CN105317008B - A kind of Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment - Google Patents
A kind of Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment Download PDFInfo
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- CN105317008B CN105317008B CN201510565183.6A CN201510565183A CN105317008B CN 105317008 B CN105317008 B CN 105317008B CN 201510565183 A CN201510565183 A CN 201510565183A CN 105317008 B CN105317008 B CN 105317008B
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Abstract
The invention discloses a kind of Integral lifting methods of steel truss girder cable-stayed bridge steel truss girder segment.With Sarasota（1）Steel truss girder segment is carried out respectively to both sides for origin（11）Assembly, close to Sarasota（1）Steel truss girder segment（11）Lift by crane using shifting method is swung and complete assembly, complete it is assembled after, use next 1~3 section steel truss girder segment of vertical-lift method lifting（11）Assembly is carried out, after the completion of assembled, vertical shift method is used to lift by crane remaining steel truss girder segment（11）Complete entire assembled process.The characteristics of present invention has, and construction efficiency is high, construction cost is low and place limitation is small.
Description
Technical field
The present invention relates to a kind of handling method in bridge construction field, particularly a kind of steel truss girder cable-stayed bridge steel truss girder section
The Integral lifting method of section.
Background technology
Steel truss girder cable-stayed bridge in modern bridge construction using very extensive, mainly have span ability it is big, from heavy and light, just
In transport, be easy to repair and replace the advantages of.The mode of construction of steel truss girder cable-stayed bridge mainly transports steel truss girder segment at present
Its handling is assembled into complete truss to position to be assembled, then with handling apparatus.But when building steel truss girder cable-stayed bridge in mountain area
Mainly there is problems with：1) built in mountain area when constructing, mountain stream often very deep between two mountains, in across steel truss girder segment not
Corresponding Hoisting Position can be transported to, therefore which requires height to construction site；2) it to overcome above-mentioned problem, mainly adopts at present
Segment rod piece is carried out with Full Rotary erection crane and dissipates spelling, but the form of construction work, and equipment is expensive, increases construction cost.
Invention content
The object of the present invention is to provide a kind of Integral lifting methods of steel truss girder cable-stayed bridge steel truss girder segment.The present invention
Have, construction efficiency is high, construction cost is low and place limits the characteristics of small.
Technical scheme of the present invention：A kind of Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment, using Sarasota as original
Point carries out steel truss girder section assembling to both sides respectively, and the steel truss girder segment use close to Sarasota swings shifting method and lifts by crane and complete assembly,
It is assembled using next 1~3 section steel truss girder segment progress of vertical-lift method lifting after completing assembly, after the completion of assembly, use
Vertical shift method lifts by crane remaining steel truss girder segment and completes entire assembled process.
In the Integral lifting method of aforementioned steel truss girder cable-stayed bridge steel truss girder segment, the shifting method of swinging is,
A, installed in Sarasota side and promote Bailey bracket, and install respectively below Sarasota first hoist, second hoist,
Third hoist engine and Volume Four raise machine；Sliding way and thrustor are installed on the bottom end rail of Sarasota；
B, the hoisting rope of first hoist and third hoist engine respectively passes through the vertical shift trolley promoted in Bailey bracket that will wait to lift
Steel truss girder segment be lifted up；
C, when steel truss girder segment is thus lifted to away from 50-100cm above bottom end rail, vertical shift trolley drives steel truss girder segment court
Sarasota direction slides；
D, when steel truss girder segment is slid onto above sliding way, vertical shift trolley stops sliding, first hoist and third volume
It raises machine and transfers steel truss girder segment at away from 2-10cm above sliding way, Volume Four raises the pulling rope of machine across the support of Sarasota at this time
Pulley is connect with steel truss girder segment, disconnects connection of the hoisting rope with steel truss girder segment of third hoist engine later；
E, Volume Four raises machine and gradually packs up pulling rope, while vertical shift trolley continues sliding and Synchronous Radio hoisting rope, until steel
Trusses segment enters sliding way；
F, steel truss girder segment is shifted onto predeterminated position along sliding way using thrustor.
In the Integral lifting method of aforementioned steel truss girder cable-stayed bridge steel truss girder segment, the step c for swinging shifting method is, when
When steel truss girder segment is thus lifted to away from bottom end rail top 50-100cm, the guide rope of second hoist is connect with steel truss girder segment,
Vertical shift trolley drives steel truss girder segment to be slid towards Sarasota direction later, and second hoist synchronizes the guide rope that lengthens；
The step d is that, when steel truss girder segment is slid onto above sliding way, vertical shift trolley stops sliding, later, is broken
Convince the connection of messenger and steel truss girder segment by patient analysis, first hoist and third hoist engine transfer steel truss girder segment to away from above sliding way
At 2-10cm, Volume Four is raised the pulling rope of machine and is connect across the support pulley of Sarasota with steel truss girder segment at this time, disconnects the later
The hoisting rope of three hoist engines and the connection of steel truss girder segment；
In the Integral lifting method of aforementioned steel truss girder cable-stayed bridge steel truss girder segment, the vertical-lift method is,
A, after the completion of the lifting assembly of shifting method is swung, erection crane is installed on truss, it is small using the promotion on erection crane
Vehicle vertical-lift steel truss girder segment to be lifted；
B, when steel truss girder segment is thus lifted to truss level, vertical shift lifting truck is simultaneously completed and the assembly of truss.
In the step b of vertical-lift method described in the Integral lifting method of aforementioned steel truss girder cable-stayed bridge steel truss girder segment,
When steel truss girder segment is with truss level, the gap of 10-50cm is reserved between steel truss girder segment and truss.
In the Integral lifting method of aforementioned steel truss girder cable-stayed bridge steel truss girder segment, the vertical shift method is,
A, vertical shift track below truss is set, and front and rear fortune beam trolley is set on vertical shift track, is installed on truss
Vertical-lift hoist engine installs the first removable limiter on vertical shift track, and setting second is removable in front of the first removable limiter
Limiter installs the removable limiter of third in the rear end of fortune beam trolley；Premise is set gradually on the steel truss girder segment for treating handling
Hanging point, preceding vertical shift suspension centre, rear promotion suspension centre and rear vertical shift suspension centre；
B, the promotion hawser of vertical-lift hoist engine connect respectively premise hanging point and after promote suspension centre, start later vertical
Promotion hoist engine, which hangs steel truss girder segment, is raised to predeterminated position；
C, after reaching predeterminated position, the vertical shift hawser of fortune beam trolley is connect respectively with preceding vertical shift suspension centre and rear vertical shift suspension centre,
Vertical shift hawser is pre-tightened, hawser is promoted and is detached from premise hanging point and promotes suspension centre afterwards；
D, start fortune beam trolley, steel truss girder segment is moved forward along vertical shift track, to encounter first removable when fortune beam trolley front end
During limiter, fortune beam trolley stops, and lifting truck vertical shift to corresponding position, preceding lifting truck is connect with premise hanging point, preceding fortune
The vertical shift hawser of beam trolley is detached from preceding vertical shift suspension centre, removes the first removable limiter on vertical shift track；
E, after removing the first removable limiter, fortune beam trolley continues to move forward, and preceding lifting truck synchronizes Forward, and it is small currently to transport beam
When Chinese herbaceous peony end touches the second removable limiter, preceding fortune beam trolley is out of service, rear to transport beam trolley and the continuation of preceding lifting truck together
Step Forward, when the removable limiter of the rear third for transporting fortune beam trolley rear end before beam trolley front end touches, rear beam trolley of transporting is with before
Lifting truck is simultaneously stopped operation, is connect at this point, rear lifting truck moves to corresponding position with the rear suspension centre that promoted, rear to transport beam trolley
Vertical shift hawser and rear vertical shift suspension centre be detached from, at this point, lifting truck moves forward simultaneously moves forward to assembled position by steel truss girder segment, move
To assembled position, lifting truck promotes steel truss girder segment simultaneously, is allowed to and truss split, the primary assembled process of completion, assembly
Afterwards, the second removable limiter is removed, above-mentioned vertical shift method step is repeated later, completes the assembly of remaining steel truss girder segment.
In the Integral lifting method of aforementioned steel truss girder cable-stayed bridge steel truss girder segment, the steel truss girder segment is in auxiliary pier
When locating handling assembly, pier handling method was used to carry out handling, the pier handling method of crossing is to carry out in the steps below,
A, interim bracket is set in auxiliary pier side, interim slideway and thrustor is set on interim bracket；
B, vertical shift lifting truck treats the steel truss girder segment of handling to away from interim sliding to predeterminated position, lifting truck vertical-lift
During road top side location 5-10cm, lifting truck continues synchronous Forward until reaching above interim slideway；
C, on lifting truck decentralization steel truss girder segment to interim slideway, lifting truck and the company by steel truss girder segment are released
It connects, after steel truss girder segment is shifted onto the diagonal web member front end position concordant with interim bracket front end of steel truss girder segment by thrustor,
By steel truss girder segment with being fixed temporarily with interim bracket.
D, lifting truck turns again to initial position, and repeats above-mentioned b, step c by next steel truss girder segment handling to facing
When slideway, and the assembly of steel truss girder segment completed and be fixed temporarily on interim slideway；After assembly is good, through thrustor vertical shift
The assembly with truss is completed to truss.
In the Integral lifting method of aforementioned steel truss girder cable-stayed bridge steel truss girder segment, the step c for crossing pier handling method
On lifting truck decentralization steel truss girder segment to interim slideway, to make the front beam of steel truss girder segment and interim ramps contact, releasing
Preceding lifting truck, thrustor move forward steel truss girder segment along interim slideway, and rear lifting truck synchronizes Forward, until steel truss girder section
Duan Qianduan is concordant with interim bracket front end, and later, rear lifting truck continues to transfer, and steel truss girder segment is completely placed in interim cunning
On road, the connection of lifting truck and steel truss girder segment after releasing, and by steel truss girder segment with being fixed temporarily with interim bracket.
Compared with prior art, the present invention for different assembled positions steel truss girder segment using targetedly method into
Row handling, for Full Rotary erection crane handling, handling mode is more flexible；In addition to this, the present invention is first will
After the assembly that loose mail completes steel truss girder segment on ground, then by whole steel truss girder segment handling to the aerial entirety truss of carrying out
Assembly, relative to Full Rotary erection crane by the loose mail handling of assembled steel truss girder segment to it is aerial dissipate spell for, apply
Work is more efficient, and the significantly more efficient shortening construction period of energy accelerates construction progress.The present invention, which first passes through, to swing shifting method handling assembly and leans on
The steel truss girder segment of nearly Sarasota, capital equipment is promotes Bailey bracket and hoist engine；It is lifted by crane by vertical-lift method next
1-3 section steel truss girder segments carry out assembly, and capital equipment is erection crane；It is complete that remaining steel truss girder segment is lifted by crane using vertical shift method
Into entire assembled process, capital equipment is fortune beam trolley and erection crane；With the huge Full Rotary erection crane phase of large size
Comparatively, the volume smaller of its equipment, equipment investment cost is lower, and the installing and dismounting of equipment is more convenient, further
Improve the construction speed of engineering.Most of steel truss girder segment of handling of the present invention is all in the air directly by transporting beam trolley
Vertical shift carries out assembled, handling mode, without the ground being again transported to steel truss girder segment below assembled position to assembled position
Vertical-lift lifts again, i.e., required handling place smaller, overcomes when mountain area construction is constructed, often very deep between two mountains
Mountain stream, in across steel truss girder segment be difficult the difficulty that is transported to corresponding Hoisting Position, effectively adapted to mountain construction place
Small environment, the application range for making the present invention are wider.But in practice, it has been found that steel truss girder segment is transported to assembly by fortune beam trolley
It is directly complicated using fortune beam trolley handling assembly program in assembly behind position, it is inconvenient.The present invention devises one thus
Kind makes the problem be well solved the suspension centre switching construction of steel truss girder segment；Its concrete operations mode is vertical-lift
Hoist engine first promotes suspension centre lifting through the premise hanging point of steel truss girder segment with after, then is done directly suspension centre switching in the air, i.e.,
Preceding vertical shift suspension centre and rear vertical shift suspension centre (switching of first time suspension centre) are switched to by premise hanging point and the rear suspension centre that promoted, after switching by
Fortune beam trolley is transported to corresponding position, is gradually completing suspension centre switching again, preceding vertical shift suspension centre first specially is switched to preceding promotion
Suspension centre (second of suspension centre switching), preceding lifting truck is connect with premise hanging point, at this point, preceding lifting truck and rear fortune beam trolley are same
When steel truss girder segment is transported into a distance forward after, after rear vertical shift suspension centre is switched to again promoted suspension centre (third time suspension centre
Switching), after switching, rear lifting truck is connect with the rear suspension centre that promoted, at this point, steel truss girder segment is promoted by preceding lifting truck with after
Trolley transports and completes to splice jointly.
Description of the drawings
Fig. 1 is the working state schematic representation that the present invention swings shifting method；
Fig. 2 is the working state schematic representation of vertical-lift method of the present invention；
Fig. 3 is the working state schematic representation that beam trolley synchronized swing is transported in vertical shift method of the present invention；
Fig. 4 is the working state schematic representation of lifting truck synchronized swing in vertical shift method of the present invention；
Fig. 5 is the working state schematic representation that the present invention crosses pier handling method.
Label in attached drawing for：1- Sarasotas, 2- promote Bailey bracket, 3- first hoist, 31- hoisting ropes, the second elevators of 4-
Machine, 41- guide ropes, 5- third hoist engines, 51- hoisting ropes, 6- Volume Fours raise machine, and 61-, which is pulled, to restrict, 7- bottom end rails, 8- sliding ways,
9th, 10- vertical shifts trolley, 11- steel truss girder segments, 12- support pulleys, 13- erection cranes, 131,132- lifting trucks, 14- vertical shifts
Track, 15,16- fortune beam trolleies, 151,161- vertical shift hawsers, 17- vertical-lift hoist engines, the first removable limiters of 18-, 19-
Second removable limiter, the removable limiter of 20- thirds, 21- premises hanging point, vertical shift suspension centre before 22- promote suspension centre after 23-,
Vertical shift suspension centre after 24-, 25- auxiliary piers, the interim brackets of 26-, the interim slideways of 27-, 28- diagonal web members.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment 1.A kind of Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment is origin to both sides with Sarasota 1
11 assembly of steel truss girder segment is carried out respectively, and 11 use of steel truss girder segment close to Sarasota 1 swings shifting method and lifts by crane and complete assembly, completes
After assembly, lift by crane next 1-3 section steel truss girder segment 11 using vertical-lift method and carry out assembly, after the completion of assembled, using vertical
Shifting method lifts by crane remaining steel truss girder segment 11 and completes entire assembled process.
Aforementioned swings shifting method for (as shown in Figure 1)：
A, it is installed in 1 side of Sarasota and promotes Bailey bracket 2, and first hoist 3, volume Two are installed respectively below Sarasota 1
It raises machine 4, third hoist engine 5 and Volume Four and raises machine 6；Sliding way 8 and thrustor are installed on the bottom end rail 7 of Sarasota 1；
B, the hoisting rope 31,51 of first hoist 3 and third hoist engine 5 respectively passes through the vertical shift trolley promoted in Bailey bracket 2
9th, 10 steel truss girder segment 11 to be lifted is lifted up；
C, when steel truss girder segment 11 is thus lifted to away from 7 top 50-100cm of bottom end rail, vertical shift trolley 9,10 drives steel truss
Girder segment 11 slides towards 1 direction of Sarasota；
D, when steel truss girder segment 11 is slid onto 8 top of sliding way, vertical shift trolley 9,10 stops sliding, first hoist 3
Steel truss girder segment 11 is transferred with third hoist engine 5 to arrive at away from 8 top 2-10cm of sliding way, Volume Four raises the pulling rope of machine 6 at this time
61 pass through the support pulley 12 of Sarasota 1 to be connect with steel truss girder segment 11, disconnect the hoisting rope 51 and steel truss of third hoist engine 5 later
The connection of girder segment 11；
E, Volume Four raises machine 6 and gradually packs up pulling rope 61, while vertical shift trolley 9 continues sliding and Synchronous Radio hoisting rope 31,
Until steel truss girder segment 11 enters sliding way 8；
F, steel truss girder segment 11 is shifted onto predeterminated position along sliding way 8 using thrustor.
Aforementioned vertical-lift method is (as shown in Figure 2)：
A, after the completion of the lifting assembly of shifting method is swung, erection crane 13 on truss is installed, uses carrying on erection crane 13
Liter trolley 131,132 vertical-lifts steel truss girder segment 11 to be lifted；
B, when steel truss girder segment 11 is thus lifted to truss level, vertical shift lifting truck 131,132 and complete and truss
Assembly.
In the step b of vertical-lift method described in the Integral lifting method of aforementioned steel truss girder cable-stayed bridge steel truss girder segment,
When steel truss girder segment 11 is with truss level, the gap of 10-50cm is reserved between steel truss girder segment 11 and truss.The truss
To be assembled in the structure that the steel truss girder segment of Sarasota both sides is formed.
Aforementioned vertical shift method for (as shown in Figures 3 and 4),
A, vertical shift track 14 below truss is set, and front and rear fortune beam trolley 15,16 is set on vertical shift track 14, in purlin
Vertical-lift hoist engine 17 on frame is installed, the first removable limiter 18, the first removable limiter 18 are installed on vertical shift track 14
Front sets the second removable limiter 19, and the removable limiter 20 of third is installed in the rear end of fortune beam trolley 16；In the steel for treating handling
Premise hanging point 21, preceding vertical shift suspension centre 22, rear promotion suspension centre 23 and rear vertical shift suspension centre 24 are set gradually on trusses segment 11；
B, the promotion hawser of vertical-lift hoist engine 17 connects premise hanging point 21 and rear promotion suspension centre 23, Zhi Houqi respectively
Dynamic vertical-lift hoist engine 17, which hangs steel truss girder segment 11, is raised to predeterminated position；
C, after reaching predeterminated position, the vertical shift hawser 151,161 of fortune beam trolley 15,16 respectively with preceding vertical shift suspension centre 22 and after
Vertical shift suspension centre 24 connects, and pre-tightens vertical shift hawser 151,161, promotes hawser and is detached from premise hanging point 21 and promotes suspension centre 23 afterwards；
D, start fortune beam trolley 15,16, steel truss girder segment 11 is moved forward along vertical shift track 14, when 16 front end of fortune beam trolley is touched
During to the first removable limiter 18, fortune beam trolley 15,16 stops, lifting truck 131,132 vertical shifts to corresponding position, lifting truck
132 connect with premise hanging point 21, and the vertical shift hawser 161 of fortune beam trolley 16 is detached from preceding vertical shift suspension centre 22, removes vertical shift track
The first removable limiter 18 on 14；
E, after removing the first removable limiter 18, fortune beam trolley 15,16 continues to move forward, and preceding lifting truck 132 synchronizes Forward,
When 16 front end of fortune beam trolley touches the second removable limiter 19, fortune beam trolley 16 is out of service, fortune beam trolley 15 and promotion
Trolley 132 continues synchronous Forward, when transporting 15 front end of beam trolley and touching the removable limiter 20 of third of 16 rear end of fortune beam trolley,
Fortune beam trolley 15 and lifting truck 132 are simultaneously stopped operation, are hung at this point, lifting truck 131 moves to corresponding position with rear promotion
23 connection of point, the vertical shift hawser 151 of fortune beam trolley 15 are detached from rear vertical shift suspension centre 24, at this point, lifting truck 131,132 at the same before
It moves and steel truss girder segment 11 is moved forward into assembled position, after moving to assembled position, lifting truck 131,132 promotes steel truss girder section simultaneously
Section 11 is allowed to after assembled, remove the second removable limiter 19 with truss split, the primary assembled process of completion, repeat later above-mentioned
Vertical shift method step completes the assembly of remaining steel truss girder segment 11.
Aforementioned steel truss girder segment 11 during handling assembly, used pier handling method to carry out handling at auxiliary pier 25, described
The pier handling method crossed be (as shown in Figure 5),
A, interim bracket 26 is set in 25 side of auxiliary pier, interim slideway 27 and pushing tow is set to fill on interim bracket 26
It puts；
B, vertical shift lifting truck 131,132 arrive predeterminated position, and lifting truck 131,132 vertical-lifts treat the steel truss girder of handling
When segment 11 is arrived away from interim 27 top side location 5-10cm of slideway, lifting truck 131,132 continues synchronous Forward until reaching interim
27 top of slideway；
C, lifting truck 131, on 132 decentralization steel truss girder segments 11 to interim slideway 27, release lifting truck 131,132 with
By the connection of steel truss girder segment 11, thrustor shifts steel truss girder segment 11 28 front end of diagonal web member of steel truss girder segment 11 onto with facing
When the concordant position in 26 front end of bracket after, by steel truss girder segment 11 with being fixed temporarily with interim bracket 26.
D, lifting truck 131,132 turns again to initial position, and repeats above-mentioned b, step c by next steel truss girder segment 11
Handling is to interim slideway 27, and the assembly of steel truss girder segment 11 completed and be fixed temporarily on interim slideway 27；After assembly is good,
Through completing the assembly with truss at thrustor vertical shift to truss.
Embodiment 2.A kind of Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment is formed as shown in Figs. 1-5, with rope
Tower 1 carries out 11 assembly of steel truss girder segment to both sides respectively for origin, and the lifting of shifting method is swung in 11 use of steel truss girder segment close to Sarasota 1
And assembly is completed, after completing assembly, assembly is carried out using next 1~3 section steel truss girder segment 11 of vertical-lift method lifting, is spelled
After the completion of dress, lift by crane remaining steel truss girder segment 11 using vertical shift method and complete entire assembled process.
Aforementioned swings shifting method for (as shown in Figure 1),
A, it is installed in 1 side of Sarasota and promotes Bailey bracket 2, and first hoist 3, volume Two are installed respectively below Sarasota 1
It raises machine 4, third hoist engine 5 and Volume Four and raises machine 6；Sliding way 8 and thrustor are installed on the bottom end rail 7 of Sarasota 1；
B, the hoisting rope 31,51 of first hoist 3 and third hoist engine 5 respectively passes through the vertical shift trolley promoted in Bailey bracket 2
9th, 10 steel truss girder segment 11 to be lifted is lifted up；
C, when steel truss girder segment 11 is thus lifted to away from 7 top 50-100cm of bottom end rail, the guide rope 41 of second hoist 4
It is connect with steel truss girder segment 11, vertical shift trolley 9,10 drives steel truss girder segment 11 to be slid towards 1 direction of Sarasota later, second hoist
4 synchronize the guide rope 41 that lengthens；
D, when steel truss girder segment 11 is slid onto 8 top of sliding way, vertical shift trolley 9,10 stops sliding, and later, disconnection is led
The connection of messenger 41 and steel truss girder segment 11, first hoist 3 and third hoist engine 5 are transferred steel truss girder segment 11 and are arrived away from sliding way
At 8 top 2-10cm, at this time Volume Four raise machine 6 pulling rope 61 pass through Sarasota 1 support pulley 12 connect with steel truss girder segment 11
It connects, disconnects connection of the hoisting rope 51 with steel truss girder segment 11 of third hoist engine 5 later；
E, Volume Four raises machine 6 and gradually packs up pulling rope 61, while vertical shift trolley 9 continues sliding and Synchronous Radio hoisting rope 31,
Until steel truss girder segment 11 enters sliding way 8；
F, steel truss girder segment 11 is shifted onto predeterminated position along sliding way 8 using thrustor.
Aforementioned vertical-lift method is (as shown in Figure 2),
A, after the completion of the lifting assembly of shifting method is swung, erection crane 13 on truss is installed, uses carrying on erection crane 13
Liter trolley 131,132 vertical-lifts steel truss girder segment 11 to be lifted；
B, when steel truss girder segment 11 is thus lifted to truss level, vertical shift lifting truck 131,132 and complete and truss
Assembly；When steel truss girder segment 11 and truss level, the gap of 10-50cm is reserved between steel truss girder segment 11 and truss, with
Prevent steel truss girder segment 11 from colliding with truss.
Aforementioned vertical shift method for (as shown in Figures 3 and 4),
A, vertical shift track 14, and the setting fortune beam trolley 15,16 on vertical shift track 14 are set below truss, on truss
Vertical-lift hoist engine 17 is installed, the first removable limiter 18, the first removable 18 front of limiter are installed on vertical shift track 14
Second removable limiter 19 is set, the removable limiter 20 of third is installed in the rear end of fortune beam trolley 16；In the steel truss girder for treating handling
Premise hanging point 21, preceding vertical shift suspension centre 22, rear promotion suspension centre 23 and rear vertical shift suspension centre 24 are set gradually on segment 11；
B, the promotion hawser of vertical-lift hoist engine 17 connects premise hanging point 21 and rear promotion suspension centre 23, Zhi Houqi respectively
Dynamic vertical-lift hoist engine 17, which hangs steel truss girder segment 11, is raised to predeterminated position；
C, after reaching predeterminated position, the vertical shift hawser 151,161 of fortune beam trolley 15,16 respectively with preceding vertical shift suspension centre 22 and after
Vertical shift suspension centre 24 connects, and pre-tightens vertical shift hawser 151,161, promotes hawser and is detached from premise hanging point 21 and promotes suspension centre 23 afterwards；
D, start fortune beam trolley 15,16, steel truss girder segment 11 is moved forward along vertical shift track 14, when 16 front end of fortune beam trolley is touched
During to the first removable limiter 18, fortune beam trolley 15,16 stops, lifting truck 131,132 vertical shifts to corresponding position, lifting truck
132 connect with premise hanging point 21, and the vertical shift hawser 161 of fortune beam trolley 16 is detached from preceding vertical shift suspension centre 22, removes vertical shift track
The first removable limiter 18 on 14；
E, after removing the first removable limiter 18, fortune beam trolley 15,16 continues to move forward, and lifting truck 132 synchronizes Forward, when
When 16 front end of fortune beam trolley touches the second removable limiter 19, fortune beam trolley 16 is out of service, and fortune beam trolley 15 and promotion are small
Vehicle 132 continues synchronous Forward, when transporting 15 front end of beam trolley and touching the removable limiter 20 of third of 16 rear end of fortune beam trolley, fortune
Beam trolley 15 and lifting truck 132 are simultaneously stopped operation, at this point, lifting truck 131 moves to corresponding position promotes suspension centre with rear
23 connections, the vertical shift hawser 151 of fortune beam trolley 15 is detached from rear vertical shift suspension centre 24, at this point, lifting truck 131,132 moves forward simultaneously
Steel truss girder segment 11 is moved forward into assembled position, after moving to assembled position, lifting truck 131,132 promotes steel truss girder segment simultaneously
11, it is allowed to after assembled, remove the second removable limiter 19 with truss split, the primary assembled process of completion, repeat above-mentioned indulge later
Shifting method step completes the assembly of remaining steel truss girder segment 11.
Aforementioned steel truss girder segment 11 during handling assembly, used pier handling method to carry out handling at auxiliary pier 25, described
The pier handling method crossed be (as shown in Figure 5),
A, interim bracket 26 is set in 25 side of auxiliary pier, interim slideway 27 and pushing tow is set to fill on interim bracket 26
It puts；
B, vertical shift lifting truck 131,132 arrives predeterminated position, and lifting truck 131,132 vertical-lifts treat the steel truss girder of handling
When segment 11 is arrived away from interim 27 top side location 5-10cm of slideway, lifting truck 131,132 continues synchronous Forward until reaching interim
27 top of slideway；
C, lifting truck 131,132 transfers steel truss girder segment 11 to interim slideway 27, during decentralization, lifting truck 131
Lower section speed is less than the lowering velocity of lifting truck 132, and the front beam of steel truss girder segment 11 is made to be contacted with interim slideway 27, releases
Lifting truck 132, thrustor move forward steel truss girder segment 11 along interim slideway 27, and lifting truck 131 synchronizes Forward, until steel
28 front end of diagonal web member of trusses segment 11 is concordant with interim 26 front end of bracket, and later, lifting truck 131 continues to transfer, by steel truss
Girder segment 11 is completely placed on interim slideway 27, releases the connection of lifting truck 131 and steel truss girder segment 11, and by steel truss girder
Segment 11 is fixed temporarily with interim bracket 26.
D, lifting truck 131,132 turns again to initial position, and repeats above-mentioned b, step c by next steel truss girder segment 11
Handling is to interim slideway 27, and the assembly of steel truss girder segment 11 completed and be fixed temporarily on interim slideway 27；After assembly is good,
Through completing the assembly with truss at thrustor vertical shift to truss.
Claims (6)
- A kind of 1. Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment, it is characterised in that：With Sarasota（1）For origin to Both sides carry out steel truss girder segment respectively（11）Assembly, close to Sarasota（1）Steel truss girder segment（11）Using swing shifting method lifting and it is complete Into assembly, after completing assembly, vertical-lift method is used to lift by crane next 1-3 and saves steel truss girder segment（11）Carry out assembled, spelling After the completion of dress, remaining steel truss girder segment is lifted by crane using vertical shift method（11）Complete entire assembled process；The shifting method of swinging is to press Following step carries out,A, in Sarasota（1）Side installation promotes Bailey bracket（2）, and in Sarasota（1）Lower section is installed by first hoist respectively（3）, Two hoist engines（4）, third hoist engine（5）Machine is raised with Volume Four（6）；In Sarasota（1）Bottom end rail（7）Upper installation sliding way（8） And thrustor；B, first hoist（3）With third hoist engine（5）Hoisting rope（31,51）It respectively passes through and promotes Bailey bracket（2）On vertical shift Trolley（9,10）By steel truss girder segment to be lifted（11）It is lifted up；C, when steel truss girder segment（11）It is thus lifted to away from bottom end rail（7）During the 50-100cm of top, vertical shift trolley（9,10）It drives Steel truss girder segment（11）Towards Sarasota（1）Direction slides；D, when steel truss girder segment（11）It is slid onto sliding way（8）During top, vertical shift trolley（9,10）Stop sliding, first hoist （3）With third hoist engine（5）Transfer steel truss girder segment（11）To away from sliding way（8）At the 2-10cm of top, Volume Four is raised at this time Machine（6）Pulling rope（61）Across Sarasota（1）On support pulley（12）With steel truss girder segment（11）Connection, disconnects third later Hoist engine（5）Hoisting rope（51）With steel truss girder segment（11）Connection；E, Volume Four raises machine（6）Gradually pack up pulling rope（61）, while vertical shift trolley（9）Continue sliding and Synchronous Radio hoisting rope （31）, until steel truss girder segment（11）Into sliding way（8）；F, using thrustor by steel truss girder segment（11）Along sliding way（8）Shift predeterminated position onto；The vertical shift method is,A, vertical shift track is set below truss（14）, and in vertical shift track（14）Upper setting fortune beam trolley（15、16）, in truss Upper installation vertical-lift hoist engine（17）, in vertical shift track（14）The first removable limiter of upper installation（18）, the first removable limiting Device（18）Front sets the second removable limiter（19）, in fortune beam trolley（16）Rear end installation the removable limiter of third（20）； In the steel truss girder segment for treating handling（11）On set gradually premise hanging point（21）, preceding vertical shift suspension centre（22）, promote suspension centre afterwards （23）With rear vertical shift suspension centre（24）；B, vertical-lift hoist engine（17）Promotion hawser connect premise hanging point respectively（21）With rear promotion suspension centre（23）, later Start vertical-lift hoist engine（17）By steel truss girder segment（11）It hangs and is raised to predeterminated position；C, after reaching predeterminated position, beam trolley is transported（15、16）Vertical shift hawser（151、161）Respectively with preceding vertical shift suspension centre（22）With Vertical shift suspension centre afterwards（24）Connection pre-tightens vertical shift hawser（151、161）, promote hawser and be detached from premise hanging point（21）It is hung with rear promotion Point（23）；D, start fortune beam trolley（15、16）, by steel truss girder segment（11）Along vertical shift track（14）Forward, when fortune beam trolley（16）Before Encounter the first removable limiter in end（18）When, transport beam trolley（15、16）Stop, lifting truck（131、132）Vertical shift is to corresponding positions It puts, lifting truck（132）With premise hanging point（21）Beam trolley is transported in connection（16）Vertical shift hawser（161）With preceding vertical shift suspension centre （22）It is detached from, removes vertical shift track（14）On the first removable limiter（18）；E, the first removable limiter is removed（18）Afterwards, beam trolley is transported（15、16）Continue to move forward, lifting truck（132）Synchronous Forward, When fortune beam trolley（16）Front end touches the second removable limiter（19）When, transport beam trolley（16）It is out of service, transport beam trolley （15）And lifting truck（132）Continue synchronous Forward, when fortune beam trolley（15）Front end touches fortune beam trolley（16）The of rear end Three removable limiters（20）When, transport beam trolley（15）And lifting truck（132）Operation is simultaneously stopped, at this point, lifting truck（131） It moves to corresponding position and promotes suspension centre with rear（23）Beam trolley is transported in connection（15）Vertical shift hawser（151）With rear vertical shift suspension centre （24）It is detached from, at this point, lifting truck（131、132）It is moved forward simultaneously by steel truss girder segment（11）Assembled position is moved forward to, moves to spelling After holding position, lifting truck（131、132）Promote steel truss girder segment simultaneously（11）, it is allowed to and truss split, the primary assembly of completion Process after assembled, removes the second removable limiter（19）, above-mentioned vertical shift method step is repeated later, completes remaining steel truss girder section Section（11）Assembly.
- 2. the Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment according to claim 1, it is characterised in that：It is described Step c be, when steel truss girder segment（11）It is thus lifted to away from bottom end rail（7）During the 50-100cm of top, second hoist（4）Lead Messenger（41）With steel truss girder segment（11）It connects, later vertical shift trolley（9,10）Drive steel truss girder segment（11）Towards Sarasota（1）Side To sliding, second hoist（4）Synchronize the guide rope that lengthens（41）；The step d is, when steel truss girder segment（11）It is slid onto Slideway（8）During top, vertical shift trolley（9,10）Stop sliding, later, disconnect guide rope（41）With steel truss girder segment（11）Company It connects, first hoist（3）With third hoist engine（5）Transfer steel truss girder segment（11）To away from sliding way（8）At the 2-10cm of top, this When Volume Four raise machine（6）Pulling rope（61）Across Sarasota（1）Support pulley（12）With steel truss girder segment（11）Connection, later Disconnect third hoist engine（5）Hoisting rope（51）With steel truss girder segment（11）Connection.
- 3. the Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment according to claim 1, it is characterised in that：It is described Vertical-lift method be to carry out in the steps below,A, after the completion of the lifting assembly of shifting method is swung, erection crane is installed on truss（13）, use erection crane（13）On carry Rise trolley（131,132）Vertical-lift steel truss girder segment to be lifted（11）；B, when steel truss girder segment（11）When being thus lifted to truss level, vertical shift lifting truck（131,132）And complete and truss Assembly.
- 4. the Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment according to claim 3, it is characterised in that：It is described In step b, steel truss girder segment（11）During with truss level, steel truss girder segment（11）The gap of 10-50cm is reserved between truss.
- 5. the Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment according to claim 1, it is characterised in that：It is described Steel truss girder segment（11）In auxiliary pier（25）When locating handling assembly, pier handling method was used to carry out handling, the pier of crossing is hung Fortune method is to carry out in the steps below,A, in auxiliary pier（25）Side sets interim bracket（26）, in interim bracket（26）The upper interim slideway of setting（27）And pushing tow Device；B, vertical shift lifting truck（131,132）To predeterminated position, lifting truck（131,132）The steel truss girder of handling is treated in vertical-lift Segment（11）To away from interim slideway（27）During top side location 5-10cm, lifting truck（131,132）Continue synchronous Forward until arriving Up to interim slideway（27）Top；C, lifting truck（131,132）Transfer steel truss girder segment（11）To interim slideway（27）On, release lifting truck（131, 132）With by steel truss girder segment（11）Connection, thrustor is by steel truss girder segment（11）Shift steel truss girder segment onto（11）Oblique abdomen Bar（28）Front end and interim bracket（26）Behind the concordant position in front end, by steel truss girder segment（11）With with interim bracket（26）Temporarily It is fixed；D, lifting truck（131,132）It turns again to initial position, and repeats above-mentioned b, step c by next steel truss girder segment（11） Handling is to interim slideway（27）, and in interim slideway（27）Upper completion and the steel truss girder segment being fixed temporarily（11）Assembly；It spells After installing, through completing the assembly with truss at thrustor vertical shift to truss.
- 6. the Integral lifting method of steel truss girder cable-stayed bridge steel truss girder segment according to claim 5, it is characterised in that：It is described Step c be lifting truck（131,132）Transfer steel truss girder segment（11）To interim slideway（27）On, make steel truss girder segment （11）Front beam and interim slideway（27）Contact releases lifting truck（132）, thrustor is by steel truss girder segment（11）Edge is faced When slideway（27）Forward, lifting truck（131）Synchronous Forward, until steel truss girder segment（11）Front end and interim bracket（26）Front end Concordantly, later, lifting truck（131）Continue to transfer, by steel truss girder segment（11）It is completely placed in interim slideway（27）On, it releases Lifting truck（131）With steel truss girder segment（11）Connection, and by steel truss girder segment（11）With interim bracket（26）It is fixed temporarily.
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