CN106988227A - A kind of suspension bridge steel truss girder rotary body device and construction method - Google Patents
A kind of suspension bridge steel truss girder rotary body device and construction method Download PDFInfo
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- CN106988227A CN106988227A CN201710328927.1A CN201710328927A CN106988227A CN 106988227 A CN106988227 A CN 106988227A CN 201710328927 A CN201710328927 A CN 201710328927A CN 106988227 A CN106988227 A CN 106988227A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 87
- 239000010959 steel Substances 0.000 title claims abstract description 87
- 239000000725 suspension Substances 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 7
- 210000005069 ears Anatomy 0.000 claims description 5
- 101100366060 Caenorhabditis elegans snap-29 gene Proteins 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 238000007665 sagging Methods 0.000 claims description 4
- 241000282326 Felis catus Species 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 230000032258 transport Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000007596 consolidation process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 208000031251 Ear abrasion Diseases 0.000 description 1
- 244000261422 Lysimachia clethroides Species 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a kind of suspension bridge steel truss girder rotary body device and construction method, the main interim anchor ear and two assembly pulleys being separately mounted to including two hoist engines, two on the main push-towing rope of end bay side two, interim anchor ear is connected by shackle and connecting rope with assembly pulley fixed pulley, assembly pulley movable pulley is connected by buckle rotation rope, rotation rope is connected by buckle lifting rope, controls assembly pulley movable pulley to lift by hoist engine pull rope；During rotator construction, steel truss girder is connected by lifting rope, manually promotes it to be rotated by 90 ° after first steel truss girder has been adjusted, then put back on beam car, be transported to installation site lifting.
Description
Technical field
The invention belongs to suspension bridge steel truss girder Hoisting Construction Technology field, and in particular to one kind transports steel truss girder on bridge
When, because steel truss girder it is wide impassable, it is necessary to by steel truss girder carry out swivel 90 ° so as to the steel truss girder rotary body device of transport, and
Construction method.
Background technology
In the existing suspension bridge bridge construction without Navigation capacity, steel truss girder is passed through from the consolidation shed on bank with beam car
Cross end bay and be transported to installation site lifting.Because two main push-towing ropes of the end bay side at bank are highly less than beam car height, and two lead
The spacing of cable again be less than steel truss girder direction across bridge length, if by steel truss girder on beam car direction across bridge place, steel truss girder without
Method passes through between two main push-towing ropes；And steel truss girder indulges bridge and is less than two main push-towing rope spacing to width, it can pass through between two main push-towing ropes, therefore
Steel truss girder is from consolidation shed to end bay in the transportation of section, and steel truss girder is all vertical bridge on beam car to placement.Steel truss girder quilt
When transporting on end bay close to bridge tower position, end bay main push-towing rope height herein loads the fortune beam of steel truss girder higher than beam car height
Car can pass through below main push-towing rope, therefore here be rotated by 90 ° the steel truss girder on beam car, be changed to direction across bridge placement, then transport
To the lifting of steel truss girder installation site.Said process is the rotator construction in suspension bridge steel truss girder installation procedure.
At present, during suspension bridge steel truss girder rotator construction, a kind of method is that first steel truss girder is hung oneself from beam car using loop wheel machine
Rise, put back to again on beam car after turning 90 ° in the air；Or rotating device is set on beam car, steel truss girder is turned
Construction.Carry out twist in the air using loop wheel machine, not only need on end bay it is extra large-scale crane is set, loop wheel machine operation is required also compared with
Steel truss girder swivel speed, dynamics are all difficult to control during height, and swivel, there is potential safety hazard；Rotation is set on beam car
Rotary device, the complexity for becoming beam car structure, equipment cost is not only resulted in and is increased, and swivel operational sequence is cumbersome, swivel consumption
When it is longer, efficiency of construction is relatively low.
The content of the invention
The purpose of the present invention is the above mentioned problem existed for current suspension bridge steel truss girder rotator construction, proposes a kind of suspension cable
The rotary body device and construction method of bridge steel truss girder, to improve swivel security performance and save construction cost.
To achieve the above object, the invention provides a kind of suspension bridge steel truss girder rotary body device, it is characterised in that：Main bag
Include two hoist engines, two the interim anchor ears and two assembly pulleys that are separately mounted on the main push-towing rope of end bay side two, it is each interim to embrace
Bind round bottom and be provided with hanger, and the first shackle is connected by hanger, the first shackle connects the second shackle, the second shackle by connecting rope
Connect the fixed pulley of an assembly pulley；Two hoist engines are located at the bridge floor both sides below two end bay main push-towing ropes respectively, every hoist engine
Pull rope connects the fixed pulley and movable pulley of an assembly pulley；The movable pulley bottom of two assembly pulleys is equipped with suspension hook, and passes through one
The movable pulley suspension hook of two assembly pulleys is bolted together by suspension hook bolt rope, the suspension hook bolt rope lower section the 3rd shackle of connection, the
Three shackles pass through rotation rope the 4th shackle of connection.
For achieving the above object, the present invention also provides a kind of suspension bridge steel truss girder rotation swivel construction method, and its feature exists
In comprising the following steps：
(1) the bridge floor both sides below end bay main push-towing rope set two hoist engines；
(2) two interim anchor ears are separately mounted to end bay on two main push-towing ropes at bridge tower, each interim anchor ear bottom
Hanger connect first shackle respectively, be connected with a connecting rope one end with the first shackle, the connecting rope other end is sagging to be passed through
Second shackle is connected after cat road wire side below main push-towing rope；
(3) two the second shackles respectively connect an assembly pulley, and the pull rope of two hoist engines connects determining for an assembly pulley respectively
Pulley and movable pulley；
(4) suspension hook of the movable pulley bottom of two assembly pulleys is bolted together with suspension hook bolt rope, suspension hook bolt rope bottom
Portion connects the 3rd shackle；One rotation rope one end is connected with the 3rd shackle, the rotation rope other end is freely sagging and connection the 4th is unloaded
Button；
(5) steel truss girder to be turned is transported on end bay bridge floor, below assembly pulley using flat car for transport of sills；Unload to buckle the 4th and wear
Two lifting ropes are inserted, the lower boom of the two ends of every lifting rope respectively with steel truss girder to be turned is connected firmly；
(6) while starting two hoist engines, steel truss girder is lifted by assembly pulley, treats that flat car for transport of sills 10 is left in steel truss girder bottom
Stop hoist engine after more than centimetre；
(7) it is artificial to promote steel truss girder to rotate, it is slowly helped steady after quarter body turn；
(8) steel truss girder is slowly transferred while starting two hoist engines, after steel truss girder is put surely on flat car for transport of sills, released
Lifting rope, startup flat car for transport of sills moves ahead is transported to installation site by the steel truss girder after swivel.
Fixed pulley is fixed on below main push-towing rope by the present invention using interim anchor ear, is connected into two movable pulleys using steel wire rope,
Rotation rope is hung under movable pulley, after after steel truss girder lift-off beam car, realizes that steel truss girder turns on the bridge floor of end bay side by artificial promotion
Body.The present invention makes construction equipment without extra, and used equipment is that job site early stage is used, and can be taken on the spot
Material, compared with conventional method, has saved the expense of loop wheel machine and rotating device, has reduced construction cost；Device therefor master of the present invention
To be pulley and hoist engine, simple to operate, easy to use, process is succinctly quick, shortens the rotator construction time, improves construction
Efficiency.
Brief description of the drawings
Fig. 1 is the steel truss girder rotary body device front view of the present invention；
Fig. 2 is the steel truss girder rotary body device side view of the present invention；
Fig. 3 is the front view of interim anchor ear；
Fig. 4 is the side view of interim anchor ear；
Fig. 5 is the view before steel truss girder swivel；
Fig. 6 is the view after steel truss girder swivel.
Embodiment
As shown in Figure 1 and Figure 2, suspension bridge steel truss girder rotary body device provided by the present invention, it is main include two hoist engines 1,
Two the interim anchor ears 3 and two assembly pulleys that are separately mounted on the main push-towing rope 2 of end bay side two, each interim bottom of anchor ear 3 are provided with
Hanger 31, and the first shackle 4 is connected by hanger 31, the first shackle 4 connects the second shackle 6, the second shackle 6 by connecting rope 5
Connect the fixed pulley 7 of an assembly pulley；Two hoist engines 1 are located at the both sides of bridge floor 8 below two end bay main push-towing ropes, every hoist engine respectively
Pull rope 9 connect an assembly pulley fixed pulley 7 and movable pulley 10；The bottom of movable pulley 10 of two assembly pulleys is equipped with suspension hook,
And be bolted together the suspension hook of the movable pulley 10 of two assembly pulleys by suspension hook bolt rope 11, the lower section of suspension hook bolt rope 11
The 3rd shackle 12 is connected, the 3rd shackle 12 connects the 4th shackles 14 by a rotation rope 13.
As shown in Figure 3, Figure 4, each interim anchor ear 3 includes upper semi-body 32 and lower semi-body 33, upper half to the structure of interim anchor ear
Body and lower semi-body both sides are equipped with screw, and upper semi-body 32 and lower semi-body 33 are fastened on main push-towing rope one on the other, and pass through both sides
Screw high-strength bolt 34 is connected, and the hanger 31 is located at the interim bottom of anchor ear lower semi-body 33.
The present invention when it is implemented, steel truss girder tonnage that the equipment and the model of part that are used can be turned as needed and
It is fixed.By taking 70 tons of steel truss girder rotation constructions as an example, 10t hoist engines can be used, two assembly pulleys lead full 8 lines using 4 80t；Institute
State the first shackle, the second shackle, the 3rd shackle, the 4th shackle and use 55t shackles；The connecting rope uses the hemp core steel wires of Φ 24
Rope, is enclosed around the first shackle and the second shackle at least 3；The suspension hook bolt rope uses the galvanized steel wire ropes of Φ 28, is enclosed around at least 4 by two
The movable pulley suspension hook bolt of assembly pulley is together；The rotation rope uses the hemp center wirelines of Φ 50, around the 3rd shackle and the 4th shackle
At least 4 circles.
, can be by the equipment employed in steel truss girder rotary body device structure and portion if necessary to be turned to more large-tonnage steel trusses
Part model accordingly increases.
The instantiation of rotator construction is carried out below by way of the above-mentioned steel truss girder rotary body device of an application, and with reference to accompanying drawing,
Construction method to the present invention is illustrated.In the present embodiment, 12.9 meters of end bay main push-towing rope spacing, steel truss girder direction across bridge length
13.8 meters of (edge to edge), indulges bridge to 11.98 meters of width.To enable steel truss girder to lead between two main push-towing ropes of the end bay at bank
Cross, gooseneck first indulges bridge to placement on flat car for transport of sills, after by between two main push-towing ropes, then carries out 90 ° of swivel, is transported to lifting position
Installed.Specific rotator construction comprises the following steps：
(1) as shown in Figure 1 and Figure 2, the both sides of bridge floor 8 below end bay main push-towing rope set two hoist engines 1；
(2) two interim anchor ears 3 are separately mounted to end bay on two main push-towing ropes 2 at bridge tower, each interim anchor ear bottom
The hanger 31 in portion connects first shackle 4 respectively, is connected with the one end of a connecting rope 5 with the first shackle 4, under the connecting rope other end
Hang down and second shackle 6 is connected through after the cat road wire side 15 below main push-towing rope；
(3) two the second shackles 6 respectively connect the fixed pulley 7 of an assembly pulley, and the pull rope 9 of two hoist engines 1 is connected respectively
The fixed pulley 7 of one assembly pulley and movable pulley 10；
(4) suspension hook of the bottom of movable pulley 10 of two assembly pulleys is bolted together with suspension hook bolt rope 11, suspension hook bolt
Restrict 11 bottoms connect the 3rd shackle 12；One 13 one end of rotation rope are connected with the 3rd shackle 12, under rotation 13 other end freedom of rope
Hang down and connect the 4th shackle 14；
(5) as shown in figure 5, steel truss girder 17 to be turned is transported on end bay bridge floor, below assembly pulley using flat car for transport of sills 16；
Intert two lifting ropes 18 in the 4th shackle 14, the two ends of every lifting rope 18 are connected with a lower boom of steel truss girder to be turned respectively
Firmly；Lifting rope 18 lays excessive circular with steel truss girder contact site, to prevent causing damage to steel truss girder；
(6) while starting two hoist engines 1, steel truss girder 17 is lifted by assembly pulley, treats that fortune Liangping is left in steel truss girder bottom
Stop hoist engine after more than 10 centimeters of car；
(7) it is artificial to promote steel truss girder 17 to rotate, it is slowly helped steady after quarter body turn；
(8) steel truss girder 17 is slowly transferred as shown in fig. 6, starting two hoist engines simultaneously, by the steel truss girder 17 after swivel
Put steady on flat car for transport of sills 16.Then lifting rope is released, startup flat car for transport of sills moves ahead is transported to installation site by the steel truss girder after swivel
Lifted.
The present invention is when it is implemented, each interim anchor ear includes upper semi-body and lower semi-body, as shown in Figure 3, Figure 4, upper semi-body
32 and the both sides of lower semi-body 33 be equipped with screw, upper semi-body and lower semi-body are fastened on main push-towing rope 2 one on the other, and the spiral shell for passing through both sides
Hole is connected with 8.8 grades of high-strength bolts 34 of 8 30, and hanger 31 is located at the interim bottom of anchor ear lower semi-body 33.As shown in Fig. 2 will face
When anchor ear 3 be arranged on the top of cord clip 19 on main push-towing rope, and held out against with cord clip 19, prevent its stress from gliding.To prevent interim anchor ear
Abrasion has been contacted with main push-towing rope, one layer of rubber is wound on the outside of main push-towing rope.
In the present embodiment, the steel truss girder that need to be turned is 70t weights, therefore can use 10t hoist engines, and two assembly pulleys are 4
Door 80t, leads full 8 lines, and above-mentioned setting is enough to sling 70t steel truss girders.
Correspondingly, first shackle, the second shackle, the 3rd shackle, the 4th shackle can use 55t shackles；The company
Splicing can use the one 6 meters long hemp center wirelines of Φ 24, be enclosed around the first shackle and the second shackle at least 3；Connecting rope two ends are utilized
Interspersed technique makes suspension ring, is connected respectively with the first shackle and the second shackle.The suspension hook bolt rope can use one 3 meters long
The galvanized steel wire ropes of Φ 28, are enclosed the movable pulley suspension hook bolt of two assembly pulleys together around at least 4；The rotation rope can be using 2 Φ
50 hemp center wirelines, are enclosed around the 3rd shackle and the 4th shackle at least 4.
Above-described embodiment is, to 70 tons of steel truss girder rotation constructions, more large-tonnage steel trusses to be turned if desired, can be by steel
Involved equipment and number of element types accordingly increase in trusses rotary body device structure.
Claims (10)
1. a kind of suspension bridge steel truss girder rotary body device, it is characterised in that：It is main to be separately mounted to side including two hoist engines, two
Across the interim anchor ear on the main push-towing rope of side two and two assembly pulleys, each interim anchor ear bottom is provided with hanger, and is connected by hanger
First shackle, the first shackle connects the second shackle by connecting rope, and the second shackle connects the fixed pulley of an assembly pulley；Two elevators
Machine is located at the bridge floor both sides below two end bay main push-towing ropes respectively, the pull rope of every hoist engine connect an assembly pulley fixed pulley and
Movable pulley；The movable pulley bottom of two assembly pulleys is equipped with suspension hook, and is hung the movable pulley of two assembly pulleys by suspension hook bolt rope
Hook is bolted together, the suspension hook bolt rope lower section the 3rd shackle of connection, and the 3rd shackle passes through rotation rope the 4th shackle of connection.
2. suspension bridge steel truss girder rotary body device according to claim 1, it is characterised in that：Each interim anchor ear includes upper half
Body and lower semi-body, upper semi-body and lower semi-body both sides are equipped with screw, and upper semi-body and lower semi-body are fastened on main push-towing rope one on the other, and
Connected by the screw of both sides with high-strength bolt, the hanger is located at interim anchor ear lower semi-body bottom.
3. suspension bridge steel truss girder rotary body device according to claim 1, it is characterised in that：The hoist engine uses 10t volumes
Machine is raised, two assembly pulleys are 4 80t, lead full 8 lines.
4. suspension bridge steel truss girder rotary body device according to claim 1, it is characterised in that：First shackle, second are unloaded
Button, the 3rd shackle, the 4th shackle use 55t shackles.
5. suspension bridge steel truss girder rotary body device according to claim 1, it is characterised in that：The connecting rope is using the fiber crops of Φ 24
Independent wire strand core wire rope, is enclosed around the first shackle and the second shackle at least 3；The suspension hook bolt rope uses the galvanized steel wire ropes of Φ 28, around at least 4
Enclose the movable pulley suspension hook bolt of two assembly pulleys together；The rotation rope uses the hemp center wirelines of Φ 50, around the 3rd shackle and the
Four shackles at least 4 are enclosed.
6. a kind of suspension bridge steel truss girder rotation swivel construction method, it is characterised in that comprise the following steps：
(1) the bridge floor both sides below end bay main push-towing rope set two hoist engines；
(2) two interim anchor ears are separately mounted to end bay on two main push-towing ropes at bridge tower, each interim anchor ear bottom is hung
Ear connects first shackle respectively, is connected with a connecting rope one end with the first shackle, and the connecting rope other end is sagging to pass through main push-towing rope
Second shackle is connected after the cat road wire side of lower section；
(3) two the second shackles respectively connect an assembly pulley, and the pull rope of two hoist engines connects the fixed pulley of an assembly pulley respectively
With movable pulley；
(4) suspension hook of the movable pulley bottom of two assembly pulleys is bolted together with suspension hook bolt rope, suspension hook bolt rope bottom connects
Connect the 3rd shackle；One rotation rope one end is connected with the 3rd shackle, the rotation rope other end is freely sagging and connects the 4th shackle；
(5) steel truss girder to be turned is transported on end bay bridge floor, below assembly pulley using flat car for transport of sills；Unloaded the 4th and buckle interspersed two
Root lifting rope, the lower boom of the two ends of every lifting rope respectively with steel truss girder to be turned is connected firmly；
(6) while starting two hoist engines, steel truss girder is lifted by assembly pulley, treats that 10 centimeters of flat car for transport of sills is left in steel truss girder bottom
Stop hoist engine after above；
(7) it is artificial to promote steel truss girder to rotate, it is slowly helped steady after quarter body turn；
(8) steel truss girder is slowly transferred while starting two hoist engines, after steel truss girder is put surely on flat car for transport of sills, releasing is hung
Rope, startup flat car for transport of sills moves ahead is transported to installation site by the steel truss girder after swivel.
7. suspension bridge steel truss girder rotation swivel construction method according to claim 6, it is characterised in that：Each interim anchor ear includes
Upper semi-body and lower semi-body, upper semi-body and lower semi-body both sides are equipped with screw, and upper semi-body and lower semi-body are fastened on main push-towing rope one on the other
On, and connected by the screw of both sides with high-strength bolt, the hanger is located at interim anchor ear lower semi-body bottom；Interim anchor ear is pacified
Above cord clip on main push-towing rope, and held out against with cord clip, prevent its stress from gliding.
8. suspension bridge steel truss girder rotation swivel construction method according to claim 6, it is characterised in that：The hoist engine is used
10t hoist engines, two assembly pulleys are 4 80t, lead full 8 lines.
9. suspension bridge steel truss girder rotation swivel construction method according to claim 6, it is characterised in that：First shackle,
Two shackles, the 3rd shackle, the 4th shackle use 55t shackles.
10. suspension bridge steel truss girder rotation swivel construction method according to claim 6, it is characterised in that：The connecting rope is used
The hemp center wirelines of Φ 24, are enclosed around the first shackle and the second shackle at least 3；The suspension hook bolt rope uses the galvanized steel wire ropes of Φ 28,
Enclosed around at least 4 by the movable pulley suspension hook bolt of two assembly pulleys together；The rotation rope uses the hemp center wirelines of Φ 50, is unloaded around the 3rd
Button and the 4th shackle at least 4 circle.
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| CN201710328927.1A CN106988227A (en) | 2017-05-10 | 2017-05-10 | A kind of suspension bridge steel truss girder rotary body device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710328927.1A CN106988227A (en) | 2017-05-10 | 2017-05-10 | A kind of suspension bridge steel truss girder rotary body device and construction method |
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| CN106988227A true CN106988227A (en) | 2017-07-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642049A (en) * | 2017-08-23 | 2018-01-30 | 柳州欧维姆机械股份有限公司 | A kind of device and its installation method changed for main rope of suspension bridge cord clip |
| CN108330844A (en) * | 2018-01-18 | 2018-07-27 | 重庆溢权科技发展有限公司 | Based on Big Dipper positioning intelligent Bridge Rotation Construction Technique method |
| CN109322251A (en) * | 2018-12-03 | 2019-02-12 | 中交第四公路工程局有限公司 | A kind of fixed structure and fixing means of suspension cable bridge section lifting hoisting platform |
| CN112523413A (en) * | 2020-12-16 | 2021-03-19 | 广东省建筑设计研究院有限公司 | Detachable reset design method applied to scoop screen in large-span cable dome structure |
| CN114162739A (en) * | 2021-10-29 | 2022-03-11 | 中铁十九局集团第五工程有限公司 | Suspension bridge steel truss girder side span hoisting adjusting system |
| CN114657879A (en) * | 2022-03-06 | 2022-06-24 | 中交第四公路工程局有限公司 | Method for hoisting and lifting main beam in suspender area of tied arch bridge with steel truss girder by using cable |
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Application publication date: 20170728 |