CN109914259A - The limited steel truss of hoisting platform encircles hanging method - Google Patents
The limited steel truss of hoisting platform encircles hanging method Download PDFInfo
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- CN109914259A CN109914259A CN201910281895.3A CN201910281895A CN109914259A CN 109914259 A CN109914259 A CN 109914259A CN 201910281895 A CN201910281895 A CN 201910281895A CN 109914259 A CN109914259 A CN 109914259A
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- steel truss
- arch
- shoulder pole
- pole girder
- cable crane
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Abstract
The invention discloses the steel truss that a kind of hoisting platform is limited to encircle hanging method, coordinate to complete with installation from steel truss arch, main chord, shoulder pole girder, suspender belt, platform sling, hoisting platform, cable crane suspension hook, main rope, cable crane suspension hook and main rope spacing are wider than assembled good steel truss arch span degree, shoulder pole girder is hung on cable crane suspension hook, suspender belt is arranged according to steel truss arch bar part spacing on shoulder pole girder, steel truss arch main chord is suspended on shoulder pole girder suspender belt；Hoisting platform is located at steel truss and encircles at 1/4 projection, is encircleed by already installed steel truss cover completely；Cable crane main hook is outer in steel truss arch when lifting, plays shoulder pole girder from arch is lower and enters lifting place, steel truss arch main chord is then hung up properly on shoulder pole girder；Cable crane suspension hook is installed, leaves ground to main chord rod piece, already installed steel truss arch range is walked out in shoulder pole girder translation, and cable crane is hooked up to institute position to be mounted.The present invention solves the problems, such as that span centre setting lifting point is difficult, reduces subaqueous work steel platform security risk, save the cost.
Description
Technical field
The present invention relates to large-span steel braced arch lift field, especially a kind of hoisting platform can not extend to closure mouth or across
In the limited steel truss of hoisting platform encircle hanging method.
Background technique
Chord member is lifted in Arch Bridge Construction at present and mainly uses the whole segment lifting of cable crane or single rib, single member erection.Cable
Rope is hung in hoisting process, and as hung segment extends to span centre, lifting place is generally located on span centre.Institute's cross a river stream has navigation
The steel truss arched bridge beam column part transport of condition uses waterway transportation, and lifting point is just arranged on river surface ship.And it is logical for not having
The river of boat condition is general using steel platform of constructing in water when hoisting platform is arranged in span centre.For playing the heavier bridge of hanging object
Beam is very high to the force request of steel platform.Mountainous region arch bridge, narrow terrain, institute does not have navigation condition again across rivers and water flow is rapid
Anxious, it is difficult greatly that lifting point is arranged in span centre, and span centre setting hoisting platform cost is too high, exists simultaneously very big security risk.
Summary of the invention
The technical problem to be solved in the present invention is to provide the steel truss that a kind of hoisting platform is limited to encircle hanging method, solves
Existing difficulty when subaqueous work steel platform, eliminates security risk existing for subaqueous work, while also largely saving
Cost.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of steel truss arch hanging method that hoisting platform is limited, passes through steel truss arch, main chord, shoulder pole girder, suspender belt, platform sling, lifting
Platform, cable crane suspension hook, main rope are coordinated installation cooperation and are completed, and cable crane suspension hook and main rope spacing are wider than assembled good steel truss arch span
Degree, hangs shoulder pole girder on cable crane suspension hook, arranges suspender belt according to steel truss arch bar part spacing on shoulder pole girder, steel truss encircles main chord suspention
In on shoulder pole girder suspender belt；Hoisting platform is located at steel truss and encircles at 1/4 projection, is encircleed by already installed steel truss cover completely；Lifting
When cable crane main hook it is outer in steel truss arch, play shoulder pole girder from arch is lower and enter lifting place, steel truss arch is then hung up properly on shoulder pole girder
Main chord；Cable crane suspension hook is installed, leaves ground to main chord rod piece, already installed steel truss arch model is walked out in shoulder pole girder translation
It encloses, cable crane is hooked up to institute position to be mounted.
The present invention by adopting the above technical scheme, compared with prior art, the beneficial effect is that:
The steel truss arched bridge beam of hoisting platform cannot be set for span centre, how the emphasis that reasonable hoisting platform is lifting is set.
This method is wider than the shoulder pole girder, cable crane and main rope of steel truss arch span degree by design, so that cable crane suspension hook can outside steel truss arch
To slide laterally to steel truss arch projection 1/4；Encircleed using cable crane with already installed steel truss is worn under shoulder pole girder, is solved
The difficulty of hoisting platform cannot be arranged in span centre, reduce subaqueous work and restrict to lifting bring, reduce steel platform in water and apply
Work bring security risk, while also saving construction cost.This method is played flat by the cable crane main hook outside steel truss is encircleed
Spreader beam is pierced into from arch is lower into lifting place, hangs main chord, leaves ground to main chord rod piece, shoulder pole girder translation is walked out
Mounted steel truss encircles range, and cable crane is hooked up to designated position, solves the problems, such as that span centre does not set hoisting platform.
Further optimal technical scheme is as follows:
When each two suspension hooks of cable crane upstream and downstream are on the outside of steel truss arch, moved freely above hoisting platform.
Two shoulder pole girders are hung on cable band four suspension hooks of upstream and downstream by suspender belt or platform sling direction across bridge, shoulder pole girder setting
Removable saddle, suspender belt are hung on saddle to hang main chord.
Shoulder pole girder encircles from already installed steel truss arch abutment subordinate, and arching upward from the lower steel truss entered at 1/4 of arch, it is flat to hang
Platform.
Arch ring main chord spacing is adjusted by removable saddle, and the elevation angle is adjusted by shoulder pole girder height.
Detailed description of the invention
Fig. 1 is the schematic elevation view of the embodiment of the present invention；
Fig. 2 is the side view of Fig. 1；
In figure: 1, steel truss is encircleed；2, cable crane main rope；3, cable crane main hook；4, shoulder pole girder；5, annular suspender belt；6, platform sling or suspender belt；
7, saddle is moved；8, main chord；9, hoisting platform.
Specific embodiment
With reference to the accompanying drawings and embodiments, the present invention is further illustrated.
Referring to Fig. 1, Fig. 2, a kind of steel truss arch hanging method that hoisting platform is limited, mainly by cable crane main rope 2, cable crane
The cooperations such as main hook 3, shoulder pole girder 4, suspender belt 5, suspender belt or platform sling 6, main chord 8, removable saddle 7 are completed.Present invention lifting
Front hook process is related to two groups of cable crane main ropes of upstream and downstream, 2, four cable crane main hooks 3, and cable crane main hook 3 is by suspender belt or hangs
Plate 6 suspends shoulder pole girder 4 in midair；Removable saddle 7 is set on shoulder pole girder 6, and 5 sets of annular suspender belt are hung down on removable saddle 7 to hang
Main chord 8；Make shoulder pole girder 4 be lower than the steel truss being installed arch 1 by 3 off the hook of cable crane main hook, then passes through cable crane main hook 3
9 top of hoisting platform is moved to reach, 3 off the hook of cable crane main hook to hoisting platform 9 simultaneously hangs up properly main chord 8.
Hoisting process is as follows:
It is hooked up by cable crane main hook 3, shoulder pole girder 4 drives after main chord 8 leaves place, and cable crane main hook 3 is to being installed
Steel truss encircles the movement of 1 front end, and after shoulder pole girder 4 moves out the steel truss being installed arch 1, cable crane is hooked up, so that main chord 8 reaches
Designated position adjusts the contraposition of 8 elevation angle of main chord by adjusting 4 height of shoulder pole girder.
The above is only specific embodiments of the present invention, but protection of the invention is without being limited thereto, the skill of any the art
Art personnel the thinkable variation or substitution being equal with the technical program technical characteristic, all cover in protection scope of the present invention
Within.
Claims (5)
1. a kind of limited steel truss of hoisting platform encircles hanging method, by steel truss arch, main chord, shoulder pole girder, suspender belt, platform sling, rise
It hangs platform, cable crane suspension hook, main rope and coordinates installation cooperation completion, it is characterised in that: cable crane suspension hook and main rope spacing are wider than spelling
The steel truss arch span degree installed, hangs shoulder pole girder on cable crane suspension hook, arranges suspender belt, steel according to steel truss arch bar part spacing on shoulder pole girder
Braced arch main chord is suspended on shoulder pole girder suspender belt；Hoisting platform is located at steel truss and encircles at 1/4 projection, completely by already installed steel
Braced arch covering；Cable crane main hook is outer in steel truss arch when lifting, plays shoulder pole girder from arch is lower and enters lifting place, then in shoulder pole girder
On hang up properly steel truss arch main chord；Cable crane suspension hook is installed, leaves ground to main chord rod piece, shoulder pole girder translation, which is walked out, has installed
Good steel truss encircles range, and cable crane is hooked up to institute position to be mounted.
2. the limited steel truss of hoisting platform according to claim 1 encircles hanging method, it is characterised in that: cable crane upstream and downstream
When each two suspension hooks are on the outside of steel truss arch, moved freely above hoisting platform.
3. the limited steel truss of hoisting platform according to claim 1 encircles hanging method, it is characterised in that: two shoulder pole girders are logical
It crosses suspender belt or platform sling direction across bridge is hung on cable band four suspension hooks of upstream and downstream, removable saddle is arranged in shoulder pole girder, and suspender belt is hung over
To hang main chord on saddle.
4. the limited steel truss of hoisting platform according to claim 1 encircles hanging method, it is characterised in that: shoulder pole girder is from
Mounted steel truss arch abutment subordinate arch encircles hoisting platform from the lower steel truss entered at 1/4 of arch.
5. the limited steel truss of hoisting platform according to claim 1 encircles hanging method, it is characterised in that: between arch ring main chord
Away from being adjusted by removable saddle, the elevation angle is just adjusted by shoulder pole girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281895.3A CN109914259A (en) | 2019-04-09 | 2019-04-09 | The limited steel truss of hoisting platform encircles hanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281895.3A CN109914259A (en) | 2019-04-09 | 2019-04-09 | The limited steel truss of hoisting platform encircles hanging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109914259A true CN109914259A (en) | 2019-06-21 |
Family
ID=66969172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910281895.3A Withdrawn CN109914259A (en) | 2019-04-09 | 2019-04-09 | The limited steel truss of hoisting platform encircles hanging method |
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| Country | Link |
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| CN (1) | CN109914259A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668391A (en) * | 2021-08-03 | 2021-11-19 | 中交路桥建设有限公司 | Double-width arch rib synchronous installation method of half-through steel box basket arch bridge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09209312A (en) * | 1996-02-05 | 1997-08-12 | Mitsubishi Heavy Ind Ltd | Bridge erecting device |
| CN101445208A (en) * | 2008-12-29 | 2009-06-03 | 中铁二局股份有限公司 | Hanger for lifting construction of bridge cable |
| CN101525865A (en) * | 2008-12-30 | 2009-09-09 | 中铁二局股份有限公司 | Extroversive posture adjusting method for steel box arch rib section |
| CN104674668A (en) * | 2015-01-19 | 2015-06-03 | 中铁大桥局集团有限公司 | Method for hoisting construction girder sections through cables |
| CN104790300A (en) * | 2015-05-19 | 2015-07-22 | 中铁大桥局集团有限公司 | Flexible pier-side girder erecting platform and construction method thereof |
| CN207003260U (en) * | 2017-07-01 | 2018-02-13 | 中铁十八局集团第二工程有限公司 | Adjustable shoulder pole girder for cable crane lifting |
-
2019
- 2019-04-09 CN CN201910281895.3A patent/CN109914259A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09209312A (en) * | 1996-02-05 | 1997-08-12 | Mitsubishi Heavy Ind Ltd | Bridge erecting device |
| CN101445208A (en) * | 2008-12-29 | 2009-06-03 | 中铁二局股份有限公司 | Hanger for lifting construction of bridge cable |
| CN101525865A (en) * | 2008-12-30 | 2009-09-09 | 中铁二局股份有限公司 | Extroversive posture adjusting method for steel box arch rib section |
| CN104674668A (en) * | 2015-01-19 | 2015-06-03 | 中铁大桥局集团有限公司 | Method for hoisting construction girder sections through cables |
| CN104790300A (en) * | 2015-05-19 | 2015-07-22 | 中铁大桥局集团有限公司 | Flexible pier-side girder erecting platform and construction method thereof |
| CN207003260U (en) * | 2017-07-01 | 2018-02-13 | 中铁十八局集团第二工程有限公司 | Adjustable shoulder pole girder for cable crane lifting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668391A (en) * | 2021-08-03 | 2021-11-19 | 中交路桥建设有限公司 | Double-width arch rib synchronous installation method of half-through steel box basket arch bridge |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190621 |
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| WW01 | Invention patent application withdrawn after publication |