CN105464066A - Construction method for detaching large-span high-fall Belfast truss with closed beam slab - Google Patents
Construction method for detaching large-span high-fall Belfast truss with closed beam slab Download PDFInfo
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- CN105464066A CN105464066A CN201511002446.9A CN201511002446A CN105464066A CN 105464066 A CN105464066 A CN 105464066A CN 201511002446 A CN201511002446 A CN 201511002446A CN 105464066 A CN105464066 A CN 105464066A
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- bailey bracket
- single pin
- wire rope
- pin bailey
- construction method
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C5/00—Mechanisms for lifting ships vertically
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- Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a construction method for detaching a large-span high-fall Belfast truss with a closed beam slab. The construction method includes the following steps that S1, construction preparation is carried out, embedded holes and hoisting holes corresponding to single Belfast truss frames in a one-to-one correspondence mode are arranged in the closed beam slab in advance, each embedded hole is located in the middle of the corresponding single Belfast truss frame, and each hoisting hole is located in the end of the corresponding single Belfast truss frame; S2, a winch is moved to the position near each embedded hole, a steel wire rope of the winch extends and is tied with the end of the corresponding single Belfast truss frame along the embedded hole, hoisting equipment is moved to the position near each hoisting hole, and a steel wire rope of the hoisting equipment extends into and is tied with the end of the corresponding single Belfast truss frame along the hoisting hole; S3, each single Belfast truss frame is hoisted; and S4, the steps from S2 to S3 are repeated, and all the single Belfast truss frames are detached sequentially. The construction method has the advantages of being not limited by the large span of the Belfast truss, avoiding overwater operation, being short in hoisting stroke, being high in efficiency and the like.
Description
Technical field
The present invention relates to technical field of building construction, particularly relate to the construction method of the Bailey bracket dismounting that a kind of large span height drop top board is closed.
Background technology
Current Bailey bracket truss principal is applied more in bridge engineering, and also less as the application of creation of vertical ship elevator top plate girder construction truss principal, and top beam slab Bailey bracket truss principal is removed at high-altitude operation at sea, and execution conditions are complicated.Such as, existing Goupitan reaches 18m across span of the beam and the plank in room, first order vertical ship lift ship railway carriage or compartment, the top board at top is all closed, high-altitude is waterborne carries out dismounting operation, Bailey bracket after dismounting is transported from waterborne by marine equipments such as cargo ships, completes dismounting work, and whole demolishing process is extremely loaded down with trivial details, dangerous high, very high requirement is proposed to constructor.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, the construction method of the Bailey bracket dismounting that short, that efficiency the is high large span height drop top board of stroke is closed that provides a kind of and be not subject to the restriction of Bailey bracket large span, avoids operation at sea, lifts by crane.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
The construction method that the Bailey bracket that large span height drop beam slab is closed is removed, comprises the steps:
S1: preparation of construction; Closed beam slab is preset and single Pin Bailey bracket embedded hole and hang thing hole one to one, described embedded hole is positioned at the middle part of every Pin Bailey bracket, described in hang the end that thing hole is positioned at every Pin Bailey bracket;
S2: hoist engine is moved to by embedded hole, steel wire rope of windlass stretches into along embedded hole and fastens the middle part in single Pin Bailey bracket; Moved to by lifting appliance and hang by thing hole, lifting appliance wire rope stretches into along hanging thing hole and fastens the single Pin Bailey bracket end in correspondence;
S3: single Pin Bailey bracket lifting; Specifically comprise:
S31: steel wire rope of windlass tightens up, cuts off the embedded fixing component at described single Pin Bailey bracket two ends, and the connector between adjacent two Pin Bailey brackets;
S32: steel wire rope of windlass stops after driving described single Pin Bailey bracket decline 2 ~ 3m, lifting appliance rope hoisting, and steel wire rope of windlass declines, and keeps single Pin Bailey bracket to rotate in same plane, until single Pin Bailey bracket is vertical;
S33: lifting appliance wire rope upwards promotes described single Pin Bailey bracket, until hang out from hanging in thing hole;
S4: repeat step S2 to step S3, remove each single Pin Bailey bracket successively, until complete.
Further improvement as technique scheme:
The two ends of described single Pin Bailey bracket are equipped with a horizontal bearing point, in described step S32, before steel wire rope of windlass drives described single Pin Bailey bracket decline 2 ~ 3m, first in single Pin Bailey bracket, fasten a rope, described cable traction list Pin Bailey bracket horizontally rotates, until single Pin Bailey bracket departs from horizontal bearing point.
When removing Pin Bailey bracket second from the bottom, by temporary fixed for last Pin Bailey bracket.
When removing last Pin Bailey bracket, first temporary fixed, then adopt hanging ladder as the safety operation frame carrying out cutting off operation in step S31.
The preparation of construction of described step S1 also comprises, and removes the scaffold tube bearing bent frame above Bailey bracket, and by each single Pin Bailey bracket number consecutively.
Described scaffold tube bearing bent frame is set up from hanging thing hole the cat ladder that dismounting personnel enter Bailey bracket, then set up bamboo springboard between single Pin Bailey bracket after removing, and to construct passage and job platform as dismounting personnel.
In described step S1, when roof beam board concrete is built, pre-buried pipeline is as embedded hole.
Described steel wire rope of windlass, lifting appliance wire rope are the bright wire rope that diameter is not less than φ 16mm.
Compared with prior art, the invention has the advantages that:
The construction method that the Bailey bracket that a kind of large span height drop beam slab of the present invention is closed is removed, an overall Bailey truss is divided into multiple single Pin Bailey bracket remove one by one, reduce difficulty of construction, presetting preburied hole and hang thing hole on closed beam slab, for lifting is prepared.During construction, steel wire rope of windlass fastens the middle part (center of gravity or close to center of gravity place) in single Pin Bailey bracket by embedded hole, lifting appliance wire rope fastens end in single Pin Bailey bracket by hanging thing hole, single Pin Bailey bracket lifting, rotate until vertically in same plane, hang out by hanging thing hole, single Pin Bailey bracket hangs out after vertically by horizontally rotating, not by the restriction of Bailey truss large span, operating personnel carry out constructing operation on Bailey truss and beam slab, avoid operation at sea, lifting stroke is short, and efficiency is high.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the construction method of the Bailey bracket dismounting that large span height drop beam slab of the present invention is closed.
Fig. 2 is embedded hole of the present invention and the layout schematic top plan view of hanging thing hole.
Fig. 3 is embedded hole of the present invention and the layout schematic cross-section hanging thing hole.
Fig. 4 is the schematic diagram one of single Pin Bailey bracket of the present invention in lifting process.
Fig. 5 is the schematic diagram two of single Pin Bailey bracket of the present invention in lifting process.
Fig. 6 is the schematic diagram three of single Pin Bailey bracket of the present invention in lifting process.
In figure, each label represents:
1, embedded hole; 2, thing hole is hung; 3, hoist engine; 4, steel wire rope of windlass; 5, lifting appliance; 6, lifting appliance wire rope.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the present invention is described in further detail.
Fig. 1 to Fig. 5 shows the embodiment of the construction method of the Bailey bracket dismounting that a kind of large span height drop beam slab of the present invention is closed, and it comprises the steps:
S1: preparation of construction; The Bailey bracket of entirety is divided into multiple single Pin Bailey bracket to remove successively, closed beam slab is preset and single Pin Bailey bracket embedded hole 1 and hang thing hole 2 one to one, embedded hole 1 is positioned at the middle part of every Pin Bailey bracket, hangs the end that thing hole 2 is positioned at every Pin Bailey bracket;
S2: hoist engine 3 is moved to embedded hole 1 other, steel wire rope of windlass 4 stretches into along embedded hole 1 and fastens the middle part in single Pin Bailey bracket; Moved to by lifting appliance 5 and hang side, thing hole 2, lifting appliance wire rope 6 stretches into along hanging thing hole 2 and fastens the single Pin Bailey bracket end in correspondence; Steel wire rope of windlass 4 stretches into along embedded hole 1 and fastens the middle part in single Pin Bailey bracket, to fasten center of gravity or better close to center of gravity place in the middle part of single Pin Bailey bracket, acutely rocks after avoiding lifting.
S3: single Pin Bailey bracket lifting; Specifically comprise:
S31: steel wire rope of windlass 4 tightens up, cuts off the embedded fixing component at single Pin Bailey bracket two ends, and the connector between adjacent two Pin Bailey brackets; Avoid other articles to produce lifting to interfere.
S32: steel wire rope of windlass 4 stops after driving single Pin Bailey bracket decline 2 ~ 3m, and lifting appliance wire rope 6 promotes, and steel wire rope of windlass 4 declines, and keeps single Pin Bailey bracket to rotate in same plane, until single Pin Bailey bracket is vertical; Rotate in same plane, avoid acutely rocking in lifting process, thus cause security incident.
S33: lifting appliance wire rope 6 upwards promotes single Pin Bailey bracket, until hang out from hanging in thing hole 2; In the present embodiment, lifting appliance wire rope 6 is provided with two Heave Heres in single Pin Bailey bracket, and two Heave Heres are located at same one end, and during lifting, two Heave Heres are lifted by crane simultaneously.
S4: repeat step S2 to step S3, remove each single Pin Bailey bracket successively, until complete.
The construction method that the Bailey bracket that a kind of large span height drop beam slab of the present invention is closed is removed, an overall Bailey truss is divided into multiple single Pin Bailey bracket remove one by one, reduce difficulty of construction, presetting preburied hole 1 and hang thing hole 2, for lifting is prepared on closed beam slab.During construction, steel wire rope of windlass fastens the middle part (center of gravity or close to center of gravity place) in single Pin Bailey bracket by embedded hole, lifting appliance wire rope fastens end in single Pin Bailey bracket by hanging thing hole, single Pin Bailey bracket lifting, rotate until vertically in same plane, hang out by hanging thing hole, single Pin Bailey bracket hangs out after vertically by horizontally rotating, not by the restriction of Bailey truss large span, operating personnel carry out constructing operation on Bailey truss and beam slab, avoid operation at sea, lifting stroke is short, and efficiency is high.
In the present embodiment, the two ends of single Pin Bailey bracket are equipped with a horizontal bearing point, in above-mentioned steps S32, before steel wire rope of windlass 4 drives described single Pin Bailey bracket decline 2 ~ 3m, first in single Pin Bailey bracket, fasten a rope, cable traction list Pin Bailey bracket horizontally rotates, until single Pin Bailey bracket departs from horizontal bearing point.
In the present embodiment, when removing Pin Bailey bracket second from the bottom, by temporary fixed for last Pin Bailey bracket.
In the present embodiment, when removing last Pin Bailey bracket, first temporary fixed, then adopt hanging ladder as the safety operation frame carrying out cutting off operation in step S31.
In the present embodiment, the preparation of construction of step S1 also comprises, and removes the scaffold tube bearing bent frame above Bailey bracket, and by each single Pin Bailey bracket number consecutively.Before construction, by multiple single Pin Bailey bracket from left to right or from right to left number consecutively, be convenient to lifting, the identification of numbering is strong, facilitates demolishing process to carry out in order.
In the present embodiment, scaffold tube bearing bent frame is set up from hanging thing hole 2 cat ladder that dismounting personnel enter Bailey bracket, then set up bamboo springboard between single Pin Bailey bracket after removing, and to construct passage and job platform as dismounting personnel.
In the present embodiment, in step S1, when roof beam board concrete is built, pre-buried pipeline is as embedded hole 1.In the present embodiment, embedded hole 1 and hang thing hole 2 all before concreting just first pre-buried go out, for later construction dismounting is prepared.
In the present embodiment, steel wire rope of windlass 4, lifting appliance wire rope 6 are not less than the bright wire rope of φ 16mm for diameter.
In the present embodiment, the lifting appliance 5 that site layout project is removed in construction is 25t mobile crane, and hoist engine 3 is 10t hoist engine.
Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (8)
1. the construction method that the Bailey bracket that large span height drop beam slab is closed is removed, is characterized in that: comprise the steps:
S1: preparation of construction; The Bailey bracket of entirety is divided into multiple single Pin Bailey bracket to remove successively, closed beam slab is preset and each single Pin Bailey bracket embedded hole (1) and hang thing hole (2) one to one, described embedded hole (1) is positioned at the middle part of every Pin Bailey bracket, described in hang the end that thing hole (2) is positioned at every Pin Bailey bracket;
S2: hoist engine (3) is moved to embedded hole (1) other, steel wire rope of windlass (4) stretches into along embedded hole (1) and fastens the middle part in single Pin Bailey bracket; Moved to by lifting appliance (5) and hang side, thing hole (2), lifting appliance wire rope (6) stretches into along hanging thing hole (2) and fastens the single Pin Bailey bracket end in correspondence;
S3: single Pin Bailey bracket lifting; Specifically comprise:
S31: steel wire rope of windlass (4) tightens up, cuts off the embedded fixing component at described single Pin Bailey bracket two ends, and the connector between adjacent two Pin Bailey brackets;
S32: steel wire rope of windlass (4) stops after driving described single Pin Bailey bracket decline 2 ~ 3m, and lifting appliance wire rope (6) promotes, and steel wire rope of windlass (4) declines, and keeps single Pin Bailey bracket to rotate in same plane, until single Pin Bailey bracket is vertical;
S33: lifting appliance wire rope (6) upwards promotes described single Pin Bailey bracket, until hang out from hanging in thing hole (2);
S4: repeat step S2 to step S3, remove each single Pin Bailey bracket successively, until complete.
2. the construction method that the Bailey bracket that large span height drop beam slab according to claim 1 is closed is removed, it is characterized in that: the two ends of described single Pin Bailey bracket are equipped with a horizontal bearing point, in described step S32, before steel wire rope of windlass (4) drives described single Pin Bailey bracket decline 2 ~ 3m, first in single Pin Bailey bracket, fasten a rope, described cable traction list Pin Bailey bracket horizontally rotates, until single Pin Bailey bracket departs from horizontal bearing point.
3. the construction method that the Bailey bracket that large span height drop beam slab according to claim 1 and 2 is closed is removed, is characterized in that: when removing Pin Bailey bracket second from the bottom, by temporary fixed for last Pin Bailey bracket.
4. the construction method that the Bailey bracket that large span height drop beam slab according to claim 3 is closed is removed, is characterized in that: when removing last Pin Bailey bracket, adopting hanging ladder as carrying out the safety operation frame cutting off operation in step S31.
5. the construction method that the Bailey bracket that large span height drop beam slab according to claim 1 is closed is removed, it is characterized in that: the preparation of construction of described step S1 also comprises, remove the scaffold tube bearing bent frame above Bailey bracket, and by each single Pin Bailey bracket number consecutively.
6. the construction method that the Bailey bracket that large span height drop beam slab according to claim 5 is closed is removed, it is characterized in that: after described scaffold tube bearing bent frame is removed, the cat ladder that dismounting personnel enter Bailey bracket is set up from hanging thing hole (2), between single Pin Bailey bracket, set up bamboo springboard again, to construct passage and job platform as dismounting personnel.
7. the construction method that the Bailey bracket that large span height drop beam slab according to claim 1 is closed is removed, it is characterized in that: in described step S1, when roof beam board concrete is built, pre-buried pipeline is as embedded hole (1).
8. the Bailey bracket closed of the large span height drop beam slab according to claim 1 construction method of removing, is characterized in that: described steel wire rope of windlass (4), lifting appliance wire rope (6) are not less than the bright wire rope of φ 16mm for diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002446.9A CN105464066B (en) | 2015-12-29 | 2015-12-29 | The construction method that a kind of Bailey bracket of the high drop beam slab closing of large span is removed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002446.9A CN105464066B (en) | 2015-12-29 | 2015-12-29 | The construction method that a kind of Bailey bracket of the high drop beam slab closing of large span is removed |
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| Publication Number | Publication Date |
|---|---|
| CN105464066A true CN105464066A (en) | 2016-04-06 |
| CN105464066B CN105464066B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002446.9A Active CN105464066B (en) | 2015-12-29 | 2015-12-29 | The construction method that a kind of Bailey bracket of the high drop beam slab closing of large span is removed |
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| CN (1) | CN105464066B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117911881A (en) * | 2024-03-20 | 2024-04-19 | 四川公路桥梁建设集团有限公司 | Long-span bridge construction positioning method and related device |
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| EP0854237A1 (en) * | 1997-01-18 | 1998-07-22 | Krupp Fördertechnik GmbH | Laying vehicle and process for placing dismountable bridges |
| MD4011B1 (en) * | 2009-08-26 | 2010-01-29 | Grigore CEAPA | Process for the erection of the cast-in-situ reinforced pile and auxiliary mounter for realization thereof |
| CN102134833A (en) * | 2011-02-21 | 2011-07-27 | 中国一冶集团有限公司 | Construction method for hoisting and disassembling bailey truss |
| CN102900027A (en) * | 2012-10-22 | 2013-01-30 | 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 |
| CN103321213A (en) * | 2013-05-31 | 2013-09-25 | 中交第二航务工程局有限公司 | Integral installation device and method for water reinforcement cage |
| CN204456881U (en) * | 2015-02-09 | 2015-07-08 | 中建二局第一建筑工程有限公司 | Dismantling system of large-span building bailey frame |
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2015
- 2015-12-29 CN CN201511002446.9A patent/CN105464066B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0854237A1 (en) * | 1997-01-18 | 1998-07-22 | Krupp Fördertechnik GmbH | Laying vehicle and process for placing dismountable bridges |
| MD4011B1 (en) * | 2009-08-26 | 2010-01-29 | Grigore CEAPA | Process for the erection of the cast-in-situ reinforced pile and auxiliary mounter for realization thereof |
| CN102134833A (en) * | 2011-02-21 | 2011-07-27 | 中国一冶集团有限公司 | Construction method for hoisting and disassembling bailey truss |
| CN102900027A (en) * | 2012-10-22 | 2013-01-30 | 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 |
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Non-Patent Citations (2)
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| 刘勇、陈建峡: "三峡升船机贝雷架安装与拆除技术", 《中国工程科学》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117911881A (en) * | 2024-03-20 | 2024-04-19 | 四川公路桥梁建设集团有限公司 | Long-span bridge construction positioning method and related device |
| CN117911881B (en) * | 2024-03-20 | 2024-06-11 | 四川公路桥梁建设集团有限公司 | Long-span bridge construction positioning method and related device |
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| CN105464066B (en) | 2017-03-29 |
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