CN107881916A - Couloirs arched aqueduct arch ring lifts single base rib closure construction method - Google Patents
Couloirs arched aqueduct arch ring lifts single base rib closure construction method Download PDFInfo
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- CN107881916A CN107881916A CN201710966962.6A CN201710966962A CN107881916A CN 107881916 A CN107881916 A CN 107881916A CN 201710966962 A CN201710966962 A CN 201710966962A CN 107881916 A CN107881916 A CN 107881916A
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- arch
- aqueduct
- single base
- arch box
- base rib
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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
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses couloirs arched aqueduct arch ring to lift single base rib closure construction method, and arch box precasting yard is set along the lowest point side；Utilize the double fixed cable cranes of group of arrangement on the massif of two sides；Border pier and pier top set steel construction to form combination button tower, withhold separation arrangement, set bank slope dorsal funciculus anchor system；Arch box cross section is overall, longitudinal direction divides multistage prefabricated, and straddle truck is transported below arch box section to main rope, and about 90 are turned to by rotation platform0Double groups of rope loop wheel machines lift installation, single base rib closure arching afterwards.The present invention is using the double fixed cable cranes of group of two sides massif arrangement, arch box swivel in situ in precasting yard, the horizontal integral prefabricated not branch mailbox of arch box, longitudinally divides multistage prefabrication and lifting, the construction method of single base rib closure arching.Big curve arch box swivel facility need not be set, save and take up an area；Beam wind cable during arch box cantilever position need not be set, reduce construction interference；Horizontal not branch mailbox, single base rib closure arching, substantially increase work efficiency, shorten the duration.
Description
Technical field
The present invention relates to arched aqueduct arch ring construction method, more particularly to the super-huge concrete arch type aqueduct arch ring of couloirs
Construction method.
Background technology
Arched aqueduct or arch bridge are built in Valley, traditional arch ring cantilever hanging method is on the mountain of valley two sides
Two pylons are set on body, and using unification button Tower System is withheld, hoist controlling is difficult；Arch box laterally divides more more base ribs of case (slitting)
Closure arching, hoisting process must be provided with wind cable stabilizing measures, and construction interference is big, and process is more, complex process；Arch box precasting yard
Ground is arranged on side massif bottom, but generally ex situ turns to, and need to set the arch box turning radius of larger curve, floor space compared with
Greatly, turn to relative complex.
Imperial field aqueduct is super-huge armored concrete arcuately aqueduct, and arch ring axle is catenary, net rise f0=40m, swear across
Than 1/5, main arch case is single box double room armored concrete variable cross-section arch box, and arch span fades to 5.5m, the high 3.5m of arch box by 12m, main
Encircle clear span 200m, be at present the single span arched aqueduct of largest domestic apart from ground maximum height 130m.
The content of the invention
The technical problem to be solved in the present invention is:Couloirs arched aqueduct arch ring is provided and lifts single base rib closing construction side
Method, the super-huge armored concrete of couloirs arcuately aqueduct arch ring is applicable, is constructed particularly suitable for couloirs landform narrow and small place, is hanged
Arm hoisting process is easily controllable, and lateral stability is good, reduces and sets the interference of wind cable, lifting closure arching speed is fast, in precasting yard
Rotation platform also serves as hoisting platform, and in situ turn to of arch box is lifted by crane, be convenient and swift.
To achieve the above object, the present invention takes following technical proposals：
Suitable for the super-huge armored concrete of couloirs, arcuately aqueduct arch ring multistage lifts the construction method that single base rib joins the two sections of a bridge, etc,
Comprise the steps：
The first step, arch box precasting yard is set along valley the lowest point side；
Second step：Deployment rails straddle truck is used to transport arch box section in precasting yard, and rotation is arranged under main rope center line
Platform also serves as hoisting platform；
3rd step, utilize aqueduct two sides massif anchoring main rope arrangement cable crane；
4th step, arrange dorsal funciculus anchor structure, including button tower, dorsal funciculus anchor structure arrangement；
5th step, after prefabricated arch box intensity reaches requirement, arch box is transported to below cable crane by precasting yard straddle truck, rotation
Platform rotates arch box to lifting orientation；
6th step, cable crane directly lift arch box transport in place, and knotted rope and dorsal funciculus buckle extension installation, consolidate joint；
7th step, the 5th step, the 6th step are repeated, until the lifting of all arch boxes is in place and consolidates, Middle span closing arching.
In 3rd step, in aqueduct two sides, massif sets earth anchor or short pylon anchoring main rope.
The main rope of the cable crane is double fixed cables of group, is set up along aqueduct axis, cable crane sets 4 suspension centres to lift
Arch box.
The button tower sets bank slope dorsal funciculus anchor system using separation arrangement is withheld.
The arch box longitudinally divides multistage prefabricated, horizontal not branch mailbox, single base rib closure arching.
The advantage of the invention is that according to couloirs landform, the spy that arch ring span is big, the liftoff discrepancy in elevation is big, single-piece lift heavy is big
Point, double fixed cable cranes of group are arranged using two sides massif, 4 suspension centres are set, meet large-tonnage lifting component；Arch box is prefabricated
Swivel in situ in, without setting big curve arch box swivel facility, save and take up an area；The horizontal integral prefabricated not branch mailbox of arch box, longitudinal direction
Divide multistage prefabrication and lifting, single base rib closure arching, arch box cantilever installation process is because horizontal resistance to overturning is good, without setting wind
Cable, process simplify, and reduce construction interference, substantially increase work efficiency, shorten the duration.
Brief description of the drawings
Fig. 1 is the construction schematic diagram of the present invention；
Fig. 2 is precasting yard horizontal layout schematic diagram；
Fig. 3 lifts the installation of arch box section for double group cable cranes.
Embodiment
As shown in Figures 1 to 3, arcuately aqueduct arch ring multistage lifts single base rib closing construction to the super-huge armored concrete of couloirs
Method comprises the steps：
The first step, arch box precasting yard 1 is set along the lowest point side；
Second step：Two rail gantry cranes of arrangement are used to transport arch box section in precasting yard, are arranged under main rope center line
One rotation platform also serves as hoisting platform；
3rd step, earth anchor or short pylon anchoring main rope 2 is set to arrange cable crane using aqueduct two sides massif；
4th step, dorsal funciculus anchor structure arrangement, including button tower 3, dorsal funciculus anchor structure 4 are arranged；
5th step, after the prefabricated intensity of arch box 5 reaches requirement, arch box 5 is transported to below cable crane by precasting yard straddle truck, rotation
Turn platform to rotate arch box 5 to lifting orientation；
6th step, double groups of cable cranes directly lift arch box 5 and transported in place, and knotted rope and dorsal funciculus buckle extension installation, consolidate joint；
7th step, the 5th step, the 6th step are repeated, until all arch boxes 5 are lifted in place and consolidated, Middle span closing arching.
In above-mentioned steps, cable crane main rope 2 is double fixed cables of group, is set up along aqueduct axis, cable crane sets 4 and hung
Point lifts arch box, meets large-tonnage lifting component；Button tower 3 sets dorsal funciculus anchor system using separation arrangement, bank slope is withheld；Arch box
5 longitudinal directions divide multistage prefabricated, horizontal not branch mailbox, single base rib closure arching.Compared with arch box is using branch mailbox slitting lifting conventional method,
Good with cantilever installation process lateral stability, without setting wind cable, process simplifies, and reduces the advantage of construction interference.
Below in conjunction with illustrating construction method of the present invention exemplified by the aqueduct of water-control project general main canal dragon field in Guizhou Province：
1st, arch box designs：For catenary arch axis, net rise f0=40m, ratio of rise to span 1/5, main arch case are single box double room reinforcing bar
Concrete variable cross-section arch box, arch span fade to 5.5m, the high 3.5m of arch box, main arch clear span 200m, apart from ground maximum height by 12m
130m, it is the single span arched aqueduct of largest domestic at present.
2nd, cable crane designs：Enter port and make full use of massif condition, using without tower crane formula anchorage.It is short provided with 4.5m to go out port
Tower crane, tower crane use Ф 325mm × 12mm steel pipe concrete truss structures.Main rope：Using 2 groups of 12 Ф 62 (6 × 37S+IWR)
Steel wire rope, two groups of main ropes are laterally set, the center spacing of two groups of main ropes is 14m, 2 sport cars and 2 suspension centres is set on single group main rope, often
Individual design of lifting points lift heavy 75t, four suspension centre overall design lift heavy 300t, the lifting of large-tonnage arch box can be achieved.Span is distributed by import
It is followed successively by outlet：Cable main span 550m, it is 120m to go out anchor span footpath behind port, main rope work sag 44m, the maximum total ropes of two groups of ropes
Power 1532.2t.
3rd, Deethanizer design is detained：Arrangement form is separated with cable tower crane using button tower, it is a part of by the use of boundary pier shaft as tower body,
Pier top sets steel construction to form combination button tower.
4th, precasting yard：The lineament according to residing for this aqueduct project, precasting yard are arranged in valley outlet side below aqueduct and delayed
Hillside fields face.Two 150t straddle trucks of configuration transport arch boxes, and main rope lower section sets steering hoisting platform in precasting yard.
5th, arch box is prefabricated and lifts：In addition to arch springing section floor projection 15m is using support cast-in-place construction, remaining section of arch box uses
Precast assembly, i.e., laterally 26 sections are divided in integral prefabricated (i.e. monolithic arch box), longitudinal direction, and single segmental maximum weight 242t, most long 9m are empty
Middle Inclined cable-stayed cantilever, single base rib closure arching.
Claims (5)
1. couloirs arched aqueduct arch ring lifts single base rib closure construction method, it is characterised in that comprises the steps of：
The first step, arch box precasting yard (1) is set along valley the lowest point side；
Second step：Deployment rails straddle truck is used to transport arch box section in precasting yard, and rotation platform is arranged under main rope center line
Also serve as hoisting platform；
3rd step, main rope (2) arrangement cable crane is anchored using aqueduct two sides massif；
4th step, arrange dorsal funciculus anchor structure, including button tower (3), dorsal funciculus anchor structure (4) arrangement；
5th step, after prefabricated arch box (5) intensity reaches requirement, arch box (5) is transported to below cable crane by precasting yard straddle truck, rotation
Turn platform by arch box (5) rotation to lifting orientation；
6th step, cable crane directly lift arch box (5) transport in place, and knotted rope and dorsal funciculus buckle extension installation, consolidate joint；
7th step, the 5th step, the 6th step are repeated, until all arch boxes (5) lifting is in place and consolidates, Middle span closing arching.
2. couloirs arched aqueduct arch ring according to claim 1 lifts single base rib closure construction method, it is characterised in that：
In 3rd step, in aqueduct two sides, massif sets earth anchor or short pylon anchoring main rope (2).
3. couloirs arched aqueduct arch ring according to claim 1 lifts single base rib closure construction method, it is characterised in that：
The main rope (2) of the cable crane is double fixed cables of group, is set up along aqueduct axis, cable crane sets 4 suspension centres to lift arch box
(5)。
4. couloirs arched aqueduct arch ring according to claim 1 lifts single base rib closure construction method, it is characterised in that：
The button tower (3) sets bank slope dorsal funciculus anchor system using separation arrangement is withheld.
5. couloirs arched aqueduct arch ring according to claim 1 lifts single base rib closure construction method, it is characterised in that：
The arch box (5) longitudinally divides multistage prefabricated, horizontal not branch mailbox, single base rib closure arching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966962.6A CN107881916A (en) | 2017-10-17 | 2017-10-17 | Couloirs arched aqueduct arch ring lifts single base rib closure construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966962.6A CN107881916A (en) | 2017-10-17 | 2017-10-17 | Couloirs arched aqueduct arch ring lifts single base rib closure construction method |
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| CN107881916A true CN107881916A (en) | 2018-04-06 |
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| CN201710966962.6A Pending CN107881916A (en) | 2017-10-17 | 2017-10-17 | Couloirs arched aqueduct arch ring lifts single base rib closure construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629424A (en) * | 2018-12-06 | 2019-04-16 | 清华大学 | The construction method on pole bracket and the composite steel concrete bridge concrete edge of a wing using pole bracket |
| CN110685232A (en) * | 2019-11-05 | 2020-01-14 | 广西路桥工程集团有限公司 | Method for installing support-free arch ring of concrete-filled steel tube arch bridge |
| CN114277673A (en) * | 2021-12-24 | 2022-04-05 | 中交三公局第三工程有限公司 | Method for assembling large-span large-dip-angle basket-type steel beam and arch segment |
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| CN102808382A (en) * | 2012-08-28 | 2012-12-05 | 中铁七局集团第五工程有限公司 | Method for constructing arch bridge in V-shaped valley without tower |
| CN106284080A (en) * | 2016-08-11 | 2017-01-04 | 中铁十二局集团第二工程有限公司 | Continuous rigid frame aqueduct closure segment construction method |
| JP2017078297A (en) * | 2015-10-20 | 2017-04-27 | ケイコン株式会社 | Connected concrete block body for arch bridge structure, and deck-type arch bridge |
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-
2017
- 2017-10-17 CN CN201710966962.6A patent/CN107881916A/en active Pending
Patent Citations (5)
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| CN102808382A (en) * | 2012-08-28 | 2012-12-05 | 中铁七局集团第五工程有限公司 | Method for constructing arch bridge in V-shaped valley without tower |
| JP2017078297A (en) * | 2015-10-20 | 2017-04-27 | ケイコン株式会社 | Connected concrete block body for arch bridge structure, and deck-type arch bridge |
| CN106284080A (en) * | 2016-08-11 | 2017-01-04 | 中铁十二局集团第二工程有限公司 | Continuous rigid frame aqueduct closure segment construction method |
| CN106988219A (en) * | 2017-02-28 | 2017-07-28 | 济南城建集团有限公司 | A kind of method for connecting reel and cable hoisting Arch Bridge Construction being carried out using it |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629424A (en) * | 2018-12-06 | 2019-04-16 | 清华大学 | The construction method on pole bracket and the composite steel concrete bridge concrete edge of a wing using pole bracket |
| CN110685232A (en) * | 2019-11-05 | 2020-01-14 | 广西路桥工程集团有限公司 | Method for installing support-free arch ring of concrete-filled steel tube arch bridge |
| CN114277673A (en) * | 2021-12-24 | 2022-04-05 | 中交三公局第三工程有限公司 | Method for assembling large-span large-dip-angle basket-type steel beam and arch segment |
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Application publication date: 20180406 |
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