CN203320392U - Six-line double-layer railway bridge variable section steel truss girder structure - Google Patents
Six-line double-layer railway bridge variable section steel truss girder structure Download PDFInfo
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- CN203320392U CN203320392U CN2013203474689U CN201320347468U CN203320392U CN 203320392 U CN203320392 U CN 203320392U CN 2013203474689 U CN2013203474689 U CN 2013203474689U CN 201320347468 U CN201320347468 U CN 201320347468U CN 203320392 U CN203320392 U CN 203320392U
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Abstract
The utility model discloses a six-line double-layer railway bridge variable section steel truss girder structure, so as to effectively use upper space and lower space of a steel beam, reasonably control the width of a main truss, and reduce the steel consumption of a bridge. A steel truss girder comprises two main trusses, namely a left main truss (11) and a right main truss (12), as well as an upper bridge floor and a lower bridge floor; the upper ends and the lower ends of the upper bridge floor and the lower bridge floor are respectively fixedly connected with the left main truss (11) and the right main truss (12); the section of the steel truss girder is in an inverted trapezoidal structure; the upper bridge floor is in an orthogonal special-shaped bridge floor structure; four railway lines are paved on the upper bridge floor; a transverse connecting structure is arranged below the orthogonal special-shaped bridge floor structure, and forms a truss beam system; the lower bridge floor adopts a dense beam orthogonal special-shaped steel bridge floor plate system, and two railway lines are paved on the lower bridge floor.
Description
Technical field
The utility model relates to railroad bridge, particularly a kind of six line double-deck railroad bridging section steel girder structures.
Background technology
As maximum in the world developing country, China is vast in territory, and products resource is abundant, populous.Along with socioeconomic development, various resources are badly in need of distributing rationally, and this development to traffic transport industry has proposed urgent requirement.The soldier at the head of a formation as carrier, railway is strong with its transporting power, expense is low, ride comfort, particularly come into one's own by the advantages such as weather effect is little, the inevitable direction that this makes that speed is fast, span is large, the multi-thread technical characterstic such as parallel becomes development of railway, and Steel truss structure has, rigidity is large, span ability large, member is easy to the various features such as reparation and replacing, becomes one of selection of Longspan Bridge.China emerges a collection of Railway Cable-stayed Bridge in recent years, but no matter be the combined Yangtze Bridge of the Huang gang as main span 567m of two-wire, the Tongling Yangtze Bridge of main span 630m, also or the parallel Anqing Changjiang bridge of four-track line, the new Ganjiang Bridge in east, all exist that railway line is less, the operation load is on the low side, the wider and lower problem of vertical utilization rate of cross section lateral dimension, as need increase railway line way, the bridge lateral width will significantly increase, and structural cost significantly improves; On the other hand in order to adapt to requirement that railway transportation capability significantly promotes and the rational deployment of the railway network, meet many railway lines simultaneously across the needs in river and the reasonable utilization in girder steel space, being badly in need of designing a kind of is the steel truss girder section form that safety economy can meet again the multiple line railway Operational requirements.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of large span six line double-deck iron road and bridge steel truss girder structures, effectively to utilize girder steel levels space, rationally controls the main truss width, reduces the bridge steel plate amount.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
Six line double-deck railroad bridging section steel girder structures of the present utility model, it is characterized in that: this steel truss girder comprises left side main truss, two main trusses of right side main truss, and being fixedly connected with left side main truss, the upper deck of bridge of right side main truss, lower floor's bridge floor at upper and lower end respectively, the cross section of this steel truss girder is inverted trapezoidal structure; Upper deck of bridge is quadrature abnormity bridge deck structure, arranges the four-track line line on it, under quadrature abnormity bridge deck structure, the horizontal-associate structure is set, and the trussed girder system; Lower floor's bridge floor is that close crossbeam Orthotropic Steel Bridge Deck is, arranges the double track railway line on it.
The beneficial effects of the utility model are, can meet the needs of six line Long-span railway bridges fully, and take full advantage of upper and lower two sheaf spaces of steel truss girder, have saved the land seizure scope, have saved construction costs; Six line layerings, four-track line is arranged on upper strata, lower floor arranges double track railway, has greatly reduced the access bridge circuit and has discongested difficulty, can realize easily passenger-cargo separation, is convenient to the maintenance in later stage; Adopt two main truss structure, can meet the structure stress requirement, can avoid again the low shortcoming of three main truss structure horizontal space utilization rates, reduce distance between centers of tracks simultaneously, be beneficial to the access bridge line arrangement, two perseverances are corresponding minimizing also, can share bridge pier and basis, reduce steel using amount, reduce the full-bridge cost; With respect to domestic existing four-track line bridge, this upper strata, cross section main truss width is only 24.5m, and transverse width is little, and the crossbeam span is little, is beneficial to the crossbeam optimal design; The wide 14.5m in lower floor purlin, space utilization is reasonable, is guaranteeing can to reduce lower floor's crossbeam height when girder steel lateral stiffness and torsional rigidity meet the demands, and the reduction purlin is high; Horizontal-associate structure utilization rate is higher, large to the reasonable stressed contribution of structural system, less with respect to ，Gai cross section, " rectangle " cross section steel using amount.
The utility model has compliance and referentiability preferably for six lines and the railroad bridge more than six lines.
The accompanying drawing explanation
This manual comprises as next width accompanying drawing:
Fig. 1 is the section structure schematic diagram of the utility model six line double-deck railroad bridging section steel girder structures.
Member and corresponding mark in figure: left side main truss 11, right side main truss 12; Upper deck of bridge crossbeam 21, horizontal-associate chord member 22, upper strata quadrature abnormity bridge deck 23, horizontal-associate web member 24; Lower floor's crossbeam 31, lower floor's quadrature abnormity bridge deck 32, concrete railway ballast frid 33.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1, six line double-deck railroad bridging section steel girder structures, comprise left side main truss 11,12 two main trusses of right side main truss, and be fixedly connected with left side main truss 11, the upper deck of bridge of right side main truss 12, lower floor's bridge floor at upper and lower end respectively, the cross section of this steel truss girder is inverted trapezoidal structure; Upper deck of bridge is quadrature abnormity bridge deck structure, arranges the four-track line line on it, under quadrature abnormity bridge deck structure, the horizontal-associate structure is set, and the trussed girder system; Lower floor's bridge floor is that close crossbeam Orthotropic Steel Bridge Deck is, arranges the double track railway line on it.
The utility model has effectively utilized the space of steel truss girder levels, can accomplish that objective line, goods line separate, and reduces the phase mutual interference, improves driving efficiency, can meet the demand that sextuple tracks is runed simultaneously.
Adopt two main truss structure, can meet the structure stress requirement, can avoid again the low shortcoming of three main truss structure horizontal space utilization rates, reduce distance between centers of tracks simultaneously, be beneficial to the access bridge line arrangement, two perseverances are corresponding minimizing also, can share bridge pier and basis, reduce steel using amount, reduce the full-bridge cost simultaneously.With respect to domestic existing four-track line bridge, this upper strata, cross section main truss width is only 24.5m, and transverse width is little, and the crossbeam span is little, is beneficial to the crossbeam optimal design.The wide 14.5m in lower floor purlin, space utilization is reasonable, is guaranteeing can to reduce lower floor's crossbeam height when girder steel lateral stiffness and torsional rigidity meet the demands, and the reduction purlin is high.Horizontal-associate structure utilization rate is higher, large to the reasonable stressed contribution of structural system, less with respect to ，Gai cross section, " rectangle " cross section steel using amount.Upper deck of bridge utilizes " horizontal-associate+orthotropic plate " to form the huge girder truss system of horizontal bearing load ability, upper deck of bridge adopts beam Orthotropic Steel Bridge Deck system in length and breadth, when for girder steel, providing effective lateral ties, can effectively prevent the impact on lower floor's train operation safety of upper deck of bridge railway ballast and train pendant thing.
With reference to Fig. 1, described upper deck of bridge comprises upper deck of bridge crossbeam 21 and quadrature abnormity bridge deck 23, and the two ends of upper deck of bridge crossbeam 21 are fixedly connected with the upper chord of left side main truss 11, right side main truss 12.Described girder truss system consists of the horizontal-associate web member 24 that parallels upper deck of bridge crossbeam 21, horizontal-associate chord member 22 and be fixedly connected with therebetween, and the two ends of horizontal-associate chord member 22 are fixedly connected with left side main truss 11, right side main truss 13 respectively.
With reference to Fig. 1, described lower floor bridge floor adopts the girder construction in length and breadth consisted of lower floor's crossbeam 31, lower floor's longeron 32, and lower floor's crossbeam 31 two ends are fixedly connected with the lower chord of left side main truss 11, right side main truss 11.Hanging rod structure comprises vertical suspension rod 41 and the oblique suspension rod 42 that is arranged in lower floor's bridge floor 2 line freight rail line outsides, the two ends of vertical suspension rod 41 are fixedly connected with horizontal-associate chord member 22, lower floor's crossbeam 31 respectively, and the two ends of oblique suspension rod 42 are fixedly connected with lower floor crossbeam 31, left side main truss 11 or right side main truss 11 respectively.
With reference to Fig. 1, described lower floor bridge floor comprises lower floor's crossbeam 31, lower floor's longeron and lower floor's quadrature abnormity bridge deck 32 fixedly connected thereto, and lower floor's crossbeam 31 two ends are fixedly connected with the lower chord of left side main truss 11, right side main truss 12.Weld WELDING STUDS on lower floor's longeron, shelve concrete railway ballast frid 33 on it.
Claims (5)
1. six line double-deck railroad bridging section steel girder structures, it is characterized in that: this steel truss girder comprises left side main truss (11), (12) two main trusses of right side main truss, and being fixedly connected with left side main truss (11), the upper deck of bridge of right side main truss (12), lower floor's bridge floor at upper and lower end respectively, the cross section of this steel truss girder is inverted trapezoidal structure; Upper deck of bridge is quadrature abnormity bridge deck structure, arranges the four-track line line on it, under quadrature abnormity bridge deck structure, the horizontal-associate structure is set, and the trussed girder system; Lower floor's bridge floor is that close crossbeam Orthotropic Steel Bridge Deck is, arranges the double track railway line on it.
2. six line double-deck railroad bridging section steel girder structures as claimed in claim 1, it is characterized in that: described upper deck of bridge comprises the upper strata quadrature abnormity bridge deck (23) that upper deck of bridge crossbeam (21) is fixedly connected thereto, and the two ends of upper deck of bridge crossbeam (21) are fixedly connected with the upper chord of left side main truss (11), right side main truss (12).
3. six line double-deck railroad bridging section steel girder structures as claimed in claim 2, it is characterized in that: described girder truss system consists of the horizontal-associate web member (24) that parallels upper deck of bridge crossbeam (21), horizontal-associate chord member (22) and be fixedly connected with therebetween, and the two ends of horizontal-associate chord member (22) are fixedly connected with left side main truss (11), right side main truss (11) respectively.
4. six line double-deck railroad bridging section steel girder structures as claimed in claim 1, it is characterized in that: described lower floor bridge floor comprises lower floor's crossbeam (31), lower floor's longeron and lower floor's quadrature abnormity bridge deck (32) fixedly connected thereto, and lower floor's crossbeam (31) two ends are fixedly connected with the lower chord of left side main truss (11), right side main truss (12).
5. six line double-deck railroad bridging section steel girder structures as claimed in claim 1, is characterized in that: weld WELDING STUDS on described lower floor longeron, shelve concrete railway ballast frid (33) on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203474689U CN203320392U (en) | 2013-06-17 | 2013-06-17 | Six-line double-layer railway bridge variable section steel truss girder structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203474689U CN203320392U (en) | 2013-06-17 | 2013-06-17 | Six-line double-layer railway bridge variable section steel truss girder structure |
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| CN203320392U true CN203320392U (en) | 2013-12-04 |
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| CN2013203474689U Expired - Lifetime CN203320392U (en) | 2013-06-17 | 2013-06-17 | Six-line double-layer railway bridge variable section steel truss girder structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924502A (en) * | 2014-04-24 | 2014-07-16 | 林同棪国际工程咨询（中国）有限公司 | Multi-layer bridge face highway-light railway dual-purpose bridge |
| CN106917356A (en) * | 2017-03-13 | 2017-07-04 | 中铁四局集团钢结构有限公司 | A kind of new steel truss girder bridge railway ballast frid Efficient installation method |
| CN106988201A (en) * | 2017-03-16 | 2017-07-28 | 中铁大桥勘测设计院集团有限公司 | A kind of double deck girder of suspension bridge structure |
| CN108252223A (en) * | 2018-02-07 | 2018-07-06 | 中铁大桥勘测设计院集团有限公司 | The installation method and connection structure of the horizontal-associate structure of steel truss girder |
| 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 |
| CN113622300A (en) * | 2021-08-04 | 2021-11-09 | 中铁大桥勘测设计院集团有限公司 | Wide bridge deck variable truss sheet type suspension bridge steel truss girder and truss sheet design method |
-
2013
- 2013-06-17 CN CN2013203474689U patent/CN203320392U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924502A (en) * | 2014-04-24 | 2014-07-16 | 林同棪国际工程咨询（中国）有限公司 | Multi-layer bridge face highway-light railway dual-purpose bridge |
| CN103924502B (en) * | 2014-04-24 | 2016-08-31 | 林同棪国际工程咨询（中国）有限公司 | Multilayer deck rail-cum-road bridge beam |
| CN106917356A (en) * | 2017-03-13 | 2017-07-04 | 中铁四局集团钢结构有限公司 | A kind of new steel truss girder bridge railway ballast frid Efficient installation method |
| CN106917356B (en) * | 2017-03-13 | 2018-07-27 | 中铁四局集团钢结构有限公司 | A kind of novel steel truss girder bridge railway ballast frid Efficient installation method |
| CN106988201A (en) * | 2017-03-16 | 2017-07-28 | 中铁大桥勘测设计院集团有限公司 | A kind of double deck girder of suspension bridge structure |
| CN108252223A (en) * | 2018-02-07 | 2018-07-06 | 中铁大桥勘测设计院集团有限公司 | The installation method and connection structure of the horizontal-associate structure of steel truss girder |
| 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 |
| CN113622300A (en) * | 2021-08-04 | 2021-11-09 | 中铁大桥勘测设计院集团有限公司 | Wide bridge deck variable truss sheet type suspension bridge steel truss girder and truss sheet design method |
| CN113622300B (en) * | 2021-08-04 | 2022-10-18 | 中铁大桥勘测设计院集团有限公司 | Wide bridge deck variable truss sheet type suspension bridge steel truss girder and truss sheet design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
|
| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 4, 2023, the expiration and termination of the 39 volume 2701 patent Number: 27-01 Volume: 39 |
|
| CU01 | Correction of utility model |