CN204662236U - Multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure - Google Patents
Multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure Download PDFInfo
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- CN204662236U CN204662236U CN201520271194.9U CN201520271194U CN204662236U CN 204662236 U CN204662236 U CN 204662236U CN 201520271194 U CN201520271194 U CN 201520271194U CN 204662236 U CN204662236 U CN 204662236U
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- truss girder
- steel truss
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Abstract
Multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure, to adapt to the requirement of railroad bridge layering, heavy duty well, each circuit operation does not interfere with each other mutually.Comprise steel truss girder and bridge deck, the section of described steel truss girder comprises the purlin, the left side of middle purlin and both sides, purlin, the right, and face, middle purlin is perpendicular to horizontal plane, and purlin, the left side, purlin, the right face tilt, form three purlin inverted trapezoidal sections.Described bridge deck comprises the upper deck of bridge system being arranged on steel truss girder end face and the lower floor's bridge deck being arranged on steel truss girder bottom surface.
Description
Technical field
The utility model relates to railroad bridge, particularly multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure.
Background technology
Flourish along with China's communication, multiple line railway bridge, non-major P.E.subject ceaselessly emerge in large numbers.No matter be multiple line railway bridge or road-cum-rail bridge, all may adopt layered arrangement scheme wide at the top and narrow at the bottom.Build bridge jointly for public iron, highway bridge width generally can reach more than 30m, and the width of railroad bridge two-wire only needs 14m; For multiple line railway bridge wide at the top and narrow at the bottom, the width that also there is upper deck of bridge demand is greater than the situation of lower floor's bridge floor.The span of bridge is also increasing, and the load of bridge also gets more and more, rod member stressed also increasing, and how inventing a kind of novel steel truss girder section and solve multi-thread hierarchical rail bridge floor Layout Problem, is very urgent.
Traditional steel truss girder mainly adopts two panels main truss rectangular cross section, and extremely indivedual bridge have employed three main truss rectangular cross sections, also has indivedual bridge to have employed the scheme of two panels main truss sprit section.In order to solve engineering construction needs, adapt to the requirement of layering, heavy duty, a kind of three purlin inverted trapezoidal steel truss girder sections arise at the historic moment.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure, and to adapt to the requirement of railroad bridge layering, heavy duty well, each circuit operation does not interfere with each other mutually.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
Multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure of the present utility model, comprise steel truss girder and bridge deck, it is characterized in that: the section of described steel truss girder comprises the purlin, the left side of middle purlin and both sides, purlin, the right, face, middle purlin is perpendicular to horizontal plane, purlin, the left side, purlin, the right face tilt, form three purlin inverted trapezoidal sections; Described bridge deck comprises the upper deck of bridge system being arranged on steel truss girder end face and the lower floor's bridge deck being arranged on steel truss girder bottom surface.
The beneficial effects of the utility model are, railway line adopts hierarchical layout, is convenient to the design of access bridge; Trapezoidal cross-section meets the layout of wide download on multiple line railway bridge; Independently, operation does not interfere with each other mutually for upper lower leaf, space; Outside two panels main truss tilts, and reduces the span of lower floor's bridge floor, can effectively save structural steel amount; Three main trusses can facilitate correspondence to arrange three rope face cable stayed bridges, avoid the problem that two rope face bridge single cable Suo Li is excessive; Three main trusses meet the steel truss girder load bearing requirements of large span, heavy haul railway bridge, and the stressed of single rod member is only about 2/3 of two purlins scheme, greatly can increase the span of bridge construction.
Accompanying drawing explanation
This manual comprises as next width accompanying drawing:
Fig. 1 is the schematic diagram of the utility model multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure;
Component shown in figure and corresponding mark: middle purlin 10, purlin, the left side 11, purlin, the right 12, upper deck of bridge system 21, lower floor's bridge deck 22, left horizontal-associate 23, right horizontal-associate 24.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1, multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure of the present utility model, comprise steel truss girder and bridge deck, the section of described steel truss girder comprises purlin, the left side 11, the purlin, the right 12 of middle purlin 10 and both sides, 10, middle purlin is perpendicular to horizontal plane, purlin, the left side 11, purlin, the right 12 face tilt, form three purlin inverted trapezoidal sections.Three main trusses can facilitate correspondence to arrange three rope face cable stayed bridges, avoid the problem that two rope face bridge single cable Suo Li is excessive; Three main trusses meet the steel truss girder load bearing requirements of large span, heavy haul railway bridge, and the stressed of single rod member is only about 2/3 of two purlins scheme, greatly can increase the span of bridge construction.
With reference to Fig. 1, described bridge deck comprises the upper deck of bridge system 21 being arranged on steel truss girder end face and the lower floor's bridge deck 22 being arranged on steel truss girder bottom surface.In the figure, four-track line is put by upper deck of bridge system 21, lower floor's bridge deck 22 is arranged two line railways, namely adopt the layout of four times two.The design of access bridge is convenient in this hierarchical layout, and trapezoidal cross-section meets the layout of wide download on multiple line railway bridge, and independently, operation does not interfere with each other mutually for upper lower leaf, space.Purlin, the left side 11, outside, purlin, the right 12 tilt, and reduce the span of lower floor's bridge floor, can effectively save structural steel amount.
With reference to Fig. 1, between described middle purlin 10 and purlin, the left side 11, left horizontal-associate 23 is set, between middle purlin 10 and purlin, the right 12, right horizontal-associate 24 is set.According to the requirement such as function, road-ability, described upper deck of bridge system 21, lower floor's bridge deck 22 adopt Orthotropic Steel Bridge Deck or beam railway ballast groove bridge deck in length and breadth.
Some principles of the above the utility model multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure that just explains through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (3)
1. multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure, comprise steel truss girder and bridge deck, it is characterized in that: the section of described steel truss girder comprises the purlin, the left side (11) of middle purlin (10) and both sides, purlin, the right (12), middle purlin (10) face is perpendicular to horizontal plane, purlin, the left side (11), purlin, the right (12) face tilt, form three purlin inverted trapezoidal sections; Described bridge deck comprises the upper deck of bridge system (21) being arranged on steel truss girder end face and the lower floor's bridge deck (22) being arranged on steel truss girder bottom surface.
2. multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure as claimed in claim 1, it is characterized in that: between described middle purlin (10) and purlin, the left side (11), left horizontal-associate (23) is set, right horizontal-associate (24) is set between middle purlin (10) and purlin, the right (12).
3. multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure as claimed in claim 1, is characterized in that: described upper deck of bridge system (21), lower floor's bridge deck (22) adopt Orthotropic Steel Bridge Deck or beam railway ballast groove bridge deck in length and breadth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520271194.9U CN204662236U (en) | 2015-04-29 | 2015-04-29 | Multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520271194.9U CN204662236U (en) | 2015-04-29 | 2015-04-29 | Multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure |
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| Publication Number | Publication Date |
|---|---|
| CN204662236U true CN204662236U (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520271194.9U Active CN204662236U (en) | 2015-04-29 | 2015-04-29 | Multi-thread hierarchical rail bridge three main truss trapezoidal cross-section structure |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758739A (en) * | 2017-01-23 | 2017-05-31 | 中铁二院工程集团有限责任公司 | Bridge bilayer main beam section construction is built in a kind of highway, railway or track traffic jointly |
| CN107574763A (en) * | 2017-09-28 | 2018-01-12 | 中交二航局第四工程有限公司 | A kind of three main truss steel truss girder substep closure construction methods |
-
2015
- 2015-04-29 CN CN201520271194.9U patent/CN204662236U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758739A (en) * | 2017-01-23 | 2017-05-31 | 中铁二院工程集团有限责任公司 | Bridge bilayer main beam section construction is built in a kind of highway, railway or track traffic jointly |
| CN106758739B (en) * | 2017-01-23 | 2019-04-12 | 中铁二院工程集团有限责任公司 | Bridge bilayer main beam section construction is built in a kind of highway, railway or rail traffic jointly |
| CN107574763A (en) * | 2017-09-28 | 2018-01-12 | 中交二航局第四工程有限公司 | A kind of three main truss steel truss girder substep closure construction methods |
| CN107574763B (en) * | 2017-09-28 | 2019-04-02 | 中交二航局第四工程有限公司 | A kind of three main truss steel truss girder substep closure construction methods |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |