CN204919301U - Cable stayed bridge with single cable plane's girder - Google Patents
Cable stayed bridge with single cable plane's girder Download PDFInfo
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- CN204919301U CN204919301U CN201520237584.4U CN201520237584U CN204919301U CN 204919301 U CN204919301 U CN 204919301U CN 201520237584 U CN201520237584 U CN 201520237584U CN 204919301 U CN204919301 U CN 204919301U
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Abstract
The utility model relates to a bridge field, concretely relates to cable stayed bridge with single cable plane's girder mainly is applied to the construction of indisputable road bridge roof beam, and it includes: roof, bottom plate, " W " shape web and suspension cable, wherein, " W " shape web is in between roof and the bottom plate to respectively with roof, bottom plate fixed connection, the bottom fixed connection of suspension cable is on vertical axis of roof, " W " shape web includes two endosternums and two outer webs, and the crossing and fixed connection of two endosternums are on vertical axis, and the point of intersect of two outer webs and roof uses vertical axis as the mutual symmetry of symmetry axis, adjacent outer web and endosternum intersect in the bottom plate. The utility model discloses saved the cross slab structure in traditional case roof beam, therefore engineering quantity that can greatly reduced roof beam portion.
Description
Technical field
The utility model relates to bridge field, is specifically related to the girder of single plane cable stayed bridge, is applied to the construction of railroad bridge.
Background technology
Single plane cable stayed bridge is a kind of common bridge pattern, this bridge is typically provided with bridge tower, girder is positioned between bridge tower and bridge pier, suspension cable is established between bridge tower and girder, these drag-lines are all positioned on the vertical guide at bridge center line place of single cable stayed-cable bridge, brief attractive in appearance, the broad view of such Bridges, is thus widely used by engineering circles.
According to the data collected, railway bridge existing both at home and abroad does not still adopt the precedent of concrete single plane cable stayed bridge form of structure at present.The many employings of girder section form single case three cell structure of conventional single plane cable stayed bridge, median ventral plate is straight web, arranges diaphragm at suspension cable anchorage point.This cross section structure form good integrity, but owing to arranging closeer diaphragm, cause main beam concrete large usage quantity, economy is poor.If when bridge is positioned at highlight lines earthquake region, the quality of superstructure is directly connected to the response of overall structure under earthquake, thus cause design of substructure difficulty or the scale of construction huge, cause the wasting of resources and affect Bridge Landscape; And the internal mold of bridge of this form of structure is complicated, also bring certain difficulty to construction.
Utility model content
Embodiment of the present utility model provides a kind of girder of single plane cable stayed bridge, can improve the girder section force-bearing situation of single plane cable stayed bridge, reduces main beam concrete consumption.
A kind of girder of single plane cable stayed bridge is provided according to an aspect of the present utility model, comprises: top board, base plate, " W " shape web and suspension cable; Wherein, described " W " shape web is between described top board and base plate, and respectively with described top board, described base plate anchor connection; The bottom of described suspension cable is fixedly connected on the longitudinal central axis line of described top board;
Described " W " shape web comprises two endosternums and two outer webs, and two described endosternums intersect and are fixedly connected on described longitudinal central axis line, the intersection point of two described outer webs and described top board with described longitudinal central axis line for axis of symmetry is symmetrical; Adjacent described outer web and described endosternum intersect at described base plate.
In certain embodiments, be preferably, the bottom of described suspension cable is anchored in described top board.
In certain embodiments, be preferably, two described endosternums are symmetrical with the middle vertical plane of described top board.
In certain embodiments, be preferably, two described outer webs are symmetrical with the middle vertical plane of described top board.
In certain embodiments, be preferably, each branch of described " W " shape web and the angle of described top board are between 40 °-60 °.
The girder of the single plane cable stayed bridge provided by embodiment of the present utility model, compared with prior art, adopt " W " shape web, substantially a girder system is formed, the bottom of suspension cable is fixedly connected on the longitudinal central axis line of top board, and its mode of transfer force is: middle two endosternum tensions, the outer web plate and back plate pressurized in outside two, the loading characteristic of the girder of single plane cable stayed bridge is more met on stressed, stressed succinct clear and definite.Adopt " W " shape web eliminates diaphragm structure in conventional boxes beam, thus greatly can reduce the engineering quantity in beam portion.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, discuss to the accompanying drawing used required in embodiment or description of the prior art below, obviously, only embodiments more of the present utility model in the technical scheme be described by reference to the accompanying drawings, for those of ordinary skills, under the prerequisite not paying creative work, other embodiment and accompanying drawing thereof can also be obtained according to these accompanying drawing illustrated embodiments.
Fig. 1 is the transverse sectional view of the girder of single plane cable stayed bridge in the utility model embodiment;
Fig. 2 is the stressed schematic diagram of Fig. 1 in the utility model embodiment.
Detailed description of the invention
Carry out clear complete description below with reference to the technical scheme of accompanying drawing to each embodiment of the utility model, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment described in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not needing creative work, all in the scope that the utility model is protected.
Consider and the problem that the girder middle girder concrete amount of single plane cable stayed bridge is large present embodiments provide a kind of girder of single plane cable stayed bridge.
The girder of single plane cable stayed bridge, comprising: top board, base plate, " W " shape web and suspension cable; Wherein, " W " shape web is between top board and base plate, and respectively with top board, base plate anchor connection; The bottom of suspension cable is fixedly connected on the longitudinal central axis line of top board; " W " shape web comprises two endosternums and two outer webs, and two endosternums intersect and are fixedly connected on longitudinal central axis line, the intersection point of two outer webs and top board with longitudinal central axis line for axis of symmetry is symmetrical; Adjacent outer web and endosternum intersect at base plate.
Compared with the main beam structure form of existing conventional single plane cable stayed bridge, adopt " W " shape web, substantially a girder system is formed, the bottom of suspension cable is fixedly connected on the longitudinal central axis line of top board, its mode of transfer force is: middle two endosternum tensions, outside two outer web plate and back plate pressurizeds, more meet the loading characteristic of the girder of single plane cable stayed bridge on stressed, stressed succinct clear and definite.Eliminate the diaphragm structure in conventional boxes beam, thus greatly can reduce the engineering quantity in beam portion.
Next, be described in detail to the girder of single plane cable stayed bridge:
A girder for single plane cable stayed bridge, as shown in Figure 1, comprising: top board 2, base plate 5, " W " shape web and suspension cable 1; Wherein, " W " shape web is between top board 2 and base plate 5, and is fixedly connected with top board 2, base plate 5 respectively; The bottom of suspension cable 1 is fixedly connected on the longitudinal central axis line of top board 2, " W " shape web comprises two endosternums 3 and two outer webs 4, two endosternums 3 intersect and are fixedly connected on longitudinal central axis line, the intersection point of two outer webs 4 and top board 2 with longitudinal central axis line for axis of symmetry is symmetrical; Adjacent outer web 4 and endosternum 3 intersect at base plate 5.Suspension cable 1 is fixedly connected on top board 2 longitudinal central axis line, and " W " shape web forms a girder system, and total is stressed more balanced, as Fig. 2. shown in, middle endosternum 3 and top board 2 under tension, outer web 4 and the base plate 5 in outside are stressed.
The bottom of suspension cable 1 is anchored in top board 2, and fixed point intersects part in two endosternums 3.Suspension cable 1 bestows pulling force, when based on endosternum 3, outer web 4 along top board 2 middle vertical plane symmetry, and overall stress equalization.
Adopt " W " shape web, in order to improve the stress equalization of " W " shape web, two endosternums 3 are subject to rightabout pulling force, two endosternums 3 are symmetrical with the middle vertical plane of top board 2, the size of two pulling force is identical, direction contrary, and stressed more stable, structure is simple.
Adopt " W " shape web, in order to improve the stress equalization of " W " shape web, two outer webs 4 receive rightabout pulling force, two outer webs 4 are symmetrical with the middle vertical plane of top board 2, the size of two pulling force is identical, direction contrary, and stressed more stable, structure is simple.
In order to improve stressed effect, inventor carefully studies " W " shape web, top board, base plate forming position relation, when determining that two endosternums of " W " shape web and the angle of two outer webs and top board are between 40 °-60 °, better can distribute stressed, reach more balanced effect.
The various embodiments that the utility model provides can combine as required in any way mutually, the technical scheme obtained by this combination, also in scope of the present utility model.
Obviously, when not departing from spirit and scope of the present utility model, those skilled in the art can carry out various change and modification to the utility model.If to change of the present utility model these and modification is within the scope of claim of the present utility model and equivalent thereof, then the utility model also will comprise these and change and modification.
Claims (4)
1. a girder for single plane cable stayed bridge, is characterized in that, comprising: top board, base plate, " W " shape web and suspension cable; Wherein, described " W " shape web is between described top board and base plate, and respectively with described top board, described base plate anchor connection; The bottom of described suspension cable is fixedly connected on the longitudinal central axis line of described top board;
Described " W " shape web comprises two endosternums and two outer webs, and two described endosternums intersect and are fixedly connected on described longitudinal central axis line, the intersection point of two described outer webs and described top board with described longitudinal central axis line for axis of symmetry is symmetrical; Adjacent described outer web and described endosternum intersect at described base plate;
Two endosternums of described " W " shape web and the angle of two outer webs and described top board are between 40 °-60 °.
2. the girder of single plane cable stayed bridge as claimed in claim 1, it is characterized in that, the bottom of described suspension cable is anchored in described top board.
3. the girder of single plane cable stayed bridge as claimed in claim 1, it is characterized in that, two described endosternums are symmetrical with the middle vertical plane of described top board.
4. the girder of single plane cable stayed bridge as claimed in claim 1, it is characterized in that, two described outer webs are symmetrical with the middle vertical plane of described top board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237584.4U CN204919301U (en) | 2015-04-20 | 2015-04-20 | Cable stayed bridge with single cable plane's girder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237584.4U CN204919301U (en) | 2015-04-20 | 2015-04-20 | Cable stayed bridge with single cable plane's girder |
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| CN204919301U true CN204919301U (en) | 2015-12-30 |
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| CN201520237584.4U Active CN204919301U (en) | 2015-04-20 | 2015-04-20 | Cable stayed bridge with single cable plane's girder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049279A (en) * | 2016-07-27 | 2016-10-26 | 上海市城市建设设计研究总院 | Cable anchor structure in steel box girder |
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2015
- 2015-04-20 CN CN201520237584.4U patent/CN204919301U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049279A (en) * | 2016-07-27 | 2016-10-26 | 上海市城市建设设计研究总院 | Cable anchor structure in steel box girder |
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| GR01 | Patent grant |