction of movement of the traveling gantry crane; Auxiliary hoisting mechanism, installed on top of the hoisting and transporting device to assist and stabilize the hoisting and transporting operation; The lifting and transporting device includes an electric hoist and slings for the lifting bridge deck connected to its bottom; The auxiliary hoisting mechanism includes four auxiliary cables extending downward from the four corners of the top of the traveling gantry crane, with the bottom ends of the auxiliary cables connected to the middle sections of the slings to pull and stabilize the slings from the four corners. It also includes a retraction mechanism for the auxiliary cables, which applies auxiliary force when the electric hoist is operating. The retraction mechanism includes: The first take-up reel is located at the four corners of the top of the traveling gantry, and the top of the auxiliary connecting cable is wound around the surface of the first take-up reel; Servo motors are located at the four corners of the top of the traveling gantry crane. The output end of the servo motor is connected to the central shaft of the first winding wheel through a torque sensor. The first servo motor, in conjunction with the torque sensor, drives the first winding wheel to wind up and unwind the auxiliary cable. During the winding and unwinding process, the torque borne by the first servo motor is detected. As the height of the bridge deck changes and the angle of the auxiliary cable changes, the operating speed of the first servo motor is automatically controlled, and the first servo motor and the electric hoist maintain a relatively stable and balanced load. The launching and retracting mechanism includes: The winding shaft is rotatably mounted on the left and right sides of the top of the traveling gantry crane; The second take-up reel is fixedly connected to both ends of the take-up shaft, and the top end of the auxiliary connecting cable is wound around the surface of the second take-up reel; The second servo motor has sprockets mounted on both its output shaft and take-up shaft, and the sprockets on the output shaft of the second servo motor are connected to the sprockets on the take-up shaft via chain drive. A damping assembly is fixed to the top of the traveling gantry and sleeved on the outside of the winding shaft, and the damping assembly applies unidirectional adjustable damping to the winding shaft. The damping assembly includes a housing, with a rotating cylinder rotatably disposed at the center of the housing. Multiple ratchet teeth are rotatably disposed on the inner side of the housing, and a toothed groove adapted to the ratchet teeth is formed on the outer side of the rotating cylinder. The rotating cylinder is magnetically attracted to the ratchet teeth's engaging end. The ratchet teeth and toothed grooves cooperate to restrict the unidirectional rotation of the rotating cylinder within the housing. A bushing is rotatably connected inside the rotating cylinder, and the bushing is bolted and fixed to the outside of the take-up shaft. Multiple inner magnetic strips are circumferentially fixedly connected to the outer side of the bushing, and multiple outer magnetic strips are circumferentially fixedly connected to the inner surface of the rotating cylinder. The number of outer magnetic strips is the same as that of the inner magnetic strips, and they repel each other. The inner side of the bushing and the take-up shaft slide axially through a key and keyway cooperation. Anti-slip strips are axially embedded in the surface of the take-up shaft at the positions corresponding to the bolts. Tightening the bolts presses the anti-slip strips, fixing the bushing to the surface of the take-up shaft.

2. The integrated construction device for multi-directional transport and erection of steel-concrete composite beams without a hoisting platform as described in claim 1, characterized in that: The track is made of I-beams, and the bottom of the track is raised by welded track supports.

3. The integrated construction device for multi-directional transport and erection of steel-concrete composite beams without a hoisting platform as described in claim 1, characterized in that: The traveling track frame includes a cantilever beam, with crane legs welded to the four corners of the bottom of the cantilever beam. Support columns are installed at the bottom of the crane legs via a slewing device. A first traveling structure is fixedly connected to the bottom of the support column. The traveling track frame travels on the track via the first traveling structure. The first traveling structure can be rotated by adjusting the angle of the support column to be erected on the transverse or longitudinal track.

4. The integrated construction device for multi-directional transport and erection of steel-concrete composite beams without a hoisting platform as described in claim 3, characterized in that: The lifting and transporting device also includes a transport frame, on which the electric hoist and auxiliary lifting mechanism are mounted, and at each of the four corners of the bottom of the transport frame a third traveling structure is mounted. The traveling gantry moves on the traveling track frame via the second traveling structure at the four corners of its bottom. The first, second, and third traveling structures all consist of a traveling motor and traveling wheels mounted on its output end.

5. A construction method for an integrated multi-directional transport and erection construction device for steel-concrete composite beams without a hoisting platform as described in any one of claims 1-4, characterized in that: Specifically, the following steps are included: S1. Use lifting and transport equipment to lift the bridge deck; S2. Start the traveling track frame, traveling gantry and lifting and transporting device to move the bridge deck laterally and longitudinally, transport the bridge deck to the installation position, and start the lifting and transporting device in conjunction with the auxiliary lifting mechanism to lower and accurately position the bridge deck; S3. After all the bridge panels around the transverse area are installed, use the jacks on the reaction frame to lift the entire walking track frame, so that it is separated from the transverse track. Then rotate the bottom first walking structure 90° and set it on the longitudinal track for longitudinal walking. S4. Repeat steps S1, S2 and S3 to complete the hoisting and installation of bridge deck panels in all areas.

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