A hanging basket for long-span super-wide bridge

Abstract

The application discloses a hanging basket for large-span and super-wide bridge, and belongs to the technical field of bridge construction, which comprises a hanging basket body, front and rear upper cross beams fixed at the front end and the middle part of the hanging basket body respectively, the front upper cross beam is connected to the front lower cross beam through a front suspender, and the rear upper cross beam is connected to the rear lower cross beam through a rear suspender; a first support is fixed on the front lower cross beam, the first support is hingedly connected to one end of a diagonal bracing beam, the other end of the diagonal bracing beam extends upward and inclines to the side where the front suspender is located, an upright plate is fixed to the upper end of the diagonal bracing beam, a horizontal guide rod is fixed to the upright plate, the guide rod is slidingly arranged in a sliding sleeve fixed on the front suspender, a damping spring is sleeved outside the guide rod, and the two ends of the damping spring are connected with the upright plate and the front suspender respectively; a longitudinal damping device is connected between the front suspender and the rear suspender, and a transverse damping device is arranged between the rear suspender and the rear upper cross beam. The hanging basket can effectively resist the hidden danger of the hanging basket caused by wind force and improve the safety of construction personnel.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of bridge construction technology, and particularly relates to a hanging basket for large-span and super-wide bridge. BACKGROUND

[0002] The hanging basket construction refers to the method of using the hanging basket to carry out in-situ segmental cantilever operation when pouring a large-span cantilever beam bridge. It does not need to erect a support and does not use a large crane. The hanging basket is often used in the construction of large-span and super-wide bridges, and has the advantages of light structure, simple and convenient assembly, no pressure, etc. compared with other methods. The design principle of the hanging basket is: light self-weight, simple structure, firm and stable, easy to move forward and disassemble and assemble, strong reusability, small deformation after stress, etc. The space under the hanging basket is sufficient, which can provide a large construction operation surface and is beneficial to the construction operation of the steel reinforcement and formwork. The large-span and super-wide bridges are often erected in the valley or river terrain with strong wind, and the existing hanging baskets do not consider the influence of wind resistance in the use process, which has certain safety hazards. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a hanging basket for large-span and super-wide bridge, which can effectively resist the hidden danger of wind force on the hanging basket and improve the safety of construction personnel.

[0004] To achieve the above purpose, the present application provides the following technical scheme:

[0005] A hanging basket for large-span and super-wide bridge, comprising a hanging basket body, a front upper cross beam and a rear upper cross beam fixed at the front end and the middle part of the hanging basket body respectively, the front upper cross beam is connected to a front lower cross beam through a front lifting rod, and the rear upper cross beam is connected to a rear lower cross beam through a rear lifting rod; a first support is fixed on the front lower cross beam, one end of the first support is hingedly connected to a diagonal bracing beam, the other end of the diagonal bracing beam extends upward and inclines to the side of the front lifting rod, an upright plate is fixed at the upper end of the diagonal bracing beam, a transverse guide rod is fixed on the upright plate, the guide rod is slidingly arranged in a sliding sleeve fixed on the front lifting rod, a damping spring is sleeved outside the guide rod, and the two ends of the damping spring are connected with the upright plate and the front lifting rod respectively; a longitudinal damping device is connected between the front lifting rod and the rear lifting rod, and a transverse damping device is arranged between the rear lifting rod and the rear upper cross beam.

[0006] Further, a limiting ring is fixed on the front lifting rod, and the limiting ring is arranged outside the upright plate. Under the action of the damping spring, the upright plate abuts against the inner side of the limiting plate.

[0007] Further, the lower part of the front suspender is fixed with a second support, the second support is rotationally connected with a guide wheel, the outer end of the guide rod is fixedly connected with a pull rope, the pull rope is led out from the outer end of the sliding sleeve and connected to a winding drum through the guide wheel, the winding drum is connected to the front upper cross beam through a third support, the third support is connected with a transmission device, the front upper cross beam is connected with a jacking device, the upper end of the front suspender is connected to a support beam after penetrating through the front upper cross beam, the output end of the jacking device is connected to the support beam and drives the support beam and the front suspender to rise, the front suspender is pulled tight through the transmission device acting on the pull rope, the pull rope acts on the guide rod and tightens the vertical plate to the front suspender.

[0008] Further, the transmission device comprises a rack, a first transmission shaft, a first gear, a second gear, a third gear and a second transmission shaft, the side surface of the front suspender is fixed with a rack along the vertical direction, the rack is engaged with the first gear, the first gear is coaxially connected to the first transmission shaft, the first transmission shaft and the second transmission shaft are rotationally arranged on the third support, the first transmission shaft is simultaneously connected with the second gear, the second gear is engaged with the third gear, and the third gear and the winding drum are simultaneously connected to the second transmission shaft.

[0009] Further, the lower end of the rear upper cross beam is fixed with a vertical beam, the transverse damping device comprises a plurality of arc-shaped steel sheets, each arc-shaped steel sheet is sequentially spliced along the transverse direction and fastened by a clamp, the outermost arc-shaped steel sheet is in abutment with the vertical beam, and the ends of the innermost arc-shaped steel sheet are respectively connected with a pivot, the pivot is rotationally matched with a support seat, and the support seat is fixed on the side surface of the rear suspender.

[0010] Further, the lower end of the vertical beam is rotationally connected with a roller, and the roller is in contact with the upper surface of the box girder.

[0011] Further, the longitudinal damping device comprises a front connecting plate, a center rod, a baffle, an elastic damping ball, a damping sleeve and a rear connecting plate, one end of the center rod is fixed with the front connecting plate connected with the front suspender, the other end of the center rod is slidingly arranged in a channel formed in the center of the damping sleeve, a damping groove with a larger diameter than the channel is simultaneously formed in the channel, the damping groove is filled with the elastic damping ball, and the baffles are uniformly and spacedly fixed on the outer side of the center rod.

[0012] Further, the front lower cross beam and the rear lower cross beam are located in the same horizontal plane, and a longitudinal beam is connected between the front lower cross beam and the rear lower cross beam.

[0013] The beneficial effects of the present application are:

[0014] The hanging basket for long-span super-wide bridge disclosed by the application can make the wind-induced vibration act on the front suspender or the front lower cross beam, and the front suspender and the front lower cross beam are obliquely supported by the inclined bracing beam, so that when the front suspender and the front lower cross beam change the relative angle under the action of the wind force, the damping spring can be stretched or compressed, the internal energy of the damping spring can be converted, and the damping buffering purpose can be achieved, thereby reducing the influence of the wind force on the hanging basket.

[0015] Further, in the hanging basket disclosed by the application, when the wind force acts on the front suspender or the rear suspender, the longitudinal damping device can damp and buffer the longitudinal displacement of the front suspender and the rear suspender, and the transverse damping device can damp and buffer the transverse displacement of the front suspender and the rear suspender, so that the safety of the hanging basket during construction can be improved.

[0016] Other advantages, objects, and features of the application will be set forth in the following specification, and in part will become apparent to those skilled in the art from the practice of the application, or will be learned by the practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the objects, technical solutions and beneficial effects of the application more clear, the application provides the following drawings for description:

[0018] Figure 1 It is a structural schematic view of the hanging basket of the application;

[0019] Figure 2 It is a front view of the hanging basket of the application;

[0020] Figure 3 It is a side view of the hanging basket of the application;

[0021] Figure 4 It is a structural schematic view of the rear upper cross beam;

[0022] Figure 5 It is a structural schematic view of the rear upper cross beam; Figure 4 In the enlarged view at A;

[0023] Figure 6 It is a connection schematic view of the damping spring;

[0024] Figure 7 It is a structural schematic view of the transmission device;

[0025] Figure 8 It is a structural schematic view of the longitudinal damping device.

[0026] The drawings are marked as follows: hanging basket body 1, front upper cross beam 2, rear upper cross beam 3, front hanging rod 4, front lower cross beam 5, rear hanging rod 6, rear lower cross beam 7, first support 8, inclined strut beam 9, vertical plate 10, guide rod 11, sliding sleeve 12, damping spring 13, longitudinal damping device 14, transverse damping device 15, limiting ring 16, second support 17, guide wheel 18, pull rope 19, winding drum 20, third support 21, jacking device 22, support beam 23, rack 24, first transmission shaft 25, first gear 26, second gear 27, third gear 28, second transmission shaft 29, vertical beam 30, arc-shaped steel sheet 31, clamp 32, pivot 33, support seat 34, roller 35, front connecting plate 36, center rod 37, baffle 38, elastic damping ball 39, damping sleeve 40, rear connecting plate 41, channel 42, damping groove 43, longitudinal beam 44. DETAILED DESCRIPTION

[0027] As Figures 1-8 shown, the hanging basket for long-span and wide bridge of the application comprises a hanging basket body 1, front upper cross beams 2 and rear upper cross beams 3 fixed at the front end and the middle of the hanging basket body 1 respectively, the hanging basket body 1 is in the shape of a diamond, the rear end of the hanging basket body 1 is stably fixed on the upper side of the box girder through an anchoring beam, and the front end of the hanging basket body 1 extends outward from the end of the box girder. The lower part of the hanging basket body 1 is slidably connected with the upper part of the box girder through a track, so as to facilitate the displacement of the subsequent hanging basket. The above all belong to the prior art, and those skilled in the art can understand them.

[0028] The front upper cross beam 2 is connected to the front lower cross beam 5 through the front hanging rod 4, the rear upper cross beam 3 is connected to the rear lower cross beam 7 through the rear hanging rod 6, and the front lower cross beam 5 and the rear lower cross beam 7 cooperate to form a support for supporting the bottom formwork; the first support 8 is fixed on the front lower cross beam 5, and a pin shaft arranged in the longitudinal direction is fixed on the first support 8, wherein the longitudinal direction refers to the extension direction of the bridge. The first support 8 is hinged to one end of the inclined strut beam 9 through the cooperation of the pin shaft and the inclined strut beam 9, and the inclined strut beam 9, the front lower cross beam 5 and the front hanging rod 4 are located in the same vertical plane. The other end of the inclined strut beam 9 extends upward obliquely to the side where the front hanging rod 4 is located, forming a triangular support, and the upper end of the inclined strut beam 9 is fixed with the vertical plate 10.

[0029] In the normal state, the vertical plate 10 is arranged along the vertical direction, the horizontal guide rod 11 is fixed on the vertical plate 10, the guide rod 11 is arranged along the horizontal direction, the guide rod 11 is slidably arranged in the sliding sleeve 12 fixed on the front hanging rod 4, the cross sections of the front hanging rod 4 and the rear hanging rod 6 are both in the shape of a flat strip, the sliding sleeve 12 is located on the side of the front hanging rod 4 away from the vertical plate 10, the outer side of the guide rod 11 is sleeved with the damping spring 13, the damping spring 13 is made of a memory alloy material, and the damping spring 13 not only can restore the vertical plate 10 to the original position, but also has a certain damping buffering capacity when stretched or compressed instantaneously. The two ends of the damping spring 13 are connected with the vertical plate 10 and the front hanging rod 4 respectively, the longitudinal damping device 14 is connected between the front hanging rod 4 and the rear hanging rod 6, and the transverse damping device 15 is arranged between the rear hanging rod 6 and the rear upper cross beam 3. The hanging basket disclosed by the application can support the front hanging rod 4 and the front lower cross beam 5 in an inclined manner through the inclined support beam 9, when the front hanging rod 4 and the front lower cross beam 5 change the relative angle under the action of the wind force, the damping spring 13 can be stretched or compressed, the internal energy of the damping spring 13 can be converted, the purpose of damping buffering can be achieved, and the influence of the wind force on the hanging basket is reduced.

[0030] In the embodiment, the front hanging rod 4 is fixed with the limiting ring 16, the limiting ring 16 is in the shape of a quadrilateral, one side of the limiting ring 16 is fixed to the front hanging rod 4, the limiting ring 16 is arranged horizontally, the limiting ring 16 is arranged on the outer side of the vertical plate 10 at the same time, the movement range of the vertical plate 10 is limited in the limiting ring 16, the inner side of the limiting ring 16 abuts against the vertical plate 10 under the action of the damping spring 13, the limiting ring 16 can be used for limiting the movement range of the vertical plate 10, the unstable problem caused by the excessive movement of the vertical plate 10 can be prevented, and the decomposition between the front hanging rod 4 and the front lower cross beam 5 caused by the excessive deflection of the inclined support beam 9 can also be avoided.

[0031] In the embodiment, the lower part of the front hanging rod 4 is fixed with the second support 17, the second support 17 is rotatably connected with the guide wheel 18; the outer end of the guide rod 11 is fixedly connected with the pull rope 19, the pull rope 19 is made of a steel wire rope, the pull rope 19 is pulled out from the outer end of the sliding sleeve 12 and is guided upward through the guide wheel 18, the upper end of the pull rope 19 is connected to the winding drum 20, and the pull rope 19 is wound on the outer side of the winding drum 20; when the winding drum 20 rotates clockwise, the lower pull rope 19 can be wound, and vice versa. Specifically, the winding drum 20 is connected to the front upper cross beam 2 through the third support 21, the third support 21 is connected with the transmission device, the front upper cross beam 2 is connected with the jacking device 22, the upper end of the front hanging rod 4 passes through the front upper cross beam 2 and is connected to the support beam 23, the output end of the jacking device 22 is connected to the support beam 23 and drives the support beam 23 and the front hanging rod 4 to rise, the front hanging rod 4 is pulled tight through the transmission device acting on the pull rope 19, the pull rope 19 acts on the guide rod 11 and pulls the vertical plate 10 tight on the front hanging rod 4.

[0032] The jacking device 22 is used for pressing the bottom formwork. When the bottom formwork is assembled, the jacking device 22 is in a compressed state, at this time, the damping spring 13 normally acts on the vertical plate 10 and the front hoist 4, and can be used for damping and buffering the front hoist 4 in strong wind weather. When the cast-in-place concrete is poured, the jacking device 22 is started to jacking, and the front lower cross beam 5 and the rear lower cross beam 7 are respectively lifted through the front hoist 4 and the rear hoist 6, so that the bottom formwork is lifted and pressed. The front hoist 4 acts on the pull rope 19 through the transmission device to tighten, the pull rope 19 acts on the guide rod 11 and tightens the vertical plate 10 to the front hoist 4, at this time, the vertical plate 10 compresses the damping spring 13 to the limit position, the vertical plate 10 is as close as possible to the front hoist 4, and the damping spring 13 is avoided to work. The damping spring 13 is actively acted on by the above-mentioned mode, which can prevent the shaking problem caused by the normal action of the damping spring 13, and can facilitate the pouring of the box girder in the later period.

[0033] In the embodiment, the transmission device includes a rack 24, a first transmission shaft 25, a first gear 26, a second gear 27, a third gear 28, a second transmission shaft 29, the rack 24 is fixed on the side of the front hoist 4 along the vertical direction, the rack 24 is engaged with the first gear 26, the first gear 26 is coaxially connected to the first transmission shaft 25, the first transmission shaft 25 and the second transmission shaft 29 are rotationally arranged on the third support 21, the first transmission shaft 25 is simultaneously connected with the second gear 27, the second gear 27 is engaged with the third gear 28, and the third gear 28 and the winding drum 20 are simultaneously connected to the second transmission shaft 29. When the jacking device 22 works, the jacking device 22 jacks the supporting beam 23, at this time, the supporting beam 23 drives the front hoist 4 to move upward, the rack 24 installed on the front hoist 4 moves upward, the rack 24 drives the first gear 26 engaged therewith to rotate when the rack 24 moves, the first gear 26 drives the second gear 27 to synchronously rotate through the first transmission shaft 25, the second gear 27 drives the third gear 28 to rotate, and the third gear 28 drives the winding drum 20 to rotate clockwise through the second transmission shaft 29, so that the pull rope 19 can be lifted. The pitch circle diameter of the second gear 27 is greater than the pitch circle diameter of the first gear 26, and the above-mentioned transmission device can enlarge the displacement distance of the rack 24, so that the action of the pull rope 19 is more sensitive, and it is more conducive to compressing the damping spring 13.

[0034] In the embodiment, the lower end of the rear upper cross beam 3 is fixed with a vertical beam 30, the vertical beam 30 is arranged along the vertical direction, the transverse damping device 15 includes a plurality of arc-shaped steel sheets 31, each arc-shaped steel sheet 31 is sequentially spliced along the transverse direction and is fastened and connected through a clamp 32, the outermost arc-shaped steel sheet 31 abuts against the vertical beam 30, and the ends of the innermost arc-shaped steel sheet 31 are respectively connected with a pivot 33, the pivot 33 is rotationally matched with a support seat 34, and the support seat 34 is fixed on the side surface of the front hoist 4. When the middle part of the front hoist 4 is deformed toward the side where the box girder is located under the action of the wind force, the front hoist 4 can act on the vertical beam 30 through the transverse damping device 15, thereby reducing the impact on the vertical beam 30. By adopting the superimposed installation of the plurality of arc-shaped steel sheets 31, the impact of the front hoist 4 can be effectively reduced, the above-mentioned structural device is simple, and the replacement and maintenance can be facilitated. The lower end of the vertical beam 30 is rotationally connected with a roller 35, the roller 35 is in contact with the upper surface of the box girder, and can be used for auxiliary supporting of the vertical beam 30.

[0035] In the embodiment, the longitudinal damping device 14 includes a front connecting plate 36, a center rod 37, a baffle plate 38, an elastic damping ball 39, a damping sleeve 40 and a rear connecting plate 41, one end of the center rod 37 is fixed with the front connecting plate 36 connected with the front hoist 4, the other end of the center rod 37 is slidingly arranged in a passage 42 centrally formed in the damping sleeve 40, a damping groove 43 with a larger diameter than the passage 42 is simultaneously formed in the passage 42, the elastic damping ball 39 is filled in the damping groove 43, the elastic damping ball 39 is a rubber ball, and the baffle plate 38 is uniformly and spacedly fixed on the outer side of the center rod 37. When the front and rear hoists 6 relatively displace in the longitudinal direction, the center rod 37 can move in the damping sleeve 40 along the axial direction, at this time, the baffle plate 38 displaces together with the center rod 37, the baffle plate 38 can compress the elastic damping ball 39 when the baffle plate 38 displaces, the elastic damping ball 39 can play a damping buffering role after being compressed, thereby reducing the impact between the front and rear hoists 6. After the action of the wind force ends, the elastic damping ball 39 returns to the original shape, and can drive the baffle plate 38 and the center rod 37 to return to the original position.

[0036] In some other embodiments, the baffle plate 38 is made of an elastic steel plate material and has a certain elasticity itself, and can play a better and effective damping effect in the process of extruding the elastic damping ball 39 or the elastic damping ball 39 rebounding.

[0037] In the embodiment, the front lower cross beam 5 and the rear lower cross beam 7 are located in the same horizontal plane, and the longitudinal beam 44 is connected between the front lower cross beam 5 and the rear lower cross beam 7, thereby providing a support frame for the bottom mold plate to be cast, and facilitating the installation and disassembly of the bottom mold plate.

[0038] Finally, it should be noted that the above preferred embodiments are merely intended to illustrate the technical solutions of the present application but not to limit the present application. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various modifications can be made in form and details without departing from the scope of the present application defined by the claims.

Claims

1. A hanging basket for long-span, ultra-wide bridges, characterized in that: The system includes a hanging basket body, a front upper crossbeam and a rear upper crossbeam fixed to the front and middle parts of the hanging basket body, respectively. The front upper crossbeam is connected to the front lower crossbeam via a front hanger rod, and the rear upper crossbeam is connected to the rear lower crossbeam via a rear hanger rod. A first support is fixed on the front lower crossbeam, and the first support is hinged to one end of a diagonal brace beam. The other end of the diagonal brace beam extends upward at an angle toward the side where the front hanger rod is located. A vertical plate is fixed to the upper end of the diagonal brace beam, and a transverse guide rod is fixed to the vertical plate. The guide rod slides through a sliding sleeve fixed on the front hanger rod, and a damping spring is sleeved on the outer side of the guide rod. The two ends of the damping spring are connected to the vertical plate and the front hanger rod, respectively. A longitudinal damping device is connected between the front hanger rod and the rear hanger rod, and a transverse damping device is provided between the rear hanger rod and the rear upper crossbeam.

2. The hanging basket for a long-span, ultra-wide bridge according to claim 1, characterized in that: A limiting ring is fixed on the front suspension rod, and the limiting ring is also set on the outside of the vertical plate. Under the action of the damping spring, the vertical plate abuts against the inside of the limiting plate.

3. The hanging basket for a long-span, ultra-wide bridge according to claim 2, characterized in that: The lower part of the front boom is fixed with a second support, and the second support is rotatably connected to a guide wheel; the outer end of the guide rod is fixedly connected to a pull rope, which passes through the outer end of the sliding sleeve and is guided by the guide wheel before being connected to the drum. The drum is connected to the front upper crossbeam through a third support, and a transmission device is connected to the third support. A lifting device is connected to the front upper crossbeam. The upper end of the front boom passes through the front upper crossbeam and is connected to the support beam. The output end of the lifting device is connected to the support beam and drives the support beam and the front boom to rise. The front boom is tightened by the pull rope through the transmission device, and the pull rope acts on the guide rod and tightens the vertical plate to the front boom.

4. The hanging basket for a long-span, ultra-wide bridge according to claim 3, characterized in that: The transmission device includes a rack, a first transmission shaft, a first gear, a second gear, a third gear, and a second transmission shaft. The rack is fixed vertically on the side of the front boom. The rack meshes with the first gear. The first gear is coaxially connected to the first transmission shaft. The first and second transmission shafts are rotatably mounted on a third support. The first transmission shaft is also connected to the second gear. The second gear meshes with the third gear. The third gear and the drum are both connected to the second transmission shaft.

5. A hanging basket for long-span, ultra-wide bridges according to any one of claims 1-4, characterized in that: The lower end of the upper rear crossbeam is fixed with a vertical beam. The lateral damping device includes several arc-shaped steel plates. Each arc-shaped steel plate is spliced ​​together in the lateral direction and fastened together by clamps. The outermost arc-shaped steel plate abuts against the vertical beam. The two ends of the innermost arc-shaped steel plate are respectively connected to pivots. The pivots are rotatably engaged with the support seat. The support seat is fixed to the side of the rear suspension rod.

6. A hanging basket for a long-span, ultra-wide bridge according to claim 5, characterized in that: The lower end of the vertical beam is rotatably connected to a roller, which contacts the upper surface of the box girder.

7. A hanging basket for long-span, ultra-wide bridges according to any one of claims 1-4, characterized in that: The longitudinal damping device includes a front connecting plate, a central rod, a baffle, an elastic damping ball, a damping sleeve, and a rear connecting plate. One end of the central rod is fixed to the front connecting plate connected to the front suspension rod, and the other end of the central rod is slidably disposed in a channel opened in the center of the damping sleeve. A damping groove with a diameter larger than the channel is also opened in the channel. The damping groove is filled with an elastic damping ball. The baffle is fixed at even intervals on the outside of the central rod.

8. A hanging basket for long-span, ultra-wide bridges according to any one of claims 1-4, characterized in that: The front lower crossbeam and the rear lower crossbeam are located in the same horizontal plane, and a longitudinal beam connects the front lower crossbeam and the rear lower crossbeam.

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