CN107117522A - Steel box-girder Lift-on/Lift-off System and hanging method - Google Patents
Steel box-girder Lift-on/Lift-off System and hanging method Download PDFInfo
- Publication number
- CN107117522A CN107117522A CN201710470199.8A CN201710470199A CN107117522A CN 107117522 A CN107117522 A CN 107117522A CN 201710470199 A CN201710470199 A CN 201710470199A CN 107117522 A CN107117522 A CN 107117522A
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- Prior art keywords
- lift
- girder
- ship
- steel box
- lifting rope
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses steel box-girder Lift-on/Lift-off System and hanging method, steel box-girder Lift-on/Lift-off System, including cable control system, alignment system and tackling system, the cable control system includes main push-towing rope, it is arranged on 4 angle pulleies on main push-towing rope, it is arranged on 4 hoist engines on anchor road, 4 additional transport ships and 4 day lifting ropes, the day lifting rope is arranged on angle pulley, described day lifting rope one end is connected with the hoist engine on anchor road, one angle pulley is correspondingly arranged a day lifting rope and an additional transport ship, 4 angle pulleies are symmetrically distributed in the both sides of steel box-girder construction section, alignment system includes fortune beam ship and day lifting rope, the hoist engine for folding and unfolding day lifting rope is provided with fortune beam ship, tackling system includes 4 suspenders, described suspender one end is connected with main push-towing rope, the other end is used to be connected with the hanger on steel box-girder.The present invention is by setting 4 day lifting ropes, and day lifting rope is realized by angle pulley and turned to, and the position for transporting beam ship is finely adjusted and reaches precise positioning.
Description
Technical field
The present invention relates to offshore sea waters bridge construction technical field, and in particular to steel box-girder Lift-on/Lift-off System and hanging method.
Background technology
In order to have a good transport service, it will usually constructed a bridge across the region in river, marine site, to shorten one's route.
When being built bridge in the larger river of span or offshore sea waters, due to across it is in larger distance, to be built
The length of bridge is also corresponding larger (large bridge), when installing steel box-girder, it is necessary to after steel box-girder to be transported to specified location
The installation site for be lifted into bridge is installed.
At present, in the transport and hoisting technology of existing steel box-girder, it is easily caused positioning of steel box girder and is forbidden, especially in wind
The larger offshore sea waters of power, positioning of steel box girder will definitely not increase the difficulty of subsequent installation, reduce operating efficiency.
The content of the invention
It is an object of the invention to provide steel box-girder Lift-on/Lift-off System, the problem of prior art positioning of steel box girder is inaccurate is solved.
Moreover, it relates to a kind of hanging method based on above-mentioned Lift-on/Lift-off System.
The present invention is achieved through the following technical solutions：
Steel box-girder Lift-on/Lift-off System, including cable control system, alignment system and tackling system, the cable control system bag
4 angle pulleies for include main push-towing rope, being arranged on main push-towing rope, 4 hoist engines being arranged on anchor road, 4 additional transport ships and 4 days
Lifting rope, the day lifting rope is arranged on angle pulley, and described day lifting rope one end is connected with the hoist engine on anchor road, and one turns to cunning
Wheel is correspondingly arranged a day lifting rope and an additional transport ship, and 4 angle pulleies are symmetrically distributed in the both sides of steel box-girder construction section,
The alignment system includes being provided with the hoist engine for folding and unfolding day lifting rope on fortune beam ship and day lifting rope, the fortune beam ship, described
Tackling system includes 4 suspenders, and described suspender one end is connected with main push-towing rope, and the other end is used to be connected with the hanger on steel box-girder.
In the mounting technique of existing steel box-girder, without precise positioning, directly steel box-girder is transported to installation site
Underface and then lifting, such mode are inaccurate due to positioning, it is not easy to which steel box-girder is lifted into specified location.
Main push-towing rope of the present invention refers to be arranged on the cable above bridge both sides, and position is fixed, by the anchor point of day lifting rope
(position of intersecting point of day lifting rope extended line and main push-towing rope is anchor point) is arranged on main push-towing rope, it is possible to increase the cable being made up of day lifting rope
The stability of system, main purpose is the transverse shifting for overcoming ship；Preferably, on day lifting rope and additional transport ship horizontal direction
Capable angle is less than 45 degree；The angle pulley plays steering-effecting during day lifting rope folding and unfolding, and the anchor road is with steel case
It is divided into centered on beam construction section on left and right road, left and right road and is symmetrically arranged with 2 hoist engines, be i.e. the two of main push-towing rope cable is matched somebody with somebody respectively
Conjunction is provided with 2 hoist engines, and 2 hoist engines are symmetrical set with steel box-girder construction section.
The present invention is by setting 4 day lifting ropes, and the day lifting rope is realized by angle pulley and turned to, and passes through the volume on anchor road
Raise machine and carry out folding and unfolding, realized and transported by additional transport ship, 4 day lifting ropes and the hoist engine collective effect on fortune beam ship, to fortune
The position of beam ship, which is finely adjusted, reaches precise positioning, by fortune beam ship precise positioning in the underface of steel box-girder installation site, in this way,
The present invention solves the problem of prior art positioning of steel box girder is inaccurate.
Further, the cable clamp for fixing day lifting rope is provided with main push-towing rope.
The cable clamp specifically refers to a kind of fixing device, can be similar yoke configurations, when steel cable folding and unfolding is finished in positioning
Before, steel cable is anchored on main push-towing rope with cable clamp.
Further, the distance at the hoist engine on anchor road and steel box-girder construction section center is 150-160m.
Above-mentioned distance is set according to bridge depth of beam, can be by day lifting rope and the folder of the horizontal direction of additional transport ship
Angle is controlled within 45 degree, improves the stability of additional transport Ship Transportation day lifting rope, while it is precisely fixed to improve fortune beam ship
The accurate effect of position.
Further, the hoist engine on anchor road is that the hoist engine on 2T hoist engines, the fortune beam ship is 5T hoist engines.
Further, day lifting rope isSteel cable, length is 200-250m.
It is describedSpecifically refer to a diameter of 17.5mm.
Further, suspender is steel chain, and the steel chain is connected with electric block.
Further, stable rope is provided with fortune beam ship, the bottom of the steel box-girder is provided with and consolidating that stable rope is connected
Determine part.
Steel box-girder is lifted by crane after the completion of being connected with suspension centre, is connected steel box-girder with fortune beam boat supporting frame with stable rope before lifting
Connect, it is slow during lifting to put stable rope, prevent steel box-girder from all around swinging back and forth.
Further, fortune beam ship uses flat expanded letter barge with deck, using twin shaft, Twin Rudders, high-power engine.
The precise positioning of fortune beam ship is realized, the self-condition for transporting beam ship is particularly important, Ship Design both requires to consider ship
The use function of oceangoing ship, while requiring to consider the factor, motion feature of the ship in ocean such as Ship Structure, stability, handling
It is different and different with different waters and use requirement with posture control method.This ship is not only set in design according to ship
The code requirement and program of meter are carried out, and take into account the requirement of steel box-girder transport and dynamic positioning.Employ first flat
Expanded letter barge with deck, make it have higher stability and resistance to stormy waves；Next employs twin shaft, Twin Rudders, high-power engine,
Make it have preferably handling；Vessel has the equipment and system needed for positioning and control.
A kind of hanging method of steel box-girder, comprises the following steps：
1), lifting prepares：Additional transport ship is moved to the underface of angle pulley, and day is transferred by the hoist engine on anchor road
Lifting rope, makes day lifting rope be connected with additional transport ship；
2), positioned at the beginning of fortune beam ship：Fortune beam ship is moved to immediately below suspender, and additional transport ship drives towards fortune beam ship, by day lifting rope
It is fixed on the hoist engine on fortune beam ship；
3) beam ship fine positioning, is transported：The precise positioning of fortune beam ship is realized by transporting the hoist engine folding and unfolding on beam ship day lifting rope；
4), lift by crane：Suspender is connected with steel box-girder, pulls suspender to rise, steel box-girder is reached specified location；
5), finish up：Day lifting rope is removed from fortune beam ship, the underface of angle pulley is gone back to by additional transport shipping, it is stand-by,
Meanwhile, fortune beam ship is quickly sailed out of.
Specifically, fortune beam ship is before operation interval is entered, and day hangs steel cable and transfers to tender by the hoist engine on cat road
On, tender is awaited orders in localization region, and when fortune beam ship is reached behind positioning interval, day is quickly hung steel cable and is transformed into fortune by tender
It is connected on beam ship with the steel cable on positioning hoist engine, after just positioning, according to spreader position, 5T positions elevator on folding and unfolding fortune beam ship
Machine, is positioned, and while beam ship positionning is transported, is reeled suspender with electric block, is met the accurate connection of suspender hanger, owns
After the completion of connection, whether observation suspender suspension centre meets hanging beam condition, is lifted by crane if meeting, is unsatisfactory for re-starting positioning.
Further, during positioning at the beginning of fortune beam ship, it will first determine at the beginning of suspender lower section to certain position as fortune beam ship
The object of reference of position.
The present invention compared with prior art, has the following advantages and advantages：
The present invention is by setting 4 day lifting ropes, and the day lifting rope is realized by angle pulley and turned to, and passes through the volume on anchor road
Raise machine and carry out folding and unfolding, realized and transported by additional transport ship, 4 day lifting ropes and the hoist engine collective effect on fortune beam ship, to fortune
The position of beam ship, which is finely adjusted, reaches precise positioning, by fortune beam ship precise positioning in the underface of steel box-girder installation site, in this way,
The present invention solves the problem of prior art positioning of steel box girder is inaccurate.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation that additional transport ship prepares transport day lifting rope；
Fig. 2 is that positioning at the beginning of transporting beam ship and tender transport the structural representation that day hangs steel cable；
Fig. 3 is to transport the structural representation that beam ship is accurately positioned and suspender is connected with steel box-girder；
Fig. 4 is the structural representation for lifting by crane box beam and folding and unfolding day lifting rope.
Mark and corresponding parts title in accompanying drawing：
1- anchors road, 2- hoist engines, 3- days lifting ropes, 4- main push-towing ropes, 5- angle pulleies, 6- suspenders, 7- additional transport ships, 8- fortune beams
Ship, 9- steel box-girders, 10- is stable to restrict, 11- hangers.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1：
As shown in Figures 1 to 4, shown accompanying drawing is the view from the visual angle of a side of main push-towing rope 4, steel box-girder lifting system
System, including cable control system, alignment system and tackling system, the cable control system include main push-towing rope 4, are arranged on main push-towing rope 4
On 4 angle pulleies 5,4 hoist engines 2 being arranged on anchor road 1, the hoist engine 2 is from 2T hoist engines, 4 additional transports
Ship 7 and 4 day lifting ropes 3, the day lifting rope 3 isSteel cable, length is 200-250m, the day lifting rope 3 be arranged on turn
To on pulley 5, described one end of day lifting rope 3 is connected with the hoist engine 2 on anchor road 1, and an angle pulley 5 is correspondingly arranged a day and hung
Rope 3 and 7,4 angle pulleies 5 of an additional transport ship are symmetrically distributed in the both sides of the construction section of steel box-girder 9, the alignment system bag
The hoist engine 2 being provided with fortune beam ship 8 and day lifting rope 3, the fortune beam ship 8 for folding and unfolding day lifting rope 3 is included, the hoist engine 2 is selected
5T hoist engines, the tackling system includes 4 suspenders 6, and the suspender 6 is steel chain, and the steel chain is connected with electric block, described
The one end of suspender 6 is connected with main push-towing rope 4, and the other end is used to be connected with the hanger 11 on steel box-girder 9.
Embodiment 2：
As shown in Figures 1 to 4, the present embodiment is based on being provided with for fixing day lifting rope 3 on embodiment 1, the main push-towing rope 4
The distance of hoist engine 2 and the construction section center of steel box-girder 9 on cable clamp, the anchor road 1 is 150-160m；Set on the fortune beam ship 8
Stable rope 10 is equipped with, the bottom of the steel box-girder 9 is provided with the fixture being connected with stable rope 10；The fortune beam ship 8 is using flat
Flat expanded letter barge with deck, using twin shaft, Twin Rudders, high-power engine.
A kind of hanging method of the Lift-on/Lift-off System as described in embodiment 1 or embodiment 2, comprises the following steps：
1), lifting prepares：Additional transport ship 7 is moved to the underface of angle pulley 5, by under the hoist engine 2 on anchor road 1
Day lifting rope 3 is put, day lifting rope 3 is connected with additional transport ship 7；
2), fortune beam ship 8 is just positioned：Using the lower section of suspender 6 to certain position as the object of reference of fortune beam ship 8 just positioning, beam is transported
Ship 8 is moved to immediately below suspender 6, and additional transport ship 7 drives towards fortune beam ship 8, and day lifting rope 3 is fixed on into the hoist engine 2 on fortune beam ship 8
On；
3), the fine positioning of fortune beam ship 8：The precisely fixed of fortune beam ship 8 is realized by transporting the folding and unfolding of hoist engine 2 on beam ship 8 day lifting rope 3
Position；
4), lift by crane：Suspender 6 is connected with steel box-girder 9, pulls suspender 6 to rise, steel box-girder 9 is reached specified location；
5), finish up：Day lifting rope 3 is removed from fortune beam ship 8, the underface of angle pulley 5 is transported back by additional transport ship 7,
It is stand-by, meanwhile, fortune beam ship 8 is quickly sailed out of.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (10)
1. steel box-girder Lift-on/Lift-off System, it is characterised in that including cable control system, alignment system and tackling system, the cable
Control system includes main push-towing rope (4), 4 angle pulleies (5) being arranged on main push-towing rope (4), 4 elevators being arranged on anchor road (1)
Machine (2), 4 additional transport ships (7) and 4 day lifting ropes (3), the day lifting rope (3) are arranged on angle pulley (5), the day
Lifting rope (3) one end is connected with the hoist engine (2) on anchor road (1), an angle pulley (5) be correspondingly arranged a day lifting rope (3) and
One additional transport ship (7), 4 angle pulleies (5) are symmetrically distributed in the both sides of steel box-girder (9) construction section, the alignment system
Including fortune beam ship (8) and day lifting rope (3), the hoist engine (2) for folding and unfolding day lifting rope (3), institute are provided with the fortune beam ship (8)
Stating tackling system includes 4 suspenders (6), and described suspender (6) one end is connected with main push-towing rope (4), and the other end is used for and steel box-girder (9)
Hanger (11) connection.
2. steel box-girder Lift-on/Lift-off System according to claim 1, it is characterised in that be provided with the main push-towing rope (4) for solid
Determine the cable clamp of day lifting rope (3).
3. steel box-girder Lift-on/Lift-off System according to claim 1, it is characterised in that hoist engine (2) on the anchor road (1) with
The distance at steel box-girder (9) construction section center is 150-160m.
4. steel box-girder Lift-on/Lift-off System according to claim 1, it is characterised in that the hoist engine (2) on the anchor road (1) is
Hoist engine (2) on 2T hoist engines, the fortune beam ship (8) is 5T hoist engines.
5. steel box-girder Lift-on/Lift-off System according to claim 1, it is characterised in that the day lifting rope (3) isSteel
Rope, length is 200-250m.
6. steel box-girder Lift-on/Lift-off System according to claim 1, it is characterised in that the suspender (6) is steel chain, the steel chain
It is connected with electric block.
7. steel box-girder Lift-on/Lift-off System according to claim 1, it is characterised in that stabilization is provided with the fortune beam ship (8)
Restrict (10), the bottom of the steel box-girder (9) is provided with the fixture being connected with stable rope (10).
8. steel box-girder Lift-on/Lift-off System according to claim 1, it is characterised in that the fortune beam ship (8) uses flat width
Body barge with deck, using twin shaft, Twin Rudders, high-power engine.
9. a kind of hanging method of the Lift-on/Lift-off System as described in claim any one of 1-8, it is characterised in that comprise the following steps：
1), lifting prepares：Additional transport ship (7) is moved to the underface of angle pulley (5), passes through the hoist engine on anchor road (1)
(2) decentralization day lifting rope (3), makes a day lifting rope (3) be connected with additional transport ship (7)；
2), fortune beam ship (8) is just positioned：Fortune beam ship (8) is moved to immediately below suspender (6), and additional transport ship (7) drives towards fortune beam ship
(8), day lifting rope (3) is fixed on the hoist engine (2) on fortune beam ship (8)；
3) beam ship (8) fine positioning, is transported：Fortune beam ship (8) is realized by transporting hoist engine (2) folding and unfolding on beam ship (8) day lifting rope (3)
Precise positioning；
4), lift by crane：Suspender (6) is connected with steel box-girder (9), pulls suspender (6) to rise, steel box-girder (9) is reached specified location；
5), finish up：Day lifting rope (3) is removed from fortune beam ship (8), by additional transport ship (7) transport back angle pulley (5) just under
Side, it is stand-by, meanwhile, fortune beam ship (8) is quickly sailed out of.
10. hanging method according to claim 9, it is characterised in that during fortune beam ship (8) is just positioned, first will
The object of reference just positioned as fortune beam ship (8) to certain position below suspender (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470199.8A CN107117522A (en) | 2017-06-20 | 2017-06-20 | Steel box-girder Lift-on/Lift-off System and hanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470199.8A CN107117522A (en) | 2017-06-20 | 2017-06-20 | Steel box-girder Lift-on/Lift-off System and hanging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107117522A true CN107117522A (en) | 2017-09-01 |
Family
ID=59718331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710470199.8A Pending CN107117522A (en) | 2017-06-20 | 2017-06-20 | Steel box-girder Lift-on/Lift-off System and hanging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107117522A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396930A (en) * | 2019-07-16 | 2019-11-01 | 中交二公局第二工程有限公司 | A kind of suspension bridge fortune beam ship positionning device and positioning construction method |
| CN114772465A (en) * | 2022-04-27 | 2022-07-22 | 广西路建工程集团有限公司 | Floating carrier movement control method based on steel trestle rail traction of Beidou system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396930A (en) * | 2019-07-16 | 2019-11-01 | 中交二公局第二工程有限公司 | A kind of suspension bridge fortune beam ship positionning device and positioning construction method |
| CN114772465A (en) * | 2022-04-27 | 2022-07-22 | 广西路建工程集团有限公司 | Floating carrier movement control method based on steel trestle rail traction of Beidou system |
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Application publication date: 20170901 |