CN204491392U - A kind of Longspan Bridge - Google Patents
A kind of Longspan Bridge Download PDFInfo
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- CN204491392U CN204491392U CN201520096470.2U CN201520096470U CN204491392U CN 204491392 U CN204491392 U CN 204491392U CN 201520096470 U CN201520096470 U CN 201520096470U CN 204491392 U CN204491392 U CN 204491392U
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- bridge
- reinforcing rib
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- span
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Abstract
The utility model discloses a kind of Longspan Bridge, comprise bridge pier, bearing, bridge span structure and bridge deck structure, described bridge pier adopts dual-row design, described bridge span structure comprises longitudinal main span structure and horizontal cantilever structure, described longitudinal main span structure is the cantilever construction extended to both sides from bridge pier, described longitudinal main span inside configuration is provided with main span reinforcing rib, described horizontal cantilever structure horizontal running through is arranged in the longitudinal main span structures of two rows, and both sides cantilever stretches out in longitudinal main span structural outer, described horizontal cantilever inside configuration is provided with cantilever reinforcing rib, described bridge deck structure is arranged on bridge span structure, described bridge deck structure inside is provided with bridge floor reinforcing rib, and bridge floor reinforcing rib is between adjacent two bridge piers.This Longspan Bridge adopts novel bridge span structure, simultaneously by rational reinforcing rib layout, can increase single hole span, achieve the large span of continuous girder bridge, is specially adapted to the use of high ferro without tiny fragments of stone, coal, etc. road viaduct.
Description
Technical field
The utility model relates to bridge technology field, is specially a kind of Longspan Bridge.
Background technology
Continuous girder bridge has the advantages such as rigidity is large, good integrity, overload capacity are large, degree of safety is large, often be employed when some single hole spans are less, but when single hole span is larger, existing continuous girder bridge just can not reach requirement, at this moment often cable stayed bridge is adopted, the type of bridge of the large spans such as suspension bridge, but the cost of these bridges is often higher, also has the situation being not suitable for building these bridges in addition.Such as, in recent years, rapidly, especially all the more so in high ferro field, generally adopt continuous girder bridge at the bridge construction in high ferro field, cable stayed bridge and suspension bridge are all not too applicable in China railways development, and require increasing to the span of continuous girder bridge.
Summary of the invention
The purpose of this utility model is, for above-mentioned the deficiencies in the prior art, to provide a kind of Longspan Bridge.
The technical solution of the utility model is achieved in that a kind of Longspan Bridge, comprise bridge pier, bearing, bridge span structure and bridge deck structure, bridge span structure by seat supports on bridge pier, described bridge pier adopts dual-row design, described bridge span structure comprises longitudinal main span structure and horizontal cantilever structure, described longitudinal main span structure is the cantilever construction extended to both sides from bridge pier, be connected to form the continuous structure body that each hole is arch, and correspond to two-row structure with bridge pier, described longitudinal main span inside configuration is provided with main span reinforcing rib, described horizontal cantilever structure horizontal running through is arranged in the longitudinal main span structures of two rows, by horizontal cantilever structure, the longitudinal main span structure of two rows forms entirety, and both sides cantilever stretches out in longitudinal main span structural outer, described horizontal cantilever inside configuration is provided with cantilever reinforcing rib, described bridge deck structure is arranged on bridge span structure, described bridge deck structure inside is provided with bridge floor reinforcing rib, and bridge floor reinforcing rib is between adjacent two bridge piers.
Preferably, described bridge pier is provided with bridge pier understructure, for preventing pier sinking being positioned at riverbed or ground place.
Preferably, the paving mode of described main span reinforcing rib is bottom that longitudinally main span structure is positioned at bridge pier place extends to peak from longitudinal main span structure cantilever to both sides, and main span reinforcing rib evenly lays multilayer by different levels.
Preferably, the bottom place that described main span reinforcing rib is being positioned at longitudinal main span structure and is positioned at bridge pier place connects into entirety by reinforced steel.
Preferably, the paving mode of described cantilever reinforcing rib is the trend of transversely cantilever construction, extends to the inside of longitudinal main span structure from two top ends of horizontal cantilever structure, is connected as a single entity with longitudinal main span structure.
Preferably, the intersection that described cantilever reinforcing rib is extending to longitudinal main span inside configuration connects into entirety by reinforced steel.
Preferably, described longitudinal main span structure and horizontal cantilever structure are the overall structure of monobloc cast simultaneously.
Preferably, described bridge floor reinforcing rib extends to bridge span structure inside, and when bridge deck structure adopts different from bridge span structure, the mode of monobloc cast forms overall structure.
Preferably, described bridge span structure adopts three to five holes to make overall structure, forms one.
Compared with prior art, the beneficial effects of the utility model are: this Longspan Bridge belongs to continuous girder bridge, the longitudinal main span structure of double narrow body is adopted to add the bridge span structure of the novel hollow out of horizontal cantilever structure, compared with traditional continuous girder bridge, the design of this hollow out can alleviate the entirety deadweight of bridge greatly, and longitudinal main span structure adopts arch design, on this basis, can increase the span of bridge further; The increase of bridge span structure inside is provided with reinforcing rib, especially at the Kong Dingchu of longitudinal main span structure, not only longitudinal main span vibrational power flow has reinforcing rib, and bridge deck structure is also provided with reinforcing rib herein, greatly can improve the rigidity at longitudinal main span structure hole top place, and then greatly increase the span of bridge, be applicable to the construction of high-speed rail bridge instantly; Bridge pier bottom is provided with bridge pier understructure, can prevent pier sinking, reduces the internal force change in each hole of beam body caused due to pier sinking.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is the utility model external structure schematic front view;
Fig. 2 is the utility model external structure schematic side view;
Fig. 3 is that the utility model internal main looks distribution map across reinforcing rib and bridge floor reinforcing rib master;
Fig. 4 is the utility model inner cantilever reinforcing rib side-looking distribution map;
Fig. 5 is that the utility model bridge floor reinforcing rib overlooks distribution map.
In figure: 1, bridge pier, 11, bridge pier understructure, 2, bearing, 3, bridge span structure, 31, longitudinal main span structure, 311, main span reinforcing rib, 32, horizontal cantilever structure, 321, cantilever reinforcing rib, 4, bridge deck structure, 41, bridge floor reinforcing rib, 5, reinforced steel.
Detailed description of the invention
Refer to Fig. 1-2, the utility model provides a kind of technical scheme: a kind of Longspan Bridge, comprise bridge pier 1, bearing 2, bridge span structure 3 and bridge deck structure 4, bridge pier 1 is provided with bridge pier understructure 11 being positioned at riverbed or ground place, for preventing bridge pier 1 from sinking, avoid because bridge pier 1 sinks to causing the internal force in each hole of bridge span structure 3 to change.Bridge span structure 3 is supported on bridge pier by bearing 2, and bridge pier 1 adopts dual-row design.Bridge span structure 3 comprises longitudinal main span structure 31 and horizontal cantilever structure 32, longitudinal main span structure 31 is the cantilever construction extended from bridge pier 1 to both sides, be connected to form the continuous structure body that each hole is arch, and corresponding to two-row structure with bridge pier 1, longitudinal main span structure 31 inside is provided with main span reinforcing rib 311.Horizontal cantilever structure 32 horizontal running through is arranged in the longitudinal main span structures 31 of two rows, by horizontal cantilever structure 32, the longitudinal main span structure 31 of two rows forms entirety, and both sides cantilever stretches out in longitudinal main span structure 31 outside, and horizontal cantilever structure 32 inside is provided with cantilever reinforcing rib 321.Longitudinal main span structure 31 and horizontal cantilever structure 32 adopt the form of construction work of monobloc cast simultaneously, make longitudinal main span structure 31 and horizontal cantilever structure 32 form overall structure, can greatly improve integrally-built rigidity.Bridge span structure 3 adopts three to five holes to make overall structure, forms one.Bridge deck structure 4 is arranged on bridge span structure 3, bridge deck structure 4 inside is provided with bridge floor reinforcing rib 41, and bridge floor reinforcing rib 41 is between adjacent two bridge piers 1, this position is in the vault place that longitudinal main span structure 31 overarches, this position is the weakness of whole bridge span structure 3, increase at this integral rigidity that bridge floor reinforcing rib 41 can increase bridge span structure 3 further, have very large benefit to increase span.
Fig. 3-5 represents that form is laid in the distribution of each reinforcing rib, the paving mode of main span reinforcing rib 311 is bottom that longitudinally main span structure 3 is positioned at bridge pier 1 place extends to peak from longitudinal main span structure 3 cantilever to both sides, and main span reinforcing rib 311 evenly lays multilayer by different levels, be two-layer in the embodiment of this figure, the bottom place that main span reinforcing rib 311 is being positioned at longitudinal main span structure 3 and is positioned at bridge pier 1 place connects into entirety by reinforced steel 5, can improve rigidity further.The paving mode of cantilever reinforcing rib 321 is the trend of transversely cantilever construction 32, the inside of longitudinal main span structure 31 is extended to from two top ends of horizontal cantilever structure 32, be connected as a single entity with longitudinal main span structure 31, the intersection that cantilever reinforcing rib 321 is extending to longitudinal main span structure 31 inside connects into entirety by reinforced steel 5, can improve rigidity further.It is inner that bridge floor reinforcing rib 41 extends to bridge span structure 3, and when bridge deck structure 4 adopts different from bridge span structure 3, the mode of monobloc cast forms overall structure, achieves globality, is conducive to the increase of span.By the setting of each reinforcing rib, this utility model can be made to realize the large span of single hole, be conducive to there is stronger applicability to various different landform, more meet the needs of present social development.
Above illustrated embodiment is better embodiment of the present utility model, only be used for conveniently the utility model being described, not any pro forma restriction is done to the utility model, have in any art and usually know the knowledgeable, if do not depart from the utility model carry in the scope of technical characteristic, utilize the utility model disclose the Equivalent embodiments changing or modify in the done local of technology contents, and do not depart from technical characteristic content of the present utility model, all still belong in the scope of the utility model technical characteristic.
Claims (9)
1. a Longspan Bridge, comprise bridge pier, bearing, bridge span structure and bridge deck structure, bridge span structure by seat supports on bridge pier, it is characterized in that: described bridge pier adopts dual-row design, described bridge span structure comprises longitudinal main span structure and horizontal cantilever structure, described longitudinal main span structure is the cantilever construction extended to both sides from bridge pier, be connected to form the continuous structure body that each hole is arch, and correspond to two-row structure with bridge pier, described longitudinal main span inside configuration is provided with main span reinforcing rib, described horizontal cantilever structure horizontal running through is arranged in the longitudinal main span structures of two rows, by horizontal cantilever structure, the longitudinal main span structure of two rows forms entirety, and both sides cantilever stretches out in longitudinal main span structural outer, described horizontal cantilever inside configuration is provided with cantilever reinforcing rib, described bridge deck structure is arranged on bridge span structure, described bridge deck structure inside is provided with bridge floor reinforcing rib, and bridge floor reinforcing rib is between adjacent two bridge piers.
2. a kind of Longspan Bridge according to claim 1, is characterized in that: described bridge pier is provided with bridge pier understructure, for preventing pier sinking being positioned at riverbed or ground place.
3. a kind of Longspan Bridge according to claim 1, it is characterized in that: the paving mode of described main span reinforcing rib is bottom that longitudinally main span structure is positioned at bridge pier place extends to peak from longitudinal main span structure cantilever to both sides, and main span reinforcing rib evenly lays multilayer by different levels.
4. a kind of Longspan Bridge according to claim 3, is characterized in that: the bottom place that described main span reinforcing rib is being positioned at longitudinal main span structure and is positioned at bridge pier place connects into entirety by reinforced steel.
5. a kind of Longspan Bridge according to claim 1, it is characterized in that: the paving mode of described cantilever reinforcing rib is the trend of transversely cantilever construction, extend to the inside of longitudinal main span structure from two top ends of horizontal cantilever structure, be connected as a single entity with longitudinal main span structure.
6. a kind of Longspan Bridge according to claim 5, is characterized in that: the intersection that described cantilever reinforcing rib is extending to longitudinal main span inside configuration connects into entirety by reinforced steel.
7. a kind of Longspan Bridge according to claim 1, is characterized in that: described longitudinal main span structure and horizontal cantilever structure are the overall structure of monobloc cast simultaneously.
8. a kind of Longspan Bridge according to claim 1, is characterized in that: described bridge floor reinforcing rib extends to bridge span structure inside, and when bridge deck structure adopts different from bridge span structure, the mode of monobloc cast forms overall structure.
9. a kind of Longspan Bridge according to claim 1, is characterized in that: described bridge span structure adopts three to five holes to make overall structure, forms one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520096470.2U CN204491392U (en) | 2015-02-11 | 2015-02-11 | A kind of Longspan Bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520096470.2U CN204491392U (en) | 2015-02-11 | 2015-02-11 | A kind of Longspan Bridge |
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| Publication Number | Publication Date |
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| CN204491392U true CN204491392U (en) | 2015-07-22 |
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| CN201520096470.2U Active CN204491392U (en) | 2015-02-11 | 2015-02-11 | A kind of Longspan Bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024311A (en) * | 2018-07-16 | 2018-12-18 | 张继莹 | A kind of bridge strengthening device |
| CN112227188A (en) * | 2020-10-07 | 2021-01-15 | 代潇男 | Bridge leg depth limiter suitable for emergency rescue and disaster relief at breach of dam in yellow river water conservancy |
-
2015
- 2015-02-11 CN CN201520096470.2U patent/CN204491392U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024311A (en) * | 2018-07-16 | 2018-12-18 | 张继莹 | A kind of bridge strengthening device |
| CN112227188A (en) * | 2020-10-07 | 2021-01-15 | 代潇男 | Bridge leg depth limiter suitable for emergency rescue and disaster relief at breach of dam in yellow river water conservancy |
| CN112227188B (en) * | 2020-10-07 | 2022-03-11 | 代潇男 | Bridge leg depth limiter suitable for emergency rescue and disaster relief at breach of dam in yellow river water conservancy |
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