CN217870020U - Quick positioning system of steel box girder - Google Patents
Quick positioning system of steel box girder Download PDFInfo
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- CN217870020U CN217870020U CN202221796179.2U CN202221796179U CN217870020U CN 217870020 U CN217870020 U CN 217870020U CN 202221796179 U CN202221796179 U CN 202221796179U CN 217870020 U CN217870020 U CN 217870020U
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- box girder
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Abstract
The utility model relates to a technical field of steel box girder installation location, to the difficult problem of traditional steel box girder location, provided a steel box girder quick positioning system, including erectting the support in the pylon towards river face one side, the support top is provided with the cushion cap, has set up the die block on the cushion cap, and a plurality of three-dimensional jacks have all been erect to the support both sides, and a plurality of three-dimensional jacks that steel box girder both sides correspond the cushion cap both sides are provided with a plurality of interim buttresses, the interim buttress respectively with correspond the push rod butt of vertical jacking cylinder in the three-dimensional jack. This application has the effect of being convenient for fix a position steel box girder.
Description
Technical Field
The application relates to the field of steel box girder installation location, in particular to a steel box girder rapid positioning system.
Background
In the related art, a support is usually erected on one side of a bridge tower, a bearing platform is erected at the top of the support, a bottom template is erected on a bearing platform, a concrete box girder reinforcing mesh is bound on the bottom template, then the steel box girder is hoisted to the bottom template through a crane ship, and then the steel box girder is connected with a steel reinforcement cage and concrete is poured, so that the construction of the steel-concrete combined section is realized.
To above-mentioned correlation technique, when the bridge tower closes on surface of water one side construction steel-concrete combination section, need hoist and mount the steel box roof beam through the crane ship usually to the mounted position of formulating on the die block board, because reasons such as river surface stormy waves, the near term easy emergence is rocked when crane hoist and mount steel box roof beam on the crane ship, need just can place the steel box roof beam to accurate position through the adjustment of removing repeatedly, it is comparatively difficult to lead to the location of steel box roof beam, the efficiency of construction is lower, consequently, there is the improvement space.
SUMMERY OF THE UTILITY MODEL
In order to facilitate the quick accurate positioning to the steel box girder, this application provides a quick positioning system of steel box girder.
The application provides a pair of quick positioning system of steel case roof beam adopts following technical scheme:
the utility model provides a quick positioning system of steel box girder, is including erectting the support in the pylon towards river face one side, the support top is provided with the cushion cap, set up the die block board on the cushion cap, a plurality of three-dimensional jacks have all been erect to the support both sides, and a plurality of three-dimensional jacks that steel box girder both sides correspond the cushion cap both sides are provided with a plurality of interim buttresses, interim buttresses respectively with the push rod butt that corresponds vertical jacking cylinder in the three-dimensional jack.
Through adopting above-mentioned technical scheme, during the installation steel box girder, hoist to a plurality of die block boards top and make the interim buttress of steel box girder both sides respectively with the push rod butt that corresponds the vertical jacking cylinder of three-way jack through the jack-up ship, the cooperation total powerstation orders about the steel box girder through the three-way jack and removes, alright remove to the assigned position steel box girder fast, realize the quick accurate positioning of steel box girder for the location of steel box girder is simple and convenient more, is favorable to promoting the installation effectiveness of steel box girder.
Preferably, the two sides of the bearing platform are provided with chain blocks, and the chain blocks are detachably connected with the outer side of the steel box girder through connecting ropes.
By adopting the technical scheme, after the steel box girder is hoisted to the upper part of the bearing platform by the crane ship, the chain block is connected with the steel box girder, the whole position of the steel box girder is adjusted by the aid of the chain block, and the temporary buttresses on two sides of the steel box girder can be opposite to the push rods of the vertical jacking oil cylinders of the corresponding three-way jacks more quickly.
Preferably, the cushion cap is including setting up a plurality of mutual parallel arrangement's of support top segment bailey roof beam, bailey roof beam all extends towards keeping away from the pylon, all be provided with coupling assembling between bailey roof beam and the pylon.
Through adopting above-mentioned technical scheme, after the support was set up and is accomplished, in the support top installation bailey roof beam alright accomplish the erectting of cushion cap, and then the load of the follow-up steel box girder of being convenient for can transmit to the support on through a plurality of bailey roof beams better, this simple structure is convenient and the practicality is strong.
Preferably, the bottom of each three-way jack is provided with a distribution beam, and the distribution beams cross and are fixed on two adjacent Bailey beams.
Through adopting above-mentioned technical scheme, be favorable to promoting the area of contact between three-way jack and the cushion cap through the distribution roof beam, the load that the steel case roof beam of being convenient for transmitted the three-way jack can be transmitted to on the bailey roof beam through the distribution roof beam better.
Preferably, coupling assembling is including burying the toper screw sleeve on the pylon underground and setting up the anchor slab that is close to pylon one end at the bailey roof beam, the anchor slab is worn to be equipped with locking bolt and toper screw sleeve threaded connection.
Through adopting above-mentioned technical scheme for the difficult displacement that produces of bailey roof beam, the bolster of being convenient for can be more firm vice support top of fixing. Through the pre-buried on the bridge tower of toper thread sleeve, only need pass the anchor slab with the locking bolt and make its and toper thread sleeve threaded connection, alright realize being connected of bailey roof beam and bridge tower, need not to carry out the damaged operation to the bridge tower, reduced the damage of bridge tower.
Preferably, the bottom of the bearing platform is bound with an anti-falling net, and the projection of the anti-falling net on the horizontal plane covers the projection of the plurality of Bailey beams on the horizontal plane.
By adopting the technical scheme, through the arrangement of the anti-falling net, constructors can be caught by the anti-falling net when falling down between the adjacent Bailey beams carelessly, and the safety coefficient of construction on the bearing platform is improved.
Preferably, the temporary buttress comprises a horizontally arranged fixing plate, a plurality of angle steels are vertically and upwards arranged on the upper surface of the fixing plate, and one ends, far away from the fixing plate, of the angle steels are fixedly connected with the steel box girder.
Through adopting above-mentioned technical scheme, utilize the intensity of angle steel self and good shear capacity to promote the steadiness of interim buttress, the vertical jacking cylinder of the three-way jack of being convenient for can more firmly be through buttress with steel case roof beam jack-up.
Preferably, the Bailey beams on two sides of the bearing platform are respectively paved with a supporting plate.
Through adopting above-mentioned technical scheme, through the setting of backup pad, the constructor of being convenient for carries out relevant construction at the cushion cap through the backup pad, is favorable to reducing the condition that the constructor falls from between the adjacent bailey roof beam.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the two side frames at the top of the bracket are provided with a plurality of three-way jacks, a plurality of temporary buttresses are arranged on the two opposite sides of the steel box girder corresponding to the three-way jacks, the temporary buttresses are abutted against push rods of vertical jacking oil cylinders corresponding to the three-way jacks, and the steel box girder is subjected to position adjustment by matching the three-way jacks with a total station, so that the steel box girder can be conveniently and more accurately and quickly moved to a set position;
2. the anti-falling net is bound below the plurality of Bailey beams and the projections of the anti-falling net on the horizontal plane cover the projections of the plurality of Bailey beams on the horizontal plane, so that constructors can be caught by the anti-falling net at the bottom of the Bailey beams when falling down between two adjacent Bailey beams carelessly, and the safety factor of construction on a bearing platform is improved.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of a portion B in fig. 1.
Fig. 4 is a schematic structural diagram for illustrating a connection relationship between a beret beam and a bridge tower according to an embodiment of the present application.
Description of reference numerals:
1. a bridge tower; 2. a support; 3. a bearing platform; 30. a Bailey beam; 31. a bottom template; 32. a distribution beam; 321. double-spliced I-shaped steel; 322. a reinforcing plate; 33. a three-way jack; 34. a support plate; 35. an anti-falling net; 36. a connection assembly; 361. an anchor plate; 362. locking the bolt; 363. a tapered threaded sleeve; 4. a steel box girder; 41. a temporary buttress; 411. a fixing plate; 412. angle steel; 413. a reinforcing rib plate; 5. a chain block.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses quick positioning system of steel box girder, refer to fig. 1 and 2, including erectting at the support 2 of 1 orientation river face one side of bridge tower, 2 tops of support erect cushion cap 3, prop up on cushion cap 3 and be equipped with bottom forms 31, cushion cap 3 extends towards keeping away from bridge tower 1, 3 relative both sides of cushion cap are respectively erect three sets of three- way jack 33, 4 both sides of steel box girder are respectively provided with three sets of interim buttresses 41 vertically downwards, interim buttresses 41 of 4 both sides of steel box girder respectively with the three-way jack 33 one-to-one of cushion cap 3 both sides, three-way jack 33 is including horizontal top push hydro-cylinder, vertical top push hydro-cylinder and vertical top hydro-cylinder, the one end that steel box girder 4 was kept away from to interim buttresses 41 all with the push rod tip butt of vertical top hydro-cylinder in the three-way jack 33 that corresponds.
Referring to fig. 1 and 2, the temporary buttress 41 includes a fixing plate 411 arranged horizontally, four sets of angle steels 412 are fixed vertically upward above the fixing plate 411, the four sets of angle steels 412 are distributed in a rectangular shape, the external corners of the four sets of angle steels 412 face each other, one ends of the angle steels 412 far away from the fixing plate 411 are welded and fixed to the steel box girder 4, and by the arrangement of the angle steels 412, the temporary buttress 41 is not easily deformed when stressed by using the strength and the shearing resistance of the angle steels 412, so that the three-way jack 33 can drive the steel box girder 4 to move more stably through the temporary buttress 41. And a reinforcing rib plate 413 is arranged between the two groups of wing plates of the angle steel 412, so that the overall strength and the bending resistance of the angle steel 412 are further improved.
Referring to fig. 1 and 2, the platform 3 includes a plurality of beret beams 30 horizontally fixed above the support 2, and the plurality of beret beams 30 all extend away from the pylon 1. The bottom of each three-way jack 33 is fixed with a distribution beam 32, the distribution beams 32 are fixed on two adjacent Bailey beams 30 in a crossing manner, each distribution beam 32 comprises a double-spliced I-shaped steel 321, two groups of reinforcing plates 322 are arranged on webs on two opposite sides of each double-spliced I-shaped steel 321, the top and the bottom of each reinforcing plate 322 are fixedly connected with one side, close to the upper wing plate and the lower wing plate of each double-spliced I-shaped steel 321, of each reinforcing plate 322, the overall strength and the bending resistance of each double-spliced I-shaped steel 321 are improved conveniently through the reinforcing plates 322, the contact area between each three-way jack 33 and the bearing platform 3 is increased conveniently through the distribution beams 32 by means of the distribution beams 32, and loads, transmitted to the three-way jacks 33 by the subsequent steel box beams 4, can be better transmitted to the bearing platform 3 through the distribution beams 32.
Referring to fig. 1 and 2, a plurality of chain blocks 5 are further arranged on two opposite sides of the bearing platform 3, one ends of the chain blocks 5 are hung on the bailey beams 30, the other ends, far away from the bailey beams 30, of the chain blocks 5 are hung on connecting ropes, one ends, far away from the chain blocks 5, of the connecting ropes are bound on the outer side of the steel box beam 4, and therefore detachable connection of the steel box beam 4 and the chain blocks 5 is achieved. Through the above arrangement, after the crane ship hoists the steel box girder 4 to the upper side of the bearing platform 3, the chain blocks 5 on the two sides of the bearing platform 3 are connected with the steel box girder 4 through the connecting ropes, the position of the steel box girder 4 is moved in an auxiliary mode through the chain blocks 5, and the temporary buttresses 41 on the two sides of the steel box girder 4 are convenient to be opposite to the top of the push rod of the vertical jacking oil cylinder of the corresponding three-way jack 33.
Referring to fig. 1 and 2, support plates 34 are laid on two sides of the upper surface of the platform 3, in this embodiment, the support plates 34 are wood plates, so that a constructor can conveniently install and adjust the chain block 5 on the platform 3 through the support plates 34.
Referring to fig. 1 and 3, the anti-falling net 35 is further arranged below the bearing platform 3, the projection of the anti-falling net 35 on the horizontal plane covers the projection of the plurality of bailey beams 30 on the horizontal plane, the anti-falling net 35 is bound on the plurality of bailey beams 30 through ropes, and the anti-falling net 35 is arranged, so that constructors can be caught by the anti-falling net 35 when falling from between the adjacent bailey beams 30 carelessly, and the safety factor of construction on the bearing platform 3 is improved.
Referring to fig. 4, a connecting assembly 36 is arranged between the beret 30 and the bridge tower 1, the connecting assembly 36 includes a tapered threaded sleeve 363 embedded in one side of the bridge tower 1 facing the river, the connecting assembly 36 further includes an anchor plate 361 vertically fixed downwards at one end of the beret close to the bridge tower 1, the anchor plate 361 is located on the bottom side of the beret 30 and abuts against the bridge tower 1, a locking bolt 362 perpendicularly penetrates through the anchor plate 361, the locking bolt 362 faces one end of the bridge tower 1 and is in threaded connection with the tapered threaded sleeve, connection between the beret 30 and the bridge tower 1 is achieved, the beret 30 is not prone to offset, and then the cushion cap 3 can be stably erected above the support 2.
The implementation principle of the embodiment of the application is as follows: the steel box girder 4 is lifted to the upper side of the bearing platform 3 through a crane ship, the chain blocks 5 on two sides of the bearing platform 3 are connected with the steel box girder 4 through connecting ropes, the temporary buttresses 41 on two sides of the steel box girder 4 are opposite to the end parts of the push rods of the vertical jacking oil cylinders corresponding to the three-way jacks 33 through the cooperation of the crane ship and the chain blocks 5, and the steel box girder 4 is placed down through the crane ship until the bottom ends of the temporary buttresses 41 are abutted to the end parts of the push rods of the vertical jacking oil cylinders corresponding to the three-way jacks 33. And after the temporary buttress 41 is abutted against the top end of the push rod of the vertical jacking oil cylinder of the corresponding three-way jack 33, the chain block 5 is detached from the steel box girder.
And the steel box girder 4 is driven to move by matching with a total station and matching with a transverse pushing oil cylinder, a longitudinal pushing oil cylinder and a vertical jacking oil cylinder in the three-way jack 33 until the steel box girder 4 is accurately moved to the specified installation position on the bottom template 31, so that the accurate positioning of the steel box girder 4 is realized.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a quick positioning system of steel case roof beam which characterized in that: including setting up support (2) in bridge tower (1) orientation river face one side, support (2) top is provided with cushion cap (3), set up die block board (31) on cushion cap (3), a plurality of three-dimensional jack (33) have all been erect to support (2) both sides, and a plurality of three-dimensional jack (33) that steel box girder (4) both sides correspond cushion cap (3) both sides are provided with a plurality of interim buttresses (41), interim buttress (41) respectively with correspond the push rod butt of vertical jacking cylinder in three-dimensional jack (33).
2. The steel box girder rapid positioning system according to claim 1, characterized in that: both sides of the bearing platform (3) are provided with chain blocks (5), and the chain blocks (5) are detachably connected with the outer side of the steel box girder (4) through connecting ropes.
3. The steel box girder rapid positioning system according to claim 1, characterized in that: cushion cap (3) are including setting up beiLei roof beam (30) at a plurality of mutual parallel arrangement of support (2) top segment, beiLei roof beam (30) all extend towards keeping away from pylon (1), all be provided with coupling assembling (36) between beiLei roof beam (30) and pylon (1).
4. The steel box girder rapid positioning system according to claim 3, wherein: the bottom of the three-way jack (33) is provided with a distribution beam (32), and the distribution beam (32) is fixed on two adjacent Bailey beams (30) in a crossing manner.
5. The steel box girder rapid positioning system according to claim 3, wherein: the connecting assembly (36) comprises a conical threaded sleeve (363) embedded in the bridge tower (1) and an anchor plate (361) arranged at one end, close to the bridge tower (1), of the Bailey beam (30), wherein a locking bolt (362) penetrates through the anchor plate (361) and the locking bolt (362) is in threaded connection with the conical threaded sleeve (363).
6. The steel box girder rapid positioning system of claim 4, wherein: the bottom of the bearing platform (3) is bound with an anti-falling net (35), and the projection of the anti-falling net (35) on the horizontal plane covers the projection of the plurality of Bailey beams (30) on the horizontal plane.
7. The steel box girder rapid positioning system according to claim 1, characterized in that: the temporary buttress (41) comprises a fixing plate (411) horizontally arranged, a plurality of angle steels (412) are vertically and upwards arranged on the upper surface of the fixing plate (411), and one ends, far away from the fixing plate (411), of the angle steels (412) are fixedly connected with the steel box girder (4).
8. The steel box girder rapid positioning system of claim 7, wherein: and supporting plates (34) are respectively paved on the Bailey beams (30) at the two sides of the bearing platform (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221796179.2U CN217870020U (en) | 2022-07-12 | 2022-07-12 | Quick positioning system of steel box girder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221796179.2U CN217870020U (en) | 2022-07-12 | 2022-07-12 | Quick positioning system of steel box girder |
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| CN217870020U true CN217870020U (en) | 2022-11-22 |
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| CN202221796179.2U Active CN217870020U (en) | 2022-07-12 | 2022-07-12 | Quick positioning system of steel box girder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116732887A (en) * | 2023-06-16 | 2023-09-12 | 中铁广州工程局集团有限公司 | Bottom die bent construction method for super-high beam of super-large bridge main tower |
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2022
- 2022-07-12 CN CN202221796179.2U patent/CN217870020U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116732887A (en) * | 2023-06-16 | 2023-09-12 | 中铁广州工程局集团有限公司 | Bottom die bent construction method for super-high beam of super-large bridge main tower |
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