CN210458908U - Box-truss combined beam section with highway and railway mixed arrangement - Google Patents
Box-truss combined beam section with highway and railway mixed arrangement Download PDFInfo
- Publication number
- CN210458908U CN210458908U CN201921233247.2U CN201921233247U CN210458908U CN 210458908 U CN210458908 U CN 210458908U CN 201921233247 U CN201921233247 U CN 201921233247U CN 210458908 U CN210458908 U CN 210458908U
- Authority
- CN
- China
- Prior art keywords
- steel
- box
- railway
- highway
- box room
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a highway-railway mixed arrangement's case-purlin combination beam cross-section contains steel case and steel longeron, the steel longeron connect in the steel case top, the steel longeron contains web member and upper chord, the one end of web member connect in upper chord, the other end connect in the steel case, the steel case contains well box room, left box room and right box room, well box room and steel longeron all are used for arranging the railway bridge floor, left side box room and right box room all are used for arranging the highway bridge floor. The cross section structure has the vertical rigidity of the steel truss girder and the transverse rigidity of the steel box, the respective structural stress advantages of the steel truss girder and the steel box are fully utilized, the steel consumption is saved, the transportation capacity of the bridge is greatly improved, the degree of freedom of arrangement of a bridge deck of a highway-railway combined construction bridge is improved, wiring projects on two banks are greatly saved, the mutual influence of highway and railway operation and overhaul is reduced, the operation and maintenance cost is greatly reduced, and the adaptability of a multi-line highway-railway combined construction bridge to the terrain is also improved.
Description
Technical Field
The utility model relates to a public railway co-construction bridge engineering technical field, in particular to box-purlin combination beam cross-section that public railway mixed layout.
Background
With the rapid development of high-speed railways in China in recent years, more and more situations that multi-line railways simultaneously cross high-grade navigation rivers around large and medium-sized cities are encountered, and the landscape, ecology and city planning of the cities are greatly affected due to the fact that a large number of bridges built on the rivers are too large, so that the high-grade navigation rivers are usually built in a highway-railway co-building mode. However, the landforms and connection line projects on both sides of different public and railway co-constructed bridges have great differences, so that the adaptability of the public and railway co-constructed bridge type to the landforms and the connection line projects at both ends is very important.
The existing multi-line highway-railway combined construction bridge mainly has two cross-section forms: one is the section of the upper and lower steel trussed beam, and the other is the section of the flat box girder. However, in both of the sections, a plurality of railway lines are placed on the same layer, which causes difficulty in line untwining between the railway lines and causes certain engineering waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the beam body structure that current public railway built the bridge jointly has the circuit to dredge and has the difficulty, causes the extravagant above-mentioned not enough of waiting of certain engineering, provides the case-purlin composite beam cross-section of public railway mixed layout.
In order to achieve the above object, the present invention provides the following technical solutions:
the box-truss composite beam cross-section that highway-railway mixed layout contains steel box and steel truss, the steel truss connect in the steel box top, the steel truss contain web member and upper chord, the one end of web member connect in upper chord, the other end connect in the steel box, the steel box contains well box room, left box room and right box room, well box room and steel truss all are used for arranging the railway bridge floor, left side box room and right box room all are used for arranging the highway bridge floor.
The box-truss combined beam cross section of the highway-railway hybrid arrangement of the utility model adopts the integral steel box as the lower flange of the steel truss, has excellent stress performance and large rigidity, and is a double-layer box-truss combined cross section formed by the steel box at the lower part and the steel truss at the upper part, the cross section structure not only has the vertical rigidity of the steel truss but also has the transverse rigidity of the steel box girder, the respective structural stress advantages of the steel truss girder and the steel box girder are fully utilized, the steel consumption is saved, the economical efficiency of the structure is improved, the railway lines can be arranged on the upper layer and the lower layer, the transportation capacity of the bridge is greatly improved, the railway lines are respectively arranged at the two sides of the railway line at the lower layer, the mutual operation interference and maintenance interference of the railway and the highway are avoided, the operation and maintenance cost is greatly reduced, the convention that the traditional multi-line highway railway combined bridge is arranged at the same layer is changed, the degree of freedom of arrangement of the highway-railway combined bridge is improved, meanwhile, due to the arrangement of the upper layer and the lower layer of the railway line, the railway line is more convenient to dredge after crossing the river, wiring projects on two banks are greatly saved, and the adaptability of the multi-line highway-railway co-constructed bridge to the terrain is improved.
Preferably, the middle box chamber comprises at least two webs, and the webs are correspondingly arranged right below the web members.
Further preferably, the web member comprises a diagonal web member.
Further preferably, one end of the web member is connected to the upper chord member, and the other end of the web member is connected to the web.
Further preferably, the web member is welded to the web.
The whole planning and arrangement of the double-layer railway line are convenient.
Preferably, the outer side of the left compartment and the outer side of the right compartment are each used for arranging walkways.
Preferably, a diaphragm plate or a stiffening rod is arranged in each of the left box chamber and the right box chamber.
The box-type diaphragm plate or the truss-type stiffening member is arranged, and the structural rigidity and the integrity are improved.
Preferably, the height difference between the top surface of the steel truss girder and the top surface of the steel box is 8-15 m.
The method is beneficial to the untwining of the upper and lower layer railway lines after crossing the river and is more convenient, and a large amount of wiring engineering is saved.
Preferably, the middle box room and the steel truss are each used for arranging at least two railways.
Preferably, a stiffening web is provided below each of the railways in the middle box compartment.
Preferably, an isolation device is arranged between a railway and a road on the steel box, and the isolation device comprises an anti-collision wall, an anti-throwing net and a sound barrier.
The influence of crosswind during the running of the train is reduced, and the running safety is improved.
To sum up, compare with prior art, the beneficial effects of the utility model are that:
1. by adopting the cross section of the box-girder combined beam with the combined arrangement of the highway and the railway, the cross section structure has the vertical rigidity of the steel girder and the transverse rigidity of the steel box, the respective structural stress advantages of the steel girder and the steel box girder are fully utilized, the steel consumption is saved, the structural economy is improved, the transportation capacity of the bridge is greatly improved, the convention that the traditional multi-line railway highway and railway combined bridge arranges railways on the same layer is changed, the freedom degree of the arrangement of the bridge deck of the highway and railway combined bridge is improved, meanwhile, due to the arrangement of the upper layer and the lower layer of the railway line, the railway line is more convenient to dredge after crossing the river, wiring projects on two banks are greatly saved, the mutual influence of the highway and the railway during operation is reduced, the mutual influence of the major repair of the highway bridge floor and the major repair of the railway bridge floor is avoided, the operation and maintenance cost is greatly reduced, and the adaptability of the multi-line highway-railway combined bridge to the terrain is improved.
Description of the drawings:
fig. 1 is a schematic structural diagram of a cross section of a box-truss composite beam with a combined highway and railway arrangement according to the present invention;
fig. 2 is an elevation view of a section of a box-girder composite beam with a mixed arrangement of highway and railway according to the invention.
The labels in the figure are: 1-middle box chamber, 11-web plate, 2-steel truss beam, 21-web member, 22-upper chord, 3-left box chamber, 4-right box chamber, 5-diaphragm plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1, the cross section of the box-truss composite beam with combined highway and railway arrangement of the present invention comprises a steel box and a steel truss 2, wherein the steel truss 2 is connected above the steel box, specifically, the steel truss 2 comprises a web member 21 and an upper chord member 22, a bridge deck is disposed between the upper chord members 22 on both sides, the web member 21 comprises a diagonal web member and can also be provided with a vertical web member, the steel box comprises a middle box chamber 1, a left box chamber 3 and a right box chamber 4, the left box chamber 3 and the right box chamber 4 respectively form an integral box girder with the middle box chamber 1, one end of the web member 21 is connected to the upper chord member 22, the other end is connected to the steel box, the middle box chamber 1 comprises at least two web plates 11, the web plate 11 is correspondingly disposed right below each web member 21, preferably, one end of the web member 21 is welded to the upper chord member 22, and the other end is welded to the top surface of the web plate 11 on the corresponding side, the middle box chamber 1 and the steel trussed beams 2 are used for arranging railway bridge floors, so that overall planning and arrangement of double-layer railway lines are facilitated, preferably, the steel boxes and the steel trussed beams 2 are used for arranging at least two railways, preferably, a stiffening web plate is arranged below each railway in the middle box chamber 1.
Left side case room 3 and right case room 4 all are used for arranging the highway bridge floor, all be equipped with stiffener 5 in left side case room 3 and the right case room 4, both can adopt board-like cross slab, also can adopt truss-like stiffener, effectively improve structural rigidity and wholeness, left side case room 3 and right case room 4 all contain the side web, can be used as the anchor point of suspension cable or hoist cable, the outside of left side case room 3 and the outside of right case room 4 all are used for arranging the pavement, be equipped with isolating device between railway and the highway on the steel case, isolating device includes crashproof wall, prevents throwing net and sound barrier.
Preferably, the height difference between the top surface of the steel truss girder 2 and the top surface of the steel box is 8-15m, so that the upper and lower layer railway lines are more convenient to untwist after crossing the river, and a large amount of wiring engineering is saved.
The utility model adopts the section of the box-truss combined beam with the mixed arrangement of the highway and the railway, adopts the whole-hole steel box as the lower flange of the steel truss beam 2, and forms the double-layer box-truss combined section by the steel box beam at the lower part and the steel truss beam 2 at the upper part, the section structure not only has the vertical rigidity of the steel truss beam, but also has the transverse rigidity of the steel box, the respective structural stress advantages of the steel truss beam and the steel box are fully utilized, the steel consumption is saved, the economical efficiency of the structure is improved, so that the upper layer and the lower layer can be provided with railway lines, the transportation capacity of the bridge is greatly improved, the railway lines at the two sides of the lower layer are respectively provided with the highway lines, the mutual operation interference and maintenance interference of the railway and the highway are avoided, the operation and maintenance cost is greatly reduced, the convention that the traditional multi-line railway combined bridge is arranged at the same layer is changed, the occupation of excessive river resources is avoided, and the degree of freedom of arrangement of the, meanwhile, due to the arrangement of the upper layer and the lower layer of the railway line, the railway line is more convenient to dredge after crossing the river, wiring projects on two banks are greatly saved, and the adaptability of the multi-line highway-railway co-constructed bridge to the terrain is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. .
Claims (10)
1. Box-purlin combination beam cross-section that highway-railway mixed was arranged, its characterized in that contains steel case and steel longeron (2), steel longeron (2) connect in the steel case top, steel longeron (2) contain web member (21) and last chord member (22), the one end of web member (21) connect in go up chord member (22), the other end connect in the steel case, the steel case contains well box room (1), left box room (3) and right box room (4), well box room (1) and steel longeron (2) all are used for arranging the railway bridge floor, left side box room (3) and right box room (4) all are used for arranging the highway bridge floor.
2. Composite beam section according to claim 1, characterised in that the middle box chamber (1) contains at least two webs (11), the webs (11) being provided directly below the web members (21) in correspondence.
3. Composite beam section according to claim 2, wherein the web member (21) is connected to the upper chord (22) at one end and to the web (11) at the other end.
4. Composite beam section according to claim 3, wherein the web members (21) are welded to the web (11).
5. Composite beam section according to claim 1, characterised in that the outside of the left box room (3) and the outside of the right box room (4) are both used for arranging walkways.
6. Composite beam section according to claim 1, characterised in that a diaphragm or stiffener (5) is provided in each of the left (3) and right (4) compartments.
7. A composite beam section according to any one of claims 1 to 6, characterised in that the height difference between the top surface of the steel girder (2) and the top surface of the steel box is 8-15 m.
8. Composite beam section according to any of claims 1-6, characterized in that the middle box room (1) and the steel girder (2) are each used for laying at least two railways.
9. A composite beam section according to any one of claims 1 to 6, characterised in that a stiffening web is provided below each said railway in said intermediate box compartment (1).
10. A composite beam section according to any one of claims 1 to 6, wherein insulation means are provided between the railways and highways on the steel box, said insulation means comprising impact walls, anti-drop nets and sound barriers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921233247.2U CN210458908U (en) | 2019-07-31 | 2019-07-31 | Box-truss combined beam section with highway and railway mixed arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921233247.2U CN210458908U (en) | 2019-07-31 | 2019-07-31 | Box-truss combined beam section with highway and railway mixed arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210458908U true CN210458908U (en) | 2020-05-05 |
Family
ID=70449097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921233247.2U Active CN210458908U (en) | 2019-07-31 | 2019-07-31 | Box-truss combined beam section with highway and railway mixed arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210458908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359355A (en) * | 2019-07-31 | 2019-10-22 | 中铁二院工程集团有限责任公司 | Combine beam section in the case of rail-road mixed-arrangement-purlin |
-
2019
- 2019-07-31 CN CN201921233247.2U patent/CN210458908U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359355A (en) * | 2019-07-31 | 2019-10-22 | 中铁二院工程集团有限责任公司 | Combine beam section in the case of rail-road mixed-arrangement-purlin |
| WO2021018119A1 (en) * | 2019-07-31 | 2021-02-04 | 中铁二院工程集团有限责任公司 | Combined road-rail box-truss girder bridge section |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021018119A1 (en) | Combined road-rail box-truss girder bridge section | |
| CN104594173B (en) | One kind embraces rail magnetic levitation track traffic box beam | |
| CN201144398Y (en) | Straddling type track traffic elevated 'bridge-build' structure | |
| CN105735101B (en) | A kind of high-speed railway repairing beam and its emergency repair method that can be exchanged into permanent bridge structure | |
| CN204282185U (en) | A kind of armful rail magnetic levitation track traffic bridge | |
| CN111962372A (en) | Road-rail combined construction steel web member double-combination continuous truss girder and construction method thereof | |
| CN203320392U (en) | Six-line double-layer railway bridge variable section steel truss girder structure | |
| CN210458908U (en) | Box-truss combined beam section with highway and railway mixed arrangement | |
| WO2008077319A1 (en) | Underground tunnel combined with ground road | |
| CN108677679A (en) | Overhead steel reinforced concrete combination beam | |
| CN109930469B (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| CN111979893A (en) | Box-shaped combined beam of railway long-span cable-stayed bridge | |
| CN201390928Y (en) | Support rail continuous beam in double track railway | |
| WO2016082689A1 (en) | Rail holding type magnetic levitation track transit box girder | |
| CN213836256U (en) | Steel structure box girder bridge structure for PRT | |
| CN206328669U (en) | The narrow composite beam of steel box of new concrete | |
| CN105696455A (en) | Box type web simply supported U-shaped girder of double-track railway | |
| CN214005365U (en) | Steel structure box girder bridge straight-line bridge structure for PRT | |
| CN113584962A (en) | Rubber-tyred tramcar double-box steel-concrete combined track beam structure and construction method thereof | |
| CN108677627A (en) | A kind of cross-saddle single-track traffic single line steel-composite rail beam structure | |
| CN212452237U (en) | Continuous rigid frame-steel truss combined bridge for highway-railway layering | |
| CN209941469U (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| CN218932830U (en) | Compound traffic double-line composite track beam bridge system suitable for intelligent micro-rail | |
| CN215366771U (en) | Concrete superstructure of longitudinal and transverse beams stressed by bidirectional plates of level crossing bridge | |
| CN213896712U (en) | Steel structure box girder bridge bifurcation section bridge structure for PRT |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |