CN208151832U - A kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system - Google Patents
A kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system Download PDFInfo
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- CN208151832U CN208151832U CN201820412955.1U CN201820412955U CN208151832U CN 208151832 U CN208151832 U CN 208151832U CN 201820412955 U CN201820412955 U CN 201820412955U CN 208151832 U CN208151832 U CN 208151832U
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- steel case
- steel
- main body
- girder
- arch rib
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Abstract
The utility model discloses a kind of top steel box-girders of introversion formula steel case arch rib Integral lifting system, including cube shaped main body steel case, the main body steel case is surrounded by top plate and bottom plate and web, more than two steel box-girder pedestals are fixed at intervals with below the main body steel case, by lifting bracket steel pipe support below the steel box-girder pedestal；The main body steel case is spaced along the vertical direction is equipped with more than two lifting hole locations, and the promotion hole location of the lower lift device of the lifting hole location and introversion formula steel case arch rib Integral lifting system corresponds.Introversion formula steel case arch rib can be carried out to primary promotion rapidly, safely, whole to assembled position, to substantially increase the construction efficiency of arch rib assembly by the utility model.
Description
Technical field
The utility model relates to bridge construction field more particularly to a kind of introversion formula steel case arch rib Integral lifting systems
Top steel box-girder.
Background technique
Currently, being generally used the segmented lifting steel box arch rib section of crane barge in carrying out Large Steel case construction stages of arch bridge
In place, the disposable lifting weight of this construction method is easy the restriction by crane barge mechanical performance for section and successively assembly, also holds
Vulnerable to the influence of weather and landform, it is lower to lift efficiency, and high altitude operation process increases, and then increases difficulty of construction and safety
Hidden danger, thus design a kind of system that can integrally promote large-scale steel box arch rib arch bridge be very it is necessary to.Encircleed using steel case
Bridge steel box arch rib Integral lifting system, after the segmental construction to steel case arch bridge elevation lower part, elevation higher position
This lifting system can be used in steel box arch rib part, by part arch rib property integral hoisting again after low level carries out assembled
In place, it can so be connected rapidly with the segment position for the elevation lower completed, greatly improve steel case arch bridge
The efficiency that arch rib closes up reduces a large amount of high altitude operation time, reduces risk, increases the safety of construction.Therefore it is
Guarantee that this technique can smoothly be implemented, the lifting system steel box-girder design of the system head is highly important.
Utility model content
The utility model discloses a kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system, can will in
Formula of inclining steel case arch rib carries out primary promotion rapidly, safely, whole to assembled position, to substantially increase arch rib
Assembled construction efficiency.
To achieve the above object, the technical solution of the utility model is：
A kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system, including cube shaped main body steel
Case, the main body steel case are surrounded by top plate and bottom plate and web, are fixed at intervals with more than two steel below the main body steel case
Box beam pedestal, by lifting bracket steel pipe support below the steel box-girder pedestal；The main body steel case is spaced along the vertical direction to be worn
There are two above lifting hole location, the lower lift of the lifting hole location and introversion formula steel case arch rib Integral lifting system is filled
The promotion hole location set corresponds.
Further, the inner wall of the top plate and bottom plate of the main body steel case and web is spaced and is connected with several main body steel
Case ribbed stiffener, horizontal direction elongated arrangement of the main body steel case ribbed stiffener along main body steel case.
Further, vertical interval is connected with two pieces or more of diaphragm plate inside the main body steel case, and the four of diaphragm plate
Side is connect with the top plate and bottom plate of main body steel case and web respectively, the position that the diaphragm plate intersects with main body steel case ribbed stiffener,
U-type groove is offered at diaphragm plate so that main body steel case ribbed stiffener passes through；Hollow out someone hole in the middle part of the diaphragm plate.
Further, the steel box-girder pedestal is the steel case of cuboid, and the steel box-girder base inner wall is transversely and vertical
To the pedestal stiffener for being equipped at intervals with two pieces or more, the upper surface of pedestal stiffener and the separately below top plate with steel box-girder pedestal
It is welded with bottom plate.
Further, the inside of the lifting bracket steel pipe top is fixedly connected with cross stiffening plate.
Further, based on the height of the main body steel case ribbed stiffener steel case vertical cross-section width 1/8 ~ 1/6, above
At least 3 groups are symmetrically arranged with respect to main body steel case short transverse median plane with following main body steel case ribbed stiffener, front and back
Main body steel case ribbed stiffener main body steel case width direction median plane be symmetrically arranged at least 3 groups.
Further, the length of the steel box-girder pedestal is long 10 ~ 25cm more each than main body steel case width two sides, and width is at least
The 1/2 of lifting bracket steel pipe caliber.
Further, the first backing plate is set between the steel box-girder pedestal and main body steel case, and the first backing plate is rectangle, described
First backing plate length is identical as steel box-girder pedestal, and width is long 10 ~ 25cm more each than steel box-girder base width two sides, steel box-girder pedestal with
The junction of first backing plate is welded with two pieces or more of the first triangle stiffener.
Further, the second backing plate is set between the lifting bracket steel pipe and steel box-girder pedestal, the second backing plate be it is rectangular,
Between the junction of the long 5 ~ 10cm of the caliber of second backing plate side ratio lifting bracket steel pipe, the second backing plate and lifting bracket steel pipe is uniform
Every being welded at least 8 piece of second triangle stiffener.
Preferably, the two sides of the lifting hole location are respectively arranged with diaphragm plate, and the lateral surface of every piece of diaphragm plate vertically leads to
It is long to be equidistantly connected at least 3 pieces lifting hole location stiffeners.
A kind of top steel box-girder of above-described introversion formula steel case arch rib Integral lifting system has following excellent
Point：
（1）The main body of the utility model uses steel box structure, and light weight, rigidity is big, and can carry out low level spelling in land
It is segmented after dress to lift to installation site, easy construction.
（2）The utility model further sets engraved structure for diaphragm plate, and is arranged in the biggish place of stress, can save
About material, and reasonable stress further improve the load-bearing capacity of main body steel case；
（3）It can be with the lower lift device phase of introversion formula steel case arch rib Integral lifting system by the utility model
Cooperation, the lower lift device for carrying arch rib is promoted using steel strand wires, thus enable arch rib rapidly, safely,
Whole primary promotion is not influenced to assembled position by crane barge mechanical performance and weather, landform, and construction stability is good, safety
Property it is high, moreover it is possible to greatly improve the construction efficiency of arch rib assembly.
Detailed description of the invention
Fig. 1 is the overall structure positive structure diagram of the utility model.
Fig. 2 is the overlooking structure diagram of main body steel case in Fig. 1.
Fig. 3 is the enlarged structure schematic diagram of A-A section in Fig. 1.
Fig. 4 is the enlarged structure schematic diagram of B-B section in Fig. 1.
Fig. 5 is the enlarged structure schematic diagram that hole location is lifted in Fig. 2.
Fig. 6 is the partial structurtes facade enlarged diagram of the utility model.
Fig. 7 is the partial structurtes side enlarged diagram of the utility model.
Fig. 8 is the enlarged structure schematic diagram of lifting bracket steel pipe and the connection of the second backing plate.
In figure, main body steel case 1, diaphragm plate 2 lifts hole location 3, steel box-girder pedestal 4, and lifting bracket steel pipe 5 lifts hole location and adds
Strength plate 6, main body steel case ribbed stiffener 7, the first triangle stiffener plate 8, the first backing plate 9, pedestal stiffener 10, the second triangle stiffener
11, the second backing plate 12, cross stiffening plate 13.
Specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail, but the protection scope of the utility model is unlimited
In following embodiment.
A kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system, referring to figs. 1 and 2, including
Cube shaped main body steel case 1, main body steel case 1 is surrounded by top plate and bottom plate and web, and in the present embodiment, 1 section of main body steel case is high
Degree is 2 meters, and width is 1.6 meters, depth-width ratio 1.25.More than two steel box-girder bottoms are fixed at intervals with below main body steel case 1
Seat 4, steel box-girder pedestal 4 are supported by lifting bracket steel pipe 5 below, and lifting bracket steel pipe 5 is fixed on cushion cap；1 edge of main body steel case
Vertical direction interval is equipped with more than two lifting hole locations 3, and lifting hole location 3 is integrally promoted with introversion formula steel case arch rib is
The promotion hole location of the lower lift device of system corresponds.Introversion formula steel case arch rib Integral lifting system be include top steel
Hoisting mechanism is arranged for carrying arch rib in box beam and lower lift device, lower lift device on the steel box-girder of top, such as hydraulic
Jack, hydraulic jack promotes lower lift device by steel strand wires, to realize the promotion of arch rib.Lift hole location 3 and lower part
Lifting device hole location corresponds, it is ensured that steel strand wires are straight.It is fixed with elongated seamless steel pipe inside lifting hole location 3, is lifted
Jack anchor plate is set at the top of hole location 3, and jack anchor plate is for protecting jack.
For the bearing capacity and non-deformability for guaranteeing main body steel case 1, as shown in connection with fig. 3, the top plate of main body steel case 1, bottom
The inner wall of plate and web, which is spaced, is connected with several main body steel case ribbed stiffeners 7, and main body steel case ribbed stiffener 7 is along main body steel case 1
The elongated arrangement of horizontal direction.In the present embodiment, 1 vertical cross-section width of steel case based on the height of main body steel case ribbed stiffener 7
1/8 ~ 1/6, the opposite main body steel case short transverse median plane of above and below main body steel case ribbed stiffener 7 is symmetrically arranged at least 3
The main body steel case ribbed stiffener main body steel case width direction median plane of group, front and back is symmetrically arranged at least 3 groups, main body steel case
Ribbed stiffener 7 is equidistant welding.
For the integral strength for further increasing main body steel case 1, the vertical interval in 1 inside of main body steel case is connected with two pieces or more
Corresponding stress larger part is arranged between main body steel case 1 and 4 link position of steel box-girder pedestal in diaphragm plate 2, diaphragm plate 2.In conjunction with
Shown in Fig. 4, four sides of diaphragm plate 2 are connect with the top plate and bottom plate of main body steel case 1 and web respectively, and diaphragm plate 2 adds with main body steel case
The position that strength rib 7 intersects, at diaphragm plate 2 offers U-type groove so that main body steel case ribbed stiffener 7 passes through, its remaining part of diaphragm plate 2
It is closely welded with main body steel case 1 position.2 middle part hollow out someone hole of diaphragm plate of the present embodiment, people hole be approximate ellipsoidal, such one
Come, material cost can be saved, while being also convenient for being overhauled inside main body steel case 1.Diaphragm plate 2 and main body steel case ribbed stiffener 7
Construction increase integrally-built stiffness and strength, improve the safety of structure.
It further, is the intensity for improving steel box-girder pedestal 4, steel box-girder pedestal 4 is also the steel case of cuboid, in conjunction with figure
Shown in 6 and Fig. 7, steel box-girder base inner wall is transversely equipped at intervals with two pieces or more of pedestal stiffener 10, this implementation with longitudinal direction
Longitudinal measure shown in example diagram has 3 pieces of pedestal stiffeners 10, and transverse weld has 2 pieces of pedestal stiffeners 10.Pedestal stiffener 10
The upper surface of and weld together separately below with the top plate of steel box-girder pedestal 4 and bottom plate.
Likewise, reinforcement processing has also been made to lifting bracket steel pipe 5 to improve the support strength of lifting bracket steel pipe 5,
The inside at 5 top of lifting bracket steel pipe is fixedly connected with cross stiffening plate 13.In general, the central axes of cross stiffening plate 13 with
The central axes of lifting bracket steel pipe 5,4 central axes of steel box-girder pedestal point-blank, to keep center of gravity consistent.
Further, as shown in connection with fig. 7, to eliminate the problems in stress collection, the length of steel box-girder pedestal 4 is than main body steel case
Each 10 ~ the 25cm of length in 1 width two sides, width are at least the 1/2 of lifting bracket steel pipe caliber.And in steel box-girder pedestal 4 and main body steel
First backing plate 9 is set between case 1, and the first backing plate 9 is rectangle, and 9 length of the first backing plate is identical as steel box-girder pedestal 4, and width compares steel
The junction of each 10 ~ 25cm of length in 4 width two sides of box beam pedestal, steel box-girder pedestal 4 and the first backing plate 9 is welded with the of two pieces or more
One triangle stiffener 8.In the present embodiment, the width and length of combining main body steel case 1 and steel box-girder pedestal 4, by steel box-girder pedestal 4
Length be set as long 10cm more each than 1 width two sides of main body steel case, 9 width of the first backing plate be arranged than 4 width two of steel box-girder pedestal
Each long 20cm in side, the first triangle stiffener 8 are symmetrically arranged with 7 groups, spacing 0.2m.
To realize being stably connected with for lifting bracket steel pipe 5 and steel box-girder pedestal 4, lifting bracket steel pipe 5 and steel box-girder pedestal 4
Between the second backing plate 12 is set, in conjunction with shown in Fig. 6,7 and 8, for the second backing plate 12 also to be rectangular, 12 side ratio of the second backing plate promotes branch
The junction uniform intervals of the long 5 ~ 10cm of the caliber of frame steel pipe, the second backing plate and lifting bracket steel pipe are welded at least 8 piece second
Triangle stiffener 11.In the present embodiment, the long 8cm of caliber of 12 side ratio lifting bracket steel pipe of the second backing plate.
Due to more weak at lifting hole location 3, as shown in connection with fig. 5, the two sides of lifting hole location 3 are respectively arranged with diaphragm plate 2,
The lateral surface of every piece of diaphragm plate 2 is vertically elongated to be equidistantly connected at least 3 pieces lifting hole location stiffeners 6, passes through 2 He of diaphragm plate
Lifting hole location stiffener 6 can reinforce weakness, ensure that the support strength of main body steel case 1.
The present embodiment is also significantly saved while effectively improving top steel box girder overall stiffness, intensity
Material.Steel case arch bridge steel box arch rib can be carried out primary promotion rapidly, safely, whole to assembled position by the utility model
It sets, to substantially increase the construction efficiency of arch rib assembly.
Claims (10)
1. a kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system, including cube shaped main body steel case,
The main body steel case is surrounded by top plate and bottom plate and web, it is characterised in that：Two are fixed at intervals with below the main body steel case
Above steel box-girder pedestal, by lifting bracket steel pipe support below the steel box-girder pedestal；The main body steel case is along the vertical direction
It is spaced and is equipped with more than two lifting hole locations, under the lifting hole location and introversion formula steel case arch rib Integral lifting system
The promotion hole location of portion's lifting device corresponds.
2. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 1, feature exist
In：The top plate and bottom plate of the main body steel case and the inner wall of web, which are spaced, is connected with several main body steel case ribbed stiffeners, the master
Horizontal direction elongated arrangement of the body steel case ribbed stiffener along main body steel case.
3. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 2, feature exist
In：Vertical interval is connected with two pieces or more of diaphragm plate inside the main body steel case, four sides of diaphragm plate respectively with main body steel case
Top plate and bottom plate connected with web, the position that the diaphragm plate intersects with main body steel case ribbed stiffener offers U at diaphragm plate
Type groove is so that main body steel case ribbed stiffener passes through；Hollow out someone hole in the middle part of the diaphragm plate.
4. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 1, feature exist
In：
The steel box-girder pedestal is the steel case of cuboid, and the steel box-girder base inner wall is transversely equipped at intervals with two with longitudinal
Pedestal stiffener more than block, the upper surface of pedestal stiffener and is welded with the top plate of steel box-girder pedestal and bottom plate separately below.
5. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 1, feature exist
In：
The inside of the lifting bracket steel pipe top is fixedly connected with cross stiffening plate.
6. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 2, feature exist
In：
The 1/8 ~ 1/6 of steel case vertical cross-section width, above and below main body based on the height of the main body steel case ribbed stiffener
Steel case ribbed stiffener is symmetrically arranged at least 3 groups with respect to main body steel case short transverse median plane, and the main body steel case of front and back adds
Strength rib main body steel case width direction median plane is symmetrically arranged at least 3 groups.
7. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 1, feature exist
In：
The length of the steel box-girder pedestal is long 10 ~ 25cm more each than main body steel case width two sides, and width is at least lifting bracket steel pipe
The 1/2 of caliber.
8. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 1, feature exist
In：First backing plate is set between the steel box-girder pedestal and main body steel case, the first backing plate is rectangle, the first backing plate length with
Steel box-girder pedestal is identical, and width is long 10 ~ 25cm more each than steel box-girder base width two sides, the connection of steel box-girder pedestal and the first backing plate
Place is welded with two pieces or more of the first triangle stiffener.
9. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 5, feature exist
In：
Second backing plate is set between the lifting bracket steel pipe and steel box-girder pedestal, and the second backing plate is rectangular, the second backing plate side length
5 ~ 10cm longer than the caliber of lifting bracket steel pipe, the junction uniform intervals of the second backing plate and lifting bracket steel pipe are welded at least
8 piece of second triangle stiffener.
10. the top steel box-girder of introversion formula steel case arch rib Integral lifting system according to claim 3, feature exist
In：
The two sides of the lifting hole location are respectively arranged with diaphragm plate, the vertically elongated equidistant connection of the lateral surface of every piece of diaphragm plate
There are at least 3 pieces lifting hole location stiffeners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820412955.1U CN208151832U (en) | 2018-03-26 | 2018-03-26 | A kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820412955.1U CN208151832U (en) | 2018-03-26 | 2018-03-26 | A kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system |
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| Publication Number | Publication Date |
|---|---|
| CN208151832U true CN208151832U (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820412955.1U Expired - Fee Related CN208151832U (en) | 2018-03-26 | 2018-03-26 | A kind of top steel box-girder of introversion formula steel case arch rib Integral lifting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN208151832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904841A (en) * | 2019-11-07 | 2020-03-24 | 中铁大桥局集团有限公司 | Bridge girder lifting method and system |
| CN111188278A (en) * | 2020-02-18 | 2020-05-22 | 中交路桥建设有限公司 | Jig frame structure, jig frame assembly and construction method |
-
2018
- 2018-03-26 CN CN201820412955.1U patent/CN208151832U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904841A (en) * | 2019-11-07 | 2020-03-24 | 中铁大桥局集团有限公司 | Bridge girder lifting method and system |
| CN110904841B (en) * | 2019-11-07 | 2021-08-10 | 中铁大桥局集团有限公司 | Bridge girder lifting method and system |
| CN111188278A (en) * | 2020-02-18 | 2020-05-22 | 中交路桥建设有限公司 | Jig frame structure, jig frame assembly and construction method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181127 Termination date: 20200326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |