CN106087769A - A kind of steel bowstring arch bridge entirety crane barge erection construction method - Google Patents
A kind of steel bowstring arch bridge entirety crane barge erection construction method Download PDFInfo
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- CN106087769A CN106087769A CN201610663521.4A CN201610663521A CN106087769A CN 106087769 A CN106087769 A CN 106087769A CN 201610663521 A CN201610663521 A CN 201610663521A CN 106087769 A CN106087769 A CN 106087769A
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- ship
- crane barge
- earth anchor
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- wire rope
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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
Abstract
The present invention relates to a kind of steel bowstring arch bridge entirety crane barge erection construction method, belong to technical field of bridge construction.It uses at bank side integral assembling, and later stage integral erection is constructed, and uses two table flotations to hang ship and carries out overall crane barge erection construction, comprises the steps: that the earth anchor of crane barge ship is arranged；The overall examination of crane barge ship is hung；The synchronization of crane barge ship retreats；Crane barge ship synchronous rotary 90 °；Crane barge ship moves in place to bridge location direction；At artificial bridge location, precision adjusts, fall bridge.The present invention is by overall crane barge erection construction, it is achieved that the shortest take the navigation channel time and completes integral erection construction, and its construction safety risk is little, takies the navigation channel time short, substantially increases integral erection efficiency, shortens and takies the navigation channel time.The present invention is best suitable for, across having the erection construction that navigation requires the steel structural form bridge in river course, having the strongest suitability and superiority for China railways, highway, municipal administration etc. across the steel structure bridge engineering construction of navigable river.
Description
Technical field
The present invention relates to a kind of steel bowstring arch bridge entirety crane barge erection construction method, belong to technical field of bridge construction.
Background technology
Lu east, Danyang City bridge is the bridge block on Jinghang Canal, overall length of bridge 294.77m, the most main bridge total length
110m, uses base-supporting Steel Pipe Concrete Tied-arch Bridge.Main bridge superstructure uses 110m single span concrete-filled steel tube tied arch, for
Rigid tie bar rigid arch, calculates across footpath L=107.2m, and arch is second-degree parabola, and ratio of rise to span is 1/5.36, and rise is 20m.
In view of Jinghang Canal is navigable river, stop navigation for reducing and hinder ETS estimated time of sailing, being designed with land integral assembling, later stage entirety transportation by driving
Erection construction method.Owing to arch bridge span is big, prior art is used to carry out crane barge construction, in the safety of erection construction and account for
With the time in navigation channel upper exist many uncertain, therefore, how take the navigation channel time minimum in the case of quickly, safety,
Effectively complete the integral erection construction of steel bowstring arch bridge, be technical problem urgently to be resolved hurrily in construction.
Summary of the invention
For drawbacks described above present in prior art, the invention provides a kind of construction safety risk little, take navigation channel
Time is short, can complete the construction method of the integral erection construction of steel bowstring arch bridge fast and effectively.
The present invention is achieved by the following technical solution: a kind of steel bowstring arch bridge entirety crane barge erection construction method,
Steel bowstring arch bridge uses at bank side integral assembling, and later stage integral erection is constructed, and uses 1# crane barge ship and 2# crane barge ship two table flotation to hang
Ship carries out overall crane barge erection construction, it is characterized in that: construction as follows:
(1) earth anchor of crane barge ship is arranged: bury several earth anchors, wherein, at least 1# earth anchor, 2# respectively underground in both sides, riverbank
Earth anchor, 3# earth anchor, 4# earth anchor, 5# earth anchor are positioned at same bank side and are sequentially distributed along riverbank, at least 6# earth anchor, 7# earth anchor, 8#
Earth anchor, 9# earth anchor, 10# earth anchor are positioned at another bank side and are sequentially distributed along riverbank, and 5# earth anchor and 10# earth anchor are arranged on bridge main
Pier position；
(2) examination of crane barge ship entirety is hung: every table flotation is hung and is each provided with two wire rope hoists on ship in its rear and front end, utilizes
Wire rope hoist on earth anchor and two crane barge ships is connected formation pull rope by steel wire rope, and by controlling pull rope by two table flotations
Hang ship and be fixed on water surface bank side, suspension centre is set on steel bowstring arch bridge simultaneously, two table flotations hang the loop wheel machine of ship respectively with steel tied arch
Suspension centre on bridge connects, and then two loop wheel machines lift by crane simultaneously and make steel bowstring arch bridge stop lifting when departing from concrete pedestal 20cm,
After stablizing and checking that arch bridge is errorless, it is further continued for being lifted to safe altitude；
(3) crane barge ship synchronizes to retreat: by controlling pull rope and utilizing the self power of crane barge ship to make two table flotations hang ship together
Step retreats to certain distance backward, and two table flotations are hung ship is fixed on the water surface by controlling pull rope；
(4) crane barge ship synchronous rotary 90 °: by changing the ground anchor location of steel wire rope and controlling the force of steel wire rope and make two
Crane barge ship synchronous rotary 90 ° makes arch bridge towards at bridge location, stablizes two table flotations and hangs the appearance of ship by controlling steel wire rope after being rotated in place
State；
(5) crane barge ship moves in place at bridge location: the self power being hung ship by two table flotations is moved horizontally at bridge location, directly
To at the bridge location, and two table flotations are hung ship it is fixed on the water surface by controlling pull rope；
(6) at artificial bridge location, precision adjusts, fall bridge: coordinate steel wire rope to carry out direction across bridge in main pier position manually calabash
And adjust to the precision of both direction along bridge, after precision has adjusted, crane barge ship release sling cable carries out the bridge work that falls.
Further, described earth anchor is the deep timber of 1.5m.
Further, in step (2), every table flotation hangs two wire rope hoists of forward quarter and two fixing volumes at rear portion
Machine of raising forms the cross cable of " X " type respectively by steel wire rope with two earth anchor interconnections of corresponding bank side.
Further, in step (3), two table flotations hang ship by control pull rope synchronize retrogressing be by tightening up crane barge ship after
The pull rope of the pull rope in portion simultaneously release crane barge forward quarter realizes.
Further, step (4) is carried out in accordance with the following steps: a: change pull rope: hang ship by connecting two table flotations
On the steel wire rope of wire rope hoist release from earth anchor, then will connect two steel of two wire rope hoists in crane barge forward quarter
A steel wire rope away from Main Pier of Bridges in cord is changed on 10# earth anchor, by another steel wire in these two steel wire ropes
Rope is changed on 5# earth anchor and loosens, by the close bridge in two steel wire ropes connecting two wire rope hoists in crane barge ship rear portion
One steel wire rope of main pier is changed on 1# earth anchor, is changed to by another steel wire rope in these two steel wire ropes on 6# earth anchor also
Loosen；B: crane barge ship rotates: hang ship applying outside by tightening up the steel wire rope being connected with 10# earth anchor and 1# earth anchor to two table flotations
Pull strength draw crane barge ship rotate, wherein with on the steel wire rope being connected with 10# earth anchor on 1# crane barge ship and 2# crane barge ship with 1#
The traction power of the steel wire rope that earth anchor connects is main；C: strong fix: hang in two table flotations and stop after ship is rotated in place tightening up and 10#
The steel wire rope that earth anchor and 1# earth anchor connect, meanwhile tightens up the steel wire rope being connected with 5# earth anchor and 6# earth anchor, until
Stablize crane barge ship attitude.
Further, two table flotations hang fixing on the water surface of ship is by tightening up the pull rope being connected to crane barge ship front and back end
Realize.
The invention has the beneficial effects as follows: the construction method strong adaptability of the present invention, applied range, can be according to steel tied arch
The weight of the integral hoisting of bridge and field condition select rational crane barge ship tonnage, are suitably adapted for the steel system of different size specification
Bar arch bridge entirety crane barge erection construction, its construction safety risk is little, takies the navigation channel time short, is best suitable for across having navigation requirement
The erection construction of the steel structural form bridge in river course, it greatly improves integral erection efficiency, shortens the navigation channel time that takies, and
Almost without coming into operation of any auxiliary material.For China railways, highway, municipal administration etc. across the steel structure bridge of navigable river
Engineering construction has the strongest suitability and superiority.
Accompanying drawing explanation
Fig. 1 be in specific embodiment steel bowstring arch bridge entirety crane barge set up in earth anchor and pull rope layout drawing；
Fig. 2 is to carry out overall examination in specific embodiment in the erection of steel bowstring arch bridge entirety crane barge to hang work layout drawing；
Fig. 3 is that in specific embodiment, in the erection of steel bowstring arch bridge entirety crane barge, crane barge ship synchronizes to retreat layout drawing；
Fig. 4 is that in specific embodiment, in the erection of steel bowstring arch bridge entirety crane barge, crane barge ship starts to synchronize 90 ° of rotation layout drawings；
Fig. 5 is that in specific embodiment, in the erection of steel bowstring arch bridge entirety crane barge, 90 ° of rotations of crane barge ship synchronization complete back plane
Layout drawing；
Fig. 6 is that in specific embodiment, in the erection of steel bowstring arch bridge entirety crane barge, crane barge ship moves to bridge location horizontal layout
Figure；
Fig. 7 is that in specific embodiment, in the erection of steel bowstring arch bridge entirety crane barge, the artificial precision of direction across bridge adjusts schematic diagram；
Fig. 8 is that forward artificial precision adjusts schematic diagram during in specific embodiment, steel bowstring arch bridge entirety crane barge sets up；
In figure: 1,1# earth anchor；2,2# earth anchor；3,3# earth anchor；4,4# earth anchor；5,5# earth anchor；6,6# earth anchor；7,7# earth anchor；
8,8# earth anchor；9,9# earth anchor；10,10# earth anchor；11,1# pull rope；12,2# pull rope；13,3# pull rope；14,4# pull rope；
15,5# pull rope；16,6# pull rope；17,7# pull rope；18,8# pull rope；19, bearing；20, bracing frame；21, stiffness bone
Frame；22, interim middle cross beam；23,1# chain block guide chain；24,2# chain block guide chain；25, carrier setting bolt；26,5-1# pulls
Calabash guide chain, 27, steel bowstring arch bridge, 28,1# crane barge ship, 29,2# crane barge ship, 30, the main pier of 4#, 31, the main pier of 5#.
Detailed description of the invention
Below by the embodiment of indefiniteness and combine accompanying drawing the present invention is further illustrated:
As shown in drawings, Lu east bridge is steel bowstring arch bridge, uses bank side integral assembling, later stage integrated stand facility
Work, uses two table flotations to hang ship: 1# crane barge ship 28,2# crane barge ship 29 carry out overall crane barge erection construction, overall crane barge erection construction
Specifically include that the earth anchor of crane barge ship is arranged；The overall examination of crane barge ship is hung；The synchronization of crane barge ship retreats；Crane barge ship synchronizes clockwise
Half-twist；Crane barge ship moves in place to bridge location direction；At artificial bridge location, precision adjusts, fall bridge.
By calculate arch bridge bank assembly pedestal hang away from, hang height and at main pier position hang away from, hang height and select
The rationally crane barge ship of hoisting weight.Its Specific construction step is as follows:
1, the earth anchor of crane barge ship is arranged:
Several earth anchors, wherein, at least 1# earth anchor 1,2# earth anchor 2,3# earth anchor 3,4# ground are buried respectively underground in both sides, riverbank
Anchor 4,5# earth anchor 5 are positioned at same bank side and are sequentially distributed along riverbank, at least 6# earth anchor 6,7# earth anchor 7,8# earth anchor 8,9# earth anchor
9,10# earth anchor 10 is positioned at another bank side and is sequentially distributed along riverbank, and 5# earth anchor 5 is arranged on the main Dun31Chu of 5#, and 10# earth anchor 10 sets
Putting the main Dun30Chu of 4#, 1# earth anchor 1,2# earth anchor 2 are correspondingly arranged at the anterior position of 2# crane barge ship, and 6# earth anchor 6,7# earth anchor 7 correspondence set
In the rear position of 2# crane barge ship, 3# earth anchor 3,4# earth anchor 4 are correspondingly arranged at the anterior position of 1# crane barge ship, 8# earth anchor 8,9# earth anchor
9 rear positions being correspondingly arranged at 1# crane barge ship, concrete setting is as shown in Figure 1.
Ground anchor location and quantity are arranged according to the hydrolocation in hoisting process of crane barge ship, are risen by early stage
Hang, hoisting process is turned and the later stage lifts position in concrete crane barge ship water in place and determines.
2, the examination of crane barge ship entirety is hung:
As shown in Figure 2, the examination of crane barge ship entirety is hung is to hang ship integral lifting by two table flotations to carry out.At 1# crane barge ship 28
Front and back end is respectively provided with two wire rope hoists, holds and is also respectively provided with two wire rope hoists, utilize steel before and after 2# crane barge ship 29
Wire rope hoist on corresponding earth anchor and two crane barge ships is connected formation pull rope by cord.Wherein, 1# earth anchor 1 and 2# earth anchor
2 are connected with two wire rope hoists of 2# crane barge forward quarter by 1# pull rope 11 and 2# pull rope 12 respectively, 1# pull rope 11
With the cross cable that 2# pull rope 12 intersects to form " X " type, 6# earth anchor 6 and 7# earth anchor 7 is drawn by 5# pull rope 15 and 6# respectively
Rope 16 is connected with two wire rope hoists at 2# crane barge ship rear portion, and 5# pull rope 15 and 6# pull rope 16 intersects to form " X " type
Cross cable, 3# earth anchor 3 and 4# earth anchor 5 is fixed with two of 1# crane barge forward quarter by 3# pull rope 13 and 4# pull rope 14 respectively
Hoist engine connects, and 3# pull rope 13 and 4# pull rope 14 intersects to form the cross cable of " X " type, and 8# earth anchor 8 and 9# earth anchor 9 leads to respectively
Crossing 7# pull rope 17 and 8# pull rope 18 to be connected with two wire rope hoists of 1# crane barge forward quarter, 7# pull rope 17 and 8# draws
Rope 18 intersects to form the cross cable of " X " type.Arranging two suspension centres on steel bowstring arch bridge 27, two table flotations hang the loop wheel machine of ship by hanging
Rope steel wire rope is connected with the suspension centre arranged on steel bowstring arch bridge respectively.Then by tightening up above-mentioned 8 pull rope by two table flotations
Hang ship and be fixed on water surface bank side.
After preparation completes, crane barge commander assigns unified instruction, and two table flotations are hung and slowly lifted by crane, when arch bridge departs from concrete
During pedestal 20cm, crane barge commander assigns halt instruction, stablizes arch bridge, and check arch bridge comprehensively, observes deformation etc.,
After all are errorless, continue to be lifted to certain safe altitude (liftoff 2m).During lifting, special messenger should be had to watch steel wire rope at suspension centre
Degree of tightness situation, find potential safety hazard should suspend lifting immediately, process.
3, crane barge ship synchronizes to retreat:
The synchronization retrogressing of crane barge ship hangs quarter pull rope by two table flotations and self power is worked in coordination with and carried out, such as accompanying drawing
Shown in 3, by tightening up 7# the pull rope 17 and 8# pull rope 18 of 1# crane barge ship 28 afterbody and tightening up 2# crane barge ship 29 afterbody simultaneously
5# pull rope 15 and 6# pull rope 16 provide power carry out synchronize retreat, provided by the power of crane barge ship self simultaneously
Retreat thrust.Meanwhile discharge two table flotations and hang the 1# pull rope 11 in fore portion, 2# pull rope 12,3# pull rope 13,4# traction
Rope 14, wait retreating to certain distance (20m), stops tightening up 5# pull rope 15,6# pull rope 16,7# pull rope 17,8# traction
Rope 18, and brake two table flotations hang ship by fastening 1# pull rope 11,2# pull rope 12,3# pull rope 13,4# pull rope 14, treat
8 pull ropes all fasten after stablizing, and two table flotations are hung ship and are i.e. fixed on the water surface, i.e. complete the construction that crane barge ship synchronizes to retreat
Operation.
4, crane barge ship synchronizes to turn clockwise 90 °:
It is to adjust crane barge ship attitude by the ground anchor location of conversion steel wire rope that crane barge ship synchronizes to turn clockwise 90 °.Its
Specifically comprise the following steps that
A: change pull rope: the pull rope connecting two table flotations and hanging the wire rope hoist on ship is released, then from earth anchor
2# pull rope 12,4# pull rope 14 are changed on 10# earth anchor 10,5# pull rope 15,7# pull rope 17 are changed to 1# earth anchor 1
On, meanwhile 1# pull rope 1,3# pull rope 3 are changed on 5# earth anchor 5 and loosened, by 6# pull rope 16,8# pull rope 18
Change on 6# earth anchor 6 and loosen.
B: crane barge ship rotate: by tighten up 2# pull rope 12,4# pull rope 14,5# pull rope 15,7# pull rope 17 to
Two table flotations are hung the outside pull strength clockwise of ship applying and are rotated clockwise to draw crane barge ship, under the effect of current
Crane barge attitude can be adjusted effectively and rapidly, wherein based on 4# pull rope 14, the traction power of 5# pull rope 15, until rotation
Turn in place, as shown in Figure 4.
C: strong fix: hang stopping contraction 2# pull rope 12,4# pull rope 14,5# when ship rotates to 90 ° in two table flotations and lead
Messenger 15,7# pull rope 17, meanwhile shrink 1# pull rope 1,3# pull rope 3,6# pull rope 16,8# pull rope 18
Tighten up, until stablizing crane barge ship attitude, as shown in Figure 5.
5, crane barge ship moves in place at bridge location:
It is to be travelled at bridge location by crane barge ship self power that crane barge ship moves in place to bridge location direction, until near bridge location
Place.Specifically comprise the following steps that
After crane barge ship has turned clockwise, should move horizontally at bridge location direction, move at current and crane barge ship self
The lower power forming movement of the effect of power moves at bridge location.After starting crane barge ship self power, crane barge ship is slowly at bridge location
Mobile, the most slowly release 5# pull rope 15,6# pull rope 16,7# pull rope 17,8# pull rope 18, and according to speed of advancing
Degree shrinks 1# pull rope 11,2# pull rope 12,3# pull rope 13,4# pull rope 14, until crane barge ship following current traveling sets to distance
Meter bridge location 10m place stops power and navigates by water, and fixes two table flotations hang the water surface site of ship by tightening up 8 pull ropes.
After crane barge ship is stable, improve the height of arch bridge, until exceeding by shrinking sling cable on crane barge main hook
Bridge location designed elevation 1m, by shrinking 1# pull rope 11,2# pull rope 12,3# pull rope 13,4# pull rope 14 after stable
There is provided onward impulse, at slow for arch bridge transportation by driving to bridge location.And fix two table flotations hang ship again by tightening up 8 pull ropes
Water surface site, actual plane is arranged as shown in Figure 6.6, at artificial bridge location, precision adjusts, fall bridge:
At artificial bridge location, precision adjusts, the bridge that falls is by coordinating steel wire rope to carry out cross-bridges in main pier position manually calabash
To and along precision from bridge to both direction adjust, after precision has adjusted, crane barge ship discharge sling cable carry out the bridge work that falls
Make.
After crane barge ship is fixing, carry out falling bridge construction, is carried out falling bridge by sling cable on release crane barge main hook, waits
To the last 10cm discrepancy in elevation, use and manually on main pier, carry out precision adjustment, adjust in place after can fall bridge.Concrete operations
As follows:
(1) direction across bridge accurate adjustment: use chain block to be finely adjusted, two chain block guide chains are set at a bridge location, with
As a example by the main pier of 5#, as shown in Figure 7,1# chain block guide chain 23 is fixed on the bearing 19 of 5-1# pier stud by steel wire rope one end
At bolt 25, the other end is fixed on the stiff skeleton 21 on 5-2# pier stud by chain block；2# chain block guide chain 24 is led to
Crossing at the bolt 25 of the bearing 19 that steel wire rope one end is fixed on 5-2# pier stud, the other end is fixed on 5-1# pier stud by chain block
On stiff skeleton 21 on；
If arch bridge offsets to 5-2# pier direction, then led by contraction 1# chain block guide chain 23, release 2# chain block
Chain 24 regulates bridge location and moves to 5-1# pier stud direction and carry out accurate adjustment.On the contrary, if arch bridge offsets to 5-1# pier direction, then pass through
Shrink 2# chain block guide chain 24, release 1# chain block guide chain 23 regulates bridge location and moves to 5-2# direction and carry out accurate adjustment.Treat
After direction across bridge position adjustment is in place, 1#, 2# chain block guide chain should be fastened, it is ensured that main bridge does not shifts at direction across bridge simultaneously.
(2) along bridge to accurate adjustment: the main pier of this bridge is 4#, 5# pier, suitable bridge is also to carry out accurate adjustment by chain block to regulation, tool
Body as shown in Figure 8, arranges (26) 5-1# chain block guide chain 26 on the main pier of 5#, and one end is fixed on the bolt 25 of bearing 19
On, the other end is fixed on interim middle cross beam 22；Arranging 4-1# chain block guide chain on the main pier of 4# equally, one end is fixed on props up
On seat bolt, the other end is fixed on interim middle cross beam.
If bridge location offsets to 5# main pier side, then accurately adjusted by contraction 4-1# chain block guide chain；If it is main
Bridge offsets to 4# main pier side, then accurately adjusted by contraction 5-1# chain block guide chain 26, until along bridge to just adjusting
After Wei, answer two ends to fasten chain block, it is ensured that main bridge is not moving along the bridge simultaneously.
Until along bridge after, direction across bridge accurate adjustment completes, crane barge ship should be assigned bridge instruction, crane barge ship release main hook steel immediately
Cord, main bridge falls on the support system on bearing, carries out follow-up fixing work subsequently.
Other parts in the present embodiment use known technology, do not repeat them here.
Claims (6)
1. a steel bowstring arch bridge entirety crane barge erection construction method, steel bowstring arch bridge uses at bank side integral assembling, and the later stage is whole
Body erection construction, uses 1# crane barge ship (28) and 2# crane barge ship (29) two table flotation to hang ship and carries out overall crane barge erection construction, and it is special
Levy and be: construction as follows:
(1) earth anchor of crane barge ship is arranged: bury several earth anchors, wherein, at least 1# earth anchor (1), 2# respectively underground in both sides, riverbank
Earth anchor (2), 3# earth anchor (3), 4# earth anchor (4), 5# earth anchor (5) are positioned at same bank side and are sequentially distributed along riverbank, at least 6# ground
Anchor (6), 7# earth anchor (7), 8# earth anchor (8), 9# earth anchor (9), 10# earth anchor (10) are positioned at another bank side and are sequentially distributed along riverbank,
And 5# earth anchor (5) and 10# earth anchor (10) are arranged on Main Pier of Bridges position；
(2) examination of crane barge ship entirety is hung: every table flotation is hung and is each provided with two wire rope hoists on ship in its rear and front end, utilizes steel wire
Restrict to connect the wire rope hoist on earth anchor and two crane barge ships and form pull rope, and by controlling pull rope, two table flotations are hung ship
Be fixed on water surface bank side, suspension centre be set on steel bowstring arch bridge simultaneously, two table flotations hang the loop wheel machine of ship respectively with on steel bowstring arch bridge
Suspension centre connect, then two loop wheel machines lift by crane simultaneously and make steel bowstring arch bridge stop lifting when departing from concrete pedestal 20cm, stable
And after checking that arch bridge is errorless, be further continued for being lifted to safe altitude；
(3) crane barge ship synchronize retreat: by control pull rope and utilize the self power of crane barge ship make two table flotations hang ship synchronize to
Retreat to certain distance, and two table flotations are hung ship be fixed on the water surface by controlling pull rope；
(4) crane barge ship synchronous rotary 90 °: by changing the ground anchor location of steel wire rope and controlling the force of steel wire rope and make two table flotations hang
Ship synchronous rotary 90 ° makes arch bridge towards at bridge location, stablizes two table flotations and hangs the attitude of ship by controlling steel wire rope after being rotated in place；
(5) crane barge ship moves in place at bridge location: the self power being hung ship by two table flotations is moved horizontally at bridge location, until leaning on
At nearly bridge location, and two table flotations are hung ship it is fixed on the water surface by controlling pull rope；
(6) at artificial bridge location, precision adjusts, fall bridge: coordinate steel wire rope to carry out direction across bridge and suitable in main pier position manually calabash
Bridge adjusts to the precision of both direction, and after precision has adjusted, crane barge ship release sling cable carries out the bridge work that falls.
Steel bowstring arch bridge entirety crane barge erection construction method the most according to claim 1, is characterized in that: described earth anchor is
The deep timber of 1.5m.
Steel bowstring arch bridge entirety crane barge erection construction method the most according to claim 1 and 2, is characterized in that: step (2)
In, two wire rope hoists of two wire rope hoists and rear portion that every table flotation hangs forward quarter pass through steel wire rope respectively with corresponding
Two earth anchor interconnections of bank side form the cross cable of " X " type.
Steel bowstring arch bridge entirety crane barge erection construction method the most according to claim 1 and 2, is characterized in that: step (3)
In, it is by tightening up the pull rope at crane barge ship rear portion and discharging crane barge simultaneously that two table flotations hang ship by control pull rope synchronizing to retreat
The pull rope of forward quarter realizes.
Steel bowstring arch bridge entirety crane barge erection construction method the most according to claim 1 and 2, is characterized in that: in step (4)
Carry out in accordance with the following steps:
A: change pull rope: is released from earth anchor by the steel wire rope connecting two table flotations and hanging the wire rope hoist on ship, then will company
Connect the steel wire rope away from Main Pier of Bridges in two steel wire ropes of two wire rope hoists in crane barge forward quarter and change to 10# ground
On anchor (10), another steel wire rope in these two steel wire ropes is changed to 5# earth anchor (5) and above and loosens, after crane barge ship being connected
One steel wire rope of the close Main Pier of Bridges in two steel wire ropes of two wire rope hoists in portion is changed on 1# earth anchor (1), will
Another steel wire rope in these two steel wire ropes is changed to 6# earth anchor (6) and above and is loosened；
B: crane barge ship rotates: hang ship to two table flotations execute by tightening up the steel wire rope being connected with 10# earth anchor (10) and 1# earth anchor (1)
Add external traction force and rotate to draw crane barge ship, wherein float with the steel wire rope being connected with 10# earth anchor (10) on 1# crane barge ship and 2#
The traction power hanging the steel wire rope being connected on ship with 1# earth anchor (1) is main；
C: strong fix: hang in two table flotations and stop after ship is rotated in place tightening up the steel being connected with 10# earth anchor (10) and 1# earth anchor (1)
Cord, meanwhile tightens up the steel wire rope being connected with 5# earth anchor (5) and 6# earth anchor (6), until stablizing crane barge ship attitude.
Steel bowstring arch bridge entirety crane barge erection construction method the most according to claim 1 and 2, is characterized in that: two table flotations are hung
Fixing on the water surface of ship is to realize by tightening up the pull rope being connected to crane barge ship front and back end.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905116A (en) * | 2017-12-19 | 2018-04-13 | 中机建重工有限公司 | Construction method of large-span through type rigid tied steel arch bridge |
| CN109552563A (en) * | 2018-12-18 | 2019-04-02 | 中铁广州工程局集团有限公司 | A kind of accurate positioning method of barge |
| CN110747752A (en) * | 2019-10-31 | 2020-02-04 | 上海东鼎钢结构有限公司 | Floating-dragging method installation process for large-span steel structure arch bridge |
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| CN113684760A (en) * | 2021-08-03 | 2021-11-23 | 中交路桥建设有限公司 | Method for hoisting ropeless area beam section of half-through basket arch bridge |
| CN114319136A (en) * | 2022-01-19 | 2022-04-12 | 江苏海洋大学 | Rapid construction method for pushing steel bridge floating crane in navigation water area |
| CN114319136B (en) * | 2022-01-19 | 2023-04-25 | 江苏海洋大学 | Rapid construction method for pushing steel bridge floating crane in navigable water area |
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