CN203603025U - Curve extra-dosed cable-stayed bridge for ballastless track railway - Google Patents
Curve extra-dosed cable-stayed bridge for ballastless track railway Download PDFInfo
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- CN203603025U CN203603025U CN201320751214.3U CN201320751214U CN203603025U CN 203603025 U CN203603025 U CN 203603025U CN 201320751214 U CN201320751214 U CN 201320751214U CN 203603025 U CN203603025 U CN 203603025U
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- main girder
- stayed bridge
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- 239000004567 concrete Substances 0.000 claims abstract description 37
- 239000000725 suspension Substances 0.000 claims description 15
- 238000004873 anchoring Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
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Abstract
The utility model discloses a curve extra-dosed cable-stayed bridge for a ballastless track railway. The curve extra-dosed cable-stayed bridge for the ballastless track railway comprises a concrete main girder, concrete pylons and stay cables. The concrete main girder and the concrete pylons are fixedly connected. The top of each concrete pylon is provided with a steering cable saddle. Each stay cable and the corresponding steering cable saddle are anchored through a crossed anti-skidding key and the other end of each stay cable is anchored to the concrete main girder. According to the curve extra-dosed cable-stayed bridge for the ballastless track railway, the concrete main girder and the concrete pylons are fixedly connected, a support is arranged below the main girder, and piers of the curve extra-dosed cable-stayed bridge is not high; the rigidity of the main girder is large, the stay cables are prestress wires, the rigidity of the stay cables is matched with that of the main girder, coordinating deformation is achieved, and the structural rigidity is improved; on the premise that the section bending resistant inertia moment is barely affected, the flange-free section is adopted, the section anti-torque capacity is greatly increased, and the torsion effect generated by a curved bridge is resisted; the requirement for cable replacement of the railway is high and the stay cables are anchored through the anti-skidding keys, so that construction is rapid and convenient, and influence on railway operation by cable replacement is reduced to the maximum degree.
Description
Technical field
The utility model relates to bridge construction technical field, is specially a kind of ballastless track railway curve low-pylon cable-stayed bridge.
Background technology
Although continuous girder bridge adopts prestressed concrete to build, can gather materials on the spot, industrialized construction, good endurance, applicability are strong, good integrity and attractive in appearance, this bridge type all develops to obtain comparative maturity in design theory and construction technology.But great due to structure itself, and larger its of the span shared ratio of conducting oneself with dignity more enlarges markedly, and greatly limited its span capability.
Low-pylon cable-stayed bridge is take beam stress as main, and Suo Shouli is auxiliary a kind of structural system, and structural performance is good, and general being suitable for should be between 100-300m across footpath, and has good economic indicator.
When span requires when being subject to, clear height requires and view requirement etc. limited, low-pylon cable-stayed bridge has very large advantage, and traditional low-pylon cable-stayed bridge is applied in highway bridge mostly, and take straight line bridge as main.Stiffness of Railway Bridges requires high, and traditional low-pylon cable-stayed bridge suspension cable is little to rigidity of structure contribution, and the rigidity of structure is difficult to meet the demands, and curve is large on bridge construction impact.Meanwhile, traditional low-pylon cable-stayed bridge adopts cable saddle to fill epoxy mortar and resists uneven Suo Li, changes rope difficulty large.
Utility model content
The purpose of this utility model is to provide a kind of ballastless track railway curve low-pylon cable-stayed bridge simple in structure in order to overcome above-mentioned deficiency.
The utility model comprises concrete girder, concrete king-post and suspension cable, described concrete girder and concrete king-post are fixed, described concrete towers column top is provided with steering cable saddle, described suspension cable pass through to intersect antiskid key and steering cable saddle anchoring, the other end of described suspension cable and concrete girder anchoring.
Between described concrete king-post, be provided with crossbeam.
The cross section of described concrete girder is the box section without the edge of a wing.
The utility model girder and king-post are fixed, under girder, bearing are set, and are applicable to the low-pylon cable-stayed bridge of pier Gao Bugao; Girder self rigidity is large, and suspension cable adopts prestress wire, suspension cable and girder Rigidity Matching, and compatible deformation, has improved the rigidity of structure; Affect under little prerequisite in pair cross-section bending resistance moment of inertia, adopt without cross section, the edge of a wing, increased greatly cross section anti-twisting property, resist the torsional effect that curved bridge produces; Railway exchange is asked for and is asked high, adopts the anchoring of antiskid key, constructs quick and convenient, farthest reduces and changes the impact of rope on railway operation.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is that the A-A of Fig. 1 is to view.
Fig. 3 is suspension cable structure structural representation.
The specific embodiment
Further illustrate the utility model below in conjunction with drawings and Examples.
Embodiment: the utility model comprises concrete girder 1, concrete king-post 2 and suspension cable 3, described concrete girder 1 and concrete king-post 2 are fixed, described concrete king-post 2 tops are provided with steering cable saddle 4, described suspension cable 3 is by intersecting antiskid key 5 and steering cable saddle 4 anchorings, the other end of described suspension cable 3 and concrete girder 1 anchoring.Between described concrete king-post 2, be provided with crossbeam 6, the cross section of described concrete girder 1 is the box section without the edge of a wing.
In a word, this apparatus structure reasonable stress, integral rigidity is large, changes rope convenient, and economic indicator is good, and landscape effect is good, has good society and economic benefit.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (3)
1. a ballastless track railway curve low-pylon cable-stayed bridge, comprise concrete girder (1), concrete king-post (2) and suspension cable (3), described concrete girder (1) and concrete king-post (2) are fixed, described concrete king-post (2) top is provided with steering cable saddle (4), it is characterized in that: described suspension cable (3) pass through intersect antiskid key (5) with steering cable saddle (4) anchoring, the other end of described suspension cable (3) and concrete girder (1) anchoring.
2. ballastless track railway curve low-pylon cable-stayed bridge according to claim 1, is characterized in that being provided with between described concrete king-post (2) crossbeam (6).
3. ballastless track railway curve low-pylon cable-stayed bridge according to claim 1 and 2, the cross section that it is characterized in that described concrete girder (1) is the box section without the edge of a wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751214.3U CN203603025U (en) | 2013-11-25 | 2013-11-25 | Curve extra-dosed cable-stayed bridge for ballastless track railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751214.3U CN203603025U (en) | 2013-11-25 | 2013-11-25 | Curve extra-dosed cable-stayed bridge for ballastless track railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603025U true CN203603025U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320751214.3U Expired - Lifetime CN203603025U (en) | 2013-11-25 | 2013-11-25 | Curve extra-dosed cable-stayed bridge for ballastless track railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603025U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099874A (en) * | 2014-07-28 | 2014-10-15 | 上海市城市建设设计研究总院 | Steel strand inhaul cable tension construction method by taking slip-resistant stud as locking device |
| CN104264576A (en) * | 2014-10-21 | 2015-01-07 | 天津市市政工程设计研究院 | Equal-beam-depth short tower self-anchored suspension cable and cable-stayed cooperation system bridge |
| CN104532733A (en) * | 2014-12-23 | 2015-04-22 | 上海市城市建设设计研究总院 | Partial cable-stayed bridge of fish bone beam structure |
| CN104594195A (en) * | 2014-10-14 | 2015-05-06 | 交通运输部公路科学研究所 | Multi-layer combined sliding cable saddle |
-
2013
- 2013-11-25 CN CN201320751214.3U patent/CN203603025U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099874A (en) * | 2014-07-28 | 2014-10-15 | 上海市城市建设设计研究总院 | Steel strand inhaul cable tension construction method by taking slip-resistant stud as locking device |
| CN104099874B (en) * | 2014-07-28 | 2016-03-23 | 上海市城市建设设计研究总院 | Using antiskid key as the stretch-draw construction method of the guy of twisted steel cable of locking device |
| CN104594195A (en) * | 2014-10-14 | 2015-05-06 | 交通运输部公路科学研究所 | Multi-layer combined sliding cable saddle |
| CN104264576A (en) * | 2014-10-21 | 2015-01-07 | 天津市市政工程设计研究院 | Equal-beam-depth short tower self-anchored suspension cable and cable-stayed cooperation system bridge |
| CN104264576B (en) * | 2014-10-21 | 2016-06-01 | 天津市市政工程设计研究院 | The short tower self-anchored type suspension cable oblique pull co-operative system bridge of the deck-molding such as a kind of |
| CN104532733A (en) * | 2014-12-23 | 2015-04-22 | 上海市城市建设设计研究总院 | Partial cable-stayed bridge of fish bone beam structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |