CN105586834B - A kind of bridge arch rib section manufacture craft - Google Patents
A kind of bridge arch rib section manufacture craft Download PDFInfo
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- CN105586834B CN105586834B CN201610106417.5A CN201610106417A CN105586834B CN 105586834 B CN105586834 B CN 105586834B CN 201610106417 A CN201610106417 A CN 201610106417A CN 105586834 B CN105586834 B CN 105586834B
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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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- 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
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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
- E01D6/00—Truss-type bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to a kind of bridge arch rib section manufacture craft, the manufacture craft includes assembled purlin piece, the assembly of wind brace horizontal-associate and entirety three steps of section assembling.The advantage of the invention is that：Bridge arch rib section manufacture craft of the present invention matches assembly using multi-segmental, and each section can realize that the matching between associated component is assembled by specific moulding bed, so as to ensure that the line style precision of arch rib section；The amount of labour of the overall preassembling of bridge arch rib section is reduced, and shortens the assembled cycle, operating efficiency is improved.
Description
Technical field
The invention belongs to bridge manufacturing technology field, more particularly to a kind of bridge arch rib section manufacture craft.
Background technology
With China railways, expressway construction project it is increasing, built in the poor deep mountain valleys of natural conditions
The engineering of bridge is more and more, especially long-span steel arch bridge, because the structure is particularly suitable for paddy and flows anxious, construction environment deeply
Severe plateau narrow valley region.Therefore for the preparation method of bridge arch rib, also it is taken seriously more and more, especially for
Execution conditions adverse conditions, then its preparation method be just particularly important.
In the bridge that the present invention is studied, main bridge is using the double-deck trussed bridge of half-through, and span setting is 496m, bridge main line
It is divided into upper and lower two layers by function, upper deck of bridge service motor vehicle, beam overall 33m；Lower floor's bridge service slow-vehicle system, width 12m is main
108m lower floors bridge floor can be removed by being suspended on the vertical shift track at upper deck of bridge beam bottom to both sides in spanning, to meet 500t grades
Ship navigation requirement；In usually lower floor's bridge floor closure state, beam bottom about 300m scopes meet yacht navigational clearance height；And
Arch rib therein section is also indispensable structure composition in bridge.Found through retrieval, China Patent No. is
201310367055.1 proposing a kind of bridge arch rib preparation method, comprise the following steps：1）Blanking typesetting；2）Blanking；3）Volume
Pipe；4）Group weldering internal stiffeners；5）Put ground sample, assembling steel pipe；6）Boom location is determined, using dotting punch as mark；7）Boom location
Erection support is simultaneously welded；8）Welded pipe and pipe butt weld；9）Group weldering arch rib；10）Horizontal, bearing diagonal makes；11）Sectional making is simultaneously
Carry out preassembling；12）Mark is carried out at arch rib segmentation position, it is same to connect first code；13）Paint；Using the invention
Method, in carrying out the making of bridge arch rib and be assembled, simplifies flow, while assembled and welding quality is also significantly increased,
The construction quality of bridge arch rib is greatly ensured；But the preparation method has the following disadvantages：1. the bridge arch rib preparation method,
Steel pipe is used, but steel tube section is more using steel, and manufacture relative complex, connection is inconvenient；2. the preparation method, no
It can meet to the assembled requirement made of arch rib section multi-segmental matching, while in arch rib section manufacturing process, line style camber requires high,
But the preparation method is difficult to control line style camber.
Therefore, developing the bridge arch rib section manufacture craft that a kind of preparation method is simple and convenient to operate and line style precision is high is
It is highly desirable to.
The content of the invention
It is simple and convenient to operate the technical problem to be solved in the present invention is to provide a kind of preparation method and the high bridge of line style precision
Camber rib section manufacture craft.
In order to solve the above technical problems, the technical scheme is that：A kind of bridge arch rib section manufacture craft, its innovative point
It is：The manufacture craft is specific as follows：
（1）Purlin piece is assembled：Arch rib main truss entirety purlin piece is made up of upper and lower chord member and vertical web rod, diagonal web member, single internode
For a purlin piece；Overall purlin piece assembly is using the assembly of multi-segmental continuous coupling, i.e., often wheel carries out assembled, assembly not less than 5 sections
When, first by top boom and lower boom positioned parallel on moulding bed A, being adjusted makes to reserve 3mm welding contractions between upper and lower chord member
Amount, and by method of the theodolite using rotary angle of 90 DEG, wind up bar node and lower edge bar node relative position relation are controlled, then
Detected, after detection is qualified, chord member is fixed temporarily；Vertical web rod and diagonal web member are then installed successively, pushed up when diagonal web member is in place
Pick coordinates；Then weld seam between straight, diagonal web member and lower-chord panel point is welded, treats again to determine after the completion of straight, diagonal web member and lower boom weld seam
Position is welded in straight, diagonal web member and top boom, and welding process, and purlin plate plane degree is controlled using spirit level；After welding terminates, to each
Azimuth dimension is detected, is disintegrated after detection is qualified, is left one section of parent segment as next round and is participated in assembled, disintegrates as list
Segment unit body simultaneously installs temporary support；
（2）Wind brace horizontal-associate is assembled：Wind brace horizontal-associate is used to connect both sides main truss, is made up of wind brace node and wind brace rod member；Wind
When supportting horizontal-associate assembly, wind brace node is placed on moulding bed B first, being adjusted makes each azimuth dimension meet code requirement；Inspection
After survey is qualified, wind brace node is fixed temporarily；Then, wind brace rod member and wind brace node spelling, it is assorted with chord member node simulation tire；Treat
After each orientation size adjusting is qualified, fixed temporarily with simulation tire, then complete to weld with the penetration of wind brace node；
（3）Overall section assembling：After the completion of arch rib main truss purlin piece, wind brace horizontal-associate difference are assembled, on section assembling moulding bed
Carry out segment matches assembled with welding；First, the both sides purlin piece of first section is positioned, wind cable and support frame are set, enter sector-style
Support horizontal-associate matching assembled, and it is interim fixed；Then, assembled lower floor's Longitudinal Wind strut member, after each orientation dimensional gaughing is qualified, peace
Fill temporary support；Then, assembled upper strata Longitudinal Wind strut member, after each orientation dimensional gaughing is qualified, installs temporary support；First
After section assembling terminates, the both sides purlin piece of second section is repositioned, as first segment assembling method, then assembly second
Individual section levels Longitudinal Wind strut member；Assembled follow-up section, after welding completion is qualified, leaves one section as next round successively
Parent segment participates in assembled, and disintegrate lower tire.
Further, the step（1）Middle moulding bed A should be provided with according to the linear setting of bridge arch rib on the moulding bed A
Chord member positions pier and brace positioning pier, and adds temporary rest pier and spacing shelves angle.
Further, the step（1）In the assembled open work of purlin piece when should be carried out under conditions of without sunshine, and weld
Stitch as one-level melt-through weld.
Further, the step（3）In section assembling moulding bed according to arch rib line style set, the moulding bed typically press five
Segment length is set, but the larger moulding bed length of rise difference is according to 4~5 sections of arrangements.
The advantage of the invention is that：
（1）Bridge arch rib section manufacture craft of the present invention uses pin-connected panel, with can scale it is prefabricated, transport and installation side
Just, the construction period is short, and average labor power consumption is few, and construction quality is easy to ensure；
（2）Bridge arch rib section manufacture craft of the present invention matches assembly using multi-segmental, and each section passes through specific moulding bed
It can realize that the matching between associated component is assembled, and moulding bed is all set according to arch rib line style, so as to ensure that the line style of arch rib section
Precision；The amount of labour of the overall preassembling of bridge arch rib section is reduced, and shortens the assembled cycle, operating efficiency is improved；
（3）Bridge arch rib section manufacture craft of the present invention, wherein, piece assembly open work in purlin should enter under conditions of without sunshine
OK, and then avoid considering fetalism and purlin piece linear expansion coefficient, deformed to prevent fetalism, so as to ensure that dimensional accuracy.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1~Fig. 2 is the process schematic of purlin piece assembly in bridge arch rib section manufacture craft of the present invention.
Fig. 3 is the schematic diagram of wind brace horizontal-associate assembly in bridge arch rib section manufacture craft of the present invention.
Fig. 4~Fig. 6 is the process schematic of overall section assembling in bridge arch rib section manufacture craft of the present invention.
Embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
Embodiment
The present embodiment bridge arch rib section manufacture craft, the manufacture craft is specific as follows：
（1）Purlin piece is assembled：Arch rib main truss entirety purlin piece is made up of top boom 1, lower boom 2 and vertical web rod 3, diagonal web member 4,
Single internode is a purlin piece；
Overall purlin piece assembly uses the assembly of multi-segmental continuous coupling, i.e., often wheel carries out assembly, and outdoor spelling not less than 5 sections
Carried out during dress under conditions of without sunshine；When assembled, as shown in figure 1, first by top boom 1 and the positioned parallel of lower boom 2 in tire
On frame A, moulding bed A is additionally provided with chord member positioning pier and brace positioning pier, and add according to the linear setting of bridge arch rib on moulding bed A
If temporary rest pier and spacing shelves angle；Make to reserve 3mm welding contracted quantities between top boom 1, lower boom 2 by adjustment, and pass through longitude and latitude
The method that instrument uses rotary angle of 90 DEG, the control node of top boom 1 and the node relative position relation of lower boom 2, are then detected, are examined
After survey is qualified, chord member is fixed temporarily；
As shown in Fig. 2 then installing vertical web rod 3 and diagonal web member 4 successively, coordinated when diagonal web member 4 is in place with top pick；Then weld
Weld seam between straight, diagonal web member and lower-chord panel point is connect, straight, the oblique abdomen of repositioning welding after the completion of straight, diagonal web member and the weld seam of lower boom 2 is treated
Bar and top boom 1, and in welding process, purlin plate plane degree is controlled using spirit level；
After welding terminates, each azimuth dimension is detected, is disintegrated after detection is qualified, leaves one section as next round
Parent segment participate in assembled, disintegrate as single hop cell cube and temporary support be installed；
（2）Wind brace horizontal-associate is assembled：Wind brace horizontal-associate is used to connect both sides main truss, is made up of wind brace node and wind brace rod member；
When wind brace horizontal-associate is assembled, as shown in figure 3, wind brace node 5 is placed on moulding bed B first, being adjusted makes each side
Position size meets code requirement；After detection is qualified, wind brace node 5 is temporarily fixed；Then, 5 groups of wind brace rod member 6 and wind brace node
Spell, it is assorted with chord member node simulation tire；After each orientation size adjusting is qualified, fix, then complete and wind temporarily with simulation tire
Support the penetration welding of node 5；
（3）Overall section assembling：After the completion of arch rib main truss purlin piece, wind brace horizontal-associate difference are assembled, on section assembling moulding bed
Carry out segment matches assembled with welding, section assembling moulding bed is set according to arch rib line style, and the moulding bed is typically set by five segment length
Put, but the larger moulding bed length of rise difference is according to 4~5 sections of arrangements；
As shown in figure 4, first, positioning the both sides purlin piece 7 of first section, wind cable and support frame are set, wind brace is carried out horizontal
The matching of connection 8 is assembled, and interim fixed；
As shown in figure 5, then, assembled lower floor's Longitudinal Wind strut member 9 after each orientation dimensional gaughing is qualified, installs interim
Support；
As shown in fig. 6, then, assembled upper strata Longitudinal Wind strut member 10 after each orientation dimensional gaughing is qualified, installs interim
Support；
After first segment assembly terminates, the both sides purlin piece of second section is repositioned, as first segment assembling method,
Then assembled second section levels Longitudinal Wind strut member；Assembled follow-up section, after welding completion is qualified, leaves one section successively
Participate in assembled as the parent segment of next round, disintegrate lower tire.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The skill of the industry
Art personnel are it should be appreciated that the present invention is not limited to the above embodiments, and described in above-described embodiment and specification is explanation
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (4)
1. a kind of bridge arch rib section manufacture craft, it is characterised in that：The manufacture craft is specific as follows：
（1）Purlin piece is assembled：Arch rib main truss entirety purlin piece is made up of upper and lower chord member and vertical web rod, diagonal web member, and single internode is one
Individual purlin piece；Overall purlin piece assembly uses multi-segmental continuous coupling assembled, i.e., often wheel carries out assembly not less than 5 sections, when assembled, first
First by top boom and lower boom positioned parallel on moulding bed A, being adjusted makes to reserve 3mm welding contracted quantities between upper and lower chord member, and
The method that rotary angle of 90 DEG is used by theodolite, controls wind up bar node and lower edge bar node relative position relation, then carries out
Detection, after detection is qualified, chord member is fixed temporarily；Vertical web rod and diagonal web member are then installed successively, matched somebody with somebody when diagonal web member is in place with top pick
Close；Then weld seam between straight, diagonal web member and lower edge bar node is welded, treats to reposition after the completion of straight, diagonal web member and lower boom weld seam
Weld in straight, diagonal web member and top boom, and welding process, purlin plate plane degree is controlled using spirit level；After welding terminates, to each side
Position size is detected, is disintegrated after detection is qualified, is left one section of parent segment as next round and is participated in assembled, disintegrates as single hop
Cell cube simultaneously installs temporary support；
（2）Wind brace horizontal-associate is assembled：Wind brace horizontal-associate is used to connect both sides main truss, is made up of wind brace node and wind brace rod member；Wind brace is horizontal
When connection is assembled, wind brace node is placed on moulding bed B first, being adjusted makes each azimuth dimension meet code requirement；Detection is closed
After lattice, wind brace node is fixed temporarily；Then, wind brace rod member and wind brace node spelling, it is assorted with chord member node simulation tire；Treat each side
After position size adjusting is qualified, fixed temporarily with simulation tire, then complete to weld with the penetration of wind brace node；
（3）Overall section assembling：Arch rib main truss purlin piece, wind brace horizontal-associate after the completion of assembly, are carried out on section assembling moulding bed respectively
Segment matches are assembled with welding；First, the both sides purlin piece of first section is positioned, wind cable and support frame are set, wind brace is carried out horizontal
Lump is fixed with assembly, and temporarily；Then, assembled lower floor's Longitudinal Wind strut member, after each orientation dimensional gaughing is qualified, installation is faced
When support；Then, assembled upper strata Longitudinal Wind strut member, after each orientation dimensional gaughing is qualified, installs temporary support；First segment
After assembly terminates, the both sides purlin piece of second section is repositioned, as first segment assembling method, then assembled second is saved
Section levels Longitudinal Wind strut member；Assembled follow-up section, after welding completion is qualified, leaves one section of parent segment as next round successively
Participate in assembled, disintegrate lower tire.
2. bridge arch rib section manufacture craft according to claim 1, it is characterised in that：The step（1）Middle moulding bed A answers root
According to the linear setting of bridge arch rib, be provided with the moulding bed A chord member positioning pier and brace positioning pier, and add temporary rest pier and
Spacing shelves angle.
3. bridge arch rib section manufacture craft according to claim 1, it is characterised in that：The step（1）In purlin piece spell
It should be carried out during dress open work under conditions of without sunshine, and weld seam is one-level melt-through weld.
4. bridge arch rib section manufacture craft according to claim 1, it is characterised in that：The step（3）In section spell
Fill moulding bed to be set according to arch rib line style, the section assembling moulding bed is set by five segment length.
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| CN201610106417.5A CN105586834B (en) | 2016-02-26 | 2016-02-26 | A kind of bridge arch rib section manufacture craft |
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| CN105586834B true CN105586834B (en) | 2017-07-28 |
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| CN106368126B (en) * | 2016-08-30 | 2018-07-03 | 中铁第四勘察设计院集团有限公司 | The construction method of cluster type assembly arch rib |
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| CN117569185B (en) * | 2024-01-16 | 2024-03-22 | 贵州省公路工程集团有限公司 | Steel truss web member-concrete combined arch bridge main arch ring segment steel structure stamping connecting plate |
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