CN205775789U - Reduce the dual deck bridge structure of whole height - Google Patents
Reduce the dual deck bridge structure of whole height Download PDFInfo
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- CN205775789U CN205775789U CN201620457750.6U CN201620457750U CN205775789U CN 205775789 U CN205775789 U CN 205775789U CN 201620457750 U CN201620457750 U CN 201620457750U CN 205775789 U CN205775789 U CN 205775789U
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Abstract
The utility model discloses a kind of dual deck bridge structure reducing whole height, including shared pier stud, railway beam portion, upper strata and railway beam portion of lower floor, share pier stud to be made up of bottom solid pier and top twin shaft pier, the upper strata railway longeron in railway beam portion, upper strata is located on the top twin shaft pier of shared pier stud by outwards arranging support body frame in the both sides of same level, and supporter is lateral widening the prestressed reinforced concrete construction of stretch-draw transversely prestressed bars.Dual deck bridge structure of the present utility model can dissolve the governing factor that clear height is limited, plane control condition can be met again, the force request of structure under levels railway loading effect can also be met simultaneously, the convenient maturation of construction technology, and significantly reduce the building height of structure, shorten bridge length, reduce construction scale, there is obvious economic benefit, meet the requirement of railway low-angle Grade Separation Project under plane, facade space multiple factors restriction condition.
Description
Technical field
This utility model relates to the dual deck bridge in traffic engineering, a kind of reduces the double of whole height
Layer bridge structure.
Background technology
Along with the fast development of railway construction in China, road network is more and more intensive, low-angle railway crossings on different level
It is difficult to avoid that.Especially near rail yard and hinge, the plane of circuit, facade are by existing railway, car
Plane, the controls of facade many condition such as station location, river course, urban road and building, used door in the past
The structures such as formula pier, frame bridge, Longspan Bridge cannot meet a lot of newly built railway low-angle Grade Separation Project
Needs.Such as the investment that the technical difficulty of long-span bridge girder construction is big and to be increased is huge；Framework
Bridge be unsatisfactory for bridge get down the highway, the leap requirement in river course；As it is shown in figure 1, the crossbeam of transom pier is plus on it
The beam structure in portion is high, adds monolithic architecture height, makes bridge construction scale increase, even at absolute altitude
Being unsatisfactory for lower floor's railway clearance requirement under confined condition, directly resulting in Decision Making of Line Schemes is false.
As can be seen here, in order to meet the railway low-angle under plane, facade space multiple factors restriction condition
The requirement of Grade Separation Project, designs a kind of new bridge structure form, at investment reduction, reduces technology as far as possible
Difficulty, do not increase difficulty of construction on the premise of, reduce monolithic architecture height, meet the headroom of lower floor's railway
Require and bridge is got down the highway, the leap requirement in river course, make Decision Making of Line Schemes feasible, and can meet up and down simultaneously
The force request of structure under layer railway loading effect, is the key technology being badly in need of at present solving.
Summary of the invention
For solving above-mentioned technical problem, this utility model is achieved through the following technical solutions:
A kind of dual deck bridge structure reducing whole height, including shared pier stud, railway beam portion, upper strata and under
Layer railway beam portion, its difference is, described shared pier stud is by bottom solid pier and top twin shaft pier
The integral structure of composition, described top twin shaft pier is positioned at above the both sides of bottom solid pier, described upper strata
Railway beam portion includes that upper strata railway longeron and railway longeron both sides, upper strata are outwardly directed in same level
Supporter, described supporter is respectively arranged at the upper surface of top twin shaft pier, described lower floor railway beam portion water
The upper surface of the bottom solid pier that tiling is located between the twin shaft pier of top.
In technique scheme, also set between twin shaft pier upper surface, described top and the bottom surface of supporter
It is equipped with bearing.
In technique scheme, described upper strata railway longeron be cross section be the box beam structure of dovetail type,
The outwardly directed supporter of described upper strata railway longeron and both sides is that square crossing is arranged and disposable entirety is watered
The prestressed reinforced concrete construction built.
In technique scheme, railway beam portion of described lower floor is non-perpendicular arranged in a crossed manner in bottom solid pier
Upper surface.
In technique scheme, described supporter is the prestressed reinforced concrete construction of lateral widening.
The beneficial effects of the utility model:
(1) the upper strata railway longeron of the dual deck bridge structure designed by this utility model is by same level
The both sides in face outwards arrange supporter, are erected on the top twin shaft pier of shared pier stud, thus eliminate one
The horizontal depth of beam of individual about 3m, has dissolved the governing factor that clear height is limited；The shared pier of bridge structure
Post is the integral structure being made up of bottom solid pier and top twin shaft pier, makes upper and lower two spanning degree coordinate one
Cause meets leap requirement under bridge, meets plane control condition, and lower floor's bridge can directly utilize under upper layer bridge
Side's space, can meet the force request of structure under levels railway loading effect simultaneously.Above-mentioned support
The combination of body and shared pier stud solves two line bridge low-angles under plane, clear height confined condition dexterously and hands over
Fork problem, the Decision Making of Line Schemes making whole bridge group lead a global launch is set up.
(2) the dual deck bridge structure stress approach designed by this utility model is clearly reliable, construction technology side
Become ripe, and significantly reduce the building height of structure, shorten bridge length, reduce construction scale, tool
There is obvious economic benefit.
Accompanying drawing explanation
Fig. 1 is the transom pier dual deck bridge elevational schematic view of prior art；
Fig. 2 is the dual deck bridge structural facades schematic diagram of reduction whole height of the present utility model；
Fig. 3 is the vertical view of the dual deck bridge structure bottom railway deck of reduction whole height of the present utility model
Figure；
Fig. 4 is the design sketch of the dual deck bridge structure of reduction whole height of the present utility model；
In figure: share pier stud 1 (bottom solid pier 11 and top twin shaft pier 12), railway beam portion, upper strata 2
(upper strata railway longeron 21 and supporter 22), railway beam portion of lower floor 3, bearing 4.
Detailed description of the invention
In order to be better understood from the technical solution of the utility model, below in conjunction with the accompanying drawings with specific embodiment pair
This utility model is described in further detail.
As in figure 2 it is shown, a kind of dual deck bridge structure reducing whole height, including shared pier stud 1, upper strata
Railway beam portion 2 and railway beam portion of lower floor 3, sharing pier stud 1 is by bottom solid pier 11 and top twin shaft pier
The integral structure of 12 compositions, top twin shaft pier 12 is positioned at above the both sides of bottom solid pier 11, such as figure
Shown in 3 and Fig. 4, railway beam portion of lower floor 3 is horizontally disposed with at bottom solid pier 11 upper surface, and lower floor's ferrum
Axis, beam portion 3, road is non-perpendicular with the axis of bottom solid pier 11 to intersect, top twin shaft pier 12 upper end
Face is respectively arranged with bearing 4；Railway beam portion, upper strata 2 includes upper strata railway longeron 21 and upper strata railway longeron
21 both sides are outwardly directed supporter 22 in same level, and supporter 22 is lateral widening stretch-draw
The prestressed reinforced concrete construction of transversely prestressed bars, supporter 22 is arranged at top twin shaft pier by bearing 5
The upper surface of 12, upper strata railway longeron 21 is arranged on above top twin shaft pier 12 by supporter 22.
Shared pier stud 1 is for be made up of bottom solid pier 11 and top twin shaft pier 12, and top twin shaft pier 12 is main
Being used for supporting supporter 22, its height is determined by deck-molding and the clear height of lower floor's railway, and sectional dimension is removed
Outside will be by checking computations shaft cross section, also should meet the detailing requiments such as bearing 5 placement of supporter 22；With
Sample, the sectional dimension of bottom solid pier 11 except intensity to be met, rigidity requirement in addition to, be also satisfied structure
Make requirement, as it is shown on figure 3, bottom solid pier 11 requires to have carried out local widening because of the placement of pinner.?
The lateral length of support body 22 is determined by the clear span of lower floor's railway, and bearing 5 is arranged on top twin shaft pier 12 and pushes up
On.
Mentality of designing of the present utility model is: the upper strata railway longeron 21 of dual deck bridge structure is by same
The both sides of horizontal plane outwards arrange supporter 22 and are erected on the top twin shaft pier of shared pier stud, eliminate 3m
The building height of left and right, efficiently solves the difficult problem that clear height is limited, and supporter 22 is tied for prestressed concrete
Structure, the power that upper strata railway longeron 21 transmits is transferred to share on the top twin shaft pier 12 of pier stud 1 by it；
In the plane, the beam portion span arrangement of upper and lower two bridges is adjusted by " sharing a bridge pier ", shares one
After individual bridge pier, lower floor railway can be allowed to utilize the space of " leaving unused " to pass through, it is to avoid upper and lower layer
Railway uses bigger bridge span, decreases construction investment.
The content that this specification is not described in detail belongs to existing skill known to professional and technical personnel in the field
Art.Although above-described embodiment is made that detailed description to this utility model, but it to be only this practicality new
The a part of embodiment of type rather than all embodiment, people can also be according to the present embodiment without creation
Obtaining other embodiments under property premise, these embodiments broadly fall into this utility model protection domain.
Claims (5)
1. reduce a dual deck bridge structure for whole height, including shared pier stud (1), upper strata railway
Beam portion (2) and lower floor railway beam portion (3), it is characterised in that: described shared pier stud (1) is by bottom
The integral structure that solid pier (11) and top twin shaft pier (12) form, described top twin shaft pier (12)
Being positioned at above the both sides of bottom solid pier (11), railway beam portion, described upper strata (2) includes that upper strata railway is indulged
Beam (21) and railway longeron (21) both sides, upper strata outwardly directed supporter (22) in same level,
Described supporter (22) is respectively arranged at the upper surface of top twin shaft pier (12), described lower floor railway beam
The upper surface of the bottom solid pier (11) that portion (3) level is layed between top twin shaft pier (12).
The dual deck bridge structure of reduction whole height the most according to claim 1, it is characterised in that:
It is additionally provided with bearing (4) between twin shaft pier (12) upper surface, described top and the bottom surface of supporter (22).
The dual deck bridge structure of reduction whole height the most according to claim 1, it is characterised in that:
Described upper strata railway longeron (21) be cross section be the box beam structure of dovetail type, described upper strata railway indulge
Beam (21) and both sides outwardly directed supporter (22) are that square crossing is arranged and disposable one-piece casting
Prestressed reinforced concrete construction.
The dual deck bridge structure of reduction whole height the most according to claim 1, it is characterised in that:
Described lower floor railway beam portion (3) is non-perpendicular arranged in a crossed manner in the upper surface of bottom solid pier (11).
5., according to the dual deck bridge structure reducing whole height described in any one of claim 1-4, it is special
Levy and be: described supporter (22) is the prestressed reinforced concrete construction of lateral widening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620457750.6U CN205775789U (en) | 2016-05-19 | 2016-05-19 | Reduce the dual deck bridge structure of whole height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620457750.6U CN205775789U (en) | 2016-05-19 | 2016-05-19 | Reduce the dual deck bridge structure of whole height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205775789U true CN205775789U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620457750.6U Active CN205775789U (en) | 2016-05-19 | 2016-05-19 | Reduce the dual deck bridge structure of whole height |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803918A (en) * | 2016-05-19 | 2016-07-27 | 中铁第四勘察设计院集团有限公司 | Double-layer bridge structure capable of lowering integral height |
| CN112853911A (en) * | 2019-11-28 | 2021-05-28 | 比亚迪股份有限公司 | Double-layer structure bridge |
-
2016
- 2016-05-19 CN CN201620457750.6U patent/CN205775789U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803918A (en) * | 2016-05-19 | 2016-07-27 | 中铁第四勘察设计院集团有限公司 | Double-layer bridge structure capable of lowering integral height |
| CN112853911A (en) * | 2019-11-28 | 2021-05-28 | 比亚迪股份有限公司 | Double-layer structure bridge |
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