CN117702639A - Steel box girder integral launching device and steel box girder integral launching transportation method - Google Patents
Steel box girder integral launching device and steel box girder integral launching transportation method Download PDFInfo
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- CN117702639A CN117702639A CN202311721468.5A CN202311721468A CN117702639A CN 117702639 A CN117702639 A CN 117702639A CN 202311721468 A CN202311721468 A CN 202311721468A CN 117702639 A CN117702639 A CN 117702639A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 162
- 239000010959 steel Substances 0.000 title claims abstract description 162
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000007723 transport mechanism Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
- E01D21/065—Incremental launching
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The application provides a steel box girder integral launching device and a steel box girder integral launching transportation method, wherein the steel box girder integral launching transportation device comprises a water transportation mechanism, a stopping platform, a launching transportation mechanism and a driving structure; the water transport mechanism is loaded with steel box girders welded into a whole and is movably arranged on a stopping platform on a water-launching field in an inland river region; the launching transportation mechanism is movably arranged on the launching field of the inland river region and can move towards the direction close to or far from the stopping platform, and the launching transportation mechanism is used for transporting the steel box girders transported from the water transportation mechanism into water in a designated region; the driving structure is in transmission connection with the launching transportation mechanism and is used for driving the launching transportation mechanism to move. The device and the method utilize the steel box girder to manufacture the whole body, adopt the sealing molding and then drain, simulate the floating transportation of the ship in the river channel, and solve the problem of difficult whole transportation of the river channel in the large steel box girder.
Description
Technical Field
The application relates to the field of steel structures, in particular to a steel box girder integral launching device and a steel box girder integral launching transportation method.
Background
When the bridge spans an inner river, in order to ensure the normal navigation of the river and the integrity of the river slope protection, a steel box girder is required to be installed by using an integral lifting method when a bracket method and a pushing and sliding method cannot be adopted for construction, and the transportation and positioning of the steel box girder are very difficult.
The traditional construction method comprises the following steps: the fixed-pole crane vessel works on water, and the components are directly lifted in place from the barge. In the construction process, the steel box girder is adjusted and segmented according to the actual size condition of the component, the related condition of the parameter of the hoisting equipment, the load of the ship to be connected and the like, and then the steel box girder is implemented. The method is time-consuming and labor-consuming, is extremely difficult to operate, and has higher cost and lower working efficiency.
Under such circumstances, therefore, it is desirable to devise an economically sound method of transporting steel box girders from an assembly site to a lifting location.
Disclosure of Invention
One of the purposes of the application is to provide a steel box girder integral launching device and a steel box girder integral launching transportation method, so as to solve the problem that the existing steel box girder is difficult to integrally lift and transport in a river channel.
The technical scheme of the application is as follows:
the integral steel box girder launching device comprises a water transport mechanism, a stopping platform, a launching transport mechanism and a driving structure; the water transport mechanism is loaded with a steel box girder welded into a whole and is movably arranged on the stopping platform on the water field of the inland river region; the launching transportation mechanism is movably arranged on a river-area launching site and can move towards a direction approaching or separating from the stopping platform, and the launching transportation mechanism is used for transporting the steel box girders transported from the water transportation mechanism into water in a designated area; the driving structure is in transmission connection with the launching transportation mechanism and is used for driving the launching transportation mechanism to move.
As a technical scheme of the application, the water transport mechanism comprises a first bracket, a first supporting platform and a slipway trolley; the first supporting platform is arranged on the slipway trolley; the first bracket is mounted on the first support platform; the steel box girder is placed on the first bracket.
As a technical scheme of the application, the first bracket comprises a first base and a first arc-shaped supporting plate; the first base is mounted on the first supporting platform; the first arc-shaped supporting plate is matched with the steel box girder and is arranged on the first base; the steel box girder is placed on the first arc-shaped supporting plate.
As a technical scheme of the application, the launching transport mechanism comprises a second bracket, a second supporting platform, a plurality of first hydraulic jacks and an inclined ship frame; a plurality of first hydraulic jacks are installed on the top of the inclined ship frame at intervals; the second support platform is arranged on a plurality of first hydraulic jacks, and the first hydraulic jacks are used for driving the second support platform to lift; the second bracket is mounted on the second support platform.
As a technical scheme of the application, the second bracket comprises a second base and a second arc-shaped supporting plate; the second base is arranged on the second supporting platform; the second arc-shaped supporting plate is matched with the steel box girder and is arranged on the second base.
As a technical scheme of this application, still install two rows of supporting seats on the oblique creel, every all install the second hydraulic jack on the supporting seat, two rows the second hydraulic jack is in respectively the relative both sides department of second supporting platform, and every the drive end of second hydraulic jack all the transmission connect in the lateral wall of second supporting platform.
As a technical scheme of the application, a first connecting stiffness plate is welded on the second hydraulic jack, a turnbuckle is arranged on the first connecting stiffness plate, and the turnbuckle is connected to one end of a steel wire rope; the other end of the steel wire rope is connected with a second connecting stiffness plate welded on the steel box girder.
As a technical scheme of the application, a plurality of horizontal measuring instruments are arranged on the top of the steel box girder.
As a technical scheme of this application, the drive structure includes the hoist engine, the hoist engine through many wire ropes with the transmission of launching transportation mechanism is connected for the drive launching transportation mechanism is towards being close to or keep away from the direction of berthing the platform.
The whole steel box girder launching transportation method comprises the steps of carrying out launching transportation through a whole steel box girder launching device; the method comprises the following steps:
s1, transporting the steel box girders to a site in sections for secondary assembly, and installing and welding a plurality of steel box girders into a whole on a secondary assembly jig; driving a slipway trolley in the water transport mechanism to the lower part of the secondarily assembled steel box girder, lifting the slipway trolley, jacking up the steel box girder, separating from the jig frame, and transferring the steel box girder to the slipway trolley; the steel box girder is integrally transported to the berthing platform of the inland river area launching site through the slipway trolley;
s2, pulling a steel wire rope connected with an inclined ship frame in the launching transportation mechanism through a winch to move the inclined ship frame up to the position right below the steel box girder;
s3, lifting a first hydraulic jack on the launching transportation mechanism until the steel box girder is lifted from a slipway trolley to a second bracket on the oblique ship frame, pulling away the slipway trolley, setting a plurality of horizontal measuring instruments on the top of the steel box girder for real-time observation, and carrying out horizontal fine adjustment through a second hydraulic jack on the oblique ship frame until the steel box girder is horizontal if the steel box girder is deviated; welding a first connecting stiffness plate on the second hydraulic jack, welding a second connecting stiffness plate on the steel box girder, installing a turnbuckle and a steel wire rope between the first connecting stiffness plate and the second connecting stiffness plate, and binding the steel wire rope on the steel box girder;
and S4, the inclined ship frame is moved downwards, and the posture of the steel box girder in water is adjusted through the first hydraulic jack until the steel box girder floats and is separated from the second bracket.
The beneficial effects of this application:
in the steel box girder integral launching device and the steel box girder integral launching transportation method, the steel box girder is manufactured into integral launching after sealed forming, so that floating transportation of ships in the inland river is simulated, and the problem of difficult integral transportation of the inland river of the large steel box girder is solved. Meanwhile, the hydraulic jack is adopted on the inclined ship frame to carry out horizontal and lateral adjustment, so that the problem that the steel box girder needs to be adjusted and balanced for multiple times to avoid overturning due to the influence of buoyancy after the whole steel box girder is launched is solved. In addition, the method solves the problem that the transportation of the traditional large steel box girder river channel is affected by the equipment and needs to be segmented for repeated assembly after being segmented for many times by using a series of equipment and devices such as a slipway trolley, an oblique slipway frame and the like, reduces the construction of the segmented weld joints of the steel box girder, greatly improves the construction efficiency and greatly improves the overall quality of the steel box girder.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a first state of a steel box girder integral launching device provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a second state of the whole steel box girder launching device according to the embodiment of the present application;
fig. 3 is a top view of a steel box girder transported by a slipway trolley provided in an embodiment of the present application;
fig. 4 is a top view of a steel box girder for transferring a ship frame in an embodiment of the present application;
fig. 5 is a schematic view of a bow stand according to an embodiment of the present disclosure;
fig. 6 is a schematic view of a binding state of a steel box girder according to an embodiment of the present application;
fig. 7 is a schematic view of a launch state of a steel box girder for a ship frame cargo transportation according to an embodiment of the present application.
Icon: 1-a first bracket; 2-a first support platform; 3-a slipway trolley; 4-steel box girders; 5-a second bracket; 6-a second support platform; 7-a first hydraulic jack; 8-a canted cradle; 9-a supporting seat; 10-a second hydraulic jack; 11-a first connection stiffness plate; 12-turnbuckle; 13-a steel wire rope; 14-a second connecting stiffness plate; 15-a level gauge; 16-a winch; 17-dock platform.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application.
Furthermore, in this application, unless expressly stated or limited otherwise, a first feature may include first and second features being in direct contact, either above or below, or through additional features being in contact therewith. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Examples:
referring to fig. 1, and referring to fig. 2 to 7 in combination, the present application provides an integral launching device for a steel box girder 4, which mainly includes a water transport mechanism, a docking platform 17 launching transport mechanism and a driving structure; the water transport mechanism is loaded with a steel box girder 4 welded into a whole and is movably arranged on a stopping platform 17 on a river-area launching site; meanwhile, the launching transportation mechanism is movably arranged on the launching field of the inland river region and can move towards the direction approaching or separating from the stopping platform 17, and is used for transporting the steel box girder 4 transported from the water transportation mechanism into the water in the designated region; in addition, the driving structure is in transmission connection with the launching transportation mechanism and is used for driving the launching transportation mechanism to move.
Further, the water transport mechanism comprises a first bracket 1, a first supporting platform 2 and a slipway trolley 3; wherein the first support platform 2 is arranged on the slipway trolley 3; the first bracket 1 is mounted on the first support platform 2, and the first bracket 1 comprises a first base and a first arc-shaped support plate, wherein the first base is mounted on the first support platform 2, and the first arc-shaped support plate is matched with the steel box girder 4 and is mounted on the first base; the steel box girder 4 is placed on the first arc-shaped supporting plate, and the first arc-shaped supporting plate is of an arc-shaped structure matched with the steel box girder 4 welded into a whole, and the steel box girder 4 is uniformly supported by the arc-shaped supporting plate, so that the deformation of the bottom plate of the steel box girder 4 is prevented.
The launching transportation mechanism comprises a second bracket 5, a second supporting platform 6, a plurality of first hydraulic jacks 7 and a ship frame 8; the oblique ship frame 8 is used for supporting the steel box girder 4 and moving the steel box girder 4 up and down along the embankment; a plurality of first hydraulic jacks 7 are installed on the top of the inclined cradle 8 at intervals, and function to lift and adjust the height of the second bracket 5; meanwhile, the second support platform 6 is arranged on a plurality of first hydraulic jacks 7, and the first hydraulic jacks 7 are used for driving the second support platform 6 to lift; in addition, the second bracket 5 is mounted on the second support platform 6, and the second bracket 5 includes a second base and a second arc-shaped support plate; the second base is arranged on the second supporting platform 6; the second arc-shaped supporting plate is matched with the steel box girder 4 and is arranged on the second base, the second arc-shaped supporting plate is of an arc-shaped structure matched with the steel box girder 4 welded into a whole, and the second arc-shaped supporting plate is used for uniformly supporting the steel box girder 4 and preventing the bottom plate of the steel box girder 4 from deforming.
In addition, two rows of supporting seats 9 are further installed on the oblique ship frame 8, second hydraulic jacks 10 are installed on each supporting seat 9, the two rows of second hydraulic jacks 10 are respectively located at two opposite sides of the second supporting platform 6, the driving end of each second hydraulic jack 10 is in transmission connection with the side wall of the second supporting platform 6, and the second hydraulic jacks 10 are used for adjusting the position of the steel box girder 4 from the side direction. The second hydraulic jack 10 is welded with a first connecting stiffness plate 11, a turnbuckle 12 is arranged on the first connecting stiffness plate 11, and the turnbuckle 12 is connected with one end of a steel wire rope 13; the other end of the wire rope 13 is connected to a second connecting stiffness plate 14 welded on the steel box girder 4. Meanwhile, a plurality of horizontal measuring instruments 15 are arranged on the top of the steel box girder 4 for real-time observation, and if the steel box girder 4 is deviated, the horizontal fine adjustment is performed through the second hydraulic jack 10 on the inclined ship frame 8 until the steel box girder 4 is horizontal.
Further, the driving structure may employ a winch 16, and the winch 16 is in transmission connection with the inclined cradle 8 through a plurality of wire ropes 13, for driving the inclined cradle 8 to move toward or away from the docking platform 17.
In addition, in the embodiment, the whole steel box girder 4 launching transportation method is also provided, and the whole steel box girder 4 launching device is used for launching transportation; the method mainly comprises the following steps:
s1, transporting the steel box girders 4 to a site in sections for secondary assembly, and installing and welding a plurality of steel box girders 4 into a whole on a secondary assembly jig; the shipway trolley 3 in the water transport mechanism is driven to the lower part of the secondarily assembled steel box girder 4, the shipway trolley 3 is lifted, the steel box girder 4 is jacked up and separated from the jig frame, and the steel box girder 4 is transported to the shipway trolley 3; the steel box girder 4 is integrally transported to a stopping platform 17 of a inland river area launching site through a slipway trolley 3;
s2, pulling a steel wire rope 13 connected with the inclined ship frame 8 in the launching transportation mechanism through a winch 16 to move the inclined ship frame 8 up to the position right below the steel box girder 4;
s3, lifting a first hydraulic jack 7 on the launching transportation mechanism until the steel box girder 4 is lifted from the slipway trolley 3 to a second bracket 5 on the inclined ship frame 8, withdrawing the slipway trolley 3, arranging a plurality of horizontal measuring instruments 15 on the top of the steel box girder 4 for real-time observation, and performing horizontal fine adjustment through a second hydraulic jack 10 on the inclined ship frame 8 until the steel box girder 4 is horizontal if the steel box girder 4 is deviated; welding a first connecting stiffness plate 11 on a second hydraulic jack 10, welding a second connecting stiffness plate 14 on a steel box girder 4, installing a turnbuckle 12 and a steel wire rope 13 between the first connecting stiffness plate 11 and the second connecting stiffness plate 14, and binding the steel wire rope 13 on the steel box girder 4;
s4, the inclined ship frame 8 is moved downwards, the posture of the steel box girder 4 in water is adjusted through a first hydraulic jack, and when the steel box girder 4 is sunk in water, the steel box girder is moved downwards according to a theoretical formula F Floating device ＝ρ Liquid and its preparation method gV Row of rows When the calculation reaches a preset waterline, the hollow steel box girder 4 slowly floats; at the moment, the operation progress is suspended, a professional enters the steel box girder 4 to check whether water leakage exists, the lifting lugs are not tightly bound and the like, and subsequent construction is performed after the inspection is qualified.
In summary, in the steel box girder 4 integral launching device and the steel box girder 4 integral launching transportation method, the steel box girder 4 is manufactured into integral launching after being sealed and molded, so that floating transportation of a ship in a river is simulated, and the problem that the integral transportation of the river in the large steel box girder 4 is difficult is solved. Meanwhile, the hydraulic jack is adopted on the inclined ship frame 8 to carry out horizontal and lateral adjustment, so that the problem that the steel box girder 4 needs to be adjusted and balanced for a plurality of times to avoid overturning due to the influence of buoyancy after the whole steel box girder is launched is solved. In addition, a series of equipment and devices such as the slipway trolley 3 and the inclined slipway frame 8 are utilized, the problem that the conventional large steel box girder 4 is repeatedly assembled after being transported for a plurality of times under the influence of equipment is solved, the construction of high-altitude segmented welding seams of the steel box girder 4 is reduced, the construction efficiency is greatly improved, and the overall quality of the steel box girder 4 is greatly improved.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. The integral steel box girder launching device is characterized by comprising a water transport mechanism, a stopping platform, a launching transport mechanism and a driving structure; the water transport mechanism is loaded with a steel box girder welded into a whole and is movably arranged on the stopping platform on the water field of the inland river region; the launching transportation mechanism is movably arranged on a river-area launching site and can move towards a direction approaching or separating from the stopping platform, and the launching transportation mechanism is used for transporting the steel box girders transported from the water transportation mechanism into water in a designated area; the driving structure is in transmission connection with the launching transportation mechanism and is used for driving the launching transportation mechanism to move.
2. The steel box girder integral launching device of claim 1, wherein the water transport mechanism comprises a first bracket, a first support platform, and a slipway trolley; the first supporting platform is arranged on the slipway trolley; the first bracket is mounted on the first support platform; the steel box girder is placed on the first bracket.
3. The steel box girder integral launching device of claim 2, wherein the first bracket comprises a first base and a first arc-shaped support plate; the first base is mounted on the first supporting platform; the first arc-shaped supporting plate is matched with the steel box girder and is arranged on the first base; the steel box girder is placed on the first arc-shaped supporting plate.
4. The steel box girder integral launching device of claim 1, wherein the launching transport comprises a second bracket, a second support platform, a plurality of first hydraulic jacks and a diagonal cradle; a plurality of first hydraulic jacks are installed on the top of the inclined ship frame at intervals; the second support platform is arranged on a plurality of first hydraulic jacks, and the first hydraulic jacks are used for driving the second support platform to lift; the second bracket is mounted on the second support platform.
5. The steel box girder integral launching device of claim 4, wherein the second bracket comprises a second base and a second arc-shaped support plate; the second base is arranged on the second supporting platform; the second arc-shaped supporting plate is matched with the steel box girder and is arranged on the second base.
6. The steel box girder integral launching device of claim 4, wherein two rows of supporting seats are further installed on the inclined ship frame, second hydraulic jacks are installed on each supporting seat, the two rows of second hydraulic jacks are respectively located at two opposite sides of the second supporting platform, and driving ends of each second hydraulic jack are in transmission connection with the side wall of the second supporting platform.
7. The steel box girder integral launching device according to claim 6, wherein a first connecting stiffness plate is welded on the second hydraulic jack, a turnbuckle is installed on the first connecting stiffness plate, and the turnbuckle is connected to one end of a steel wire rope; the other end of the steel wire rope is connected with a second connecting stiffness plate welded on the steel box girder.
8. The steel box girder integrated drainage device according to claim 1, wherein a plurality of level gauges are provided on the top of the steel box girder.
9. The steel box girder integral launching device according to claim 1, wherein the driving structure comprises a winch, and the winch is in transmission connection with the launching transportation mechanism through a plurality of steel wires and is used for driving the launching transportation mechanism to move towards or away from the landing platform.
10. A steel box girder integral launching transportation method by the steel box girder integral launching device of any one of claims 1 to 9; the method is characterized by comprising the following steps of:
s1, transporting the steel box girders to a site in sections for secondary assembly, and installing and welding a plurality of steel box girders into a whole on a secondary assembly jig; driving a slipway trolley in the water transport mechanism to the lower part of the secondarily assembled steel box girder, lifting the slipway trolley, jacking up the steel box girder, separating from the jig frame, and transferring the steel box girder to the slipway trolley; the steel box girder is integrally transported to the berthing platform of the inland river area launching site through the slipway trolley;
s2, pulling a steel wire rope connected with an inclined ship frame in the launching transportation mechanism through a winch to move the inclined ship frame up to the position right below the steel box girder;
s3, lifting a first hydraulic jack on the launching transportation mechanism until the steel box girder is lifted from a slipway trolley to a second bracket on the oblique ship frame, pulling away the slipway trolley, setting a plurality of horizontal measuring instruments on the top of the steel box girder for real-time observation, and carrying out horizontal fine adjustment through a second hydraulic jack on the oblique ship frame until the steel box girder is horizontal if the steel box girder is deviated; welding a first connecting stiffness plate on the second hydraulic jack, welding a second connecting stiffness plate on the steel box girder, installing a turnbuckle and a steel wire rope between the first connecting stiffness plate and the second connecting stiffness plate, and binding the steel wire rope on the steel box girder;
and S4, the inclined ship frame is moved downwards, and the posture of the steel box girder in water is adjusted through the first hydraulic jack until the steel box girder floats and is separated from the second bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311721468.5A CN117702639A (en) | 2023-12-14 | 2023-12-14 | Steel box girder integral launching device and steel box girder integral launching transportation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311721468.5A CN117702639A (en) | 2023-12-14 | 2023-12-14 | Steel box girder integral launching device and steel box girder integral launching transportation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117702639A true CN117702639A (en) | 2024-03-15 |
Family
ID=90156367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311721468.5A Pending CN117702639A (en) | 2023-12-14 | 2023-12-14 | Steel box girder integral launching device and steel box girder integral launching transportation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117702639A (en) |
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2023
- 2023-12-14 CN CN202311721468.5A patent/CN117702639A/en active Pending
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