CN106758740A - A kind of double case steel main beam structures of railroad bridge separate type with independent tuyere - Google Patents
A kind of double case steel main beam structures of railroad bridge separate type with independent tuyere Download PDFInfo
- Publication number
- CN106758740A CN106758740A CN201611116550.5A CN201611116550A CN106758740A CN 106758740 A CN106758740 A CN 106758740A CN 201611116550 A CN201611116550 A CN 201611116550A CN 106758740 A CN106758740 A CN 106758740A
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- Prior art keywords
- separate type
- bridge
- box beam
- tuyere
- plate
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention discloses a kind of double case steel main beam structures of railroad bridge separate type with independent tuyere, including bridge deck, and the both sides of the bridge deck direction across bridge are equipped with separate type side box beam；The separate type side box beam side is welded to connect independent tuyere with the bridge deck bolt-weld joint, opposite side；The separate type side box beam include multistage along bridge to the separate type side box beam section of arrangement, spliced by bolt to adjacent separate type side box beam section along bridge.Clearly, local stability sex chromosome mosaicism is less for the main beam structure stress of present invention design；Compared to overall steel box beam, physical dimension has reduced, can be prefabricated in factory, it is to avoid field welding, it is ensured that construction precision and construction quality；Relative to steel truss girder, cumbersome splicing operation between node is reduced, and reduce steel using amount, and outer surface of the present invention is succinct, and maintenance amount is few；The present invention is greatly improved compared to overall steel box beam and steel truss girder in wind resistance.
Description
Technical field
The invention belongs to railroad bridge technical field, and in particular to one kind is applied to Railway Cable-stayed Bridge, railway suspension bridge etc.
Loads of Long-span Bridges field, is equally applicable for the main beam structure of middle span railroad bridge.
Background technology
Existing Railway Cable-stayed Bridge main beam structure form uses steel truss girder or overall steel box beam, although steel truss girder and overall steel
Box beam technology is more ripe, but still suffers from following imperfection part：
(1) for steel truss girder, girder section is higher, it is difficult to use concrete girder structure, therefore general full-bridge uses steel
Structure girder, steel using amount is very big, less economical；Secondly as joint structure, splice plate are more and bolt hole weakening rod member is long
Carefully than the factor such as larger, steel truss girder stock utilization is not high；Again, steel truss girder global sections height is big, and rod member is more, air resistance coefficient
Greatly, and bluff body section wind resistance is poor, in coastal typhoon prone areas, the driving wind speed threshold values of train seems relatively low；Finally, steel
Trusses rod member is various, although transporting and hoisting is convenient, but whole sections concatenation construction difficulty is big, and single rod member concatenation construction progress compared with
And construction precision requirement is high slowly,.
(2) for overall steel box beam, it constructively needs to set the crowds such as base plate, the web of top board and bridge floor equal in width
Many plates, are mostly that plate is minimum thickness (local stability) control design case, additionally need to set more stiffener to ensure plate
The local stability of part, the space for having further lifting in stock utilization.Additionally, whole section of steel box girder size is larger,
Inconvenience transport, general prefabricated in factory using Slab element, the construction method that total welding connects in building site causes Site Welding amount
Greatly, there is certain difficulty in quality control on construction.Meanwhile, train traffic safety and comfortableness requirement railroad bridge must local one
Fixed lateral stiffness, and Long-Span Railway Cable-Stayed Bridge then needs to widen in section according to integral steel box beam section, causes material
Utilization rate is not high, less economical.
The content of the invention
For a series of problems that the steel truss girder described in background technology and overall steel box beam exist in railroad bridge application,
Meet intensity, rigidity, stability requirement it is an object of the invention to provide one kind, preferable wind resistance can be reached again, and can carry
The double case steel main beam structures of railroad bridge separate type of the independent tuyere of band of stock utilization reduction construction costs high.
In order to achieve the above object, the double case steel girder knots of the railroad bridge separate type of the independent tuyere of band of present invention design
Structure, it is characterised in that：Separate type side box beam is equipped with including bridge deck, in the both sides of bridge deck direction across bridge；The separate type side
Box beam side is welded to connect independent tuyere with the bridge deck bolt-weld joint, opposite side；The separate type side box beam includes multistage
Along bridge to the separate type side box beam section of arrangement, spliced by bolt to adjacent separate type side box beam section along bridge.
Preferably, separate type side box beam section includes that end is welded successively and surrounds the top board of rectangle, base plate, interior
Web and outer web；Be interval with multiple diaphragm plates along separate type side box beam length direction, the side of the diaphragm plate four respectively with top
Plate, base plate, endosternum, outer web inwall are welded to connect；The side box beam section is additionally provided with inhaul cable anchorage structure.
Preferably, multiple spaced ribs are equipped with the top board, base plate, endosternum and outer web inwall.
It is further preferred that the diaphragm plate is provided with the caulking groove of the accommodating ribs, the ribs insertion is described
It is welded to connect with the diaphragm plate in caulking groove.
Preferably, the adjacent top board, base plate, endosternum, outer web and ribs end are logical using box beam splice plate
Cross bolt splicing.
Preferably, diaphragm plate middle part is provided with waist-shaped hole, and the waist-shaped hole is along being provided with the protrusion tabula plate surface week
Diaphragm plate ribs.
Used as another preferred scheme, the bridge deck includes direction across bridge arrangement and the bolted horizontal stroke of separate type side box beam
Beam, be carried on the crossbeam multiple along bridge to set floorings ribbed stiffener, be laid on the floorings ribbed stiffener
Floorings.
Preferably, the crossbeam includes crossbeam base plate and the cantilever diaphragm being welded in the middle part of crossbeam base plate；The crossbeam bottom
Multiple cantilever diaphragm ribbed stiffeners are provided between plate and cantilever diaphragm.
It is further preferred that side box beam side wall is provided with cantilever diaphragm connecting plate and crossbeam base plate connecting plate；The horizontal stroke
Web is connected crab bolt with cantilever diaphragm and splices by cantilever diaphragm splice plate, and the crossbeam base plate is spliced by crossbeam base plate
Plate is connected crab bolt splicing with crossbeam base plate.
Preferably, the floorings ribbed stiffener includes two pieces of floors, and two pieces of described floor one end are welded to connect, and two pieces of institutes
State and arranged in α angles between floor, wherein 20 °≤α≤100 °.
It is further preferred that splice crab bolt by floor between adjacent floorings ribbed stiffener splicing.
Preferably, the independent tuyere includes that the tuyere top board and tuyere base plate of V-shaped arrangement, tuyere are welded in one end end
Between top board and tuyere base plate along along bridge to being interval with multiple tuyere diaphragm plates；The tuyere diaphragm plate and the separate type side
Box beam sidepiece is welded.
The beneficial effects of the invention are as follows：The main beam structure of present invention design had both combined traditional steel truss girder and traditional steel case
The advantage of beam, while the shortcoming of both is turn avoid, with short construction period, economy protrusion, reliable construction quality, structure
The characteristics of applied widely, high speed train comfortableness is good, wind resistance is good.
The present invention is compared to steel truss girder：Firstth, the quantity of rod member is reduced, the construction period is accelerated；Second, the present invention is outer
Surface is succinct, and maintenance amount is few；3rd, the present invention can be using main span steel case, the end bay concrete of similar overall steel box beam
The hybrid beam structure type of box beam, so as to steel using amount about 60% can be saved, greatly improves the economy of bridge；
The present invention is compared to overall steel box beam：Firstth, the present invention is received scattered in conventional overall steel box beam whole cross section
Power has focused on two edge-beams, stress definitely, concentrate, so that thickness of slab is thicker, local stability sex chromosome mosaicism is less, without setting
Extra ribbed stiffener is put to ensure the local stability sex chromosome mosaicism that conventional overall steel box beam thin plate is present, the present invention can be by steel product stress
Improve without being limited by local stability, stock utilization is high, can reduce steel using amount about 10~20%；Secondth, the present invention by
Single FCL is changed into two small side case+bridge floor plate parts of separation, and scantling is greatly reduced, such that it is able to overall in work
Manufactured in factory, it is to avoid manufacture in conventional overall steel box beam only plate unit factory and at the scene total spelling welding forming the drawbacks of,
Excessive site welding is avoided, so as to rib construction precision and construction quality is effectively ensured, highway fortune is also beneficial in addition
It is defeated, it is particularly well-suited to the poor bridge place of traffic condition.3rd, two side casees of main beam structure of the present invention are distributed in section two
Side, so as to substantially increase the horizontal bending rigidity of beam body, is more beneficial for lateral stiffness demand when bullet train runs, it is ensured that
The security and comfortableness of road driving.
Finally, the tuyere that the present invention is separately provided, can flexibly be set according to the wind field condition at bridge location, resist with good
Wind performance, can meet the wind resistance needs of coastal typhoon region bridge, specifically be shown in Table 1 wind tunnel experimental results.
Whirlpool shakes result of the test when table 1 sets 2m tuyeres wide
Brief description of the drawings
Fig. 1 is structural representation of the invention
Fig. 2 is the exploded perspective structural representation of separate type side box beam section of the present invention
Fig. 3 is the exploded perspective structural representation of bridge deck of the present invention
Fig. 4 is the enlarged diagram at A in Fig. 3
Fig. 5 is the stereochemical structure exploded perspective view of the ribbed stiffener of bridge floor half of bridge deck of the present invention
Fig. 6 is the structural representation of independent tuyere of the invention
In figure：Top board 1, base plate 2, endosternum 3, outer web 4, diaphragm plate 5 (waist-shaped hole 5.1, diaphragm plate ribs 5.2),
Inhaul cable anchorage structure 6, ribs 7, crossbeam 8 (crossbeam base plate 8.1, cantilever diaphragm 8.2, cantilever diaphragm ribbed stiffener 8.3), floorings
Ribbed stiffener 9 (floor 9.1), floorings 10, cantilever diaphragm connecting plate 11, crossbeam base plate connecting plate 12, cantilever diaphragm splice plate 13,
Beam base plate splice plate 14, floor splice plate 15, end-blocking plate 16, tuyere top board 17, tuyere base plate 18, tuyere diaphragm plate 19, box beam
Splice plate 20.
Specific embodiment
Below by Fig. 1~Fig. 6 and the mode of some alternative embodiments of the invention is enumerated, to technical side of the invention
Case (including optimal technical scheme) is described in further detail, any technical characteristic and any technical side in the present embodiment
Case is not limited the scope of the invention.
As shown in Fig. 1~Fig. 6, the double case steel main beam structure bags of railroad bridge separate type of the independent tuyere of band of present invention design
Bridge deck is included, the both sides of the bridge deck direction across bridge are equipped with separate type side box beam；The separate type side box beam side with it is described
Bridge deck bolt connection, opposite side is welded to connect independent tuyere；The separate type side box beam includes multistage along bridge to dividing for arranging
From formula side box beam section, spliced by bolt to adjacent separate type side box beam section along bridge.
As depicted in figs. 1 and 2, the separate type side box beam section welds the top board 1, base plate for surrounding rectangle successively including end
2nd, endosternum 3 and outer web 4；Multiple diaphragm plates 5, the side of the diaphragm plate 5 four are interval with along separate type side box beam length direction
It is welded to connect with top board 1, base plate 2, endosternum 3, the inwall of outer web 4 respectively；The side box beam section is additionally provided with inhaul cable anchorage structure
6.Multiple spaced ribs 7 are equipped with the top board 1, base plate 2, endosternum 3 and the inwall of outer web 4；The horizontal stroke
Dividing plate 5 is provided with the caulking groove of the accommodating ribs 7, and the ribs 7 welds company in inserting the caulking groove with the diaphragm plate 5
Connect；The adjacent top board 1, base plate 2, endosternum 3, outer web 4 and the end of ribs 7 pass through bolt using box beam splice plate 20
Splicing.The beam body agent structure of separate type side box beam can so be formed.
It is as shown in Figure 2 again, it is preferred that the middle part of the diaphragm plate 5 is provided with waist-shaped hole 5.1, and the waist-shaped hole 5.1 sets along week
There is the diaphragm plate ribs 5.2 on the protrusion surface of diaphragm plate 5.
As shown in figure 3, the bridge deck include direction across bridge arrangement with the bolted crossbeam 8 of separate type side box beam, hold
The multiple on the crossbeam 8 is loaded in along bridge to the floorings ribbed stiffener 9 for setting, the bridge being laid on the floorings ribbed stiffener 9
Panel 10.The crossbeam 8 includes crossbeam base plate 8.1 and is welded on the cantilever diaphragm 8.2 at the middle part of crossbeam base plate 8.1；The crossbeam
Multiple cantilever diaphragm ribbed stiffeners 8.3, multiple edges of cantilever diaphragm ribbed stiffener 8.3 are provided between base plate 8.1 and cantilever diaphragm 8.2
Crossbeam length direction arranged for interval.
As shown in Figure 2 to 4, side box beam side wall is provided with cantilever diaphragm connecting plate 11 and crossbeam base plate connecting plate 12；
The cantilever diaphragm 8.2 is spliced by cantilever diaphragm splice plate 13 with the bolt of cantilever diaphragm connecting plate 11, the crossbeam base plate 8.1
Spliced by crossbeam base plate splice plate 14 and the bolt of crossbeam base plate connecting plate 12.
As shown in figure 5, the floorings ribbed stiffener 9 includes two pieces of floors 9.1, the two pieces of one end of the floor 9.1 welding connect
Connect, and arranged in α angles between two pieces of floors 9.1, wherein 20 °≤α≤100 °.Between adjacent floorings ribbed stiffener 9
Spliced by the bolt of floor splice plate 15.End-blocking plate 16 is additionally provided with the two ends of floorings ribbed stiffener 9.
As shown in fig. 6, independent tuyere includes the tuyere top board 17 and tuyere base plate 18 of V-shaped arrangement, the He of tuyere top board 17
Between tuyere base plate 18 along along bridge to being interval with multiple tuyere diaphragm plates 19.Tuyere diaphragm plate is welded to connect with outer web 4, wind
Mouth top board 17 is welded with the end of top board 1, and tuyere base plate 18 is welded with the end of base plate 2.
It should be readily apparent to one skilled in the art that these are only presently preferred embodiments of the present invention, not limiting this hair
Bright, all any modification, combination, replacement, improvement made under the spirit and principles in the present invention etc. are all contained in guarantor of the invention
Within the scope of shield.
Claims (10)
1. double case steel main beam structures of a kind of railroad bridge separate type with independent tuyere, it is characterised in that：It is described including bridge deck
The both sides of bridge deck direction across bridge are equipped with separate type side box beam；Welded with the bridge floor drift bolt and connected in the separate type side box beam side
Connect, opposite side is welded to connect independent tuyere；The separate type side box beam include multistage along bridge to arrangement separate type side box beam section,
Spliced by bolt to adjacent separate type side box beam section along bridge.
2. double case steel main beam structures of the railroad bridge separate type with independent tuyere according to claim 1, it is characterised in that：
The separate type side box beam section welds top board (1), base plate (2), endosternum (3) and the outer web for surrounding rectangle successively including end
(4)；Be interval with multiple diaphragm plates (5) along separate type side box beam length direction, the side of the diaphragm plate (5) four respectively with top board
(1), base plate (2), endosternum (3), outer web (4) inwall are welded to connect；The side box beam section is additionally provided with inhaul cable anchorage structure
(6)。
3. double case steel main beam structures of the railroad bridge separate type with independent tuyere according to claim 2, it is characterised in that：
Multiple spaced ribs (7) are equipped with the top board (1), base plate (2), endosternum (3) and outer web (4) inwall；
The diaphragm plate (5) is provided with the caulking groove of the accommodating ribs (7), the ribs (7) insert in the caulking groove with it is described
Diaphragm plate (5) is welded to connect.
4. double case steel main beam structures of the railroad bridge separate type with independent tuyere according to claim 2, it is characterised in that：
The adjacent top board (1), base plate (2), endosternum (3), outer web (4) and ribs (7) end utilize box beam splice plate
(20) spliced by bolt.
5. the double case steel main beam structures of the railroad bridge separate type of the independent tuyere of band according to Claims 2 or 3, its feature exists
In：The diaphragm plate (5) middle part is provided with waist-shaped hole (5.1), and the waist-shaped hole (5.1) is along being provided with the protrusion diaphragm plate (5) week
The diaphragm plate ribs (5.2) on surface.
6. double case steel main beam structures of the railroad bridge separate type with independent tuyere according to claim 1, it is characterised in that：
The bridge deck include direction across bridge arrangement with the bolted crossbeam of separate type side box beam (8), be carried on the crossbeam (8)
Multiple along bridge to the floorings ribbed stiffener (9), the floorings (10) that are laid on the floorings ribbed stiffener (9) for setting.
7. double case steel main beam structures of the railroad bridge separate type with independent tuyere according to claim 6, it is characterised in that：
The crossbeam (8) includes crossbeam base plate (8.1) and the cantilever diaphragm (8.2) being welded in the middle part of crossbeam base plate (8.1)；The crossbeam
Multiple cantilever diaphragm ribbed stiffeners (8.3) are provided between base plate (8.1) and cantilever diaphragm (8.2).
8. double case steel main beam structures of the railroad bridge separate type with independent tuyere according to claim 7, it is characterised in that：
Side box beam side wall is provided with cantilever diaphragm connecting plate (11) and crossbeam base plate connecting plate (12)；The cantilever diaphragm (8.2) is led to
Cross cantilever diaphragm splice plate (13) to splice with cantilever diaphragm connecting plate (11) bolt, the crossbeam base plate (8.1) is by crossbeam bottom
Plate splice plate (14) splices with crossbeam base plate connecting plate (12) bolt.
9. double case steel main beam structures of the railroad bridge separate type with independent tuyere according to claim 6, it is characterised in that：
The floorings ribbed stiffener (9) includes two pieces of floors (9.1), and two pieces of described floor (9.1) one end are welded to connect, and described in two pieces
Arranged in α angles between floor (9.1), wherein 20 °≤α≤100 °；Spelled by floor between adjacent floorings ribbed stiffener (8)
Fishplate bar (15) bolt splices.
10. double case steel main beam structures of the railroad bridge separate type with independent tuyere according to claim 1, its feature exists
In：The independent tuyere includes that the tuyere top board (17) and tuyere base plate (18) of V-shaped arrangement, tuyere top board are welded in one end end
(17) and tuyere base plate (18) between along along bridge to being interval with multiple tuyere diaphragm plates (19)；The tuyere diaphragm plate (19) with
The separate type side box beam sidepiece welding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611116550.5A CN106758740A (en) | 2016-12-07 | 2016-12-07 | A kind of double case steel main beam structures of railroad bridge separate type with independent tuyere |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611116550.5A CN106758740A (en) | 2016-12-07 | 2016-12-07 | A kind of double case steel main beam structures of railroad bridge separate type with independent tuyere |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235228A (en) * | 2018-10-23 | 2019-01-18 | 西南交通大学 | It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability aperture pneumatically construct |
| CN109653075A (en) * | 2019-01-09 | 2019-04-19 | 中铁大桥勘测设计院集团有限公司 | A kind of main beam structure and girder of streamlined more box beams |
| CN109702300A (en) * | 2018-09-28 | 2019-05-03 | 江苏中铁山桥重工有限公司 | A kind of steel box-girder thin plate tuyere welding deformation controlling method |
| CN110886198A (en) * | 2019-12-25 | 2020-03-17 | 西南交通大学 | Tuyere structure for vortex vibration control of rectangular steel box girder bridge |
| CN114214934A (en) * | 2022-01-06 | 2022-03-22 | 中铁大桥勘测设计院集团有限公司 | Girder structure of double-deck bridge floor |
| CN114790706A (en) * | 2022-04-27 | 2022-07-26 | 中铁大桥局集团第五工程有限公司 | Construction method for detachable support of cantilever cast-in-place plate of steel-concrete composite beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109702300A (en) * | 2018-09-28 | 2019-05-03 | 江苏中铁山桥重工有限公司 | A kind of steel box-girder thin plate tuyere welding deformation controlling method |
| CN109235228A (en) * | 2018-10-23 | 2019-01-18 | 西南交通大学 | It is a kind of improve people's row suspension cable vestibule bridge girder galloping stability aperture pneumatically construct |
| CN109653075A (en) * | 2019-01-09 | 2019-04-19 | 中铁大桥勘测设计院集团有限公司 | A kind of main beam structure and girder of streamlined more box beams |
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| CN110886198A (en) * | 2019-12-25 | 2020-03-17 | 西南交通大学 | Tuyere structure for vortex vibration control of rectangular steel box girder bridge |
| CN110886198B (en) * | 2019-12-25 | 2021-06-01 | 西南交通大学 | Tuyere structure for vortex vibration control of rectangular steel box girder bridge |
| CN114214934A (en) * | 2022-01-06 | 2022-03-22 | 中铁大桥勘测设计院集团有限公司 | Girder structure of double-deck bridge floor |
| CN114790706A (en) * | 2022-04-27 | 2022-07-26 | 中铁大桥局集团第五工程有限公司 | Construction method for detachable support of cantilever cast-in-place plate of steel-concrete composite beam |
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Application publication date: 20170531 |
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