CN107288039A - Railway Through Steel concrete combination bridge floor steel truss girder construction method - Google Patents
Railway Through Steel concrete combination bridge floor steel truss girder construction method Download PDFInfo
- Publication number
- CN107288039A CN107288039A CN201710433966.8A CN201710433966A CN107288039A CN 107288039 A CN107288039 A CN 107288039A CN 201710433966 A CN201710433966 A CN 201710433966A CN 107288039 A CN107288039 A CN 107288039A
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- steel
- construction
- steel truss
- girder
- truss girder
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Classifications
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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
-
- 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses railway Through Steel concrete combination bridge floor steel truss girder construction method, construction technology process includes steel truss girder assembling construction, temporary rest pier construction, steel truss girder hauling construction, steel truss beam support are installed, bridge deck concrete is constructed, building site application, using launching method organizing construction, hand fit's loop wheel machine assembly girder steel, vertex top girder steel is played by particular design after the completion of assembly, up and down slideway facility is installed, in the dilatory advance of elevator machine travel lower girder steel, fall beam facility temporarily using pier top, top lifting girder steel, up and down slideway is removed, falls beam in place.The present invention, which is applied to railway Through Steel concrete combination bridge floor steel truss girder design and construction technique, to be had strong adaptability, can reduce rail top to beam bottom height, bridge down train headroom problem is effectively solved, structure integral rigidity is big, noise is smaller, overall economic efficiency is notable.
Description
Technical field
It is a kind of railway Through Steel concrete combination bridge floor steel truss specifically the present invention relates to conveying equipment field
Beam construction method.
Background technology
The bridge deck form that China railways steel truss girder is continued to use always is open bridge floors, and not only noise is big, pollution environment, Er Qie
Lateral amplitude of vibration overrun issues are occurred in that in railway speed increase.Although taking some reinforcement measures, effect is not very obvious.
Steel truss joist steel concrete combination floorings are the combining structures of steel truss and concrete, and concrete slab is indulged with steel truss
The integral common stress of crossbeam shape.Structural steel amount is relatively low, and the rigidity of structure is remarkably reinforced, compared with other forms, is built
Building height can accordingly be reduced, and improve stress performance, while construction costs is reduced, late maintaining maintenance load less, is used
During dilatory method erection construction so that construction is more convenient, can reduce the influence to ground reason traffic.
With the development of railway construction in China, railroad bridge design standard is improved, and original steel truss girder uses open bridge floors form
It is difficult to the requirement for meeting lateral stiffness and comfort level, so use has quarrel bridge floor more now.Freely-supported steel truss girder design in recent years, system
Make and erection technique achieves significant achievement, but the bridge floor form combined entirely is using less.
The content of the invention
It is an object of the invention to provide a kind of railway Through Steel concrete combination bridge floor steel truss girder construction method, have
Strong adaptability, rail top to beam bottom height can be reduced, effectively solve bridge down train headroom problem, structure integral rigidity is big, noise compared with
Small, overall economic efficiency is notable.
The present invention is achieved through the following technical solutions：A kind of railway Through Steel concrete combination bridge floor steel truss girder construction party
Method, construction technology process is steel truss girder assembling construction, temporary rest pier construction, the installation of steel truss girder hauling construction, steel truss beam support, bridge
Surface concrete construction, building site application.Construction technology of the present invention uses launching method organizing construction, that is, utilizes roadbed after abutment platform
And abutment is that temporary rest pier carries out girder steel consolidation service, hand fit's loop wheel machine assembly girder steel；Pass through particular design after the completion of assembly
Rise vertex top girder steel, install up and down slideway facility, using two 10t hoist engine by two three walk five pulley
Group, in the way of flat slope is dilatory, the vertical shift of longitudinal pull girder steel is by girder steel design attitude, using the adjustment facility of pier top,
Girder steel is adjusted to design attitude, falls beam facility temporarily using pier top, top lifting girder steel removes up and down slideway, falls beam in place, then
Construction bridge deck and road are arranged in each lower-chord panel point of steel truss girder, and glide path elongated arrangement on buttress and related roadbed is removed
Temporary rest pier.
Above-mentioned steel truss girder assembling construction according to from bottom to up, after first lower plane the inside installation principle, form triangle as early as possible
Shape rock-steady structure, then installs plane, and the beam in length and breadth for often installing two sections is the brace for installing a section, often installs two sections
Brace is to install one to save top bracing, the like assembled complete.
Above-mentioned steel truss girder assembling construction is spelled according to the order of main truss longeron, primary and secondary crossbeam, brace, top bracing, horizontal-associate
Dress.
The basic technology of above-mentioned steel truss girder assembling construction is hung including bundle, device to hole, drift bolt bolt and tight bolt.
Above-mentioned temporary rest pier construction is using overall buttress basic engineering.
Above-mentioned steel truss girder hauling construction uses dilatory without nose girder, and the dilatory mode of traction is dilatory to promote, that is, will slide
Car group is placed on girder steel rear end, and fixed pulley group is placed under the appropriate place in front, volume field machine travel, and girder steel will be pushed advance, we
Formula does not set the instruments such as coaster, volume field machine in girder steel front end, to reduce amount of deflection under front end, it is ensured that pier on smoothly.
Above-mentioned steel truss girder hauling construction uses double end extension pulley group, coordinates volume field machine to start simultaneously, tackle pulley is used
Roller bearing slideway system, intermittently-arranged each in steel truss girder of sliding way shows contact up and down, and glide path is on buttress and part roadbed
Elongated arrangement.
Above-mentioned steel truss beam support installation kit includes hold-down support and installed and movable bearing support installation.
Above-mentioned bridge deck concrete construction includes concrete and matches, stirs, transports and pour, the side being molded using a placing
Method is poured.
Above-mentioned building site application is mainly repairing and the full-bridge of breakage in the painting benefit of each intersegmental attachment weld, construction
Last one of finish paint spraying.
The present invention compared with prior art, with advantages below and beneficial effect：
（1）The present invention is only highly 2.212m using bridge floor steel truss girder rail top to beam bottom is combined, and efficiently solves bridge down train net
Sky is required, without raising of track absolute altitude, reduces whole Cost of Bridge；
（2）Concrete slab of the present invention and the common stress of steel truss girder, not only with beam in length and breadth, and are combined with lower boom, in state
It is interior it is fewer see, increase structure integral rigidity, reduce noise；
（3）Concrete slab of the present invention is combined entirely with beam in length and breadth and lower boom, is eliminated lower flat vertical connection, braking connection, is saved steel,
This bridge steel are about 12.5t/m.
Brief description of the drawings
Fig. 1 is construction technology process block diagram of the invention.
Fig. 2 is steel truss girder hauling construction technological process.
Embodiment
A kind of technological process railway Through Steel concrete combination bridge floor steel truss girder construction method as shown in Figure 1, is used
Launching method organizing construction, i.e., be that temporary rest pier carries out girder steel consolidation service using roadbed after abutment platform and abutment, manually match somebody with somebody
Close the assembled girder steel of loop wheel machine；Vertex top girder steel is played by particular design after the completion of assembly, up and down slideway facility is installed, two are utilized
Platform 10t hoist engine by two three walk five assembly pulley, in the way of flat slope is dilatory, longitudinal pull girder steel vertical shift passes through
To girder steel design attitude, using the adjustment facility of pier top, adjustment girder steel to design attitude falls beam facility temporarily using pier top,
Top lifting girder steel, removes up and down slideway, falls beam in place, then construction bridge deck and road are arranged in each lower-chord panel point of steel truss girder,
Glide path elongated arrangement on buttress and related roadbed removes temporary rest pier.
Wherein, steel truss girder assembling construction according to from bottom to up, after first lower plane the inside installation principle, form triangle as early as possible
Shape rock-steady structure, then installs plane, and the beam in length and breadth for often installing two sections is the brace for installing a section, often installs two sections
Brace is to install one to save top bracing, the like assembled complete.Steel truss girder assembling construction according to main truss longeron, primary and secondary crossbeam, tiltedly
Bar, top bracing, the order of horizontal-associate carry out assembly, with 50t automobiles loop wheel machine that rod member is assembled one by one, first by node metal plate, spelling before assembly
Dress metal plate, fill out metal plate, high-strength bolt and be fitted on each near nodal.
Wherein, temporary rest pier construction is using overall buttress basic engineering, and Temporary Piers squeeze into steel-pipe pile progress using Φ's 630
Set up, stake is long to be more than two rows of 20.1m steel-pipe piles longitudinal direction, and horizontal spacing 2.3m, longitudinal pitch 2.2m set distribute in length and breadth thereon
Beam, the longeron of distribution beam uses 2I40 I-steel, and crossbeam uses 3I55 I-steel, and glide path beam is formed using the weldering of steel box-girder group,
So basis of temporary rest pier and support is all the steel-pipe piles of identical Φ 630, forms overall buttress, increases the steady of temporary rest pier
It is qualitative.
Wherein, the technological process of steel truss girder hauling construction is as shown in Fig. 2 using dilatory without nose girder, draw dilatory mode to push away
Enter dilatory, that is, slide trucks group is placed on girder steel rear end, fixed pulley group is placed under the appropriate place in front, volume field machine travel, steel
Beam will be pushed advance, and the manner does not set the instruments such as coaster, volume field machine in girder steel front end, to reduce amount of deflection under front end, it is ensured that suitable
Pier in profit；Using double end extension pulley group, coordinate volume field machine to start simultaneously, the speed for carrying out adjustable pulley group can also be opened
Degree, levelling traction deviation, hauling speed is controlled in 60~80m/h；Tackle pulley uses roller bearing slideway system, and sliding way is intermittently-arranged
Each in steel truss girder shows contact, glide path elongated arrangement, the Controlling principle of overall stability on buttress and part roadbed up and down
For maximum hanging no more than 3 panel lengths of steel truss girder, i.e. 30m.
Anti-skidding emergent precautionary measures arrange that platform on roadbed platform, borrows fairlead, using 2 using anti-slippery hoist engine
Times steel wire rope is fixed on after steel truss girder on end floor beam, and holding steel truss girder prevents slippery, and anti-skidding steel wire rope is guarded in tensing all the time
State, shoe is moved forward in time according to pull-offs direction.
The each ultimate range of slide trucks displacement is 45cm, after in-position, and running block caudad displacement continues to drag
Draw, when being displaced to most back rest tail；Because hoist engine position and fixed block group position are spacing, it is impossible to when reaching final position, or
Person is dilatory, and skew is larger, it is impossible to pull-offs direction will be aligned when aligning, using dilatory method, hoist engine is fixed on into pier scaffold
Front, movable pulley, which is fixed on steel truss girder, to carry out being dragged to position.
Steel truss girder falls beam and positioned to carry out moving beam and Luo Liang, each pier top placement 2 using jack, sliding beam, rolling bar etc.
Platform 500t jack, jack is operated under unified command, and jack must be made synchronous, first together push up beam with bearing
Rise, sliding beam is laid under bearing, rolling bar is then placed between sliding beam and bearing again, is vertically and horizontally moved with jack and reversible chain block
Beam, must accomplish when moving beam at the uniform velocity, it is synchronous, go slowly, operated in strict accordance with jack operational procedure.
Wherein, steel truss beam support material and the accuracy of manufacture should meet design requirement, the finished product quality certification that should have manufactory, and
It is required that casting detection record and rewelding record with supply unit's management visa, while visual examination should be made and to assembling
Overall size afterwards is checked.One layer of thin fine sand should be spread before the formal bearing installation of steel truss girder in the range of base-plate floating,
Make uniform force, bearing crab-bolt must carefully be verified by crab-bolt installation diagram when installing, must not hunted leak.It is put into lower bolt
Afterwards, should be stifled tight by anchor hole foam or cotton yarn, prevent foreign matter from falling into anchor hole, influence last bearing formally in place.
Wherein, bridge deck concrete construction includes concrete and matches, stirs, transports and pour, using placing shaping
Method is poured；Concrete will disperse slowly to drop, and prevent a large amount of concrete from concentrating impact steel bar reinforced and WELDING STUDS, make coagulation firm by ramming
Vibrating head is avoided to be contacted with WELDING STUDS when native, concrete enters to be noted protecting WELDING STUDS in mold process, prevents WELDING STUDS collision change
Shape；After the completion of concrete placing, surface will carry out secondary receive and starch, and then be covered with geotextiles, and maintenance of sprinkling water, and treat real curing
When its compression strength of the concrete sample of shield reaches the 90% of canal portion concrete design strength, geotextiles are opened, watering continues to support
Shield, remains that concrete surface is moist, and maintenance number of days is no less than 7 days, while carrying out the health of bottom surface and side.
Wherein, building site application be mainly each intersegmental attachment weld painting mend, the repairing of breakage and complete in construction
The spraying of last one of finish paint of bridge.
It is described above, be only presently preferred embodiments of the present invention, any formal limitation not done to the present invention, it is every according to
According to the present invention technical spirit above example is made any simple modification, equivalent variations, each fall within the present invention protection
Within the scope of.
Claims (10)
1. railway Through Steel concrete combination bridge floor steel truss girder construction method, construction technology process be steel truss girder assembling construction,
Temporary rest pier construction, steel truss girder hauling construction, steel truss beam support are installed, bridge deck concrete is constructed, building site application, and its feature exists
In：Using launching method organizing construction, i.e., it is that temporary rest pier carries out girder steel consolidation service using roadbed after abutment platform and abutment,
Hand fit's loop wheel machine assembly girder steel；Vertex top girder steel is played by particular design after the completion of assembly, up and down slideway facility is installed,
Using two 10t volume field machine by two three walk five assembly pulley, in the way of flat slope is dilatory, longitudinal pull girder steel is indulged
Mobile Communication is crossed to girder steel design attitude, and using the adjustment facility of pier top, adjustment girder steel to design attitude falls beam temporarily using pier top
Facility, top lifting girder steel removes up and down slideway, falls beam in place, then construction bridge deck and road are arranged in each lower edge of steel truss girder
Node, glide path elongated arrangement on buttress and related roadbed removes temporary rest pier.
2. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, it is characterised in that：
The step steel truss girder assembling construction according to from bottom to up, after first lower plane the inside installation principle, form triangle as early as possible stable
Structure, then installs plane, and the beam in length and breadth for often installing two sections is the brace for installing a section, and the brace for often installing two sections is
Install one and save top bracing, the like assembled complete.
3. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, it is characterised in that：
The steel truss girder assembling construction carries out assembled according to the order of main truss longeron, primary and secondary crossbeam, brace, top bracing, horizontal-associate.
4. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, it is characterised in that：
The basic technology of the steel truss girder assembling construction is hung including bundle, device to hole, drift bolt bolt and tight bolt.
5. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, it is characterised in that：
The temporary rest pier construction is using overall buttress basic engineering.
6. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, it is characterised in that：
The steel truss girder hauling construction uses dilatory without nose girder, and the dilatory mode of traction is dilatory to promote.
7. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, it is characterised in that：
The steel truss girder hauling construction uses double end extension pulley group, coordinates volume field machine to start simultaneously, tackle pulley uses roller bearing slideway
System, intermittently-arranged each in steel truss girder of sliding way shows contact, glide path elongated arrangement on buttress and part roadbed up and down.
8. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, it is characterised in that：
The steel truss beam support installation kit includes hold-down support and installed and movable bearing support installation.
9. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, it is characterised in that：
The bridge deck concrete construction includes concrete and matches, stirs, transports and pour, and the method being molded using a placing is poured
Build.
10. railway Through Steel concrete combination bridge floor steel truss girder construction method according to claim 1, its feature exists
In：The building site application be mainly each intersegmental attachment weld painting mend, construction in breakage repairing and full-bridge most
The spraying of one of finish paint afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433966.8A CN107288039A (en) | 2017-06-09 | 2017-06-09 | Railway Through Steel concrete combination bridge floor steel truss girder construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710433966.8A CN107288039A (en) | 2017-06-09 | 2017-06-09 | Railway Through Steel concrete combination bridge floor steel truss girder construction method |
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| CN107288039A true CN107288039A (en) | 2017-10-24 |
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| CN201710433966.8A Pending CN107288039A (en) | 2017-06-09 | 2017-06-09 | Railway Through Steel concrete combination bridge floor steel truss girder construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176867A (en) * | 2020-08-28 | 2021-01-05 | 中铁九局集团第七工程有限公司 | Single-track single-span railway steel truss girder dragging, installing and constructing method and single-track single-span railway |
| CN114134811A (en) * | 2021-10-19 | 2022-03-04 | 中铁二十五局集团第二工程有限公司 | Steel truss girder dragging frame and bridge steel truss girder erecting method |
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| CN202064293U (en) * | 2011-05-12 | 2011-12-07 | 中铁二十局集团第一工程有限公司 | Traction system used for steel trussed beam cantilever hauling construction |
| CN202809492U (en) * | 2012-09-05 | 2013-03-20 | 中铁十六局集团第五工程有限公司 | Dragging system of steel truss girder obliquely crossing existing line through continuous jack in guide rail-free way |
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| CN101220580A (en) * | 2007-12-04 | 2008-07-16 | 中铁大桥局股份有限公司 | Portrait multi-point continuously dragging construction method for trussed steel beam |
| CN202064293U (en) * | 2011-05-12 | 2011-12-07 | 中铁二十局集团第一工程有限公司 | Traction system used for steel trussed beam cantilever hauling construction |
| CN202809492U (en) * | 2012-09-05 | 2013-03-20 | 中铁十六局集团第五工程有限公司 | Dragging system of steel truss girder obliquely crossing existing line through continuous jack in guide rail-free way |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176867A (en) * | 2020-08-28 | 2021-01-05 | 中铁九局集团第七工程有限公司 | Single-track single-span railway steel truss girder dragging, installing and constructing method and single-track single-span railway |
| CN114134811A (en) * | 2021-10-19 | 2022-03-04 | 中铁二十五局集团第二工程有限公司 | Steel truss girder dragging frame and bridge steel truss girder erecting method |
| CN114134811B (en) * | 2021-10-19 | 2024-03-08 | 中铁二十五局集团第二工程有限公司 | Steel truss girder traction frame and erection method of steel truss girder for bridge |
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Application publication date: 20171024 |
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