CN102134833B - Construction method for hoisting and disassembling bailey truss - Google Patents
Construction method for hoisting and disassembling bailey truss Download PDFInfo
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- CN102134833B CN102134833B CN201110041999A CN201110041999A CN102134833B CN 102134833 B CN102134833 B CN 102134833B CN 201110041999 A CN201110041999 A CN 201110041999A CN 201110041999 A CN201110041999 A CN 201110041999A CN 102134833 B CN102134833 B CN 102134833B
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- thunder frame
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Abstract
The invention provides a construction method for hoisting and disassembling a bailey truss, which comprises the following steps of: preparing construction; assembling a hoisting system; connecting the hoisting system with a walking system; and hoisting and disassembling the bailey truss, namely debugging the hoisting system, making the walking system walk to the lower side of the bailey truss, lifting a chain block to hook the bailey truss, obliquely pulling the bailey truss by using a steel wire rope, lifting the bailey truss, making the walking system slowly walk to the outside of a box girder, lifting the bailey truss to a fixed point by using a crane, and repeating the processes until various rows of bailey trusses are disassembled. The construction method has the advantages of low construction difficulty, simple construction process, high safety factor, high controllability, small movement amplitude of the bailey trusses, and the like, is convenient to operate, and is particularly suitable for constructing municipal bridges.
Description
Technical field
The present invention relates to the job practices that the municipal bridge box and beam construction institute shellfish thunder boom support that adopts lifts dismounting.
Background technology
In the municipal administration bridge construction,, generally adopt shellfish thunder boom support to support box girder construction for guaranteeing the urban traffic traffic capacity.
The Bei Leiliang dismounting mode that present domestic bridge construction is commonly used has:
1. pull out from the side with crane, because of can't be in shellfish thunder frame center lifting, and shellfish thunder beam weight be big, and lifting safety can not get ensureing, and collides other object easily.When Bei Leiliang leaned against the case beam by the inboard, crane can't be put to good use open at all.
2. adopt the monolithic beam to be broken into unit element, hang to cooperate by part with pulley or cucurbit and remove, the method pulley is difficult for taking root, and operates quite difficulty, and speed is slow.
Summary of the invention
Technical problem to be solved by this invention is: provide in the construction of a kind of simple and easy to do Urban Bridge shellfish thunder frame to remove job practices, and provide a kind of simple in structure, assembly unit and timesaving shellfish thunder frame are removed system at the scene.
The technical scheme that the present invention solves its technical problem employing is:
The job practices that shellfish thunder frame lifting provided by the invention is removed specifically is to adopt the method that may further comprise the steps:
A. preparation of construction:
Before construction is removed in the lifting of shellfish thunder frame, need to remove the annex on the shellfish thunder frame, the foreign material on the cleaning shellfish thunder frame.
B. Lift-on/Lift-off System assembling:
First step mounting seat:
Vertical rod and long transverse lever are welded through angle steel, weld the channel-section steel diagonal brace again, the hyphen bar is with the horizontal diagonal brace welding of base; The channel-section steel left-hand thread forms a base on the hyphen bar, and is fixed with nut after passing the bolt hole on the channel-section steel with bolt, and with channel-section steel and long transverse lever welding, this channel-section steel is drilled with spacing hole again; So far a base completes;
Repeat said process, make second base;
Then, two base assembly units will making according to height at the bottom of the case beam.
Second step assembling Lift-on/Lift-off System:
With diagonal brace with after the column stull makes column and the column cross bar is connected through welding manner; With lacking the welding of steel plate and column and exposing bolt hole and spacing hole; So that column is connected with the bolt hole of channel-section steel with bolt and nut, and penetrates with spacer pin and to make it fixing in the scope of regulation in the spacing hole; After the welding of crossbeam and column, respectively with stull, crossbeam stull welding, then with welding with the triangle stiffener between crossbeam and column, column and base, fixing Chain block on crossbeam is installed People's Bank of China's cat ladder at last.
C. being connected of Lift-on/Lift-off System and running gear:
Lift-on/Lift-off System and steel plate is fixing with the angle steel welding, connect into integral body with running gear, stablize Lift-on/Lift-off System with wire rope inclined-pulling for four jiaos, running gear is replaced by lorry.
D. lift and remove shellfish thunder frame:
A, Lift-on/Lift-off System debugging;
B, running gear walk under the shellfish thunder frame, and the orientation need guarantee that the Lift-on/Lift-off System center is consistent at shellfish thunder frame center;
C, lifting Chain block hook shellfish thunder frame, and with wire rope inclined-pulling shellfish thunder frame;
D, shellfish thunder frame is promoted 19～21cm, Chain block will evenly rise, and keeps shellfish thunder frame horizontal stable;
E, running gear slowly walk to outside the case beam;
F, hang down shellfish thunder frame to the fixed location with crane;
Repeating step a accomplishes the dismounting of respectively arranging shellfish thunder frame until circulation and accomplishes to step f.
The present invention is primarily aimed at and adopts shellfish thunder boom support in the municipal bridge construction, and the construction of on Bei Leiliang, setting up scaffold.Under situation about being not easy to, use with crane dismounting shellfish thunder frame.
The present invention compared with prior art has following beneficial effect:
1. difficulty of construction is little, and construction technology is simple.
This method only needs after the dismounting system moves on to the position, and two workmans spur Chain block and hook four points of shellfish thunder frame, and with the fixing shellfish thunder frame of wire rope, and behind shellfish thunder frame pull-up certain altitude (19-21cm), lorry slowly moves ahead and shifts out the case beam and get final product outward.
2. easy to operate:
This method need not jenny, and lorry hangs down shellfish thunder frame with crane after shellfish thunder frame is moved to the permanent position, then at fixing local dismounting shellfish thunder frame.Lifting was accomplished one group of shellfish thunder frame about 20 minutes, can save a large amount of durations.
3. safety factor is high, and controllability is strong, and shellfish thunder frame mobile range is little.Through the fixing shellfish thunder frame of wire rope, keep the stable of shellfish thunder frame.
In sum, the present invention compared with prior art has suitable remarkable advantages in the Urban Bridge work progress.
Description of drawings
Fig. 1 is the structural representation that shellfish thunder frame of the present invention is removed system.
Fig. 2 is the structural representation of Lift-on/Lift-off System of the present invention.
Fig. 3 is the structural representation of base among Fig. 2.
Fig. 4 is that vertical rod is connected sketch map with crossbeam among Fig. 2.
Fig. 5 is the structural representation of Fig. 2 middle cross beam.
Fig. 6 be among Fig. 1 A to enlarged diagram.
Fig. 7 is the plan view of Fig. 6.
Fig. 8 is the oblique elevation of body frame among Fig. 2.
Fig. 9 is a shellfish thunder frame lifting construction process chart.
Among the figure: 1. steel plate; 2. angle steel; 3. vertical rod; 4. long transverse lever; 5. channel-section steel diagonal brace; 6. hyphen bar; 7. column; 8. crossbeam; 9. triangle stiffener; 10. column stull; 11. diagonal brace; 12. column cross bar; 13. crossbeam; 14. stull; 15. crossbeam stull; 16. bolt hole; 17. bolt; 18. short steel plate; 19. channel-section steel; 20. spacing hole; 21. spacer pin; 22. Chain block; 23. steel cable; 24. shellfish thunder frame; 25. People's Bank of China's cat ladder; 26. the horizontal diagonal brace of base; 27. wire rope.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described further.
Job practices is removed in shellfish thunder frame lifting provided by the invention; Referring to Fig. 9; Its technological process comprises that preparation of construction, Lift-on/Lift-off System assembling, lifting are connected with running gear, the dismounting system on probation, shellfish thunder frame lifts, running gear walks to outside the case beam and with crane and hangs down shellfish thunder frame to the fixed point step, and is specific as follows:
1. preparation of construction:
Before shellfish thunder frame 24 lifting constructions, need to remove the annex on the shellfish thunder frame, this annex comprises vertical, the horizontal lumps of wood, scaffold and channel-section steel etc., and the foreign material on the cleaning shellfish thunder frame.When shellfish thunder frame lifts, must not there be foreign material to fall.
2. Lift-on/Lift-off System assembling:
This Lift-on/Lift-off System mounting method is following:
(1) installation of base:
Channel-section steel diagonal brace 5 is welded in vertical rod 3 and 2 welding of long transverse lever 4 usefulness angle steel again, horizontal diagonal brace 26 welding of hyphen bar 6 usefulness bases; Channel-section steel 19 left-hand threads form a base on long transverse lever 4, and bolt hole 16 back of passing on the channel-section steel 19 with bolt 17 is fixed with nut, and with channel-section steel 19 and long transverse lever 4 welding, this channel-section steel 19 is drilled with spacing hole 20 again.So far a base completes.
Repeat said process, make second base.
Then, two base assembly units will making according to height at the bottom of the case beam.
(2) assembling of Lift-on/Lift-off System:
With diagonal brace 11 with after column stull 10 makes column 7 and column cross bar 12 is connected through welding manner; With lacking steel plate 18 and column 7 welding and exposing bolt hole 16 and spacing hole 20; So that column 7 usefulness bolts and nut are connected with the bolt hole 16 of channel-section steel 19, and penetrate with spacer pin 21 and to make it fixing in the scope of regulation in the spacing hole 20; After crossbeam 8 and column 7 welding; Respectively with stull 14, crossbeam stull 15 welding; Then with between crossbeam 13 and column 7, column 7 and base with triangle stiffener 9 welding, fixing Chain block 22 (totally three arranging six) on crossbeam 8 is installed People's Bank of China's cat ladder 25 at last.When lifting operation, on Lian Beilei frame 24, following company commander's cross bar 4 on the steel cable 23.
3. being connected of Lift-on/Lift-off System and running gear:
Steel plate 1 is winched on the running gear, then Lift-on/Lift-off System and steel plate are welded with angle steel, guarantee the resistance to overturning of dismounting system, and tiltedly draw Lift-on/Lift-off System for 27 4 jiaos, be fixed on the running gear with wire rope.
Said running gear can replace with lorry, but lorry needs to select tonnage according to lifting weight.
4. lift and remove shellfish thunder frame 24:
Running gear walks to shellfish thunder frame 24 times, and the position need guarantee that the Lift-on/Lift-off System center is consistent with shellfish thunder frame center;
After hooking shellfish thunder frame 24 with Chain block 22,, promote Chain block again, make shellfish thunder frame horizontal stable rise to 18～22cm earlier with wire rope inclined-pulling shellfish thunder frame;
Utilize running gear that shellfish thunder frame slowly is transported to outside the case beam, hang down shellfish thunder frame to the fixed location with crane again.
Repeating step 4 lifts and removes next Jie Beilei frame again, and so each Jie Beilei frame dismounting is accomplished in circulation.
Said method provided by the invention can utilize like Fig. 1 to shellfish thunder frame lifting dismounting system realization shown in Figure 8; Wherein: after utilizing Lift-on/Lift-off System in the shellfish thunder frame lifting dismounting system that shellfish thunder frame is mentioned certain altitude; With the running gear in the shellfish thunder frame lifting dismounting system shellfish thunder frame is transported to outside the case beam again; With crane shellfish thunder frame is taken off, lift next Jie Beilei frame then, so circulation is accomplished and is removed each Jie Beilei frame.
Said shellfish thunder frame lifts the dismounting system, comprises Lift-on/Lift-off System and running gear, wherein:
Lift-on/Lift-off System: comprise underframe, column 7 and Chain block 22.Square or rectangular underframe is made up of upper and lower base, and they are the bolt one that is formed by connecting, and the bottom of lower bottom base is provided with the steel plate 1 that is fixedly linked with it.Column 7 has two, and its bottom is weldingly connected with upper bed-plate one side roof part respectively, and a cantilever that is made up of crossbeam 8 is respectively welded in its upper end.Chain block hangs on the cantilever.
Lift-on/Lift-off System is located on the supporting body of running gear through its steel plate 1, on four jiaos are stabilized in running gear with wire rope inclined-pulling the supporting body.The size of said steel plate 1 needs than the big 50cm in each limit of lower bottom base, to keep the stability of Lift-on/Lift-off System.
Described upper and lower base is formed by the horizontal diagonal brace 26 of vertical rod 3, long transverse lever 4, channel-section steel diagonal brace 5, hyphen bar 6, channel-section steel 19 and base, and the height of each base is 1.5m.Vertical rod 3, long transverse lever 4 and hyphen bar 6 all adopt i iron, and channel-section steel diagonal brace 5 is processed by channel-section steel.Wherein: vertical rod 3 and long transverse lever 4 are through the angle steel 2 formation framework that is weldingly connected.Two channel-section steel diagonal brace 5 arranged crosswise, with the side opposite the angle reinforcement of weld of said framework, this diagonal brace and vertical rod junction add weldering with steel plate 1.Hyphen bar 6 is weldingly connected with the horizontal diagonal brace 26 of base.Channel-section steel 19 left-hand threads form a base on hyphen bar 6, and bolt hole 16 backs of passing on the channel-section steel 19 with bolt 17 lock with nut.Channel-section steel 19 and long transverse lever 4 welding, this channel-section steel is drilled with spacing hole 20.
The bottom of said vertical rod 3 is welded with short steel plate, lacks steel plate and leaves bolt hole and spacing hole, connect with thread to make things convenient between the upper and lower base, and stable with spacer pin 21.
Said column 7 usefulness I-shaped steel are processed, column connect connect with base and base between connection the same.
The crossbeam 8 that described cantilever is processed by i iron constitutes, and arranges Chain block, totally three groups six at the crossbeam place according to shellfish thunder frame 24.Crossbeam and column, column and base junction are with angle steel 2 reinforcement of welds.To be crossbeam 8 be supported on the column cylinder by oblique layout and the triangle stiffener 9 that is weldingly connected the arm body of this cantilever.
The present invention can utilize upper and lower base to regulate the height of Lift-on/Lift-off System, is used with the differing heights to the case beam.Between column 7 and upper bed-plate, each base with channel-section steel 19 left-hand threads on hyphen bar 6, and pass bolt hole 16 back on the channel-section steel 19 with the nut locking with bolt 17, fix with the spacing hole 20 that spacer pin 21 passes on the channel-section steel 19.
Running gear provided by the invention can substitute with lorry, but needs to select the size of boxcar and the tonnage of lorry according to the Aspect Ratio of Lift-on/Lift-off System.The boxcar is a supporting body, pading plate on the compartment, and each limit of steel plate needs than the big 0.5m of Lift-on/Lift-off System.Steel plate and base weld with angle steel, and Lift-on/Lift-off System and running gear are tiltedly drawn with wire rope 27.
Shellfish thunder frame provided by the invention lifts special-purpose dismounting system, and be primarily aimed at and adopt shellfish thunder boom support in the municipal bridge construction, the construction of on Bei Leiliang, setting up scaffold, and use being not easy to remove with crane under the situation of shellfish thunder frame.During lifting operation, link to each other with the long transverse lever 4 of wire rope 23 with shellfish thunder frame and Lift-on/Lift-off System.
Claims (4)
1. a shellfish thunder frame lifts the job practices of removing, and it is characterized in that:
A. preparation of construction:
Before construction is removed in the lifting of shellfish thunder frame, need to remove the annex on the shellfish thunder frame, the foreign material on the cleaning shellfish thunder frame;
B. Lift-on/Lift-off System assembling:
First step mounting seat:
Vertical rod (3) and long transverse lever (4) are welded through angle steel (2), weld channel-section steel diagonal brace (5) again, hyphen bar (6) welds with the horizontal diagonal brace of base (26); Channel-section steel (19) left-hand thread go up to form a base at hyphen bar (6), and bolt hole (16) back of passing on the channel-section steel (19) with bolt (17) is fixed with nut, channel-section steel (19) and long transverse lever (4) is welded again, and this channel-section steel (19) is drilled with spacing hole (20); So far a base completes,
Repeat said process, make second base,
Then, two base assembly units will making according to height at the bottom of the case beam;
Second step assembling Lift-on/Lift-off System:
With diagonal brace (11) with after column stull (10) makes column (7) and column cross bar (12) is connected through welding manner; Weld and expose bolt hole (16) and spacing hole (20) with short steel plate (18) and column (7); So that column (7) is connected with the bolt hole (16) of channel-section steel (19) with bolt and nut, and penetrates with spacer pin (21) and to make it fixing in the scope of regulation in the spacing hole (20); After crossbeam (8) and column (7) welding; Use stull (14), crossbeam stull (15) welding respectively; With welding with triangle stiffener (9) between crossbeam (13) and column (7), column (7) and base, go up fixedly Chain block (22) then, People's Bank of China's cat ladder (25) is installed at last at crossbeam (8);
C. being connected of Lift-on/Lift-off System and running gear:
Lift-on/Lift-off System and steel plate (1) is fixing with angle steel (2) welding, connect into integral body with running gear, stablize Lift-on/Lift-off System with wire rope inclined-pulling for four jiaos;
D. lift and remove shellfish thunder frame:
A, Lift-on/Lift-off System debugging,
B, running gear walk under the shellfish thunder frame, and the orientation need guarantee that the Lift-on/Lift-off System center is consistent with shellfish thunder frame center,
C, lifting Chain block hook shellfish thunder frame, and with wire rope inclined-pulling shellfish thunder frame,
D, shellfish thunder frame is promoted 19～21cm, Chain block will evenly rise, and keeps shellfish thunder frame horizontal stable,
E, running gear slowly walk to outside the case beam,
F, hang down shellfish thunder frame to the fixed location with crane,
Repeating step a accomplishes the dismounting of respectively arranging shellfish thunder frame until circulation and accomplishes to step f.
2. the job practices that shellfish thunder frame lifting according to claim 1 is removed is characterized in that: utilize two bases to regulate the Lift-on/Lift-off System height; When base connects, between column (7) and base, each base with channel-section steel (19) left-hand thread on hyphen bar (6), and fix with bolt (17), spacer pin (21).
3. the job practices that shellfish thunder frame lifting according to claim 1 is removed is characterized in that: during lifting operation, link to each other with the long transverse lever (4) of wire rope (23) with shellfish thunder frame and Lift-on/Lift-off System.
4. the job practices that shellfish thunder frame lifting according to claim 1 is removed, it is characterized in that: running gear is replaced by lorry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110041999A CN102134833B (en) | 2011-02-21 | 2011-02-21 | Construction method for hoisting and disassembling bailey truss |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110041999A CN102134833B (en) | 2011-02-21 | 2011-02-21 | Construction method for hoisting and disassembling bailey truss |
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| Publication Number | Publication Date |
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| CN102134833A CN102134833A (en) | 2011-07-27 |
| CN102134833B true CN102134833B (en) | 2012-09-05 |
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| CN201110041999A Expired - Fee Related CN102134833B (en) | 2011-02-21 | 2011-02-21 | Construction method for hoisting and disassembling bailey truss |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900027B (en) * | 2012-10-22 | 2015-03-18 | 中铁十局集团有限公司 | Dismounting method of bailey beam with upwardly strode existing lines and underneath penetrated existing bridge |
| CN103882810B (en) * | 2014-03-31 | 2016-03-02 | 中铁十局集团建筑工程有限公司 | A kind of anti-dilatory detaching device of large span support system and method |
| CN105464066B (en) * | 2015-12-29 | 2017-03-29 | 中国水利水电第八工程局有限公司 | The construction method that a kind of Bailey bracket of the high drop beam slab closing of large span is removed |
| CN106144929A (en) * | 2016-06-28 | 2016-11-23 | 中国建筑第二工程局有限公司 | One population hoist device and construction method |
| CN107188039B (en) * | 2017-06-02 | 2019-02-19 | 中国航发南方工业有限公司 | Overhead trolley combined hanging method |
| CN112668151B (en) * | 2020-12-10 | 2022-07-01 | 上海宝冶集团有限公司 | Substitution method for Bailey truss modeling in design software |
| CN113565324A (en) * | 2021-07-26 | 2021-10-29 | 中建四局第三建设有限公司 | Method for removing bailey frames in small space by wholly sliding horizontally and fixing points |
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| JP3860301B2 (en) * | 1997-08-04 | 2006-12-20 | 横河工事株式会社 | Bridge girder temporary construction method and pedestal that can be used for it |
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| CN102134833A (en) | 2011-07-27 |
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