CN106567342A - Method for erecting precast beam of super-wide bridge deck at narrow space by using high-low leg gantry crane - Google Patents

Method for erecting precast beam of super-wide bridge deck at narrow space by using high-low leg gantry crane Download PDF

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Publication number
CN106567342A
CN106567342A CN201610989441.8A CN201610989441A CN106567342A CN 106567342 A CN106567342 A CN 106567342A CN 201610989441 A CN201610989441 A CN 201610989441A CN 106567342 A CN106567342 A CN 106567342A
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CN
China
Prior art keywords
precast
gantry crane
bridge
supporting leg
bridge erector
Prior art date
Application number
CN201610989441.8A
Other languages
Chinese (zh)
Inventor
王琼
金仁兴
王伟
Original Assignee
上海市基础工程集团有限公司
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 上海市基础工程集团有限公司 filed Critical 上海市基础工程集团有限公司
Priority to CN201610989441.8A priority Critical patent/CN106567342A/en
Publication of CN106567342A publication Critical patent/CN106567342A/en

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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

Abstract

The present invention relates to a method for erecting a precast beam of a super-wide bridge deck at a narrow space by using a high-low leg gantry crane. The method comprises the concrete steps of installing a traversing type bridge-erecting machine and the high-low leg gantry crane at a beam hoisting area, erecting the precast beam at the beam hoisting area through the traversing of the bridge-erecting machine, completing the erection of the precast beam at the beam hoisting area, and erecting the precast beam in a beam-on-beam conveyance way. By applying the method, the problems of conveyance and erection of precast beams at narrow spaces can be well solved, the safety in the conveyance and erection processes of precast beams is guaranteed, and the working efficiency is greatly improved. The method in which the high-low leg gantry crane and the traversing type bridge-erecting machine are matched for construction is applied to complex terrains and narrow spaces for the first time, and the successful experience can guide the engineering construction under the type conditions.

Description

Narrow space Super wide bridge height leg gantry crane sets up precast beam method
Technical field
The present invention relates to a kind of narrow space erection of precast beams method, especially a kind of pre- for complicated landform Super wide bridge The installation method of beam processed.
Background technology
At present, in the design of city and highway bridge, precast beam is widely used.But Bridges in Our Country with Rapid speed is in development, including city, mountain area etc..And the big small stream mouth of Yibin City closes on to southern wide traffic transformation and landscape engineering The Changjiang river, belongs to the Changjiang river second-order terrace, belongs to eroded deposit landform, and second-order terrace area near Project Areas in the Changjiang river is extremely narrow and small.This Engineering is mainly underground interchange and constitutes with elevated bridge, forms the form of Bridge-wire fusing time, and elevated bridge bridge floor the widest part reaches To 68m.It is due to narrow field and with a varied topography, and affected restriction, the transporting precast beams of routine and erection by tunnel structure Condition cannot meet, therefore the transport channel of precast beam is into the key point of whole engineering erection of precast beams.
The content of the invention
The present invention is to solve the technical problem of narrow space erection of precast beams, and a kind of narrow space Super wide bridge is provided Height leg gantry crane sets up precast beam method.
The present invention solves the technical scheme that adopted of above-mentioned technical problem:A kind of narrow space Super wide bridge height leg door Suspension bracket sets prefabricated beam method, it is characterised in that:Using height leg gantry crane, can cross sliding type Bridge Erector erecting beam be divided into two ranks Section:
First stage:Bale handle area erection of precast beams
(1)Installation height leg gantry crane, Bridge Erector
In bale handle area, upper beam point is respectively mounted Bridge Erector and the high supporting leg of gantry crane, the high supporting leg of Bridge Erector cross moving track connection gantry crane;
(2)Prefabricated beam support is installed
Cleaning bearing pad stone top surface simultaneously marks support position center line by design drawing, by support position center line erection support;
(3)Transporting precast beams
Bridge Erector is traversing to be in state of setting a roof beam in place to gantry crane, and beam car transports beam immediately below Bridge Erector;
(4)Precast beam lifting sets up
Bridge Erector transfers suspender, and steel wire rope is revealed all the details binding precast beam, and Bridge Erector lifts precast beam, is lifted to after predetermined altitude along horizontal Move track carries out transverse shifting to the direction that precast beam makes a reservation for set up;
(5)Precast beam is accurately in place
Bridge Erector laterally moves to precast beam slowly falls after the predetermined decorating position of precast beam, drops down onto 10cm directly over bearing, Check that precast beam is installed to support position by axis after errorless;
Second stage:Transporting precast beams set up
(1)The low supporting leg of installation height leg gantry crane, hoisting overhead travelling crane
Cross moving track on high supporting leg is withdrawn, high supporting leg is increased, low supporting leg and gantry crane crossbeam, gantry crane hoisting overhead travelling crane are installed;
(2)Transporting precast beams
In operational readiness immediately below gantry crane, ground beam car transports beam under gantry crane to beam car on beam, gantry crane lifting precast beam, Put to beam on beam car, beam is transported to bridge formation drive end unit by beam car on beam, realize feeding beam construction technology on beam.
The first stage(1)In step, high supporting leg combines architectonical with Bridge Erector cross moving track.
The second stage(1)In step, high supporting leg combines architectonical with low supporting leg.
The present invention useful achievement be:The present invention can greatly put forward the installation rate of precast beam, while guaranteeing what is constructed Security;The present invention is first using height leg gantry crane and cross moving track combined system in narrow space and Super wide bridge construction Method, its successful experience can instruct type engineering construction.
Description of the drawings
Fig. 1 is installation height leg gantry crane, Bridge Erector, installs prefabricated beam support, transporting precast beams schematic diagram;
Fig. 2 is that precast beam lifting sets up schematic diagram;
Fig. 3 is the accurate schematic diagram in place of precast beam;
Fig. 4 is the low supporting leg of installation height leg gantry crane, hoisting overhead travelling crane schematic diagram;
Fig. 5 is that beam car is in operational readiness immediately below gantry crane on beam, and beam is transported schematic diagram under gantry crane by ground beam car;
Fig. 6 is that gantry crane lifts by crane precast beam, is put to beam on beam car, and beam is transported to bridge formation drive end unit and is illustrated by beam car on beam Figure.
Specific embodiment
With reference to instantiation, embodiments of the present invention are expanded on further.
The present invention is directed to the difficult point of transporting precast beams erection method, and measure is:
(1)According to site contour geological condition, gantry crane basis, mass of foundation of keeping under strict control are determined.
(2)Gantry crane height of landing leg and load are calculated according to actual conditions, accurate processing, combination(Supporting leg+cross moving track, Gantry crane supporting leg+gantry crane crossbeam)Elevation is mutually matched with bridge elevation.
(3)It is accurate that gantry crane supporting leg and cross moving track are installed, meet Bridge Erector bale handle and beam car beam transporting passage space, protect Must not collide during card fortune beam.Cross moving track must keep smooth safe.
(4)Meticulously establishment Design of Construction Organization and special scheme, arrange reasonable erection of precast beams sequence of construction, gantry crane with Bridge Erector must carry out signalman by accredited and special messenger.
With reference to the big small stream mouth of Yibin City to southern wide traffic transformation and the construction of landscape engineering erection of precast beams(Fig. 1 to Fig. 6), explanation The specific implementation method of the present invention:
The erection of precast beams of the present invention is divided into two stages.
First stage concrete steps:(Fig. 1 to Fig. 3)
(1)Installation height leg gantry crane, Bridge Erector
In bale handle area, upper beam point is respectively mounted Bridge Erector and the high supporting leg of gantry crane, the high supporting leg of Bridge Erector cross moving track connection gantry crane
(2)Prefabricated beam support is installed
Cleaning bearing pad stone top surface simultaneously marks support position center line by design drawing, by support position center line erection support.
(3)Transporting precast beams
Bridge Erector is traversing to be in state of setting a roof beam in place to gantry crane, and beam car transports beam immediately below Bridge Erector.
(4)Precast beam lifting sets up
Bridge Erector transfers suspender, and steel wire rope is revealed all the details binding precast beam, and Bridge Erector lifts precast beam, is lifted to after predetermined altitude along horizontal Move track carries out transverse shifting to the direction that precast beam makes a reservation for set up.
(5)Precast beam is accurately in place
Bridge Erector laterally moves to precast beam slowly falls after the predetermined decorating position of precast beam, drops down onto 10cm directly over bearing, Check that precast beam is installed to support position by axis after errorless.
Second stage concrete steps:(Fig. 4 to Fig. 6)
After the completion of first stage i.e. bale handle area erection of precast beams, set up into second stage transporting precast beams.
(1)The low supporting leg of installation height leg gantry crane, hoisting overhead travelling crane
Cross moving track on high supporting leg is withdrawn, high supporting leg is increased, low supporting leg and gantry crane crossbeam, gantry crane hoisting overhead travelling crane are installed.
(2)Transporting precast beams
In operational readiness immediately below gantry crane, ground beam car transports beam under gantry crane to beam car on beam, gantry crane lifting precast beam, Put to beam on beam car, beam is transported to bridge formation drive end unit by beam car on beam, realize feeding beam construction technology on beam.

Claims (3)

1. a kind of narrow space Super wide bridge height leg gantry crane sets up precast beam method, it is characterised in that:Using height leg gantry crane, Can cross sliding type Bridge Erector erecting beam be divided into two stages:
First stage:Bale handle area erection of precast beams
(1)Installation height leg gantry crane, Bridge Erector
In bale handle area, upper beam point is respectively mounted Bridge Erector and the high supporting leg of gantry crane, the high supporting leg of Bridge Erector cross moving track connection gantry crane;
(2)Prefabricated beam support is installed
Cleaning bearing pad stone top surface simultaneously marks support position center line by design drawing, by support position center line erection support;
(3)Transporting precast beams
Bridge Erector is traversing to be in state of setting a roof beam in place to gantry crane, and beam car transports beam immediately below Bridge Erector;
(4)Precast beam lifting sets up
Bridge Erector transfers suspender, and steel wire rope is revealed all the details binding precast beam, and Bridge Erector lifts precast beam, is lifted to after predetermined altitude along horizontal Move track carries out transverse shifting to the direction that precast beam makes a reservation for set up;
(5)Precast beam is accurately in place
Bridge Erector laterally moves to precast beam slowly falls after the predetermined decorating position of precast beam, drops down onto 10cm directly over bearing, Check that precast beam is installed to support position by axis after errorless;
Second stage:Transporting precast beams set up
(1)The low supporting leg of installation height leg gantry crane, hoisting overhead travelling crane
Cross moving track on high supporting leg is withdrawn, high supporting leg is increased, low supporting leg and gantry crane crossbeam, gantry crane hoisting overhead travelling crane are installed;
(2)Transporting precast beams
In operational readiness immediately below gantry crane, ground beam car transports beam under gantry crane to beam car on beam, gantry crane lifting precast beam, Put to beam on beam car, beam is transported to bridge formation drive end unit by beam car on beam, realize feeding beam construction technology on beam.
2. narrow space Super wide bridge height leg gantry crane according to claim 1 sets up precast beam method, it is characterised in that: The first stage(1)In step, high supporting leg combines architectonical with Bridge Erector cross moving track.
3. narrow space Super wide bridge height leg gantry crane according to claim 1 sets up precast beam method, it is characterised in that: The second stage(1)In step, high supporting leg combines architectonical with low supporting leg.
CN201610989441.8A 2016-11-10 2016-11-10 Method for erecting precast beam of super-wide bridge deck at narrow space by using high-low leg gantry crane CN106567342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610989441.8A CN106567342A (en) 2016-11-10 2016-11-10 Method for erecting precast beam of super-wide bridge deck at narrow space by using high-low leg gantry crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610989441.8A CN106567342A (en) 2016-11-10 2016-11-10 Method for erecting precast beam of super-wide bridge deck at narrow space by using high-low leg gantry crane

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110606447A (en) * 2019-10-15 2019-12-24 合肥正浩机械科技有限公司 Lifting and carrying device for precast beam of bridge girder erection machine on beam transporting vehicle and working method of lifting and carrying device
WO2020233501A1 (en) * 2019-05-23 2020-11-26 中铁二局集团有限公司 Construction method for upright lifting of large-tonnage box girder to bridge, and erection method for large-tonnage box girder

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JP2012202076A (en) * 2011-03-24 2012-10-22 Toda Constr Co Ltd Construction device of overhead viaduct and construction method of overhead viaduct
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CN106087775A (en) * 2016-08-08 2016-11-09 郑州新大方重工科技有限公司 For setting up intercity track and subway U beam self-balancing via hole type Bridge Erector

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020233501A1 (en) * 2019-05-23 2020-11-26 中铁二局集团有限公司 Construction method for upright lifting of large-tonnage box girder to bridge, and erection method for large-tonnage box girder
CN110606447A (en) * 2019-10-15 2019-12-24 合肥正浩机械科技有限公司 Lifting and carrying device for precast beam of bridge girder erection machine on beam transporting vehicle and working method of lifting and carrying device

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