CN214733976U

CN214733976U - Lifting station device for lifting overweight cable of cable-stayed bridge

Info

Publication number: CN214733976U
Application number: CN202121019818.XU
Authority: CN
Inventors: 张德长; 陈龙; 彭浩; 王风培; 普银波; 谭晓波
Original assignee: China Railway 11th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Current assignee: China Railway 11th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-11-16
Anticipated expiration: 2031-05-12

Abstract

The utility model discloses a hoisting station device for hoisting an overweight cable of a cable-stayed bridge, which relates to the technical field of large-span bridge construction, and comprises a support truss, a hoisting mechanism and a pre-buried anchoring mechanism, wherein the support truss is fixed on a steel box girder through a plurality of supporting leg mechanisms; the front end of the support truss exceeds the front end of the steel box girder; the lifting mechanism is movably arranged on the top surface of the supporting truss and is used for lifting the coiled cable; and two ends of the pre-buried anchoring mechanism are respectively connected with the supporting truss and the steel box girder and are used for bearing the anchoring stress of the whole device. The utility model discloses direct mount is on the beam surface after the construction of bridge beam surface is accomplished for the play to rise of cable. The whole structure can be assembled into a whole and then hoisted by using a tower crane, and also can be assembled on the top of the tower. By utilizing the cable hoisting device, the overweight cable can be effectively and stably hoisted, and the high-altitude operation risk of the tower crane is reduced; and is convenient for installation, removal and reuse.

Description

Lifting station device for lifting overweight cable of cable-stayed bridge

Technical Field

The utility model relates to a large-span bridge construction technical field, particularly hoisting station device that overweight cable of cable-stay bridge rises to rise.

Background

At present, with the high-speed development of economy in China, the status of traffic engineering construction is particularly important; when roads need to cross sections with complex geological conditions or navigation limit requirements, such as rivers, lakes, seas, railways, valleys and the like, the cable-stayed bridge is increasingly applied to the current road construction as a bridge which has large spanning capacity and can reduce investment cost and construction difficulty, particularly along with the development of scientific technology in recent years, a large number of cable-stayed bridges are adopted by highway, railway and highway-railway dual-purpose bridges, and the span is increasingly large. Under the background, a plurality of problems are often encountered during cable-stayed bridge construction, for example, in the cable-stayed bridge construction process, a tower crane beside a tower column is generally adopted to complete the task of installing a cable-stayed cable on the tower, but with the increase of the span of the cable-stayed bridge, the height of the tower column is increased, the length of the cable-stayed cable is longer and longer, the weight of the cable-stayed cable is heavier and heavier, and the various unsafety of the tower crane is increased due to the limited hoisting weight and the increased height of the tower crane; the larger the span of the cable-stayed bridge is, the higher the tower column is, the more the number of the stay cables is, and particularly, the construction in typhoon areas is realized, so that the lifting risk and the construction cost of the stay cables are higher; at present, a tower crane is also adopted to lift a stay cable on site, but the problems can not be ignored.

SUMMERY OF THE UTILITY MODEL

The defect to existence among the prior art, the utility model discloses a to various unfavorable combinations of tower crane itself, including the height that rises to rise, the weight scheduling problem that rises to rise the cable, the hoisting station device that the cable-stay bridge cable of providing rises to one side, this device has not only considered the stability that rises to rise overweight cable, still helps putting the cable smoothly on putting the cable dish, does well the foreshadowing for subsequent exhibition cable. The structure installation of this lifting station device is not complicated, easy operation, and highly not high, not only can guarantee the stability when rising, still considered later stage dismantlement and recycle, practice thrift the cost. The utility model discloses require lowly to the topography, just can implement hoist and mount after the beam surface construction is accomplished, hang heavily.

In order to achieve the above purpose, the utility model adopts the technical proposal that: a lifting station device for lifting an overweight cable of a cable-stayed bridge comprises a support truss, a lifting mechanism and a pre-buried anchoring mechanism, wherein the support truss is fixed on a steel box girder through a plurality of supporting leg mechanisms; the front end of the support truss exceeds the front end of the steel box girder; the lifting mechanism is movably arranged on the top surface of the support truss and is used for lifting the coiled cable; and two ends of the pre-buried anchoring mechanism are respectively connected with the supporting truss and the steel box girder and are used for bearing the anchoring stress of the whole device.

On the basis of the technical scheme, the steel box girder is provided with the cable releasing disc.

On the basis of the technical scheme, the supporting truss is of a multi-layer Bailey beam structure.

On the basis of the technical scheme, each layer of the Bailey beam of the supporting truss comprises an upper chord and a lower chord, a plurality of vertical rods are arranged between the upper chord and the lower chord, and a first connecting system is arranged between every two adjacent vertical rods.

On the basis of the technical scheme, a first transverse distribution beam is arranged at the joint of the support truss and the support leg mechanism, and a plurality of first U-shaped clamps used for fixing the support truss are arranged on the first transverse distribution beam.

On the basis of the technical scheme, the supporting leg mechanism comprises a plurality of supporting columns, a second connecting system is arranged between every two adjacent supporting columns, the upper ends of the supporting columns are connected with longitudinal distribution beams, and the lower ends of the supporting columns are connected with supporting leg pad beams.

On the basis of the technical scheme, the two ends of the supporting column are respectively provided with a connecting seat, and the connecting seats are fixedly installed on the corresponding longitudinal distribution beams or the supporting leg pad beams and are connected with the corresponding end parts of the supporting column through pin shafts.

On the basis of the technical scheme, the lifting mechanism comprises a slide way, a crane trolley and a lifting hook, the slide way is arranged on the top surface of the supporting truss through a plurality of second transverse distribution beams, and two ends of the slide way are provided with wheel stoppers; the hoisting trolley is arranged on the slide way in a sliding manner; the lifting hook is connected with the trolley through a steel wire rope and a pulley block.

On the basis of the technical scheme, a plurality of second U-shaped clamps used for fixing the support truss are arranged on the second transverse distribution beam.

On the basis of the technical scheme, the pre-buried anchoring mechanism comprises a rear anchor beam, a rear anchor seat and a rear anchor pull rod, the rear anchor beam is installed on the support truss, the rear anchor seat is installed on the steel box girder, and two ends of the rear anchor pull rod are respectively connected with the rear anchor beam and the steel box girder.

The beneficial effects of the utility model reside in that:

the utility model overcomes prior art's defect, after the beam surface construction of bridge is accomplished direct mount on the beam surface for the play to rise of cable. The whole structure can be assembled into a whole and then hoisted by using a tower crane, and also can be assembled on the top of the tower. By utilizing the cable hoisting device, the overweight cable can be effectively and stably hoisted, and the high-altitude operation risk of the tower crane is reduced; and is convenient for installation, removal and reuse.

From this seem, this kind of hoisting station device that cable-stay bridge cable rises to rise can be fast and stable lift by crane overweight cable and carry out the cable hoist and mount to the roof beam face on, installation and dismantlement all convenient and fast, can use repeatedly, reduced the input of material, guaranteed simultaneously to have reduced the safety risk.

Drawings

Fig. 1 is a front view of a lifting station device for lifting an overweight cable of a cable-stayed bridge in the embodiment of the utility model;

fig. 2 is a side view of a lifting station device for lifting an overweight cable of a cable-stayed bridge in the embodiment of the utility model;

fig. 3 is a schematic structural view of a support truss according to an embodiment of the present invention;

fig. 4 is an enlarged schematic view of a first transverse distribution beam portion according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a leg support mechanism in an embodiment of the present invention;

FIG. 6 is an enlarged view of the connecting seat portion of the embodiment of the present invention;

fig. 7 is a schematic structural view of a lifting mechanism in an embodiment of the present invention;

FIG. 8 is a side view of a support truss section in an embodiment of the invention;

fig. 9 is a schematic structural view of an embedded anchoring mechanism in an embodiment of the present invention.

Reference numerals:

1-steel box girder; 11-cable releasing disc;

2-supporting a truss; 21-upper chord; 22-lower chord; 23-a vertical rod; 24-a first connection system; 25-a first transverse distribution beam; 26-a first U-shaped card;

3-a leg support mechanism; 31-a support column; 32-a second connection system; 33-longitudinal distribution beams; 34-leg bolster; 35-a connecting seat; 36-a pin shaft;

4-a lifting mechanism; 41-a slideway; 42-a second transverse distribution beam; 43-a wheel stopper; 44-a trolley; 45-pulley block; 46-a steel cord; 47-a hook; 48-coiling; 49-second U-shaped card;

5, embedding an anchoring mechanism; 51-rear anchor rod; 52-rear anchor beam; 53-rear anchor block.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides a hoisting station device for hoisting an overweight cable of a cable-stayed bridge, which includes a supporting truss 2, a hoisting mechanism 4 and a pre-buried anchoring mechanism 5, wherein the supporting truss 2 is fixed on a steel box girder 1 through a plurality of supporting leg mechanisms 3; the front end of the support truss 2 exceeds the front end of the steel box girder 1; the lifting mechanism 4 is movably arranged on the top surface of the supporting truss 2 and is used for lifting the coiled cable 48; two ends of the pre-buried anchoring mechanism 5 are respectively connected with the supporting truss 2 and the steel box girder 1 and are used for bearing the anchoring stress of the whole device. Specifically, the steel box girder 1 is provided with a cable releasing disc 11.

The support truss 2 is a multi-layer bailey beam structure, and in this embodiment, the support truss 2 is a double-layer bailey beam structure. Referring to fig. 3 and 4, each layer of beret beam of the support truss 2 includes an upper chord 21 and a lower chord 22, a plurality of vertical bars 23 are disposed between the upper chord 21 and the lower chord 22, and a first connecting system 24 is disposed between every two adjacent vertical bars 23. Specifically, a first transverse distribution beam 25 is arranged at the joint of the support truss 2 and the support leg mechanism 3, and a plurality of first U-shaped clamps 26 for fixing the support truss 2 are arranged on the first transverse distribution beam 25.

Referring to fig. 5 and 6, the leg mechanism 3 includes a plurality of support columns 31, a second connection system 32 is disposed between each two adjacent support columns 31, the upper ends of the support columns 31 are connected with longitudinal distribution beams 33, and the lower ends of the support columns 31 are connected with leg pad beams 34. Specifically, two ends of the supporting column 31 are provided with connecting seats 35, and the connecting seats 35 are fixedly mounted on the corresponding longitudinal distribution beam 33 or the supporting leg pad beam 34 and connected with the corresponding end of the supporting column 31 through a pin shaft 36. The landing leg pad beam further strengthens the combination of the lifting platform and the bridge floor, and can bear heavier cables without inclination.

In this embodiment, each connection system adopts the bearing truss that I-steel and channel-section steel were processed, carries out the unit member processing of truss at first, adopts the flange to connect between every unit member, is convenient for install and demolish, adopts flange joint simultaneously, can carry out the assembly of truss as required and the size of support, has stronger suitability, and the turnover of the connection system of being convenient for is suitable for and improves the utilization ratio, makes project and company create effect.

As shown in fig. 7, the lifting mechanism 4 includes a slideway 41, a trolley 44 and a hook 47, the slideway 41 is disposed on the top surface of the supporting truss 2 through a plurality of second transverse distribution beams 42, and wheel stoppers 43 are disposed at both ends of the slideway 41, so as to limit the movement and the movement direction of the trolley; the trolley 44 is arranged on the slideway 41 in a sliding manner; the hook 47 is connected to the trolley 44 via a cable 46 and a pulley block 45. The lifting mechanism can adjust the lifting trolleys, the steel wire ropes and the pulley blocks with different powers according to the weight of the lifted stay cable. In this embodiment, the slideway 41 is a P43 steel rail. Referring to fig. 8, the second transverse distribution beam 42 is provided with a plurality of second U-shaped clips 49 for fixing the support girder 2. The arrangement of the first U-shaped clamp, the second U-shaped clamp and the pin shaft can combine the supporting truss and the distribution beam into a whole, so that the stability and the strength of the whole are improved slightly.

Referring to fig. 9, the pre-buried anchoring mechanism 5 includes a rear anchor beam 52, a rear anchor seat 53 and a rear anchor rod 51, the rear anchor beam 52 is installed on the support truss 2, the rear anchor seat 53 is installed on the steel box girder 1, and two ends of the rear anchor rod 51 are respectively connected with the rear anchor beam 52 and the steel box girder 1. The tail end of the lifting device is provided with a rear anchor beam, the rear anchor beam on the Bailey longitudinal beam of the lifting device is connected with the rear anchor device on the beam surface through a rear anchor pull rod, and the stability of the lifting device is greatly enhanced. The embedded anchoring mechanism and the supporting truss are mainly connected through flanges, so that the whole system can be conveniently installed and dismantled, and meanwhile, an embedded part system can be dismantled without dismantling, and the beam surface is prevented from being damaged.

The utility model discloses a theory of operation does:

and processing and manufacturing the units according to the unit structures of the drawings in advance, and then transporting the units to a specified position for splicing. The distribution beam is fixedly connected with the longitudinal beam through a rail pressing device; slideway andthe distribution beam is also connected and fixed through a rail pressing device. The landing leg pad seat and landing leg pad beam, landing leg pad beam and steel box beam, landing leg pad seat and adopt logical long angle weld to weld with copying between the steel sheet, hf ═ 10mm, if bump with bailey piece montant (down tube) when pressing the rail ware installation, can be with distribution beam and pressure rail ware along vertical suitable adjustment together to satisfy the installation needs. The two ends of the distribution beam are welded with lug plates which pass through

The pin shaft is connected with the supporting leg. The joints of the supporting leg pad seat and the supporting leg male head, and the joints of the distribution beam ear plate and the supporting leg female head need to be filled and compacted with the space between the supporting leg pad seat and the supporting leg male head and the spaces between the supporting leg pad seat and the supporting leg male head. In order to ensure the safety of the main structure of the steel box girder, the amplitude pad girder or the landing pad steel plate at the bottom of the lifting support leg needs to be positioned at the 0-shaped rib position of the steel box girder plate. The landing leg pad seat is connected with the male head end of the Bailey beam at the bottom of the landing leg through a Bailey beam standard pin shaft; after joining, the gap between the distribution beam and the female end of the beret beam needs to be filled with a hardwood or steel plate. In order to ensure the safety of the steel box girder and the support, the pad beam at the bottom end of the supporting leg needs to be welded at the position with the U-shaped rib below the top surface of the steel box girder. The bottom surface of the landing leg pad beam is connected with the top surface of the steel box beam in a welding way; when the support leg pad beam and the cover plate are connected, the I-shaped steel and the cover plate are welded firstly, then the I-shaped steel and the cover plate are welded on the top surface of the steel box beam, and finally the support leg pad beam and the top surface of the steel box beam are welded through the stiffening plate. The lower chords at the front and rear points of the longitudinal beam are fixed on the distribution beam through the clamping grooves. The top end of the longitudinal beam is connected with the distribution beam through a clamping groove; if the clamping groove collides with a vertical rod (an inclined rod) of the Bailey piece during installation, the distribution beam and the clamping groove can properly move together along the longitudinal direction so as to meet the installation requirement. After the whole system is installed, the device needs to be tested and lifted, and the connection condition of each component and the overall safety of the component are checked.

According to the specific implementation mode, when the stay cable is lifted, the hoisting trolleys with different powers are selected according to the weight of the stay cable, the hanging wheel is lowered to the upper side of the trestle or the steamship, and the coiled cable is lifted through the steel wire rope on the hanging wheel. The steel cable of the trolley is slowly lifted through the pulley block, after the trolley is lifted to a certain position away from the bridge deck of the steel box girder, the displacement device of the trolley is started, the trolley moves to the position of the appointed cable tray through the slideway, the trolley is kept in a relatively stable state as much as possible through the wheel stopper, and then the coiled cable is placed through the pulley block until the coiled cable is placed on the cable tray.

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims

1. The utility model provides a lift station device that overweight cable of cable-stay bridge rises to rise, includes braced truss (2), and this braced truss (2) are fixed on steel box girder (1) through a plurality of landing leg mechanisms (3), its characterized in that: the device also comprises a lifting mechanism (4) and a pre-buried anchoring mechanism (5);

the front end of the support truss (2) exceeds the front end of the steel box girder (1);

the lifting mechanism (4) is movably arranged on the top surface of the supporting truss (2) and is used for lifting the coiled cable (48);

and two ends of the pre-buried anchoring mechanism (5) are respectively connected with the supporting truss (2) and the steel box girder (1) and are used for bearing the anchoring stress of the whole device.

2. A cable-stayed bridge overweight cable hoisting station apparatus as set forth in claim 1, characterized in that: and a cable releasing disc (11) is arranged on the steel box girder (1).

3. A cable-stayed bridge overweight cable hoisting station apparatus as set forth in claim 1, characterized in that: the support truss (2) is of a multi-layer Bailey beam structure.

4. A cable-stayed bridge overweight cable hoisting station apparatus as set forth in claim 3, characterized in that: each layer of the Bailey beam of the support truss (2) comprises an upper chord (21) and a lower chord (22), a plurality of vertical rods (23) are arranged between the upper chord (21) and the lower chord (22), and a first connecting system (24) is arranged between every two adjacent vertical rods (23).

5. A cable-stayed bridge overweight cable hoisting station apparatus as set forth in claim 1, characterized in that: the supporting device is characterized in that a first transverse distribution beam (25) is arranged at the joint of the supporting truss (2) and the supporting leg mechanism (3), and a plurality of first U-shaped clamps (26) used for fixing the supporting truss (2) are arranged on the first transverse distribution beam (25).

6. A cable-stayed bridge overweight cable hoisting station apparatus as set forth in claim 1, characterized in that: the supporting leg mechanism (3) comprises a plurality of supporting columns (31), a second connecting system (32) is arranged between every two adjacent supporting columns (31), the upper ends of the supporting columns (31) are connected with longitudinal distribution beams (33), and the lower ends of the supporting columns (31) are connected with supporting leg pad beams (34).

7. A cable-stayed bridge overweight cable hoisting station device according to claim 6, characterized in that: both ends of support column (31) all are provided with connecting seat (35), connecting seat (35) fixed mounting is in corresponding vertical distribution roof beam (33) or landing leg pad roof beam (34) to through the end connection that round pin axle (36) and support column (31) correspond.

8. A cable-stayed bridge overweight cable hoisting station apparatus as set forth in claim 1, characterized in that: the lifting mechanism (4) comprises a slide way (41), a crane trolley (44) and a lifting hook (47), the slide way (41) is arranged on the top surface of the supporting truss (2) through a plurality of second transverse distribution beams (42), and two ends of the slide way (41) are provided with wheel stoppers (43); the lifting trolley (44) is arranged on the slide way (41) in a sliding manner; the lifting hook (47) is connected with the lifting trolley (44) through a steel wire rope (46) and a pulley block (45).

9. A cable-stayed bridge overweight cable hoisting station apparatus as set forth in claim 8, characterized in that: and a plurality of second U-shaped clamps (49) for fixing the support truss (2) are arranged on the second transverse distribution beam (42).

10. A cable-stayed bridge overweight cable hoisting station apparatus as set forth in claim 1, characterized in that: the pre-buried anchor mechanism (5) comprises a rear anchor beam (52), a rear anchor seat (53) and a rear anchor pull rod (51), the rear anchor beam (52) is installed on the support truss (2), the rear anchor seat (53) is installed on the steel box girder (1), and two ends of the rear anchor pull rod (51) are connected with the rear anchor beam (52) and the steel box girder (1) respectively.