CN106544949A - A kind of double case steel main beam structures of railroad bridge separate type without independent tuyere - Google Patents
A kind of double case steel main beam structures of railroad bridge separate type without independent tuyere Download PDFInfo
- Publication number
- CN106544949A CN106544949A CN201611116510.0A CN201611116510A CN106544949A CN 106544949 A CN106544949 A CN 106544949A CN 201611116510 A CN201611116510 A CN 201611116510A CN 106544949 A CN106544949 A CN 106544949A
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- China
- Prior art keywords
- separate type
- bridge
- box beam
- plate
- side box
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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
- 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
Abstract
The present invention disclose a kind of railroad bridge separate type without independent tuyere pair case steel main beam structure, including bridge deck, is equipped with separate type side box beam in the both sides of bridge deck direction across bridge；The separate type side box beam side and the bridge deck bolt-weld joint；The separate type side box beam include multistage along bridge to arrangement separate type side box beam section, along bridge to adjacent separate type side box beam section by bolt splicing.Clearly, local stability sex chromosome mosaicism is less for the main beam structure stress of present invention design；Overall steel box beam is compared, 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, splicing operation loaded down with trivial details between node is reduced, and reduces steel using amount, and outer surface of the present invention is succinct, maintenance amount is few；The present invention is good for medium and small span Wind-resistance of Bridges performance.
Description
Technical field
The invention belongs to bridge technology field, and in particular to a kind of main beam structure suitable for medium and small span railroad bridge.
Background technology
Existing Railway Cable-stayed Bridge main beam structure form adopts steel truss girder or overall steel box beam, although steel truss girder and overall steel
Box beam technology is more ripe, but in place of still suffering from following imperfection：
(1) for steel truss girder, girder section is higher, it is difficult to using concrete girder structure, therefore general full-bridge is tied using steel
Structure girder, steel using amount are very big, less economical；Secondly as joint structure, splice plate are more and rod member slenderness ratio is larger and steady
The factors such as qualitative contrlol design, the stock utilization of steel truss girder be not high；Again, steel truss girder global sections height is big, and rod member is more, wind
Resistance coefficient is big, and bluff body section wind resistance is poor, and in coastal typhoon prone areas, the driving wind speed threshold values of train seems low；Most
Afterwards, steel girder member bar is various, although transporting and hoisting is convenient, but whole sections concatenation construction difficulty is big, and single rod member concatenation construction
Progress is slower, and construction precision has high demands.
(2) for overall steel box beam, which constructively needs to arrange the crowds such as base plate, the web of top board and bridge floor equal in width
Many plates, most of plates are minimum thickness (local stability) control design cases, need to additionally arrange more stiffener and ensure plate
Local stability, have the space for further being lifted in stock utilization.Additionally, whole section of steel box girder size is larger, no
Just transport, typically prefabricated in factory using Slab element, the construction method that total welding connects in building site causes Site Welding amount very
Greatly, there is larger difficulty in construction quality and Construction precision control.Train traffic safety and comfortableness require that railroad bridge is necessary
Locally certain lateral stiffness, and Long-Span Railway Cable-Stayed Bridge then needs to widen section according to integral steel box beam section, leads
Cause stock utilization not high, it is less economical.
The content of the invention
For the series of problems that the steel truss girder described in background technology and overall steel box beam are present in railroad bridge application,
It is an object of the invention to provide one kind meets intensity, rigidity, stability requirement, preferable wind resistance can be reached again, and can be carried
What high stock utilization reduced construction costs meets intensity, rigidity, stability requirement, can reach preferable wind resistance, and energy again
Improving stock utilization reduces the double case steel main beam structures of the railroad bridge separate type without independent tuyere of construction costs.
In order to achieve the above object, the double case steel girder knots of the railroad bridge separate type without independent tuyere 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 and the bridge deck bolt-weld joint；The separate type side box beam includes multistage along bridge to the separate type side box beam arranged
Section, is spliced by bolt to adjacent separate type side box beam section along bridge.
Preferably, on the inside of the separate type side box beam with the bridge deck bolt-weld joint, outside is provided with flow-guiding structure.
Preferably, the 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, four side of the diaphragm plate 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；The outer web bag
The first outer web and the second outer web are included, described first outer web one end is connected with top board, the other end and second outer web one end
Connection, the other end of the second outer web are connected with base plate；Protrusion is provided between the first outer web and the second outer web
The obtuse angle angle of separate type side box beam outer surface forms the flow-guiding 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 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, through hole is provided with the middle part of the diaphragm plate, the through hole is provided with the horizontal stroke of the protrusion tabula plate surface along week
Dividing plate ribs.
As another preferred version, the bridge deck include direction across bridge arrangement with the bolted horizontal stroke of separate type side box beam
Beam, be carried on the crossbeam it is multiple along bridge to arrange 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 splicing by cantilever diaphragm splice plate with cantilever diaphragm, 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, wherein 20 °≤α≤100 °.
It is further preferred that splicing crab bolt splicing by floor between adjacent floorings ribbed stiffener.
The invention has the beneficial effects as follows：Main beam structure had both combined the advantage of traditional steel truss girder and traditional steel box-girder, while
Both shortcomings are turn avoid, it is applied widely, at a high speed with short construction period, economy protrusion, reliable construction quality, structure
The characteristics of train travel comfortableness is good.First, relative to steel truss girder, the quantity of rod member is reduced, the construction period is accelerated；The
Two, steel truss girder is compared, its outer surface is succinct, and maintenance amount is few；3rd, steel truss girder is compared, the main beam structure can adopt class
The hybrid beam version of main span steel case, end bay concrete box girder like overall steel box beam, so as to steel using amount about 60% can be saved,
Greatly improve the economy of bridge；4th, for overall steel box beam, the main beam structure will be conventional overall steel box beam whole
On section, scattered stress has focused on two edge-beams, stress definitely, concentrate, so as to thickness of slab is thicker, local stability
Problem is less, need not arrange extra ribbed stiffener to ensure the local stability of conventional overall steel box beam thin plate, can answer steel
Power is improved and is not limited by local stability, and stock utilization is high, can reduce steel using amount about 10～20%；5th, relative to
For overall steel box beam, two detached small side case+3 parts of floorings are changed into from single FCL, scantling is greatly reduced,
Manufacture in factory such that it is able to overall, it is to avoid manufacture in conventional overall steel box beam only plate unit factory and total at the scene
The drawbacks of spelling welding forming, it is to avoid excessive site welding, so as to rib construction precision and construction quality is effectively ensured, this
Highway transportation is also beneficial to outward, the poor bridge place of traffic condition is particularly well-suited to.6th, compare overall steel box beam, this master
Two side casees of girder construction are distributed in section both sides, so as to substantially increase the horizontal bending rigidity of beam body, are more beneficial at a high speed
Lateral stiffness demand during train operation, it is ensured that the safety of road driving and comfortableness.7th, projection can play certain
Tuyere is acted on, and can improve the wind resistance of bridge, can meet the wind resistance needs of general non-typhoon region bridge.
Description of the drawings
Fig. 1 is the structural representation of the present invention
Fig. 2 is the exploded perspective structural representation one of separate type side box beam section of the present invention
Fig. 3 is the exploded perspective structural representation two of separate type side box beam section of the present invention
Fig. 4 is the exploded perspective structural representation of bridge deck of the present invention
Fig. 5 is the enlarged diagram in Fig. 4 at A
Fig. 6 is the stereochemical structure exploded perspective view of half ribbed stiffener of bridge floor of bridge deck of the present invention
In figure：Top board 1, base plate 2, endosternum 3, outer web 4 (the first outer web 4.1, the second outer web 4.2), diaphragm plate 5
(through hole 5.1, diaphragm plate ribs 5.2), inhaul cable anchorage structure 6, ribs 7,8 (crossbeam base plate 8.1, cantilever diaphragm of crossbeam
8.2nd, cantilever diaphragm ribbed stiffener 8.3), floorings ribbed stiffener 9 (floor 9.1), floorings 10, cantilever diaphragm connecting plate 11 and horizontal stroke
Beam base plate connecting plate 12, cantilever diaphragm splice plate 13, beam base plate splice plate 14, floor splice plate 15, the splicing of end-blocking plate 16, box beam
Plate 17.
Specific embodiment
Below by Fig. 1～Fig. 6 and the mode of some alternative embodiments for enumerating the present invention, the technical side to the present 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 the railroad bridge separate type without independent tuyere of present invention design
Include bridge deck, separate type side box beam is equipped with the both sides of bridge deck direction across bridge；The separate type side box beam side and the bridge
Face system bolt connection, opposite side are provided with flow-guiding structure；The separate type side box beam includes multistage along bridge to the separate type side arranged
Box beam section, is 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 includes that end welds the top board 1, base plate for surrounding rectangle successively
2nd, endosternum 3 and outer web 4；Multiple diaphragm plates 5,5 four side of the diaphragm plate are interval with along separate type side box beam length direction
It is welded to connect with top board 1, base plate 2, endosternum 3,4 inwall of outer web respectively；The side box beam section is additionally provided with inhaul cable anchorage structure
6；The outer web 4 includes the first outer web 4.1 and the second outer web 4.2, and described first outer web, 4.1 one end is connected with top board 1
Connect, the other end is connected with 4.2 one end of the second outer web, the other end of the second outer web 4.2 is connected with base plate 2；Described
It is provided between one outer web 4.1 and the second outer web 4.2 and protrudes from the obtuse angle angle of separate type side box beam outer surface and form described
Flow-guiding structure, the flow-guiding structure serve the effect of tuyere.In the top board 1, base plate 2,4 inwall of endosternum 3 and outer web
On be equipped with multiple spaced ribs 7；The diaphragm plate 5 is provided with the caulking groove of the accommodating ribs 7, the reinforcement
Rib 7 is welded to connect with the diaphragm plate 5 in inserting the caulking groove；The adjacent top board 1, base plate 2, endosternum 3, outer web 4
Spliced by bolt using box beam splice plate 17 with 7 end of ribs.The beam body main body of separate type side box beam can so be formed
Structure.
As shown in Figure 2 again, it is preferred that to be provided with through hole 5.1 in the middle part of the diaphragm plate 5, the through hole is along being provided with prominent institute week
State the diaphragm plate ribs 5.2 on 5 surface of diaphragm plate.
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 suitable bridge on the crossbeam 8 is loaded in the floorings ribbed stiffener 9, the bridge being laid on the floorings ribbed stiffener 9 for arranging
Panel 10.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, multiple 8.3 edges of cantilever diaphragm ribbed stiffener 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 by cantilever diaphragm splice plate 13 and the splicing of 11 bolt of cantilever diaphragm connecting plate, the crossbeam base plate 8.1
Spliced with 12 bolt of crossbeam base plate connecting plate by crossbeam base plate splice plate 14.
As shown in figure 5, the floorings ribbed stiffener 9 includes two pieces of floors 9.1, two pieces of 9.1 one end of floor welding connect
Connect, and arrange in α angles between two pieces of floors 9.1, wherein 20 °≤α≤100 °.Between adjacent floorings ribbed stiffener 9
Spliced by 15 bolt of floor splice plate.End-blocking plate 16 is additionally provided with 9 two ends of floorings ribbed stiffener.
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
Bright, all any modifications made under the spirit and principles in the present invention, combination, replacement, improvement etc. are all contained in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. the double case steel main beam structure of a kind of railroad bridge separate type without independent tuyere, it is characterised in that：Including bridge deck, in bridge
The both sides of face system direction across bridge are equipped with separate type side box beam；With the bridge deck bolt-weld joint on the inside of the separate type side box beam；
The separate type side box beam include multistage along bridge to arrangement separate type side box beam section, along bridge to adjacent separate type side box beam section
Spliced by bolt.
2. the double case steel main beam structure of the railroad bridge separate type without independent tuyere according to claim 1, it is characterised in that：
With the bridge deck bolt-weld joint on the inside of the separate type side box beam, outside is provided with flow-guiding structure；The separate type side box beam section
Weld top board (1), base plate (2), endosternum (3) and the outer web (4) for surrounding rectangle including end successively；Along separate type side box beam
Length direction is interval with multiple diaphragm plates (5), (5) four side of the diaphragm plate respectively with top board (1), base plate (2), endosternum
(3), outer web (4) inwall is welded to connect；The side box beam section is additionally provided with inhaul cable anchorage structure (6)；The outer web (4) includes
First outer web (4.1) and the second outer web (4.2)；Described first outer web (4.2) one end is connected with top board (1), the other end
It is connected with second outer web (4.2) one end, the other end of the second outer web (4.2) is connected with base plate (2), outside described first
The obtuse angle angle that prominent separate type side box beam outer surface is provided between web (4.1) and the second outer web (4.2) forms described
Flow-guiding structure.
3. the double case steel main beam structure of the railroad bridge separate type without 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.
4. the double case steel main beam structure of the railroad bridge separate type without independent tuyere according to claim 3, it is characterised in that：
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.
5. the double case steel main beam structure of the railroad bridge separate type without 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 (17) end utilize box beam splice plate
(17) spliced by bolt.
6. the double case steel main beam structures of the railroad bridge separate type without independent tuyere according to claim 2 or 4, its feature exist
In：It is provided with through hole (5.1) in the middle part of the diaphragm plate (5), the through hole (5.1) is along being provided with protrusion diaphragm plate (5) surface week
Diaphragm plate ribs (5.2).
7. the double case steel main beam structure of the railroad bridge separate type without 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)
It is multiple along bridge to arrange floorings ribbed stiffener (9), the floorings (10) being laid on the floorings ribbed stiffener (9).
8. the double case steel main beam structure of the railroad bridge separate type without independent tuyere according to claim 7, it is characterised in that：
The crossbeam (9) 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).
9. the double case steel main beam structure of the railroad bridge separate type without independent tuyere according to claim 8, 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) is spliced with crossbeam base plate connecting plate (12) bolt.
10. the double case steel main beam structure of the railroad bridge separate type without independent tuyere according to claim 7, its feature exist
In：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 two pieces
Arrange in α angles between the floor (9.1), wherein 20 °≤α≤100 °；Pass through rib between adjacent floorings ribbed stiffener (9)
Plate splice plate (15) bolt splices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611116510.0A CN106544949A (en) | 2016-12-07 | 2016-12-07 | A kind of double case steel main beam structures of railroad bridge separate type without independent tuyere |
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|---|---|---|---|
| CN201611116510.0A CN106544949A (en) | 2016-12-07 | 2016-12-07 | A kind of double case steel main beam structures of railroad bridge separate type without independent tuyere |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142831A (en) * | 2017-05-23 | 2017-09-08 | 中建钢构有限公司 | Bicycle high speed steel box girder and preparation method thereof |
| CN107604804A (en) * | 2017-09-27 | 2018-01-19 | 中铁第四勘察设计院集团有限公司 | A kind of rail-road builds multi pylon cable stayed bridge with laminated |
| CN108729338A (en) * | 2018-05-22 | 2018-11-02 | 东南大学 | A kind of separate type bridge structure and its ameliorative way improving wind resistance |
| 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 |
| CN111058367A (en) * | 2019-12-31 | 2020-04-24 | 江苏沪宁钢机股份有限公司 | Oval box girder and manufacturing method thereof |
| CN111851256A (en) * | 2020-08-31 | 2020-10-30 | 中铁二院工程集团有限责任公司 | Cable-stayed bridge main beam connected with anchor plate |
| 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 |
|---|---|---|---|---|
| CN107142831A (en) * | 2017-05-23 | 2017-09-08 | 中建钢构有限公司 | Bicycle high speed steel box girder and preparation method thereof |
| CN107604804A (en) * | 2017-09-27 | 2018-01-19 | 中铁第四勘察设计院集团有限公司 | A kind of rail-road builds multi pylon cable stayed bridge with laminated |
| CN107604804B (en) * | 2017-09-27 | 2023-07-04 | 中铁第四勘察设计院集团有限公司 | Multi-tower cable-stayed bridge with common-rail and laminated layers |
| CN108729338A (en) * | 2018-05-22 | 2018-11-02 | 东南大学 | A kind of separate type bridge structure and its ameliorative way improving wind resistance |
| CN108729338B (en) * | 2018-05-22 | 2020-01-03 | 东南大学 | Separated bridge structure for improving wind resistance and improving method thereof |
| 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 |
| 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 |
| CN111058367A (en) * | 2019-12-31 | 2020-04-24 | 江苏沪宁钢机股份有限公司 | Oval box girder and manufacturing method thereof |
| CN111058367B (en) * | 2019-12-31 | 2021-05-28 | 江苏沪宁钢机股份有限公司 | Oval box girder and manufacturing method thereof |
| CN111851256A (en) * | 2020-08-31 | 2020-10-30 | 中铁二院工程集团有限责任公司 | Cable-stayed bridge main beam connected with anchor plate |
| 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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