CN107100074A - A kind of lower bearing arch bridge concrete bridge deck construction method - Google Patents
A kind of lower bearing arch bridge concrete bridge deck construction method Download PDFInfo
- Publication number
- CN107100074A CN107100074A CN201710302555.5A CN201710302555A CN107100074A CN 107100074 A CN107100074 A CN 107100074A CN 201710302555 A CN201710302555 A CN 201710302555A CN 107100074 A CN107100074 A CN 107100074A
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- CN
- China
- Prior art keywords
- longeron
- hanging basket
- arch bridge
- concrete
- construction
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- Legal status (The legal status 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 status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
Abstract
A kind of lower bearing arch bridge concrete bridge deck construction method, belongs to concrete bridge girder Major Construction Techniques of Cantilevered Concreting field.Arch bridge main girder construction Hanging Basket of the present invention includes step 1, and the concrete arch bridge girder for saving standard knot is originated using construction with brackets;Step 2, arch bridge main girder construction Hanging Basket and its subsystem are installed, the front end of Hanging Basket is connected with hoist cable;Step 3, adjustment temporary pre-stressed concentration Suo Li;Step 4, colligation vertical concrete beam steel, completes longeron concreting;Step 5, form removal, removes Hanging Basket and is connected with hoist cable, arch bridge main girder construction Hanging Basket is run into next working position is constructed;Step 6, crossbeam casting system, colligation crossbeam concrete reinforcement and prestressing tendon are installed, crossbeam concreting is completed;Step 7, repeat step 36 continues to complete remaining bridge deck concrete structure construction.Simple and quick construction of the present invention, cost is low, and reasonable arrangement longeron is poured, crossbeam is poured and floorings laying opportunity, and construction arranges compact, and operating efficiency is high.
Description
Technical field
Applied the invention belongs to concrete bridge girder Major Construction Techniques of Cantilevered Concreting, more particularly to a kind of lower bearing arch bridge concrete bridge deck
Work method.
Background technology
Lower bearing arch bridge has succinct handsome in appearance, construction, quick construction, bridge floor building height small and to unfavorable geology bar
The advantages of adaptability of part, in China river, the large-scale popularization application of Zhejiang Plain soft clay area.Lower bearing arch bridge is main by encircleing
Rib, girder and substructure composition, girder is typically using box-girder or the beam in length and breadth being made up of longeron, crossbeam and floorings
System girder, for the base-supporting concrete girder using fitting the arch first then fitting the girder working procedure, conventional construction method typically has support
Construction and segment lifting construction.
Stand construction method engineering method is simple, and difficulty of construction is small, but need to carry out corresponding basement process, and to being passed through or logical under bridge
Boat has certain influence;Segment lifting construction needs place to meet relatively large hanging device to march into the arena and operate requirement.
The present invention proposes Hanging basket on front support construction to the base-supporting concrete girder for using fitting the arch first then fitting the girder working procedure,
Front fulcrum of the engineering method by the use of arch bridge hoist cable as Hanging Basket, so as to effectively reduce the stress of Hanging Basket, realize girder without branch
Frame is constructed.
The content of the invention
In order to solve the above-mentioned technical problem, it is an object of the invention to provide a kind of simple and quick construction, held under cost is low
Formula arch bridge concrete bridge deck construction method.
The present invention provides a kind of lower bearing arch bridge concrete bridge deck construction method, including:
Step 1, the concrete arch bridge girder for saving standard knot is originated using construction with brackets;
Step 2, arch bridge main girder construction Hanging Basket and its subsystem are installed, the front end of Hanging Basket is connected with hoist cable;
Step 3, adjustment temporary pre-stressed concentration Suo Li;
Step 4, colligation vertical concrete beam steel, completes longeron concreting;
Step 5, form removal, removes Hanging Basket and is connected with hoist cable, arch bridge main girder construction Hanging Basket is run into next working position enters
Row construction;
Step 6, crossbeam casting system, colligation crossbeam concrete reinforcement and prestressing tendon are installed, crossbeam concreting is completed;
Step 7, repeat step 3-6 continues to complete remaining bridge deck concrete structure construction.
Preferably, the step of arch bridge main girder construction Hanging Basket is installed in the step 2 specifically includes:
Step 2.1:Longeron running gear is laid to have poured on standard knot longeron in the previous section of standard knot longeron to be poured;
Step 2.2:Bearing platform is laid below longeron;Crane system before longeron is laid to hold to connect in bearing platform front portion
Galassing platform and longeron;Lifting body is laid in bearing platform afterbody, and located between bearing platform and longeron;Lay anchor system
To connect the bearing platform and the longeron between crane system before the lifting body and the longeron;
Step 2.3:Coordinated by the lifting body and anchor system and complete Hanging Basket lifting to design attitude, the longeron is installed
Template system, carries out standard knot longeron and pours.
Preferably, the longeron running gear includes
Walking track and propelling cylinder above the longeron,
Extension leg located at the longeron both sides, wherein the bearing platform can be placed in the walking track by the extension leg
On,
Walking rolling wheel structure between the bearing platform and the longeron.
Preferably, crane system includes preceding suspension rod and the helicitic texture being connected with preceding suspension rod before the longeron.
Preferably, the step 5 is specifically included:
Step 5.1:Crane system before longeron template system, longeron is removed, Hanging Basket is removed and is connected with hoist cable;
Step 5.2:Coordinated by the lifting body and anchor system and complete Hanging Basket decentralization;
Step 5.3:Hanging Basket is moved to next working position by the running gear.
Preferably, the step 5.2:Hanging Basket transfers to the position for hanging leg bottom piston shoes contact walking rail top face.
Preferably, the step 2.2 also includes laying rear suspension bar between the anchor system and the lifting body,
For connecting the longeron and the bearing platform.
Preferably, the step 6 includes:
Step 6.1:The running gear of crossbeam casting system is laid to position of constructing;
Step 6.2:The spandrel girder of placement crossbeam casting system, beam template system, suspension system;
Step 6.3:Crossbeam is carried out to pour.
Preferably, a kind of lower bearing arch bridge concrete bridge deck construction method also include laying poured it is pre- between crossbeam
The step of floorings processed, the step is carried out after step 6 between step 7, or is carried out after step 7.
The invention has the advantages that:
A kind of lower bearing arch bridge concrete bridge deck construction method of the present invention, effectively prevent shadow of the pouring construction to traffic under bridge
Ring, realize that fitting the arch first then fitting the girder is constructed, pour section and form local freely-supported, beaer is fastened;Longeron is poured reasonable arrangement, crossbeam is poured
Build and floorings laying opportunity, construction arranges compact, and operating efficiency is high.
Brief description of the drawings
Fig. 1 is a kind of longeron construction elevation of lower bearing arch bridge concrete bridge deck construction method of the invention;
Fig. 2 is the elevation of the longeron casting system of Fig. 1 hogging bridge girder construction hanging baskets;
Fig. 3 is a kind of longeron construction left view of lower bearing arch bridge concrete bridge deck construction method of the invention;
Fig. 4 is a kind of construction of beam elevation of lower bearing arch bridge concrete bridge deck construction method of the invention;
Fig. 5 is a kind of construction of beam left view of lower bearing arch bridge concrete bridge deck construction method of the invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Such as Fig. 1, a kind of lower bearing arch bridge concrete bridge deck construction method of the invention includes:
Step 1, the concrete arch bridge girder for saving standard knot 032 is originated using construction with brackets.The lower bearing arch bridge girder bag
Include longeron 007, crossbeam and prefabricated bridge 031.
Step 2, arch bridge main girder construction Hanging Basket and its subsystem 030 are installed, the front end of Hanging Basket is connected with hoist cable 010, shape
Into Hanging Basket freely-supported stress.
The Hanging Basket is the special construction hanging basket of arch bridge.It can be following Hanging Basket:
Such as Fig. 2-5, the Hanging Basket includes suspension centre system, lifting body 001, anchor before bearing platform 005, longeron template system, longeron
Gu system 004, running gear, crossbeam casting system.During construction, Hanging Basket is operated the movement of position by running gear, utilizes
It is equal that crane system before longeron, lifting body 001 and anchor system 004 build a stress between bearing platform 005 and longeron 007
Weighing apparatus, firm construction operation system.And longeron pour completion at least one save standard knot longeron pour after utilize independent crossbeam
Casting system carries out pouring operation.
Wherein, the bottom of bearing platform 005 is according to bridge floor longitudinal and cross beam location arrangements, as workbench, in dress
If when located at the lower section of longeron 007.
The longeron template system includes low template, side template and longeron hollow cavity inner template, pours and builds up for longeron
Type.
Suspension centre system includes preceding suspension rod 017 and helicitic texture 006, the helicitic texture 006 and preceding suspension rod before the longeron
017 in the vertical direction is connected, and the helicitic texture 006 is generally feed screw nut, and Hanging Basket head is adjusted by suspension rod before arch bridge
Level.Crane system is connected with hoist cable on bridge 010 before the longeron, as shown in Figure 1.Longeron is realized by adjusting helicitic texture 006
The dismounting of preceding suspension centre system.
The lifting body 001 can be hydraulic jack, be arranged at the afterbody of bearing platform 005, and located at load-bearing
Between platform 005 and longeron 007, coordinate the anchor system to adjust Hanging Basket position and tail of the platform in casting process is provided
Portion's fulcrum.
The form realization of the anchor slab with fining twisted steel of anchor system 004, in the middle part of the bearing platform, i.e.,
Before the lifting body 001 and longeron between crane system, and connect the bearing platform 005 and the longeron 007.
The running gear includes walking track 016, propelling cylinder 008, rolling wheel structure 002 of walking, hangs leg 051.It is described
Walking track 016.The propelling cylinder 008 is above longeron.The extension leg 051 is located at the both sides of bearing platform 005, institute
State bearing platform 005 to be placed on the walking track 016 by the extension leg 051, the extension leg 051 is used in walking process
Carry out fulcrum conversion.The walking rolling wheel structure 002, when Hanging Basket needs walking, tilts out the walking rolling wheel structure 002,
Overturn and draw in when need not walk.
Above-mentioned Hanging Basket plays fixation by anchor system in platform casting process, is also adjusted by crane system before longeron
Whole Hanging Basket head level, Hanging Basket tail car is adjusted by lifting body 001, then three's collective effect realizes the firm peace of Hanging Basket
Put.Further improve Hanging Basket balance, between the anchor system and lifting body 001 set rear suspension bar 003, it is described after hang
Bar 003 is independently arranged, and it is assembled by the helicitic texture similar to preceding suspension rod 017.
The crossbeam casting system includes spandrel girder 012, suspension system, beam template system and crossbeam running gear.Institute
State spandrel girder 012 and be located at the inner side that longeron is poured.The suspension system is realized using suspension rod.The beam template system includes side
Template, end template, crossbeam hollow cavity inner template composition, shaping is poured for crossbeam.The crossbeam running gear can be class
It is similar to a set of running gear of longeron running gear.The crossbeam casting system is rear cross beam casting system, and it is poured in longeron
After the completion of, it can be poured as autonomous system.
The step of arch bridge main girder construction Hanging Basket is installed in the step 2 specifically includes:
Step 2.1:Longeron running gear is laid to have poured on standard knot longeron in the previous section of standard knot longeron to be poured.
Step 2.2:Bearing platform 005 is laid below longeron;Crane system is in before the bearing platform 005 before placement longeron
Portion is to connect bearing platform 005 and longeron;Lifting body 001 is laid in the afterbody of bearing platform 005, and located at bearing platform 005
Between longeron;Anchor system 004 is laid between crane system before the lifting body 001 and the longeron to hold described in connection
Galassing platform 005 and the longeron 007.The step 2.2 also includes laying rear suspension bar in the anchor system 004 and the jacking
Between mechanism 001, for connecting the longeron and the bearing platform.
Step 2.3:Coordinated by the lifting body 001 and anchor system 004 and complete Hanging Basket lifting to design attitude, peace
The longeron template system is filled, standard knot longeron is carried out and pours.
Step 3, adjustment temporary pre-stressed concentration Suo Li:The Suo Li of temporary pre-stressed concentration 033 is adjusted according to monitoring data.
Step 4, the concrete reinforcement of colligation longeron 007 to be poured, completes longeron concreting.
Step 5, form removal, removes Hanging Basket and is connected with hoist cable, arch bridge main girder construction Hanging Basket is run into next work
Constructed position.
Step 5.1:Crane system before longeron template system, longeron is removed, Hanging Basket is removed and is connected with hoist cable.
Step 5.2:Coordinated by the lifting body and anchor system and complete Hanging Basket decentralization, Hanging Basket transfers to extension leg bottom
The position of piston shoes contact walking rail top face.
Step 5.3:Hanging Basket is moved to next working position by the running gear.
Step 6, crossbeam casting system, colligation crossbeam concrete reinforcement and prestressing tendon are installed, crossbeam concrete is completed and pours
Build.
Step 6.1:The running gear of crossbeam casting system is laid to position of constructing.
Step 6.2:The spandrel girder of placement crossbeam casting system, beam template system, suspension system.
Step 6.3:Crossbeam is carried out to pour.
Step 7, repeat step 3-6 continues to complete remaining bridge deck concrete structure construction.
Step 8, laying has poured the prefabricated bridge 031 between crossbeam.The step can also be after step 6 and step
Carried out between 7.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the design of the present invention
It is defined with scope.On the premise of design concept of the present invention is not departed from, technical side of this area ordinary person to the present invention
The all variations and modifications that case is made, all should drop into protection scope of the present invention, claimed technology contents of the invention,
Through all recording in detail in the claims.
Claims (9)
1. a kind of lower bearing arch bridge concrete bridge deck construction method, it is characterised in that including:
Step 1, the concrete arch bridge girder for saving standard knot is originated using construction with brackets;
Step 2, arch bridge main girder construction Hanging Basket and its subsystem are installed, the front end of Hanging Basket is connected with hoist cable;
Step 3, adjustment temporary pre-stressed concentration Suo Li;
Step 4, colligation vertical concrete beam steel, completes longeron concreting;
Step 5, form removal, removes Hanging Basket and is connected with hoist cable, arch bridge main girder construction Hanging Basket is run into next working position enters
Row construction;
Step 6, crossbeam casting system, colligation crossbeam concrete reinforcement and prestressing tendon are installed, crossbeam concreting is completed;
Step 7, repeat step 3-6 continues to complete remaining bridge deck concrete structure construction.
2. a kind of lower bearing arch bridge concrete bridge deck construction method according to claim 1, it is characterised in that the step
The step of arch bridge main girder construction Hanging Basket is installed in 2 specifically includes:
Step 2.1:Longeron running gear is laid to have poured on standard knot longeron in the previous section of standard knot longeron to be poured;
Step 2.2:Bearing platform is laid below longeron;Crane system before longeron is laid to hold to connect in bearing platform front portion
Galassing platform and longeron;Lifting body is laid in bearing platform afterbody, and located between bearing platform and longeron;Lay anchor system
To connect the bearing platform and the longeron between crane system before the lifting body and the longeron;
Step 2.3:Coordinated by the lifting body and anchor system and complete Hanging Basket lifting to design attitude, the longeron is installed
Template system, carries out standard knot longeron and pours.
3. a kind of lower bearing arch bridge concrete bridge deck construction method according to claim 2, it is characterised in that the longeron
Running gear includes
Walking track and propelling cylinder above the longeron,
Extension leg located at the bearing platform both sides, wherein the bearing platform can be placed in the walking rail by the extension leg
On road,
Walking rolling wheel structure between the bearing platform and the longeron.
4. a kind of lower bearing arch bridge concrete bridge deck construction method according to claim 2, it is characterised in that the longeron
Preceding crane system includes preceding suspension rod and the helicitic texture being connected with preceding suspension rod.
5. a kind of lower bearing arch bridge concrete bridge deck construction method according to claim 2, it is characterised in that the step
5 specifically include:
Step 5.1:Crane system before longeron template system, longeron is removed, Hanging Basket is removed and is connected with hoist cable;
Step 5.2:Coordinated by the lifting body and anchor system and complete Hanging Basket decentralization;
Step 5.3:Hanging Basket is moved to next working position by the running gear.
6. a kind of lower bearing arch bridge concrete bridge deck construction method according to claim 5, it is characterised in that the step
5.2:Hanging Basket transfers to the position for hanging leg bottom piston shoes contact walking rail top face.
7. a kind of lower bearing arch bridge concrete bridge deck construction method according to claim 2, it is characterised in that the step
2.2 also include laying rear suspension bar between the anchor system and the lifting body, for connecting the longeron and described holding
Galassing platform.
8. a kind of lower bearing arch bridge concrete bridge deck construction method according to claim 1, it is characterised in that the step
6 include:
Step 6.1:The running gear of crossbeam casting system is laid to position of constructing;
Step 6.2:The spandrel girder of placement crossbeam casting system, beam template system, suspension system;
Step 6.3:Crossbeam is carried out to pour.
9. a kind of lower bearing arch bridge concrete bridge deck construction method according to claim 1, it is characterised in that also including paving
If the step of prefabricated bridge between having poured crossbeam, the step is carried out after step 6 between step 7, Huo Zhe
Carried out after step 7.
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109505252A (en) * | 2018-12-17 | 2019-03-22 | 彭国洪 | A kind of simple method of construction of Very Large Bridge |
CN110485311A (en) * | 2019-08-09 | 2019-11-22 | 中铁广州工程局集团有限公司 | A kind of double C shape hook movable hanging basket and construction method |
CN110792038A (en) * | 2019-11-11 | 2020-02-14 | 山东交通学院 | Self-propelled mold hanging tool and method for high-altitude cast-in-place of tie rod arch bridge beam |
CN111691298A (en) * | 2020-04-21 | 2020-09-22 | 中铁广州工程局集团有限公司 | Construction method for wide section of half-through arch bridge |
WO2021212921A1 (en) * | 2020-04-21 | 2021-10-28 | 中铁广州工程局集团有限公司 | Construction system for widened section of half-through arch bridge |
CN113722801A (en) * | 2021-09-07 | 2021-11-30 | 中国铁路设计集团有限公司 | Method for intelligently generating construction stage of concrete beam bridge by suspension casting method |
WO2022041449A1 (en) * | 2020-08-28 | 2022-03-03 | 中铁大桥局集团有限公司 | Construction method for long platform guy-wire hanging basket and main girder section |
CN117604921A (en) * | 2024-01-23 | 2024-02-27 | 贵州省公路工程集团有限公司 | Cast-in-situ longitudinal moving bracket for middle box bottom plate of steel truss web rod-concrete combined arch bridge |
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Cited By (12)
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CN109505252A (en) * | 2018-12-17 | 2019-03-22 | 彭国洪 | A kind of simple method of construction of Very Large Bridge |
CN110485311A (en) * | 2019-08-09 | 2019-11-22 | 中铁广州工程局集团有限公司 | A kind of double C shape hook movable hanging basket and construction method |
CN110485311B (en) * | 2019-08-09 | 2024-03-19 | 中铁广州工程局集团有限公司 | double-C-shaped hook movable hanging basket and construction method |
CN110792038A (en) * | 2019-11-11 | 2020-02-14 | 山东交通学院 | Self-propelled mold hanging tool and method for high-altitude cast-in-place of tie rod arch bridge beam |
CN111691298A (en) * | 2020-04-21 | 2020-09-22 | 中铁广州工程局集团有限公司 | Construction method for wide section of half-through arch bridge |
WO2021212921A1 (en) * | 2020-04-21 | 2021-10-28 | 中铁广州工程局集团有限公司 | Construction system for widened section of half-through arch bridge |
GB2599295A (en) * | 2020-04-21 | 2022-03-30 | China Railway Guangzhou Eng Group Co Ltd | Construction system for widened section of half-through arch bridge |
WO2022041449A1 (en) * | 2020-08-28 | 2022-03-03 | 中铁大桥局集团有限公司 | Construction method for long platform guy-wire hanging basket and main girder section |
GB2608555A (en) * | 2020-08-28 | 2023-01-04 | China Railway Major Bridge Engineering Group Co Ltd | Long platform guy-wire hanging basket and construction method for main girder section |
CN113722801A (en) * | 2021-09-07 | 2021-11-30 | 中国铁路设计集团有限公司 | Method for intelligently generating construction stage of concrete beam bridge by suspension casting method |
CN117604921A (en) * | 2024-01-23 | 2024-02-27 | 贵州省公路工程集团有限公司 | Cast-in-situ longitudinal moving bracket for middle box bottom plate of steel truss web rod-concrete combined arch bridge |
CN117604921B (en) * | 2024-01-23 | 2024-03-29 | 贵州省公路工程集团有限公司 | Cast-in-situ longitudinal moving bracket for middle box bottom plate of steel truss web rod-concrete combined arch bridge |
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Application publication date: 20170829 |