CN213802530U - Prefabricated big cantilever track case roof beam hoisting accessory - Google Patents
Prefabricated big cantilever track case roof beam hoisting accessory Download PDFInfo
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- CN213802530U CN213802530U CN202022732076.7U CN202022732076U CN213802530U CN 213802530 U CN213802530 U CN 213802530U CN 202022732076 U CN202022732076 U CN 202022732076U CN 213802530 U CN213802530 U CN 213802530U
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- box girder
- lifting appliance
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Abstract
The utility model relates to a precast large cantilever track box girder hoisting device, which comprises a hoisting tool component, deformed steel bars and a gantry crane for hoisting the hoisting tool component; a hanging sling on the gantry crane is connected with the sling component through a steel wire rope; the four lifting appliance components are placed on the track box girder, lifting appliance mounting holes are formed in the lifting appliance components, correspondingly, preformed holes matched with the lifting appliance mounting holes are formed in the track box girder, and the threaded steel sequentially penetrates through the lifting appliance mounting holes and the preformed holes; the top and bottom of the deformed steel bar are fastened by nuts. The utility model discloses simple structure, design benefit has guaranteed to lift by crane and has shifted in-process roof beam body and do not incline perpendicularly, and wire rope not with roof beam body direct contact, has improved wire rope's life, is applicable to all big cantilever precast beam boards, can be convenient lift by crane the roof beam board, under the circumstances that the assurance lifted by crane safety, has improved the construction speed, the cost is reduced, convenient operation.
Description
Technical Field
The utility model belongs to the technical field of the construction, concretely relates to prefabricated big cantilever track case roof beam hoisting accessory.
Background
In the bridge work progress, need lift by crane the roof beam body in the scene, current traditional hoist is more single, can only lift by crane single prefabricated component, mainly to the less roof beam body of cantilever, can not satisfy the hoist and mount of big cantilever beam body, and traditional hoist lifts by crane big cantilever prefabricated component roof beam body and inclines easily, and factor of safety is lower. Therefore, the development of the lifting appliance suitable for the large cantilever prefabricated member makes the practicability of the lifting appliance and the construction safety in the lifting process of the member extremely important.
The box girder is a common structural form of a long-span bridge, a prefabrication field is generally processed and then transported to the field for installation, and a bridge erecting machine on the field can be combined to erect the box girder in bridge construction, so that the effects of accelerating the progress of engineering and saving the construction period are achieved, and the common box girders at present are divided into a single-line box girder and a double-line box girder.
In the existing urban airport track express line combined construction section, the middle layer is a track box girder, the conventional track traffic adopts a cast-in-place process, the prefabricated weight is large, a lifting appliance needs to be specially designed, and the conventional beam slab can be damaged by lifting at the bottom of a pocket.
In view of the above technical problems, improvements are needed.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the defect among the prior art, provide a simple structure, suitability stronger, the on-the-spot precast beam of being convenient for lift by crane, convenient operation, factor of safety high prefabricated big cantilever track case roof beam hoisting accessory.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a box girder hoisting device for a prefabricated large cantilever track comprises a hoisting tool assembly, deformed steel bars and a gantry crane for hoisting the hoisting tool assembly; a hanging sling on the gantry crane is connected with the sling component through a steel wire rope; the number of the lifting appliance components is 4, the lifting appliance components are placed on the track box girder, lifting appliance mounting holes are formed in the lifting appliance components, correspondingly, preformed holes matched with the lifting appliance mounting holes are formed in the track box girder, and the threaded steel sequentially penetrates through the lifting appliance mounting holes and the preformed holes; the top and bottom of the deformed steel bar are fastened by nuts.
As a preferred scheme of the utility model, the top and the bottom of the deformed steel bar are respectively sleeved with a flat backing plate and a wedge backing plate; the flat base plate is attached to the top of the lifting appliance component and is fastened through a nut; the wedge-shaped base plate is attached to the bottom of the track box girder and is fastened through nuts.
As an optimized scheme of the utility model, be provided with a plurality of limit baffle on hanging the hoist, be formed with the spacing groove between the adjacent limit baffle, wire rope hangs on the spacing groove.
As an optimized scheme of the utility model, be equipped with the joint fastener that is used for adjusting wire rope length on the wire rope, this joint fastener is made by the aluminum alloy material.
As an optimized proposal of the utility model, the deformed steel bar is
The finish-rolled deformed steel bar of (1).
As a preferred scheme of the utility model, the hanger component comprises a top plate and a bottom plate; the top plate and the bottom plate are connected through a support plate; two symmetrical ear plates are vertically and fixedly arranged on the top plate, pin shaft holes are arranged at the upper parts of the ear plates, the two pin shaft holes are connected through a pin shaft, and a steel wire rope fixing sleeve is sleeved outside the pin shaft; and the steel wire rope is wound on the steel wire rope fixing sleeve.
As a preferred scheme of the utility model, a reinforcing ring is arranged on the inner side of the ear plate, and the reinforcing ring is sleeved on the pin shaft and positioned between the steel wire rope fixing sleeve and the ear plate; the outer side of the lug plate is provided with a round nut which is sleeved on the pin shaft.
As an optimized scheme of the utility model, the otic placode passes the roof and offsets and lean on the bottom plate, and the hoist mounting hole assembles on roof and bottom plate.
As a preferred scheme of the utility model, four inner reinforcing rib plates and four outer reinforcing rib plates are fixedly arranged between the top plate and the ear plates; the four inner reinforcing rib plates are symmetrically arranged, and the four outer reinforcing rib plates are symmetrically arranged.
As an optimized scheme of the utility model, otic placode, roof, backup pad, bottom plate, interior reinforcing floor, outer reinforcing floor, flat backing plate and wedge backing plate all adopt Q345B steel sheet to make, and the steel sheet thickness of hoist subassembly and flat backing plate is not less than 2 cm.
The utility model has the advantages that:
the utility model has simple structure and ingenious design, changes the traditional beam bottom lifting method, and the traditional beam bottom lifting easily causes the beam body to be damaged, the wire rope is broken, and the construction safety factor is reduced; the utility model discloses guaranteed to lift by crane and transfer process in the roof beam body not slope perpendicularly, and wire rope not with roof beam body direct contact, improved wire rope's life, adopt 16 finish rolling screw-thread steel hoists, improved the factor of safety that the roof beam body lifted by crane greatly, be applicable to all big cantilever precast beam boards, the roof beam board that lifts by crane that can be convenient under the circumstances that the assurance lifted by crane safety, improved construction speed, the cost is reduced, convenient operation.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a front view of the spreader assembly of the present invention.
Fig. 4 is a side view of the spreader assembly of the present invention.
Fig. 5 is a schematic view of the connection between the deformed steel bar and the wedge-shaped backing plate and the nut of the present invention.
Fig. 6 is a usage state diagram of the present invention.
Reference numbers in the figures: the steel wire rope hanger comprises an ear plate 1, a reinforcing ring 2, a round nut 3, a top plate 4, a supporting plate 5, a bottom plate 6, an inner reinforcing rib plate 7, an outer reinforcing rib plate 8, a hanger assembly 10, a hanger mounting hole 11, deformed steel bars 12, nuts 13, a flat base plate 14, a wedge base plate 15, a pin shaft hole 16, a pin shaft 17, a steel wire rope fixing sleeve 18, a gantry crane 20, a hanging hanger 30, a limit baffle 31, a limit groove 32, a joint fastener 33, a steel wire rope 40, a track box girder 50 and a reserved hole 51.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1 to 6, the hoisting device for the box girder of the prefabricated large cantilever track provided by the embodiment comprises a spreader assembly 10, deformed steel bars 12 and a gantry crane 20 for hoisting the spreader assembly 10; the hanging spreader 30 on the gantry crane 20 is connected with the spreader component 10 through a steel wire rope 40; the two lifting appliance assemblies 10 are arranged, the lifting appliance assemblies 10 are placed on the track box girder 50, lifting appliance mounting holes 11 are formed in the lifting appliance assemblies 10, correspondingly, preformed holes 51 matched with the lifting appliance mounting holes 11 are formed in the track box girder 50, and the deformed steel bars 12 sequentially penetrate through the lifting appliance mounting holes 11 and the preformed holes 51; the top and bottom of the deformed steel bar 12 are fastened by nuts 13; the utility model provides a track box girder hoisting accessory suitability is stronger, the on-the-spot precast beam of being convenient for lift by crane, convenient operation, factor of safety is high.
Specifically, the spreader assembly 10 includes a top plate 4 and a bottom plate 6; the top plate 4 and the bottom plate 6 are connected through a support plate 5; two symmetrical ear plates 1 are vertically and fixedly arranged on the top plate 4, pin shaft holes 16 are arranged at the upper parts of the ear plates 1, the two pin shaft holes 16 are connected through a pin shaft 17, and a steel wire rope fixing sleeve 18 is sleeved outside the pin shaft 17; the steel wire rope 40 is wound on the steel wire rope fixing sleeve 18; a reinforcing ring 2 is arranged on the inner side of the ear plate 1, and the reinforcing ring 2 is sleeved on the pin shaft 17 and positioned between the steel wire rope fixing sleeve 18 and the ear plate 1; the outer side of the lug plate 1 is provided with a round nut 3, and the round nut 3 is sleeved on the pin shaft 17; wherein, the ear plate 1 passes through the top plate 4 and leans against the bottom plate 6, and the hanger mounting hole 11 is assembled on the top plate 4 and the bottom plate 6.
Four inner reinforcing rib plates 7 and four outer reinforcing rib plates 8 are fixedly arranged between the top plate 4 and the ear plates 1; the four inner reinforcing rib plates 7 are symmetrically arranged, and the four outer reinforcing rib plates 8 are symmetrically arranged; the whole hanger assembly 10 is supported and reinforced, and the use safety is further ensured.
The top and the bottom of the deformed steel bar 12 are respectively sleeved with a flat backing plate 14 and a wedge-shaped backing plate 15; the flat backing plate 14 is attached to the top of the lifting appliance component 10 and is fastened through a nut 13; the flat backing plate 14 is adopted, the contact area between the flat backing plate 14 and the upper top plate 4 of the lifting appliance component 10 is increased, and the wedge-shaped backing plate 15 is attached to the bottom of the track box girder 50 and is fastened through the nut 13; the wedge-shaped base plate 15 is matched with the outer contour of the track box girder 50, so that the stability and the safety of the girder in the hoisting and assembling construction processes are ensured, the nut 13 is prevented from being in direct contact with the track box girder 50, and the quality of a finished product is effectively ensured.
During hoisting, the track box girder 50 is hoisted through the steel wire suspension hanger 30 on the gantry crane 20, one end of the steel wire rope 40 is suspended on the suspension hanger 30, and the other end of the steel wire rope is wound on the steel wire rope fixing sleeve 18; the wire rope 40 is provided with a joint fastener 33 for adjusting the length of the wire rope 40, and the joint fastener 33 is made of an aluminum alloy material.
The utility model discloses changed the method that lifts by crane at the bottom of traditional roof beam body pocket, lift by crane at the bottom of traditional pocket and cause the roof beam body damaged easily, the disconnected silk of wire rope reduces construction safety factor. The utility model discloses guaranteed to lift by crane and transfer process in the roof beam body not slope perpendicularly, and wire rope not with roof beam body direct contact, improved wire rope's life, adopt 8 finish rolling screw-thread steel hoists, improved the factor of safety that the roof beam body lifted by crane greatly, be applicable to all big cantilever precast beam boards, the roof beam board that lifts by crane that can be convenient under the circumstances that the assurance lifted by crane safety, improved construction speed, the cost is reduced, convenient operation.
In particular, the deformed steel bar 12 is
The finish-rolled deformed steel bar of (1); the requirement of tensile strength is met; the ear plate 1, the top plate 4, the supporting plate 5, the bottom plate 6, the inner reinforcing rib plate 7, the outer reinforcing rib plate 8, the flat base plate 14 and the wedge-shaped base plate 15 are all made of Q345B steel plates, and the thicknesses of the steel plates of the lifting appliance component 10 and the flat base plate 14 are not less than 2 cm; the strength requirement is met.
A plurality of limiting baffles 31 are arranged on the hanging hanger 30, a limiting groove 32 is formed between every two adjacent limiting baffles 31, and the steel wire rope 40 is hung on the limiting groove 32; by adopting the scheme, the lifting appliance component 10 is connected with the gantry crane 20 through the steel wire rope 40, one end of the steel wire rope 102 is fixed on the gantry crane 20, the other end of the steel wire rope is wound on the pin shaft steel wire rope fixing sleeve 18 of the lifting appliance component 10, and the suspension lifting appliance 30 is provided with the plurality of limiting baffle plates 31, so that the steel wire rope 40 can be effectively prevented from sliding back and forth in the lifting process of the track box girder 50 to influence the lifting balance and cause safety accidents.
In the embodiment, before hoisting, trial hoisting is firstly carried out, and after the first trial hoisting is successful, the screwing position of the nut 13 is treated to be marked obviously, so that the nut is prevented from being unscrewed in place for the second hoisting. Adopt the utility model discloses the hoist lifts by crane track case roof beam 50, need respectively reserve 8 lifting belt holes in advance at 50 both sides plate tops of track case roof beam, adopts the roof trompil, and smart steel hoist and mount mode, a slice track case roof beam 50 adopt four hoist hoists, have improved the factor of safety of construction, have guaranteed construction safety.
A method for prefabricating and lifting a large cantilever box girder comprises the following steps: after the track box girder 50 is prestressed, tensioned and grouted by the reserved hole 51, the hanger assembly 10 is manually installed, the deformed steel bar 12 penetrates into the hanger installation hole 11, the flat base plate 14 is arranged at the top of the hanger, and the high-strength round nut 13 is screwed firmly; and then slowly lowering the lifting appliance assembly 10, installing a flat base plate 14 and a wedge base plate 15 on the contact surface of the finish rolling deformed steel bar 12 connected with the lifting appliance after the finish rolling deformed steel bar extends into the reserved hole 51, screwing in the high-strength round nut 13 for fixing, and lifting the track box girder 50 after the nut 13 is screwed in place.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the steel wire rope hanger comprises terms such as an ear plate 1, a reinforcing ring 2, a round nut 3, a top plate 4, a supporting plate 5, a bottom plate 6, an inner reinforcing rib plate 7, an outer reinforcing rib plate 8, a hanger assembly 10, a hanger mounting hole 11, deformed steel bars 12, nuts 13, a flat base plate 14, a wedge base plate 15, a pin shaft hole 16, a pin shaft 17, a steel wire rope fixing sleeve 18, a gantry crane 20, a hanging hanger 30, a limit baffle 31, a limit groove 32, a joint fastener 33, a steel wire rope 40, a track box girder 50, a reserved hole 51 and the like, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. The utility model provides a prefabricated big cantilever track case roof beam hoisting accessory which characterized in that: comprises a spreader component (10), deformed steel bars (12) and a gantry crane (20) for hoisting the spreader component (10); a hanging hanger (30) on the gantry crane (20) is connected with the hanger component (10) through a steel wire rope (40); the four lifting appliance components (10) are arranged, the lifting appliance components (10) are placed on the track box beam (50), lifting appliance mounting holes (11) are formed in the lifting appliance components (10), correspondingly, preformed holes (51) matched with the lifting appliance mounting holes (11) are formed in the track box beam (50), and the threaded steel (12) sequentially penetrates through the lifting appliance mounting holes (11) and the preformed holes (51); the top and bottom of the deformed steel bar (12) are fastened by nuts (13).
2. The hoisting device for the box girder of the large precast cantilever track according to claim 1, wherein a flat backing plate (14) and a wedge backing plate (15) are respectively sleeved on the top and the bottom of the deformed steel bar (12); the flat backing plate (14) is attached to the top of the lifting appliance component (10) and is fastened through a nut (13); the wedge-shaped backing plate (15) is attached to the bottom of the track box girder (50) and fastened through a nut (13).
3. The hoisting device for the box girder of the large precast cantilever track according to claim 1, wherein the suspension hanger (30) is provided with a plurality of limit baffles (31), a limit groove (32) is formed between adjacent limit baffles (31), and the steel wire rope (40) is suspended on the limit groove (32).
4. The hoisting device of the precast large cantilever rail box girder according to claim 3, wherein the steel wire rope (40) is provided with a joint fastener (33) for adjusting the length of the steel wire rope (40), and the joint fastener (33) is made of aluminum alloy.
5. The hoisting device for the box girder of the large precast cantilever rail according to claim 1 or 2, wherein the deformed steel bar (12) is
The finish-rolled deformed steel bar of (1).
6. The precast large cantilever rail box girder hoisting device according to claim 1 or 2, wherein the spreader assembly (10) comprises a top plate (4) and a bottom plate (6); the top plate (4) is connected with the bottom plate (6) through a supporting plate (5); two symmetrical ear plates (1) are vertically and fixedly arranged on the top plate (4), pin shaft holes (16) are formed in the upper portions of the ear plates (1), the two pin shaft holes (16) are connected through a pin shaft (17), and a steel wire rope fixing sleeve (18) is sleeved outside the pin shaft (17); the steel wire rope (40) is wound on the steel wire rope fixing sleeve (18).
7. The hoisting device for the prefabricated large cantilever track box girder according to claim 6, wherein the inner side of the ear plate (1) is provided with the reinforcing ring (2), and the reinforcing ring (2) is sleeved on the pin shaft (17) and positioned between the steel wire rope fixing sleeve (18) and the ear plate (1); the outer side of the ear plate (1) is provided with a round nut (3), and the round nut (3) is sleeved on the pin shaft (17).
8. The hoisting device of the precast large cantilever rail box girder according to claim 7, wherein the ear plate (1) passes through the top plate (4) and abuts against the bottom plate (6), and the hanger mounting holes (11) are assembled on the top plate (4) and the bottom plate (6).
9. The hoisting device for the precast large cantilever rail box girder according to claim 8, wherein four inner reinforcing rib plates (7) and four outer reinforcing rib plates (8) are fixedly arranged between the top plate (4) and the ear plates (1); the four inner reinforcing rib plates (7) are symmetrically arranged, and the four outer reinforcing rib plates (8) are symmetrically arranged.
10. The hoisting device for the box girder of the large precast cantilever track according to claim 9, wherein the ear plate (1), the top plate (4), the support plate (5), the bottom plate (6), the inner reinforcing rib plate (7), the outer reinforcing rib plate (8), the flat base plate (14) and the wedge-shaped base plate (15) are all made of Q345B steel plates, and the thickness of the steel plates of the hanger assembly (10) and the flat base plate (14) is not less than 2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022732076.7U CN213802530U (en) | 2020-11-23 | 2020-11-23 | Prefabricated big cantilever track case roof beam hoisting accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022732076.7U CN213802530U (en) | 2020-11-23 | 2020-11-23 | Prefabricated big cantilever track case roof beam hoisting accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213802530U true CN213802530U (en) | 2021-07-27 |
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ID=76937404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022732076.7U Active CN213802530U (en) | 2020-11-23 | 2020-11-23 | Prefabricated big cantilever track case roof beam hoisting accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213802530U (en) |
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2020
- 2020-11-23 CN CN202022732076.7U patent/CN213802530U/en active Active
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