CN114922053A - Public rail is with layer bridge floor separation structure - Google Patents
Public rail is with layer bridge floor separation structure Download PDFInfo
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- CN114922053A CN114922053A CN202210613401.9A CN202210613401A CN114922053A CN 114922053 A CN114922053 A CN 114922053A CN 202210613401 A CN202210613401 A CN 202210613401A CN 114922053 A CN114922053 A CN 114922053A
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- bridge
- heightening
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- separation structure
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- 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
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- 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- 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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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The application relates to a public rail is with layer bridge floor isolating construction includes: the bridge body is arranged in a downhill manner from the main bridge to the direction of the embankment; the heightening beam is arranged on the bridge deck of the bridge body and is arranged along the longitudinal bridge direction, the railway track bed is arranged on the heightening beam, and the height of the heightening beam is gradually increased from the main bridge to the embankment direction. The highway bridge floor separation device has the advantages that due to the arrangement of the heightening beams, the common piers of the highway rails can be separated from the bridge floor of the co-building bridge section in the same layer arrangement, and the requirements of the highway and the longitudinal slope of the track are met respectively, so that the highway approach bridge length can be shortened, the highway can be quickly accessed into a near-ground traffic network, and the connection of near-ground traffic of two banks is facilitated.
Description
Technical Field
The application relates to the technical field of bridge engineering, in particular to a common rail same-layer bridge deck separation structure.
Background
At present, due to the shortage of bridge resources in modern cities, urban roads and rail transit usually adopt a common rail co-construction mode to cross river channels, after bridges cross river channels, rail transit generally adopts an overhead mode to access stations, and urban roads need to access a near-earth traffic network. The maximum longitudinal slope of the conventional highway and track specifications is different, the maximum longitudinal slope of a common highway is 5 percent, the maximum longitudinal slope of track traffic is 3 percent, and the requirement of the longitudinal slope of the track is higher than that of the highway.
In the traditional design, for a bridge with public rails arranged on the same layer, a main bridge section is built by co-pier construction, the highway and the rail longitudinal slope are the same, and then, in an approach bridge section, separation of the public rails is realized by adopting separation piers.
However, the conventional design for separating the public rail causes the long bridge of the public road and the far landing point of the ramp, which is not favorable for the connection of the near-land traffic of the two banks.
Disclosure of Invention
The embodiment of the application provides a public rail is with layer bridge floor separation structure to solve the public rail separation structure among the correlation technique and cause the long, the far away problem of circle road landing point of public way bridge introduction, be unfavorable for the relation of both sides near-earth traffic.
The technical scheme adopted by the application is as follows:
a separation structure of a public rail and a bridge deck comprises:
a bridge body which is arranged in a downhill manner from the main bridge to the direction of the embankment;
the heightening beam is arranged on the bridge deck of the bridge body and is arranged along the longitudinal bridge direction, the railway track ballast bed is arranged on the heightening beam, and the height of the heightening beam is gradually increased from the main bridge to the embankment direction.
In some embodiments, the joists are arranged along the longitudinal bridge direction in a segmented mode, and structural seams are arranged between two adjacent sections of joists.
In some embodiments, the joists comprise at least one section of plate joists, the height of the plate joists varying along the length direction, and the plate joists have a rectangular cross section.
In some embodiments, the offset beam comprises at least one section of a pi-shaped bulkhead-less offset beam, the pi-shaped bulkhead-less offset beam is a pi-shaped double web beam and the web height varies along the length direction.
In some embodiments, the heightening beam comprises at least one section of pi-shaped imperforate partition heightening beam, the pi-shaped imperforate partition heightening beam comprises a pi-shaped double-web beam with a web height changing along the length direction, and imperforate transverse partitions are arranged at two ends of the pi-shaped imperforate partition heightening beam.
In some embodiments, the heightening beam comprises at least one section of a pi-shaped porous partition board heightening beam, the pi-shaped porous partition board heightening beam comprises a pi-shaped double-web plate beam with a web plate height changing along the length direction, and two ends of the pi-shaped porous partition board heightening beam are provided with perforated transverse partition boards.
In some embodiments, the cross-section of the web bottom of the pi-shaped dual-web beam is horseshoe-shaped.
In some embodiments, the joists are reinforced concrete structures and are cast-in-place.
In some embodiments, the structure is sewn at a steel beam connection node of the bridge body.
In some embodiments, the heightening beam is connected with the steel bridge deck of the bridge body through a shear key.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a public rail is with layer bridge floor isolating construction, and it can realize public rail is mound altogether and is separated in advance at the bridge section bridge floor of building together when arranging with the layer through the setting of bed hedgehopping roof beam, satisfies highway and orbital longitudinal slope requirement respectively, consequently, is favorable to shortening highway bridge approach length, makes the highway access near-ground traffic net faster, makes things convenient for the contact of the near-ground traffic of both sides.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of a common-rail same-layer bridge deck separation structure provided in an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken at B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view at C-C of FIG. 1;
fig. 5 is a schematic cross-sectional view at D-D in fig. 1.
In the figure: 1. a bridge body; 101. a steel cross beam; 102. a steel deck plate; 2. a track bed; 3. a joists; 4. a plate-type joists; 5. the pi-shaped spacer-free heightening beam; 6. the pi-shaped imperforate partition plate is used for padding the upper beam; 601. a nonporous diaphragm plate; 7. the Pi-shaped porous partition plate is used for supporting the high beam; 701. a transverse clapboard is provided with holes; 8. structural sewing; 9. and (7) shear key.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
The embodiment of the application provides a public rail is with layer bridge floor isolating construction, and it can solve present public rail isolating construction and can cause the bridge lead of highway to be long, and the ramp floor point is far away, is unfavorable for the problem of the relation of two bank near-earth traffic.
Referring to fig. 1 to 5, the common-layer deck separation structure for the common rail includes a bridge body 1 and an offset beam 3.
The bridge body 1 is arranged in a downhill manner from a main bridge to an embankment direction and consists of a plurality of steel cross beams 101 and a steel bridge deck 102 arranged on the upper surface of the steel cross beams 101, and the steel cross beams 101 are distributed along the longitudinal bridge direction; the bridge deck of the bridge body 1 is divided into a railway area and highway areas symmetrically arranged on two sides of the railway area along the transverse bridge direction.
The method comprises the following steps that railway track beds 2 are arranged in a railway area of a bridge along the longitudinal bridge direction, a plurality of track beds 2 can be arranged, two track beds are arranged in the embodiment, and the track beds can be increased or decreased according to the limitation of the width of the railway area or the strength of the bridge in other embodiments; when constructing a railway, sleepers and rails are constructed on the track bed 2.
The heightening beams 3 are arranged on the bridge deck of the bridge body 1 and are arranged along the longitudinal direction of the bridge, the track beds 2 are arranged on the heightening beams 3, the number of the heightening beams 3 is designed according to the number of the track beds 2, and in order to realize the separation of highways and railways in the bridge section in advance, the heightening beams 3 are arranged to gradually increase in height from the main bridge to the direction of the embankment, so that the separation of highways and railways can be realized and the longitudinal slope of the railways can be ensured to meet the requirements; and moreover, the arrangement of the heightening beam 3 also reserves the allowance for deviation rectification in the ballastless track construction.
Specifically, the heightening beams 3 are arranged in a sectional manner along the longitudinal bridge direction, and comprise plate-type heightening beams 4, pi-shaped non-partition heightening beams 5, pi-shaped non-porous partition heightening beams 6 and pi-shaped porous partition heightening beams 7 which are sequentially distributed from a main bridge to the embankment direction, a structural joint 8 is arranged between two adjacent sections of heightening beams 3, and the structural joint 8 is arranged at the connecting node of the adjacent steel cross beams 101. The sectional arrangement of the heightening beams 3 can reduce the construction difficulty, and the combined application of the four heightening beams 3 can effectively reduce the second-stage constant load of the track.
In the embodiment, the plate-type jockey beam 4, the pi-shaped non-partition jockey beam 5, the pi-shaped non-porous partition jockey beam 6 and the pi-shaped porous partition jockey beam 7 are respectively provided with two sections for description, and in other embodiments, the number of each section of jockey beam 3 can be increased or decreased according to the actual length of the bridge, so as to ensure that the highway and the railway can be separated.
The plate-type joists 4 are plate-shaped, the cross sections of the plate-type joists are rectangular, the heights of the plate-type joists vary along the length direction, and specifically, the plate-type joists 4 are arranged along the longitudinal bridge direction, and the heights of the plate-type joists gradually increase from the main bridge to the embankment direction.
The pi-shaped baffle-free heightening beam 5 is a pi-shaped double-web beam, the height of a web plate of the pi-shaped baffle-free heightening beam is changed along the length direction, and particularly, the pi-shaped baffle-free heightening beam 5 is arranged along the longitudinal bridge direction, and the height of the web plate of the pi-shaped baffle-free heightening beam is gradually increased from the main bridge to the embankment direction.
The pi-shaped imporous partition plate jockey beam 6 comprises a pi-shaped double-web beam and an imporous transverse partition plate 601, wherein the height of a web plate of the pi-shaped double-web beam is changed along the length direction, and specifically, the pi-shaped imporous partition plate jockey beam 6 is arranged along the longitudinal bridge direction, and the height of the web plate is gradually increased from the main bridge to the embankment direction; two imperforate diaphragm plates 601 are arranged, and the two imperforate diaphragm plates 601 are respectively arranged at two ends of the Pi-shaped double-web beam and fixed with the web.
The pi-shaped porous partition plate jockey beam 7 comprises a pi-shaped double-web beam and an open-pore transverse partition plate 701, wherein the height of a web plate of the pi-shaped double-web beam changes along the length direction, and specifically, the pi-shaped porous partition plate jockey beam 7 is arranged along the longitudinal bridge direction, and the height of the web plate of the pi-shaped porous partition plate jockey beam gradually increases from the main bridge to the embankment direction; two perforated transverse partition plates 701 are arranged, and the two perforated transverse partition plates 701 are respectively arranged at two ends of the Pi-shaped double-web plate beam and fixed with the web plate.
The beam height range of each section in the joists 3 needs to be designed according to actual conditions, so that the whole joists 3 are in a downhill state, the joists 3 in each section are in stable transition, and the longitudinal slope of the joists 3 is smaller than that of a road and meets the requirement of a railway longitudinal slope.
In the embodiment, the whole joists 3 are of reinforced concrete structures and are constructed by adopting a cast-in-place process; the heightening beam 3 is connected with the bridge body 1 through a shear key 9, and specifically, the heightening beam 3 is connected with the steel bridge deck 102 through the shear key 9; in order to improve the structural stability of the pi-shaped imperforate partition plate jowar 6 and the pi-shaped perforate partition plate jowar 7 in the jowar 3, the cross section of the bottom of the web plate is in a horseshoe shape, namely, the bottom of the web plate is thickened, so that the connecting area of the web plate and the steel bridge deck 102 can be increased, and the connecting strength is improved.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
It is noted that, in this application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element described by the phrase "comprising a." does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a public rail is with layer bridge floor separation structure which characterized in that includes:
a bridge body (1) which is arranged in a downhill manner from a main bridge to an embankment;
the heightening beam (3) is arranged on the bridge deck of the bridge body (1) and is arranged along the longitudinal bridge direction, the railway track bed (2) is arranged on the heightening beam (3), and the height of the heightening beam (3) is gradually increased from the main bridge to the direction of the embankment.
2. The common rail same layer bridge deck separation structure of claim 1, wherein: the joists (3) are arranged in a segmented mode along the longitudinal bridge direction, and a structural seam (8) is arranged between every two adjacent sections of joists (3).
3. The common rail same layer bridge deck separation structure of claim 2, wherein: the blocking-up beam (3) comprises at least one section of plate-type blocking-up beam (4), the height of the plate-type blocking-up beam (4) is changed along the length direction, and the plate-type blocking-up beam (4) is of a rectangular cross section.
4. The common rail same-layer bridge deck separation structure as claimed in claim 2, wherein: the heightening beam (3) comprises at least one section of pi-shaped clapboard-free heightening beam (5), the pi-shaped clapboard-free heightening beam (5) is a pi-shaped double-web beam, and the height of a web plate is changed along the length direction.
5. The common rail same layer bridge deck separation structure of claim 2, wherein: the heightening beam (3) comprises at least one section of a pi-shaped imperforate partition heightening beam (6), the pi-shaped imperforate partition heightening beam (6) comprises a pi-shaped double-web beam with a web height changing along the length direction, and imperforate transverse partition plates (601) are arranged at two ends of the pi-shaped imperforate partition heightening beam (6).
6. The common rail same layer bridge deck separation structure of claim 2, wherein: the heightening beam (3) comprises at least one section of Pi-shaped porous partition heightening beam (7), the Pi-shaped porous partition heightening beam (7) comprises a Pi-shaped double-web beam with the web height changing along the length direction, and two ends of the Pi-shaped porous partition heightening beam (7) are provided with perforated transverse partitions (701).
7. The common rail same layer bridge deck separation structure as claimed in claim 5 or 6, wherein: the section of the bottom of the web plate of the Pi-shaped double-web plate beam is in a horseshoe shape.
8. The common rail same layer bridge deck separation structure of claim 1, wherein: the heightening beam (3) is of a reinforced concrete structure and is formed by casting in place.
9. The common rail same-layer bridge deck separation structure as claimed in claim 2, wherein: the structural seam (8) is arranged at the joint of the steel beam (101) of the bridge body (1).
10. The common rail same layer bridge deck separation structure of claim 9, wherein: the heightening beam (3) is connected with the steel bridge deck (102) of the bridge body (1) through a shear key (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613401.9A CN114922053A (en) | 2022-05-31 | 2022-05-31 | Public rail is with layer bridge floor separation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613401.9A CN114922053A (en) | 2022-05-31 | 2022-05-31 | Public rail is with layer bridge floor separation structure |
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| Publication Number | Publication Date |
|---|---|
| CN114922053A true CN114922053A (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210613401.9A Pending CN114922053A (en) | 2022-05-31 | 2022-05-31 | Public rail is with layer bridge floor separation structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120022A (en) * | 1998-10-19 | 2000-04-25 | Ohbayashi Corp | Lower structure of viaduct |
| CN102535357A (en) * | 2012-02-21 | 2012-07-04 | 中南大学 | Method for strengthening double-T bridge composite structure for railway |
| CN106149539A (en) * | 2016-07-08 | 2016-11-23 | 中铁二院工程集团有限责任公司 | Highway-railway dual-purpose bridge staggered floor main beam section constructs |
| CN208009170U (en) * | 2018-01-12 | 2018-10-26 | 中国铁路设计集团有限公司 | Plate-type ballastless track on a kind of steel truss girder bridge |
| CN110029540A (en) * | 2019-03-26 | 2019-07-19 | 中铁磁浮交通投资建设有限公司 | A kind of high speed Maglev double line box girder and track structure |
| CN209243581U (en) * | 2018-11-01 | 2019-08-13 | 中铁大桥局集团有限公司 | A kind of stringer set up for And of Varying Depth steel girder segment |
| CN110438881A (en) * | 2019-08-20 | 2019-11-12 | 中铁二院工程集团有限责任公司 | The three branch mailbox mixing girders and four rope face combined highway and metro cable-stayed bridges worn in bridge tower |
-
2022
- 2022-05-31 CN CN202210613401.9A patent/CN114922053A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000120022A (en) * | 1998-10-19 | 2000-04-25 | Ohbayashi Corp | Lower structure of viaduct |
| CN102535357A (en) * | 2012-02-21 | 2012-07-04 | 中南大学 | Method for strengthening double-T bridge composite structure for railway |
| CN106149539A (en) * | 2016-07-08 | 2016-11-23 | 中铁二院工程集团有限责任公司 | Highway-railway dual-purpose bridge staggered floor main beam section constructs |
| CN208009170U (en) * | 2018-01-12 | 2018-10-26 | 中国铁路设计集团有限公司 | Plate-type ballastless track on a kind of steel truss girder bridge |
| CN209243581U (en) * | 2018-11-01 | 2019-08-13 | 中铁大桥局集团有限公司 | A kind of stringer set up for And of Varying Depth steel girder segment |
| CN110029540A (en) * | 2019-03-26 | 2019-07-19 | 中铁磁浮交通投资建设有限公司 | A kind of high speed Maglev double line box girder and track structure |
| CN110438881A (en) * | 2019-08-20 | 2019-11-12 | 中铁二院工程集团有限责任公司 | The three branch mailbox mixing girders and four rope face combined highway and metro cable-stayed bridges worn in bridge tower |
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