CN212101688U - Device for assisting in hoisting steel box girder - Google Patents
Device for assisting in hoisting steel box girder Download PDFInfo
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- CN212101688U CN212101688U CN202020413708.0U CN202020413708U CN212101688U CN 212101688 U CN212101688 U CN 212101688U CN 202020413708 U CN202020413708 U CN 202020413708U CN 212101688 U CN212101688 U CN 212101688U
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- box girder
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Abstract
The utility model provides a device for assisting in hoisting a steel box girder, which comprises a vertical unit and a horizontal unit, wherein the vertical unit comprises a vertical fixing frame, a first pressure divider and a vertical jack; the horizontal unit comprises a horizontal frame, a fixed block, a second pressure-dividing plate and a horizontal jack; the vertical fixing frame is fixed on the upper surface of the first body unit of the steel box girder, the upper end of the vertical fixing frame is connected with the first pressure dividing plate, and the vertical jack is arranged below the first pressure dividing plate; the fixed block is fixed on the upper surface of the first body unit of the steel box girder, and the second pressure-dividing plate is fixed on the upper surface of the second body unit of the steel box girder along the longitudinal bridge direction; a horizontal jack is arranged on one side of the second pressure dividing plate, the second pressure dividing plate is located between the fixed block and the horizontal jack, and the horizontal frame is sleeved on the periphery of the fixed block and the horizontal jack. The device can adjust the steel box girder to appointed design position, guarantees the accurate welding of individual unit of steel box girder, and easy operation is convenient.
Description
Technical Field
The utility model relates to a steel box girder technical field specifically is a supplementary device of hoist and mount steel box girder.
Background
Currently, steel box girders are widely used in large-span continuous girder bridges, generally consist of top plates, bottom plates and web plates, and have the advantages of good structural integrity, large torsional rigidity and uniform load transverse distribution. Meanwhile, the structure has good overall stability and large transverse bending rigidity. In addition, the steel box girder also has the advantages of high and low girder height, simple and beautiful appearance and the like, so the steel box girder receives more and more extensive attention.
When a large-span continuous steel box girder bridge is built, the section is divided transversely usually due to the large section of the steel box girder, the unit size and the hanging weight are reduced, the design position of the steel box girder can be ensured only by accurately positioning the plane and the elevation before the individual units of the steel box girder are assembled and welded, and meanwhile, the steel box girder is easily interfered by factors such as external environment and the like in the assembling and welding process, so that the dislocation between the individual units of the assembled and welded steel box girder is generated, the serious defect of serious insufficient thickness of welding seams between adjacent individual units is caused, and the safe operation of the whole steel box girder bridge is finally influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a supplementary device of hoist and mount steel box girder to the problem that exists among the prior art, the device can adjust steel box girder to appointed design position, guarantees the accurate welding of individual unit of steel box girder, and easy operation is convenient.
The utility model discloses a realize through following technical scheme:
a device for assisting in hoisting a steel box girder comprises a vertical unit and a horizontal unit, wherein the vertical unit comprises a vertical fixing frame, a first pressure dividing plate and a vertical jack; the horizontal unit comprises a horizontal frame, a fixed block, a second pressure-dividing plate and a horizontal jack;
the steel box girder comprises a first steel box girder body unit and a second steel box girder body unit;
during construction, if the hoisting position of the first body unit of the steel box girder is lower than the hoisting position of the second body unit of the steel box girder, the bottom of the vertical fixing frame is fixed on the upper surface of the first body unit of the steel box girder, the upper end of the vertical fixing frame is connected with the first pressure dividing plate, a vertical jack is installed below the first pressure dividing plate, the end surface of a base of the vertical jack is contacted with the bottom surface of the first pressure dividing plate, one part of the top surface of the vertical jack is positioned above the edge of the upper surface of the first body unit of the steel box girder, and the other part of the top surface of the vertical jack is positioned above the edge of the upper surface of the second body unit;
the fixed block is fixed on the upper surface of the first body unit of the steel box girder, and the second pressure-dividing plate is fixed on the upper surface of the second body unit of the steel box girder along the longitudinal bridge direction; the horizontal jack is placed on one side of the second pressing plate, the second pressing plate is located between the fixing block and the horizontal jack, the horizontal frame is sleeved on the peripheries of the fixing block and the horizontal jack, the inner side face of one end of the horizontal frame is in contact with the end face of the fixing block, and the inner side face of the other end of the horizontal frame is in contact with the end face of the base of the horizontal jack.
Preferably, vertical mount includes the pole setting, and a cantilever steel sheet of pole setting upper end welding, first pressure divider board of cantilever steel sheet bottom welding.
Preferably, a supporting plate is fixed at the lower end of the vertical fixing frame, and the bottom of the supporting plate is fixed on the upper surface of the first body unit of the steel box girder.
Preferably, the fixed block is angle steel, and a right-angle steel plate lateral surface of fixed block contacts with one end medial surface of horizontal frame.
Preferably, the second pressure distributing plate is made of T-shaped steel, and the T-shaped top surface of the second pressure distributing plate is in contact with the top surface of the horizontal jack.
Preferably, the vertical units and the horizontal units are respectively arranged in a plurality, and the vertical units and the horizontal units are alternately arranged on one section of steel box girder.
Compared with the prior art, the utility model discloses following profitable technological effect has:
supplementary device of hoist and mount steel box girder, during the use, the second body unit of steel box girder that will exceed through vertical jack pushes down to with the vertical parallel and level of the first body unit of steel box girder, when reacing with the first body unit parallel and level of steel box girder, surface contact on vertical jack top surface and the first body unit of steel box girder. Meanwhile, the second body unit of the steel box girder is pressed to a position keeping a set distance with the first body unit of the steel box girder in the horizontal direction through a horizontal jack. The contact area between the first pressure-dividing plate and the jack is larger than that between the second pressure-dividing plate and the jack, so that the stress area is enlarged, and the stress concentration is effectively prevented. Supplementary hoist and mount steel box girder's device both can adjust the vertical displacement between the individual unit of steel box girder, can adjust the horizontal displacement between the individual unit of steel box girder again, and the device is simple, and is easy and simple to handle, and the structure is slim and graceful, can adjust steel box girder to appointed design position, guarantees the accurate welding of individual unit of steel box girder.
Further, the backup pad welding is at the lower extreme of vertical mount, and the bottom of vertical mount and backup pad is all welded on the first body unit upper surface of steel box girder, and the backup pad can improve the stability of vertical mount.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic structural view of the vertical unit of the present invention;
fig. 3 is a schematic structural diagram of the horizontal unit of the present invention;
FIG. 4 is a top view of FIG. 1;
FIG. 5 is a schematic sectional view of a steel box girder;
in the figure:
1. the steel box girder comprises a steel box girder, 2 vertical fixing frames, 3 horizontal frames, 4 fixing blocks, 5 first pressure dividing plates, 6 second pressure dividing plates, 7 jacks, 8 first body units of the steel box girder, 9 second body units of the steel box girder and 10 supporting plates.
Detailed Description
Certain embodiments of the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.
Fig. 1-5 show a schematic structural diagram of a device for assisting in hoisting a steel box girder according to an exemplary embodiment of the present invention, the device includes a vertical unit and a horizontal unit, the vertical unit includes a vertical fixing frame 2, a first pressure divider 5 and a vertical jack 7; the horizontal unit comprises a horizontal frame 3, a fixed block 4, a second pressure dividing plate 6 and a horizontal jack 7.
As shown in fig. 5, in one embodiment, the steel box girder 1 is composed of a first steel box girder body unit 8 and a second steel box girder body unit 9.
As shown in fig. 2, during construction, assuming that the hoisting position of the first body unit 8 of the steel box girder is lower than the hoisting position of the second body unit 9 of the steel box girder, the bottom of the vertical fixing frame 2 is welded at the edge of the upper surface of the first body unit 8 of the steel box girder, the upper end of the vertical fixing frame 2 is close to the middle part and is connected with the first pressure divider 5, the vertical jack 7 is welded below the first pressure divider 5, the base end surface of the vertical jack 7 is in contact with the bottom surface of the first pressure divider 5, one part of the top surface of the vertical jack 7 is located above the edge of the upper surface of the first body unit 8 of the steel box girder, and the other part of the top surface of the vertical jack 7 is located above the edge of the upper surface. Namely, the vertical units are always arranged on the individual units of the steel box girder with low hoisting positions, so that the adjacent individual units of the steel box girder with high hoisting positions are jacked downwards through the vertical jacks 7.
In one embodiment, the vertical fixing frame 2 is in a horizontal T shape, that is, the vertical fixing frame 2 comprises a vertical rod, a cantilever steel plate is welded at the upper end of the vertical rod near the middle part, and a first pressure divider 5 is welded at the bottom of the cantilever steel plate.
In one embodiment, a support plate 10 is welded to the lower end of the vertical fixing frame 2, and the bottom of the support plate 10 is also welded to the edge of the upper surface of the first body unit 8 of the steel box girder, and the support plate 10 can improve the stability of the vertical fixing frame 2.
As shown in fig. 3, during the construction, the edge at the 8 upper surfaces of the first body unit of steel box girder of fixed block 4 welding, the edge at the 9 upper surfaces of the second body unit of steel box girder is welded to second minute clamp plate 6, during the use, horizontal jack 7 is placed to one side of second minute clamp plate 6, second minute clamp plate 6 is located between fixed block 4 and horizontal jack 7, horizontal frame 3 overlaps in the periphery of fixed block 4 and horizontal jack 7, 3 one end medial surfaces of horizontal frame and 4 end face contacts of fixed block, 3 other end medial surfaces of horizontal frame and the base end face contact of horizontal jack 7.
The vertical fixing frame 2, the horizontal frame 3, the fixing block 4, the first pressure distributing plate 5, the second pressure distributing plate 6 and the supporting plate 10 are all made of Q345 steel, the contact area of the first pressure distributing plate 5 and the vertical jack 7 is large, the contact area of the second pressure distributing plate 6 and the horizontal jack 7 is large, and stress concentration can be effectively prevented.
The fixed block 4 is made of angle steel, and the outer side surface of a right-angle steel plate of the fixed block 4 is in contact with the inner side surface of one end of the horizontal frame 3. The second pressure dividing plate 6 is made of T-shaped steel, and the T-shaped top surface of the second pressure dividing plate 6 is in contact with the end surface of one end of the horizontal jack 7.
The full welding seam is guaranteed in the steel plate welding process of the device, and the phenomena of missing welding, missing welding and the like are avoided.
As shown in fig. 4, in one embodiment, two vertical units and two horizontal units are placed on the surface of the steel box girder 1, and the vertical units and the horizontal units are alternately arranged. When the steel box girder segment is longer, more vertical units and horizontal units can be arranged.
In other embodiments, the steel box girder 1 is composed of a plurality of individual units, and the vertical unit and the horizontal unit are arranged between two adjacent individual units in the above manner.
A construction method of a device for assisting in hoisting a steel box girder comprises the following steps:
s1, a constructor uses hoisting equipment to hoist a first steel box girder body unit 8 and a second steel box girder body unit 9 to a primary design height (assuming that the hoisting position of the first steel box girder body unit 8 is lower than the hoisting position of the second steel box girder body unit 9), the device is in place at a specified height position, a vertical unit is connected to the first steel box girder body unit 8, and a transverse unit is connected with the first steel box girder body unit 8 and the second steel box girder body unit 9;
s2, starting all the vertical jacks 7 by constructors, and pressing the second body unit 9 of the slightly-raised steel box girder downwards to be vertically flush with the first body unit 8 of the steel box girder through the vertical pressure of the vertical jacks 7;
s3, starting all horizontal jacks 7 by constructors to enable the top surfaces of the horizontal jacks 7 to be in contact with one side surface of the second pressure dividing plate 6, and pressing the second body unit 9 of the steel box girder to be in close contact with the first body unit 8 of the steel box girder through the horizontal pressure of the horizontal jacks 7;
s4, welding the spliced parts between the first body unit 8 of the steel box girder and the second body unit 9 of the steel box girder, wherein the first body unit and the second body unit of the steel box girder are adjusted vertically and horizontally by constructors;
and S5, repeating the steps of S1-S4 to adjust the accurate design position of the subsequent section of the steel box girder 1.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The device for assisting in hoisting the steel box girder is characterized by comprising a vertical unit and a horizontal unit, wherein the vertical unit comprises a vertical fixing frame (2), a first pressure dividing plate (5) and a vertical jack (7); the horizontal unit comprises a horizontal frame (3), a fixed block (4), a second pressure dividing plate (6) and a horizontal jack (7);
the steel box girder (1) comprises a first steel box girder body unit (8) and a second steel box girder body unit (9);
during construction, if the hoisting position of the first steel box girder body unit (8) is lower than the hoisting position of the second steel box girder body unit (9), the bottom of the vertical fixing frame (2) is fixed on the upper surface of the first steel box girder body unit (8), the upper end of the vertical fixing frame (2) is connected with the first pressure dividing plate (5), a vertical jack (7) is installed below the first pressure dividing plate (5), the base end surface of the vertical jack (7) is in contact with the bottom surface of the first pressure dividing plate (5), one part of the top surface of the vertical jack (7) is positioned above the edge of the upper surface of the first steel box girder body unit (8), and the other part of the top surface of the vertical jack (7) is positioned above the edge of the upper surface of the second steel box girder body unit (9);
the fixed block (4) is fixed on the upper surface of the first body unit (8) of the steel box girder, and the second pressure dividing plate (6) is fixed on the upper surface of the second body unit (9) of the steel box girder along the longitudinal bridge direction; horizontal jacks (7) are placed on one side of a second pressure dividing plate (6), the second pressure dividing plate (6) is located between the fixing block (4) and the horizontal jacks (7), the horizontal frame (3) is sleeved on the peripheries of the fixing block (4) and the horizontal jacks (7), the inner side face of one end of the horizontal frame (3) is in end face contact with the fixing block (4), and the inner side face of the other end of the horizontal frame (3) is in end face contact with the base of the horizontal jacks (7).
2. The device for assisting in hoisting the steel box girder according to claim 1, wherein the vertical fixing frame (2) comprises an upright, a cantilever steel plate is welded to the upper end of the upright, and a first pressure divider (5) is welded to the bottom of the cantilever steel plate.
3. The device for assisting in hoisting the steel box girder according to claim 1, wherein a supporting plate (10) is fixed to the lower end of the vertical fixing frame (2), and the bottom of the supporting plate (10) is fixed to the upper surface of the first unit body (8) of the steel box girder.
4. The device for assisting in hoisting the steel box girder according to claim 1, wherein the fixing block (4) is an angle steel, and an outer side surface of a right angle steel plate of the fixing block (4) is in contact with an inner side surface of one end of the horizontal frame (3).
5. The device for assisting in hoisting the steel box girder according to claim 1, wherein the second pressure dividing plate (6) is a T-shaped steel, and a T-shaped top surface of the second pressure dividing plate (6) is in contact with a top surface of the horizontal jack (7).
6. The device for assisting in hoisting the steel box girder according to claim 1, wherein the vertical units and the horizontal units are respectively provided in plurality, and the vertical units and the horizontal units are alternately arranged on one section of the steel box girder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413708.0U CN212101688U (en) | 2020-03-26 | 2020-03-26 | Device for assisting in hoisting steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413708.0U CN212101688U (en) | 2020-03-26 | 2020-03-26 | Device for assisting in hoisting steel box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212101688U true CN212101688U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020413708.0U Active CN212101688U (en) | 2020-03-26 | 2020-03-26 | Device for assisting in hoisting steel box girder |
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| CN (1) | CN212101688U (en) |
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2020
- 2020-03-26 CN CN202020413708.0U patent/CN212101688U/en active Active
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