CN109056494A - A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder - Google Patents
A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder Download PDFInfo
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- CN109056494A CN109056494A CN201811119711.5A CN201811119711A CN109056494A CN 109056494 A CN109056494 A CN 109056494A CN 201811119711 A CN201811119711 A CN 201811119711A CN 109056494 A CN109056494 A CN 109056494A
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- Prior art keywords
- crossbeam
- ultra
- steel truss
- truss girder
- sectional configuration
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 239000007769 metal material Substances 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to railroad bridge, especially a kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder.It include: steel truss girder, the crossbeam and lateral brace, crossbeam for being used to support route are located at the top of steel truss girder, lateral brace is located at below the crossbeam, it is connect in the middle part of one end of lateral brace and crossbeam, the other end of lateral brace is connect with steel truss girder, and lateral brace is in tilted layout on route section.Beneficial effect is: because lateral brace acts on crossbeam vertical support, the vertical deflection of dead load and live loading lower beam greatly reduced, the horizontal depth of beam of the wide bridge deck in ultra-wide purlin is effectively reduced, the effect for thereby realizing and saving material, reduce self weight.
Description
Technical field
The present invention relates to railroad bridge, especially a kind of ultra-wide cross section structure suitable for double track railway deck type steel truss girder
It makes.
Background technique
Steel truss girder is a kind of railroad bridge commonly bridge type, also frequently as holding in Long-Span Railway Cable-Stayed Bridge or suspension bridge
Carrier beam and largely used.Cross bearer, big stringer system as bridge deck in steel-truss frequently with one of form, by Steel Bridge Deck
Plate, crossbeam, cross rib and stringer composition, bridge floor vertical load mainly passes to crossbeam by stringer, then passes to main truss section by crossbeam
Point.Rail iron trusses purlin width is when within 15 meters, because bridge deck stringer span is generally at 13 meters or so, bridge deck crossbeam and vertical
Beam stress is suitable, therefore the two height is not much different.Lateral Stiffness of Railway Bridge is to influence the principal element of train travel stability
One of, therefore the railroad bridge of certain across footpath need to guarantee certain transverse width.Span reaches the LONG-SPAN RAILWAY of 600m or more
Bridge, transverse width generally will be more than 20 meters, become ultra-wide section.
The bridge deck crossbeam span of ultra-wide section is more much larger than bridge deck stringer span, so under identical load, crossbeam
Amount of deflection also increases, and the prior art is excessive in order to solve the problems, such as crossbeam amount of deflection, often increases horizontal depth of beam, while being arranged pre-
Camber；But lead to the rolled steel dosage of crossbeam and the increase of self weight in this way, to increase cost.
Summary of the invention
Goal of the invention of the invention is: in view of the problems of the existing technology, providing one kind can be reduced material consumption, drop
The ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder of low self weight.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder, including steel truss girder, including for branch
The crossbeam and lateral brace, crossbeam for supportting route are located at the top of steel truss girder, and lateral brace is located at below the crossbeam, one end of lateral brace
It is connect with crossbeam middle part, the other end of lateral brace is connect with steel truss girder, and lateral brace is in tilted layout on route section.
The ultra-wide cross-sectional configuration of the application greatly reduces dead load because lateral brace acts on crossbeam vertical support
With the vertical deflection of live loading lower beam, the horizontal depth of beam of the wide bridge deck in ultra-wide purlin is effectively reduced, section is thereby realized
Material saving, the effect for reducing self weight.
As a preferred solution of the present invention, lateral brace is hollow tubular structure.
As a preferred solution of the present invention, lateral brace is connect by rotatable mode with crossbeam, and lateral brace passes through
Rotatable mode is connect with steel truss girder.
As a preferred solution of the present invention, rotatable mode is to be connected by articulation piece.
As a preferred solution of the present invention, lateral brace is at least two, vertical center line of the lateral brace relative to crossbeam
Mirror-image arrangement.
As a preferred solution of the present invention, the connection of lateral brace and steel truss girder is located at the node of steel truss girder, node position
In the perpendicular web member of steel truss girder and the junction of lower boom.
As a preferred solution of the present invention, the both ends of crossbeam are connected by high-strength bolts with steel truss girder.
As a preferred solution of the present invention, ultra-wide cross-sectional configuration is made of metal material.
As a preferred solution of the present invention, metal material is the carbon steel or alloy that yield strength is greater than or equal to 190Mpa
Steel.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, crossbeam vertical support is acted on because of lateral brace, greatly reduces the vertical of dead load and live loading lower beam
Amount of deflection effectively reduces the horizontal depth of beam of the wide bridge deck in ultra-wide purlin, the effect for thereby realizing and saving material, reduce self weight；
2, when also saving production crossbeam simultaneously the step of setting camber, facilitate the manufacturing of crossbeam.
Detailed description of the invention
Fig. 1 is cross-sectional configuration schematic diagram at 1 crossbeam of ultra-wide cross-sectional configuration embodiment；
Fig. 2 is schematic cross-sectional view at 1 cross rib of ultra-wide cross-sectional configuration embodiment；
Marked in the figure: 1- top boom, 2- lower boom, 3- erect web member, 4- diagonal web member, 5- crossbeam, 6- cross rib, 7- stringer, 8-
Lateral brace, 9- bottom lateral bracing cross bar, 10- bottom lateral bracing brace, 11- central lines of track.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment 1
A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder as shown in Figs. 1-2, including steel truss
Beam, crossbeam 5 and lateral brace 8, crossbeam 5 including being used to support route are located at the top of steel truss girder, and lateral brace 8 is located at crossbeam 5
Lower section connects in the middle part of one end of lateral brace 8 and crossbeam 5, and the other end of lateral brace 8 is connect with steel truss girder, and lateral brace 8 exists
It is in tilted layout on route section.
The ultra-wide cross-sectional configuration of the application greatly reduces perseverance because lateral brace 8 acts on 5 vertical support of crossbeam
The vertical deflection with live loading lower beam 5 is carried, the height of the wide bridge deck crossbeam 5 in ultra-wide purlin is effectively reduced, thus realizes
When saving material, reduce the effect of self weight, while production crossbeam 5 can also be saved the step of setting camber, facilitate manufacture.
Fig. 1 is cross-sectional configuration at crossbeam, including top boom 1, lower boom 2, perpendicular web member 3, crossbeam 5, stringer 7, transverse direction are tiltedly
Bar 8, bottom lateral bracing cross bar 9.
Fig. 2 is cross-sectional configuration at cross rib, including top boom 1, lower boom 2, diagonal web member 4, cross rib 6, stringer 7, transverse direction are tiltedly
Bar 8, bottom lateral bracing brace 10.
Top boom 1, lower boom 2, perpendicular web member 3, diagonal web member 4 are steel truss girder main truss component；Crossbeam 5, cross rib 6 and stringer 7 are
Bridge deck component；Bottom lateral bracing cross bar 9 and bottom lateral bracing brace 10 are bottom lateral bracing component；Lateral brace 8 is only arranged at node, serves as
Lateral connection system and crossbeam vertical support dual function.
Bridge deck vertical load, including dead load and train load, are transmitted by following approach:
1, stringer 7 transmits crossbeam 5, and crossbeam 5 transmits chord node on main truss；
2, stringer 7 transmits crossbeam 5, and crossbeam 5 transmits lateral brace 8, and lateral brace 8 transmits main truss lower-chord panel point.
22m wide to purlin, 5 meters of line spacing of double-line railway bridge, using the bridge deck beam height of the application design by 2.4 meters
1.6 meters are reduced to, vertical displacement of the crossbeam under main role is also reduced to 5 millimeters by 21 millimeters.
Further, lateral brace 8 is hollow tubular structure.
Further, lateral brace 8 is connect by rotatable mode with crossbeam 5, and lateral brace 8 passes through rotatable side
Formula is connect with steel truss girder.
Further, rotatable mode is to be connected by articulation piece.
Further, lateral brace 8 is at least two, vertical center line mirror-image arrangement of the lateral brace 8 relative to crossbeam 5.
Further, the connection of lateral brace 8 and steel truss girder is located at the node of steel truss girder, and node is located at the perpendicular of steel truss girder
The junction of web member and lower boom 2.
Further, the both ends of crossbeam 5 are connected by high-strength bolts with steel truss girder.
Further, ultra-wide cross-sectional configuration is made of metal material.
Further, metal material is the carbon steel or steel alloy that yield strength is greater than or equal to 190Mpa.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder, including steel truss girder, which is characterized in that also
Crossbeam and lateral brace, the crossbeam including being used to support route are located at the top of the steel truss girder, and the transverse direction brace is located at
The below the crossbeam, one end and crossbeam middle part of the transverse direction brace are connect, the other end of the transverse direction brace and the steel truss
Beam connection, the transverse direction brace are in tilted layout on route section.
2. ultra-wide cross-sectional configuration according to claim 1, which is characterized in that the transverse direction brace is hollow tubular knot
Structure.
3. ultra-wide cross-sectional configuration according to claim 2, which is characterized in that the transverse direction brace passes through rotatable side
Formula is connect with the crossbeam, and the transverse direction brace is connect by rotatable mode with steel truss girder.
4. ultra-wide cross-sectional configuration according to claim 3, which is characterized in that the transverse direction brace and the steel truss girder are logical
Cross articulation piece connection.
5. ultra-wide cross-sectional configuration according to claim 4, which is characterized in that the transverse direction brace is at least two, institute
State vertical center line mirror-image arrangement of the lateral brace relative to crossbeam.
6. ultra-wide cross-sectional configuration according to claim 5, which is characterized in that the transverse direction brace and the steel truss girder
Connection is located at the node of the steel truss girder, and the node is located at the perpendicular web member of steel truss girder and the junction of lower boom.
7. ultra-wide cross-sectional configuration according to claim 5, which is characterized in that the both ends of the crossbeam and the steel truss girder
It is connected by high-strength bolts.
8. ultra-wide cross-sectional configuration described in any one of -7 according to claim 1, which is characterized in that ultra-wide cross section structure
It makes and is made of metal material.
9. ultra-wide cross-sectional configuration according to claim 8, which is characterized in that the metal material is greater than for yield strength
Or carbon steel or steel alloy equal to 190Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119711.5A CN109056494A (en) | 2018-09-25 | 2018-09-25 | A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119711.5A CN109056494A (en) | 2018-09-25 | 2018-09-25 | A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder |
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|---|---|
| CN109056494A true CN109056494A (en) | 2018-12-21 |
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| CN201811119711.5A Pending CN109056494A (en) | 2018-09-25 | 2018-09-25 | A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373787A (en) * | 2021-06-18 | 2021-09-10 | 中铁大桥勘测设计院集团有限公司 | Ultra-wide truss bridge structure system and design method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB754380A (en) * | 1954-03-25 | 1956-08-08 | Thos Storey Eng Ltd | Improvements in or relating to bridges |
| CN201292499Y (en) * | 2008-08-20 | 2009-08-19 | 北京锦泰安联桥梁钢构技术有限公司 | Waveform steel web multi-purpose case girder |
| WO2013157732A1 (en) * | 2012-04-15 | 2013-10-24 | Won Dae-Yon | The composite girder having web members with various patterns |
| CN203603030U (en) * | 2013-11-25 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Steel box truss beam |
| CN206279438U (en) * | 2016-12-01 | 2017-06-27 | 中铁第四勘察设计院集团有限公司 | A kind of short tower steel truss girder cable-stayed bridge of steel |
| CN108342980A (en) * | 2018-04-04 | 2018-07-31 | 中铁第四勘察设计院集团有限公司 | A kind of railway suspension bridge steel-truss deck bridge face structure |
| CN208830121U (en) * | 2018-09-25 | 2019-05-07 | 中国铁路总公司 | A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder |
-
2018
- 2018-09-25 CN CN201811119711.5A patent/CN109056494A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB754380A (en) * | 1954-03-25 | 1956-08-08 | Thos Storey Eng Ltd | Improvements in or relating to bridges |
| CN201292499Y (en) * | 2008-08-20 | 2009-08-19 | 北京锦泰安联桥梁钢构技术有限公司 | Waveform steel web multi-purpose case girder |
| WO2013157732A1 (en) * | 2012-04-15 | 2013-10-24 | Won Dae-Yon | The composite girder having web members with various patterns |
| CN203603030U (en) * | 2013-11-25 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Steel box truss beam |
| CN206279438U (en) * | 2016-12-01 | 2017-06-27 | 中铁第四勘察设计院集团有限公司 | A kind of short tower steel truss girder cable-stayed bridge of steel |
| CN108342980A (en) * | 2018-04-04 | 2018-07-31 | 中铁第四勘察设计院集团有限公司 | A kind of railway suspension bridge steel-truss deck bridge face structure |
| CN208830121U (en) * | 2018-09-25 | 2019-05-07 | 中国铁路总公司 | A kind of ultra-wide cross-sectional configuration suitable for double track railway deck type steel truss girder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373787A (en) * | 2021-06-18 | 2021-09-10 | 中铁大桥勘测设计院集团有限公司 | Ultra-wide truss bridge structure system and design method thereof |
| CN113373787B (en) * | 2021-06-18 | 2022-05-06 | 中铁大桥勘测设计院集团有限公司 | Ultra-wide truss bridge structure system and design method thereof |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |
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| RJ01 | Rejection of invention patent application after publication |