CN107245957A - A kind of method and apparatus of aerial trackless erecting suspension bridge stiff girder - Google Patents

A kind of method and apparatus of aerial trackless erecting suspension bridge stiff girder Download PDF

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Publication number
CN107245957A
CN107245957A CN201710702155.3A CN201710702155A CN107245957A CN 107245957 A CN107245957 A CN 107245957A CN 201710702155 A CN201710702155 A CN 201710702155A CN 107245957 A CN107245957 A CN 107245957A
Authority
CN
China
Prior art keywords
stiff girder
outrigger
rope
girder
fortune beam
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710702155.3A
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Chinese (zh)
Inventor
杨恒
胡建华
朱立山
闫勇
杨晓
戴黎霞
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Hunan Road & Bridge Construction Group Co Ltd
Original Assignee
Hunan Road & Bridge Construction Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Road & Bridge Construction Group Co Ltd filed Critical Hunan Road & Bridge Construction Group Co Ltd
Priority to CN201710702155.3A priority Critical patent/CN107245957A/en
Publication of CN107245957A publication Critical patent/CN107245957A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00Suspension or cable-stayed bridges
    • E01D11/02Suspension bridges

Abstract

The invention discloses a kind of method and apparatus of aerial trackless erecting suspension bridge stiff girder, its method comprises the following steps:First, hang some into horizontally arranged outrigger temporarily by hoist cable on main push-towing rope, set with the two ends of outrigger and deck unit erection gantry and stiff girder tackling system are set on mobile fortune beam coaster, main push-towing rope;2nd, the stiff girder at interim suspension centre is lifted to after the height of fortune beam coaster, stiff girder be placed on the fortune beam coaster driven into by stiff girder tackling system;3rd, stiff girder is transported to the assembled position of stiff girder by fortune beam coaster, is accepted by deck unit erection gantry and slings stiff girder, removes fortune beam coaster, and stiff girder and the stiff girder set up progress is assembled, and deck unit erection gantry runs to the assembled position of next stiff girder;4th, repeat step two, three, one by one assembled stiff girder.The characteristics of present invention economical good, large carrying capacity, transport capacity can be more than 400 tons, and traveling is more smoothed out.

Description

A kind of method and apparatus of aerial trackless erecting suspension bridge stiff girder
Art
The invention belongs to suspension bridge construction method and apparatus, and in particular to a kind of method of aerial trackless erecting suspension bridge stiff girder And equipment.
Background technology
At present, the known common method across the whole section steel truss stiff girder of the suspension bridge shoal position of rivers erection has stack Bridge method, sets up the method rail rope sliding method of whole section steel truss stiff girder in the suspension bridge gamut across valley, and cable is carried and hung The problem that machine load walking need to be captured is also very big.Trestle method needs 2 rows support stake and 2 rows to bear stiff girder and slide in the above Beam, very big needed for steel and equipment, if meeting the high situation of riverbed basement rock intensity, the installation of support stake is difficult processing.Rail rope Sliding method can effectively solve the problem that the installation question of 2 kinds of bridge type stiff girders of the above, but rail rope and its anchoring are costly, and stiff girder section When section is heavier, beam car dipping and heaving is than larger.
The content of the invention
It is an object of the invention to provide the aerial trackless erecting suspension bridge stiff girder of a kind of good economy performance, large carrying capacity Method and apparatus.
Realize that the technical scheme that the object of the invention is used is as follows:
The method for the aerial trackless erecting suspension bridge stiff girder that the present invention is provided, comprises the following steps:
First, hang some into horizontally arranged outrigger temporarily along suspension bridge direction by hoist cable on main push-towing rope, with the two ends of outrigger The deck unit erection gantry that sets and can be moved along main push-towing rope on the fortune beam coaster for being hooked on and being moved on outrigger, main push-towing rope is set as support, simultaneously The anchoring temporarily stiff girder tackling system on the main push-towing rope above interim suspension centre;
2nd, the stiff girder at interim suspension centre is lifted to after the height of fortune beam coaster by stiff girder tackling system, by stiff girder It is placed on the fortune beam coaster driven into;
3rd, stiff girder is transported to the assembled position of stiff girder by fortune beam coaster, is accepted by deck unit erection gantry and slings stiff girder, removes fortune Beam coaster, carries out assembly, deck unit erection gantry runs to the assembly of next stiff girder by stiff girder and the stiff girder set up Position;
4th, repeat step two, three, one by one assembled stiff girder.
In the step 3, the deck unit erection gantry is accepted and sling after stiff girder, and stiff girder is hung to below installation site about At 10cm, then fortune beam coaster is removed, the outrigger of this section is disassembled on stiff girder from hoist cable, lifting again is put more energy into Beam, and the stiff girder is connected with the hoist cable after dismounting outrigger, then stiff girder and the stiff girder set up are subjected to assembly.
The equipment for the aerial trackless erecting suspension bridge stiff girder that the present invention is provided, including one group be suspended on main push-towing rope by hoist cable Outside upper and stretching sling of suspension bridge face some outriggers are hooked on along suspension bridge direction into horizontally arranged outrigger, by longeron Both ends be pulled in by reciprocating-type tractor system moved on outrigger into groove structure fortune beam coaster, be suspended on main push-towing rope plus Strength beam tackling system, move along main push-towing rope the deck unit erection gantry for lifting and transporting stiff girder to assembled position.
The outrigger is fixed by a set of steel wire rope fixed system, and the both ends of outrigger are provided with plain-barreled roll device, the fortune beam Coaster is supported on by its longeron on the plain-barreled roll device of 2~3 outrigger ends.
The steel wire rope fixed system includes connecting the upper edge of the outrigger end and guide line and the positioning of lower edge respectively Rope, the end of the guide line is fixed on main push-towing rope by anchoringwire folder, and guide line is provided with guide line turning point gusset plate, leads It is suspended in rope balancing weight on guide line turning point gusset plate;The end of the positioning rope is fixed on main push-towing rope by anchoringwire folder On, positioning rope is suspended on positioning rope turning point gusset plate provided with positioning rope turning point gusset plate, positioning rope balancing weight.
The stiff girder tackling system is included by the assembly pulley of interim cord clip and steel wire hang on main push-towing rope, assembly pulley Stiff girder is lifted by crane by shoulder pole girder and hoisting wirerope, the haulage cable of hauling block group is connected with the hoist engine on bridge tower top.
The longeron bottom of the fortune beam coaster is provided with vertical roller bearing pair and is engaged with the guide line so that fortune beam is slided Car is moved under the guiding of guide line on outrigger.
Beneficial effect
1st, fortune beam coaster by longeron, put more energy into girder segment by the mobile transport on outrigger, transports equivalent to one section movement of longeron of beam coaster Track girder, have the plain-barreled roll device supporting on 2~3 pairs of outrigger two ends below longeron all the time, using this mode need not whole process lay It need not climb during track and erection crossbeam, fortune beam coaster traveling, it is not necessary to powerful power, save the energy.
2nd, outrigger is used as supporter by the use of permanent hoist cable, it is not necessary to which other expend the support of huge supporting member such as trestle Stake, hoist cable is tensile member, the problem of in the absence of strut buckling, is taken root on main push-towing rope, saving expense, stably, reliably.
3rd, outrigger both ends are stretched out outside hoist cable face, and plain-barreled roll device is placed on it, and close to hoist cable, the mechanics of such outrigger is special Property be that shearing is big, moment of flexure is small, it is only necessary in outrigger and hoist cable junction(That is two ends)The strong short beam of shear resistance is made, in outrigger This conventional repeatable approved product connection two ends short beam utilized of middle part Bailey bracket, because moment of flexure is small, Bailey bracket consumption It is few, and the crossbeam that trestle is used to lay track then needs a large amount of Bailey brackets.
The present invention sets up stiff girder using the above method and equipment, the characteristics of economical good, large carrying capacity, transport Ability can be more than 400 tons, and traveling is smoothed out very much, can all implement across valley, across the suspension bridges of rivers.
Technical scheme is further illustrated below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is in interim hoisting point position to lift by crane the schematic diagram of stiff girder in the present invention.
Fig. 2 is that stiff girder is placed on to the supratrochlear schematic diagram of fortune beam driven into the present invention.
Fig. 3 is that fortune beam coaster transports stiff girder to the schematic diagram of assembled position in the present invention.
Fig. 4 is partial enlarged drawing at A in Fig. 3.
Fig. 5 is that deck unit erection gantry slings stiff girder and removes the schematic diagram of fortune beam coaster in the present invention.
Fig. 6 is partial enlarged drawing at B in Fig. 5.
Fig. 7 is that outrigger, fixed system, the schematic diagram of trailer system near bridge tower are arranged in the present invention.
Fig. 8 is the schematic diagram of guide line in reciprocating-type tractor system and steel wire rope fixed system in the present invention.
Fig. 9 is the schematic diagram for positioning rope in the present invention in steel wire rope fixed system.
Figure 10 is that the schematic diagram that remaining outrigger is installed after fortune beam coaster is installed in the present invention.
Figure 11 is the structural representation of fortune beam coaster in the present invention.
Figure 12 is partial enlarged drawing at C in Figure 11.
Figure 13 is the schematic diagram of fortune beam coaster guiding in invention.
In figure, 1. outriggers, 101. ends, 102. outrigger tie-beams, 2. plain-barreled roll devices, 3. anchoring cord clips, 4. Guide line, 5. positioning ropes, 6. guide line steering node plates, 7. positioning rope steering node plates, 8. guide line balancing weights, 9. Position rope balancing weight, 10. fortune beam coasters, 1001. " C " shape hook truss, 1002. longerons, 1003. longeron main truss pieces, 1004. Tie-beam, 11. pull ropes, 12. fixed pulleys, 13. deck unit erection gantries, 1301. pull system, 1302. interim cord clips, 14. plus Strength beam tackling system, 1401. interim cord clips, 1402. steel wire ropes, 1403. haulage cables, 1404. assembly pulleys, 1405. Shoulder pole girder, 1406. hoisting wireropes, 15. main push-towing ropes, 16. hoist cables, 17. stiff girders, 18. bridge towers, 19. roller bearings, a. fortune Beam ship.
Embodiment
As shown in figure 1, the equipment of the aerial trackless erecting suspension bridge stiff girder of the present invention includes being fixed on two main push-towing ropes 15 The hoist cable 16 in sling of suspension bridge face is respectively constituted, one group is suspended on hoist cable 16 and outside the stretching sling of suspension bridge face of two ends temporarily The outrigger 1 that is arranged along suspension bridge direction into horizontal parallel, some choose be hooked on by the longeron 1002 set along suspension bridge direction The both ends 101 of beam 1 be pulled in by reciprocating-type tractor system moved forward and backward on outrigger 1 into groove structure fortune beam coaster 10, The stiff girder tackling system 14 that is suspended on main push-towing rope 15, move along main push-towing rope 15 and to lift and transport stiff girder and carried to the cable of assembled position Loop wheel machine 13.
As Figure 1 and Figure 4, the outrigger 1 is connected by the outrigger of the end 101 of two truss structures and connection both ends 101 Connect beam 102 to be combined into, the end 101 of outrigger 1 is welded by shaped steel, and length is short, middle outrigger tie-beam 102 is spliced by Bailey bracket Into, account for outrigger 1 composition major part;The both ends 101 of outrigger 1 are equipped with plain-barreled roll device 2, and the installation site of plain-barreled roll device 2 is leaned on Nearly hoist cable 16(Supporting-point), stiff girder 17 is reduced to greatest extent and transports the moment of flexure that the gravity of beam coaster 10 is produced to outrigger 1, The bending resistance that so outrigger 1 need not be stronger, while the end 101 of outrigger 1 is welded by stronger form steel, can effectively bear lotus Carry, and the end 101 of outrigger only accounts for the very little part of outrigger 1, above structure is for reducing the material usages of numerous outriggers 1 to closing weight Will, Bailey bracket belongs to the approved product that bending resistance is strong, shear resistance is relatively weak, is well suited for a large amount of reuses, it is to avoid compared with Many disposable inputs;Outrigger 1 is fixed by a set of steel wire rope fixed system and hung from above in the anchoring cord clip 3 on main push-towing rope 15 On, the steel wire rope fixed system as shown in Fig. 1, Fig. 6, Fig. 8, Fig. 9, including is anchored at the anchor for being installed on two main push-towing ropes 15 respectively Gu two groups of guide lines 4 and positioning rope 5 on cord clip 3, every group of guide line 4 and positioning rope 5 connect an end on all outriggers 1 respectively The upper edge in portion 101 and lower edge, guide line steering node is respectively mounted on the guide line 4 and positioning rope 5 of anchoring cord clip 3 obliquely downward Plate 6 and positioning rope steering node plate 7, hanging container formula is distinguished on guide line steering node plate 6 and positioning rope steering node plate 7 Guide line balancing weight 8 and positioning rope balancing weight 9, toward balancing weight in the securable guide line 4 of water filling and position rope 5,3 times can be produced The Horizontal Tension of balancing weight weight, with fixed each row's outrigger 1, the effect of steel wire rope fixed system is to prevent outrigger 1 from toppling, shaking Dynamic and resistance fortune beam coaster 10 impact;
As shown in Fig. 1, Figure 11, Figure 12, fortune beam coaster 10 is overall to be in into groove structure, and upward aperture efficiency stiff girder 17 is wide, fortune Stiff girder 17 in beam coaster 10 can up be lifted with accessible;Transporting beam coaster 10 includes " C " shape hook truss 1001 of both sides, connects The tie-beam 1004 of the bottom of two " C " shape hook truss 1001 is connect, the top of the longeron 1002 and each " C " shape hook truss 1001 connects Integrally, the inner side of longeron 1002 is provided with main truss piece 1003, and fortune beam coaster 10 is hooked on the end of outrigger 1 by main truss piece 1003 On 101 plain-barreled roll device 2, the longeron 1002 of fortune beam coaster 10 is interval across 2 beam sections of stiff girder 17, and fortune beam coaster 10 is by vertical When beam 1002 is slided on plain-barreled roll device 2, supported all the time by 2~3 pairs of plain-barreled roll devices 2, need not whole laid rail using this mode Road and erection crossbeam;Fortune beam coaster longeron main truss piece 1003 belongs to rigid track, not like flexible rail rope, and fortune beam coaster 10 is run over It need not climb in journey, rise and fall small, it is not necessary to powerful traction power, save the energy, combine rigid track and flexible rail Advantage;The tie-beam 1004 of the lower end of " C " shape hook truss 1001 of connection fortune beam coaster both sides is spliced into using Bailey bracket, because The shear resistance of " C " shape hook truss 1001 is strong, and the gravity of stiff girder 17 is mainly applied to the bottom of " C " shape hook truss 1001 of fortune beam coaster Portion, Bailey bracket is not subject to big load;The front and back end lower edge of longeron 1002 is fabricated to the arc upwarped, because hoist cable 16 is grown, A small amount of elongation is had under load action, fortune beam coaster 10 can sink, the arc of the front and back end of fortune beam coaster longeron 1002 Shape section can be such that fortune beam coaster 10 smoothly transits on plain-barreled roll device 2.
As shown in Fig. 1, Fig. 6, Fig. 8, the reciprocating-type tractor system that traction fortune beam coaster 10 is moved forward and backward includes filling with traction The pull rope 11 and fixed pulley 12 of connection are put, fixed pulley 12 is placed on guide line steering node plate 6, and pull rope 11, which is bypassed, determines cunning Wheel 12 is rotarily formed closed loop, and draw-gear driving pull rope 11 can make fortune beam coaster 10 reciprocal in the interim hoisting point position of stiff girder 17 Between the assembled position of stiff girder 17.Because the tractive force that traction fortune beam coaster 10 is put on pull rope 11 is less than guide line 4 Tensile force, the fixed pulley 12 for steering is arranged, and effectively make use of existing construction equipment.
As shown in Fig. 1, Fig. 6, Figure 10, Figure 13, guide line 4 also acts as the effect being oriented to fortune beam coaster 10.Slided in fortune beam The bottom of longeron 1002 of car is provided with 3 pairs of vertical roller bearings 19, and guide line 4 is passed through in the middle of each pair roller bearing 19(Referring to Figure 13), Guide line 4 after tensioning can form certain rigidity, and fortune beam coaster 10 will be oriented to by guide line 4 when travelling, and especially be filled in plain-barreled roll 2 near zones are put, the rigidity of guide line 4 is bigger, fortune beam coaster 10 can be directed past plain-barreled roll device 2 well.
As shown in Figure 1, Figure 7 shows, the stiff girder tackling system 14 includes being fixed on main push-towing rope 15 by interim cord clip 1401 Steel wire rope 1402, be connected with steel wire rope 1402 top sheave group 1404, by haulage cable 1403 and top sheave group 1404 The lower sheave group 1404 ' of connection, the shoulder pole girder 1405 being connected with lower sheave group 1404 ', the hoisting steel being located on shoulder pole girder 1405 Cord 1406, haulage cable 601 is connected with the hoist engine at the top of bridge tower 18;The deck unit erection gantry 13 passes through interim cord clip 1302 It is fixed on the system that pulls 1301 on main push-towing rope 3.Deck unit erection gantry 13 uses approved product, and it is that lifting fortune beam coaster 8 is shipped that it, which is acted on, Girder segment 1 of putting more energy into, in order to this section install.
Present device installation process is as shown in Fig. 1, Fig. 7-Figure 10, and most of outrigger 1 can be transported with fortune beam coaster 10 Installed to installation site, 3 groups of outriggers 1 at bridge tower 18 are first installed, then the fixed system of outrigger 1 is installed:Anchor cord clip 3, lead To rope steering node plate 6 and positioning rope steering node plate 7, guide line 4 and positioning rope 5, guide line balancing weight 8 and positioning Suo Peichong Block 9, balancing weight is the water tank surrounded with steel plate, now only pours into 1/2 water, installs fortune beam coaster 10 by bridge tower 18, and The pull rope 11 of good luck beam coaster 10 is installed, the 4th group of outrigger 1 is hung over into the front end of fortune beam coaster 10, driving fortune beam coaster 10 towards across Middle traveling, to the position of the 4th row's hoist cable 16, the 4th group of outrigger 1 is arranged on the 4th row's hoist cable 16, and so on, installed all Outrigger 1, adjusts the position of all outriggers 1, toward guide line balancing weight 8 and positioning rope balancing weight 9 in pour into remaining 1/2 Water, completes guide line 4, positions the tensioning of rope 5, and all outriggers 1 and guide line 4, positioning rope 5 are fastened.
The inventive method is as follows:
First, as shown in figure 1, transporting outward the place that beam ship a can drive into shoal, interim suspension centre is set, lifts by crane and puts more energy into from ship a Beam 17, sets up the position for being set to closure segment herein, and for the suspension bridge across valley, typically transports stiff girder from end of the bridge toward span centre 17;Some outriggers 1 arranged into horizontal parallel are hung by hoist cable 16 temporarily along the assembled direction of stiff girder on main push-towing rope 15, fortune beam is slided Car 10 is hooked on outrigger 1 by the both ends 101 of longeron 1002 using some outriggers 1 as support, and being set on main push-towing rope 15 can edge The deck unit erection gantry 13 that main push-towing rope 15 is moved, while anchoring temporarily stiff girder tackling system 14 on main push-towing rope 15 above interim suspension centre;
2nd, as shown in Figure 1 and Figure 2, the stiff girder 17 at interim suspension centre is lifted by crane by stiff girder tackling system 14;During lifting, shoulder pole Hoisting wirerope 1406 on beam 1405 fixes stiff girder 17, and hoist engine drives the lifting lower sheave group of haulage cable 1403 1404 ' with shoulder pole girder 1405, and after the height that stiff girder 17 is lifted to fortune beam coaster 10 from ship a, fortune beam coaster 8 is reciprocal The position of stiff girder 17 is driven under the traction of formula trailer system pull rope 11, stiff girder 17 is transferred, fortune beam coaster 10 is fallen within It is interior;
3rd, as shown in Fig. 3, Fig. 5, stiff girder 17 is transported to assembled position by mobile fortune beam coaster 10 from interim hoisting point position, by Deck unit erection gantry 13, which is accepted, slings stiff girder 17 to about 10cm places below installation site, removes and transports beam coaster 10, by choosing for this section Beam 1 is disassembled from hoist cable 16, is fallen on stiff girder 17, and stiff girder 17 is lifted again, by the stiff girder 17 and dismounting outrigger 1 Hoist cable 16 afterwards is connected, then stiff girder 17 and the stiff girder set up are carried out into assembly, is carried cable by pulling system 1301 Loop wheel machine 13 is moved to the assembled position waiting of next beam section;
4th, repeat step two, three, one by one assembled complete stiff girder 17.
The inventive method good economy performance, strong adaptability, fortune beam process safety, steady, quick, sling length near bridge tower Greatly, elongation is maximum, but is at most also no more than 10cm, that is, transports beam coaster in fortune beam process mesorelief not over 10cm, be compared with Smoothly, be conducive to improving fortune beam speed.The present invention is suitable for that stiff girder can not be transported to what vertical lifting under bridge was installed Situation, such as the suspension bridge shoal position across rivers, across valley suspension bridge.

Claims (7)

1. a kind of method of aerial trackless erecting suspension bridge stiff girder, it is characterized in that comprising the following steps:
First, hang some into horizontally arranged outrigger temporarily along suspension bridge direction by hoist cable on main push-towing rope, with the two ends of outrigger The deck unit erection gantry that sets and can be moved along main push-towing rope on the fortune beam coaster for being hooked on and being moved on outrigger, main push-towing rope is set as support, simultaneously The anchoring temporarily stiff girder tackling system on the main push-towing rope above interim suspension centre;
2nd, the stiff girder at interim suspension centre is lifted to after the height of fortune beam coaster by stiff girder tackling system, by stiff girder It is placed on the fortune beam coaster driven into;
3rd, stiff girder is transported to the assembled position of stiff girder by fortune beam coaster, is accepted by deck unit erection gantry and slings stiff girder, removes fortune Beam coaster, carries out assembly, deck unit erection gantry runs to the assembly of next stiff girder by stiff girder and the stiff girder set up Position;
4th, repeat step two, three, one by one assembled stiff girder.
2. the method for aerial trackless erecting suspension bridge stiff girder according to claim 1, it is characterized in that in the step 3, The deck unit erection gantry is accepted and sling after stiff girder, and stiff girder is hung into about 10cm below installation site locates, then is removed and transported beam coaster, The outrigger of this section is disassembled on stiff girder from hoist cable, stiff girder is lifted again, and by the stiff girder with dismantling Hoist cable after outrigger is connected, then stiff girder and the stiff girder set up are carried out into assembly.
3. a kind of equipment of aerial trackless erecting suspension bridge stiff girder, it is characterized in that being suspended on including one group by hoist cable on main push-towing rope And stretch out outside sling of suspension bridge face along suspension bridge direction into horizontally arranged outrigger, the two of some outriggers are hooked on by longeron End be pulled in by reciprocating-type tractor system moved on outrigger into groove structure fortune beam coaster, be suspended on putting more energy on main push-towing rope Beam tackling system, move along main push-towing rope the deck unit erection gantry for lifting and transporting stiff girder to assembled position.
4. the equipment of aerial trackless erecting suspension bridge stiff girder according to claim 3, it is characterized in that the outrigger passes through A set of steel wire rope fixed system is fixed, and the both ends of outrigger are provided with plain-barreled roll device, and the fortune beam coaster is supported on 2 by its longeron On the plain-barreled roll device of~3 outrigger ends.
5. the equipment of aerial trackless erecting suspension bridge stiff girder according to claim 4, it is characterized in that the steel wire rope is solid Determining system includes connecting the upper edge of the outrigger end and the guide line of lower edge and positioning rope respectively, and the end of the guide line leads to Cross anchoringwire folder to be fixed on main push-towing rope, guide line is provided with guide line turning point gusset plate, and guide line balancing weight is suspended in guiding On rope turning point gusset plate;The end of the positioning rope is fixed on main push-towing rope by anchoringwire folder, and positioning rope is provided with positioning rope Turning point gusset plate, positioning rope balancing weight is suspended on positioning rope turning point gusset plate.
6. the equipment of aerial trackless erecting suspension bridge stiff girder according to claim 5, it is characterized in that the stiff girder rises Crane system is included by the assembly pulley of interim cord clip and steel wire hang on main push-towing rope, and assembly pulley passes through shoulder pole girder and lifting steel wire Rope lifting stiff girder, the haulage cable of hauling block group is connected with the hoist engine on bridge tower top.
7. the equipment of the aerial trackless erecting suspension bridge stiff girder according to claim 5 or 6, it is characterized in that the fortune beam is slided The longeron bottom of car is provided with vertical roller bearing pair and is engaged with the guide line so that fortune beam coaster is under the guiding of guide line Moved on outrigger.
CN201710702155.3A 2017-08-16 2017-08-16 A kind of method and apparatus of aerial trackless erecting suspension bridge stiff girder Pending CN107245957A (en)

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JPS49120356A (en) * 1973-03-27 1974-11-18
JPS537062A (en) * 1976-07-08 1978-01-23 Mitsui Eng & Shipbuild Co Ltd Lifting crane for installing reinforcement beam blocks of large suspension bridge
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