CN206800162U - A kind of track traffic uprises continuous U beams - Google Patents
A kind of track traffic uprises continuous U beams Download PDFInfo
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- CN206800162U CN206800162U CN201720514732.1U CN201720514732U CN206800162U CN 206800162 U CN206800162 U CN 206800162U CN 201720514732 U CN201720514732 U CN 201720514732U CN 206800162 U CN206800162 U CN 206800162U
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- bottom plate
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- beams
- track traffic
- uprises
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Abstract
It the utility model is related to a kind of track traffic and uprise continuous U beams.To make full bridge structure stress more reasonable, steel beam utilization rate improve, it is necessary at a kind of new fulcrum cross-sectional configuration continuous U girder constructions.The utility model includes uiform section thickness and bottom plate in wave shape, and bottom plate top both sides and center set the web of longitudinal direction；It is central bearing point at bottom plate trough, pouring concrete section after being set above the bottom plate in the range of the 30m of central bearing point both sides.Compared to traditional continuous U section forms of beam, the utility model stress is more reasonable, longitudinal steel beam effective rate of utilization lifting, using new type of continuous U section forms of beam, can meet that spanning has necessary rigidity, more be saved in terms of economic technology.
Description
Technical field
The utility model belongs to bridge structure technical field of buildings, and in particular to a kind of track traffic uprises continuous U beams.
Background technology
Prestressed concrete U beams are a kind of bottom-road bridge girder construction forms, and bottom plate is as carriageway plate, girder web plate conduct
Main bearing member, compared with car for deck bridge, the height from bridge floor to beam bottom can be substantially reduced, when under-clearance by limited time,
The elevation of structure circuit can be effectively reduced.With the increase of span, continuous U beams are to ensure that beam body has certain rigidity, Ying Jia
Heavy in section size or the ratio of reinforcement, to ensure that beam body has certain rigidity and elastic carrying capacity.Due to evacuation platform and other are attached
The limitation of structure, deck-molding in a disguised form can only increase downwards, by suitably increasing base plate thickness to improve structure tension performance.
For traditional continuous U beams, due to the limitation of evacuation platform and other accessory structures, the routine of depth of section is adjusted
Way is：On the premise of keeping web height constant, increase base plate thickness downwards, while reduce bottom plate transverse width, so as to change
Kind structure tension performance.
If simply increasing base plate thickness, beam section increase at fulcrum certainly will be caused and structural type moves in the heart, substantially reduced
Section stress at fulcrum.In order to there is sufficient stress deposit, it is necessary to increase the quantity of roof and floor steel beam.Ultimately cause full-bridge steel
Beam dosage increases, and strength assurance coefficient is higher, and full-bridge construction costs is also higher.Therefore, in order that full bridge structure stress is more closed
Reason, steel beam utilization rate are improved, it is necessary to study the continuous U girder constructions of cross-sectional configuration at new fulcrum a kind of to solve the problem.
The content of the invention
The purpose of this utility model is to provide a kind of track traffic and uprises continuous U beams, takes uniform thickness bottom plate section form U
Girder construction, fulcrum area of section is effectively reduced, improve full-bridge longitudinal normal stress and vertical deformation, optimize conventional section form.
Technical scheme is used by the utility model：
A kind of track traffic uprises continuous U beams, it is characterised in that：
Including uiform section thickness and bottom plate in wave shape, both sides and center set the web of longitudinal direction above bottom plate；
It is central bearing point at bottom plate trough, pouring concrete section after being set above the bottom plate in the range of the 30m of central bearing point both sides.
Pouring concrete section top surface is horizontal afterwards and is flushed with bottom plate crest.
Pouring concrete section, which is longitudinally continuous, afterwards sets multiple tracks after-pouring concrete segment transverse direction breaking joint.
The web of bottom plate top center is vertical；
The oblique outside in web lower end of both sides, upper end are vertical above bottom plate.
The utility model has advantages below：
Compared to traditional continuous U section forms of beam, the utility model stress is more reasonable, and longitudinal steel beam effective rate of utilization carries
Rise.Using new type of continuous U section forms of beam, it can meet that spanning has necessary rigidity, more be saved in terms of economic technology.
Brief description of the drawings
The continuous U beams elevation of Fig. 1.
Beam body cross section at Fig. 2 span centres.
Beam body cross section at Fig. 3 central bearing points.
In figure, 1, bottom plate, 2, rear pouring concrete section, 3, web, 4, after-pouring concrete segment transverse direction breaking joint.
Embodiment
The utility model is described in detail with reference to embodiment.
A kind of track traffic that the utility model is related to uprises continuous U beams, and girder construction outer contour is protected with conventional design
Hold unanimously, continuous U beam sections base plate thickness keeps constant, and Bottom Board Steel beam erects bent line and is consistent with board structure line style.
Pouring concrete section after being set in the range of the 30m of central bearing point both sides, longitudinally disposed breaking joint.
Concrete structure includes uiform section thickness and bottom plate 1 in wave shape, and the top both sides of bottom plate 1 and center set the abdomen of longitudinal direction
Plate 3.The web 3 of the top center of bottom plate 1 is vertical；The oblique outside in the lower end of web 3 of the top both sides of bottom plate 1, upper end are vertical.Bottom plate 1
It is central bearing point at trough, pouring concrete section 2 after the top of bottom plate 1 in the range of the 30m of central bearing point both sides is set.Pouring concrete section 2 afterwards
Top surface is horizontal and is flushed with the crest of bottom plate 1.Pouring concrete section 2, which is longitudinally continuous, afterwards sets multiple tracks after-pouring concrete segment transverse direction breaking joint
4。
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (4)
1. a kind of track traffic uprises continuous U beams, it is characterised in that：
Including uiform section thickness and bottom plate in wave shape（1）, bottom plate（1）Top both sides and center set the web of longitudinal direction（3）；
Bottom plate（1）It is central bearing point at trough, the bottom plate in the range of the 30m of central bearing point both sides（1）Pouring concrete section after top is set
（2）.
2. a kind of track traffic according to claim 1 uprises continuous U beams, it is characterised in that：
Pouring concrete section afterwards（2）Top surface level and and bottom plate（1）Crest flushes.
3. a kind of track traffic according to claim 1 uprises continuous U beams, it is characterised in that：
Pouring concrete section afterwards（2）It is longitudinally continuous and multiple tracks after-pouring concrete segment transverse direction breaking joint is set（4）.
4. a kind of track traffic according to claim 1 uprises continuous U beams, it is characterised in that：
Bottom plate（1）The web of top center（3）Vertically；
Bottom plate（1）The web of top both sides（3）The oblique outside in lower end, upper end are vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720514732.1U CN206800162U (en) | 2017-05-10 | 2017-05-10 | A kind of track traffic uprises continuous U beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720514732.1U CN206800162U (en) | 2017-05-10 | 2017-05-10 | A kind of track traffic uprises continuous U beams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206800162U true CN206800162U (en) | 2017-12-26 |
Family
ID=60739874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720514732.1U Active CN206800162U (en) | 2017-05-10 | 2017-05-10 | A kind of track traffic uprises continuous U beams |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206800162U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012777A (en) * | 2017-05-10 | 2017-08-04 | 中铁第勘察设计院集团有限公司 | Track traffic uprises continuous U beams |
| CN110258353A (en) * | 2019-07-31 | 2019-09-20 | 河南省交通规划设计研究院股份有限公司 | And of Varying Depth steel-concrete composite beams bridge construction technique with support |
-
2017
- 2017-05-10 CN CN201720514732.1U patent/CN206800162U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012777A (en) * | 2017-05-10 | 2017-08-04 | 中铁第勘察设计院集团有限公司 | Track traffic uprises continuous U beams |
| CN110258353A (en) * | 2019-07-31 | 2019-09-20 | 河南省交通规划设计研究院股份有限公司 | And of Varying Depth steel-concrete composite beams bridge construction technique with support |
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