CN203393598U - Double-deck bridge deck cable-stayed bridge - Google Patents
Double-deck bridge deck cable-stayed bridge Download PDFInfo
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- CN203393598U CN203393598U CN201320428526.0U CN201320428526U CN203393598U CN 203393598 U CN203393598 U CN 203393598U CN 201320428526 U CN201320428526 U CN 201320428526U CN 203393598 U CN203393598 U CN 203393598U
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Abstract
The utility model discloses a double-deck bridge deck cable-stayed bridge which comprises an inverted Y-shaped bridge tower, an upper main girder and a lower main girder. The upper main girder and the lower main girder are mutually independent. A lower-bridge-tower cross girder is arranged on the lower middle portion of the inverted Y-shaped bridge tower, an upper-bridge-tower cross girder extends outwards from the edge of one side where the inverted Y-shaped bridge tower is higher than the corresponding lower-bridge-tower cross girder, the upper main girder and the lower main girder are connected with the inverted Y-shaped bridge tower respectively through stay cables, the upper main girder is arranged above one side of the lower main girder through the upper-bridge-tower cross girder, the upper main girder and the lower main girder are respectively connected with the inverted Y-shaped bridge tower through the stay cables, and are mutually independent in projection on a horizontal plane, and in other words, the arrangement of the upper main girder does not cause effect on a space region of the lower main girder. By the double-deck bridge deck cable-stayed bridge, a vehicular bridge formed by the lower main girder is enabled to be good in vision permeability; since the upper main girder is separated from the lower main girder, the girders are low in structural height and wind load effect affect. The double-deck bridge deck cable-stayed bridge is applicable to the technical field of bridge engineering.
Description
Technical field
The utility model relates to technical field of bridge engineering, particularly a kind of double-deck cable stayed bridge.
Background technology
The projection of the upper and lower layer bridge floor of traditional double-deck cable stayed bridge on horizontal plane is that overlapped and upper and lower layer bridge floor is structurally one, its main structural system is following two kinds, the one, the structural system of guy system and truss combination: steel truss girder or combination trusses are as supporting member and utilization is winded up and lower edge forms double deck, drag-line is arranged in upper chord outside as Force transmission parts, and rigidity web member is as the connection between double deck system; The 2nd, the structural system of guy system and box-girder combination: for large span guy system bridge, girder can adopt roomy flat multicell box-girder cross section as supporting member and utilize case back, base plate to form double deck.Yet there is following problem in traditional double-deck cable stayed bridge in actual applications: the accident occurring in the traffic of traffic safety ，Ruo lower floor bridge floor may or be destroyed load-carrying members infringement, thereby have influence on the traffic safety of upper deck of bridge; Aspect road-ability, for the situation of box girder, the ventilation of lower floor's bridge floor is in bad order, and the problems such as vehicle exhaust, noise exist larger impact to the traffic comfortableness of lower floor's bridge floor; Aspect structural stability, due to the double-deck cable stayed bridge of tradition, upper and lower girder is integrated, and main beam structure height is large, and wind effect is also larger on the impact of structure, thereby structures under wind is stablized, brings certain negative effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Stability Analysis of Structures, lower floor's bridge floor visual field is good and road-ability is high double-layer bridge-floor cable stayed bridge.
For solving the problems of the technologies described above adopted technical scheme: a kind of double-layer bridge-floor cable stayed bridge, comprise the bridge tower of falling Y shape, be located at upper strata girder separate on the bridge tower of falling Y shape and lower floor's girder, below the bridge tower of falling Y shape, middle part arranges lower bridge tower crossbeam, the bridge tower of falling Y shape is outward extended with bridge tower crossbeam at the lateral edges higher than lower bridge tower crossbeam, lower floor's girder is connected with the bridge tower of falling Y shape by suspension cable and is arranged on lower bridge tower crossbeam Shang， upper strata girder and is connected with the bridge tower of falling Y shape and is arranged on upper bridge tower crossbeam by suspension cable.
Be further used as the improvement of technical solutions of the utility model, the bridge tower of falling Y shape is the asymmetric bridge tower of falling Y shape, one side of the bridge tower of falling Y shape divides limb king-post to have one section of box section king-post, the opposite side of the bridge tower of falling Y shape divides limb king-post to have one section of circular cross-section king-post, and upper bridge tower crossbeam is arranged at box section king-post side.
Be further used as the improvement of technical solutions of the utility model, upper strata girder consists of Steel Continuous Box beam, and lower floor's girder consists of concrete box girder.
Beneficial effect: this double-layer bridge-floor cable stayed bridge Zhong upper strata girder and lower floor's girder are complete separated type anti-bending, upper strata girder is placed in lower floor's girder one side top by upper bridge tower crossbeam, upper strata girder is connected with the bridge tower of falling Y shape by suspension cable separately with lower floor girder, upper strata girder and lower floor's girder are separate at horizontal plane upslide shadow, be that area of space on the layout Bu Huidui lower floor girder of upper strata girder impacts, abandoned the structural system that adopts truss or box-girder in tradition, make the vehicular bridge being formed by lower floor's girder there is good visual field permeability, upper strata girder and lower floor's girder are separate type simultaneously, the structure height of girder is little, wind effect impact is little.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further;
Fig. 1 is the lateral view of the utility model embodiment;
Fig. 2 is the structural representation of bridge tower in the utility model embodiment.
The specific embodiment
See figures.1.and.2, a kind of double-layer bridge-floor cable stayed bridge of the utility model, comprise the bridge tower of falling Y shape 30, be located at upper strata girder 10He lower floor girder 20 separate on the bridge tower of falling Y shape 30, below the bridge tower of falling Y shape 30, middle part arranges lower bridge tower crossbeam 31, the bridge tower of falling Y shape 30 is outward extended with bridge tower crossbeam 32 at the lateral edges higher than lower bridge tower crossbeam 31, lower floor's girder 20 is connected with the bridge tower of falling Y shape 30 by suspension cable and is arranged on lower bridge tower crossbeam 31Shang， upper strata girder 10 and is connected and is arranged on upper bridge tower crossbeam 32 with the bridge tower of falling Y shape 30 by suspension cable.
This double-layer bridge-floor cable stayed bridge Zhong upper strata girder 10He lower floor girder 20 is complete separated type anti-bending, upper strata girder 10 is placed in lower floor's girder 20 1 side tops by upper bridge tower crossbeam 32, upper strata girder 10He lower floor girder 20 is connected with the bridge tower of falling Y shape 30 by suspension cable separately, upper strata girder 10He lower floor girder 20 is separate at horizontal plane upslide shadow, be that area of space on the layout Bu Huidui lower floor girder 20 of upper strata girder 10 impacts, abandoned the structural system that adopts truss or box-girder in tradition, make the vehicular bridge being formed by lower floor's girder 20 there is good visual field permeability, upper strata girder 10He lower floor girder 20 is separate type simultaneously, the structure height of girder is little, wind effect impact is little.
As preferred embodiment of the present utility model, the bridge tower of falling Y shape 30 is the asymmetric bridge tower of falling Y shape, one side of the bridge tower of falling Y shape 30 divides limb king-post to have one section of box section king-post 33, the opposite side of the bridge tower of falling Y shape 30 divides limb king-post to have one section of circular cross-section king-post 34, and upper bridge tower crossbeam 32 is arranged at box section king-post 33 sides.
As preferred embodiment of the present utility model, upper strata girder 10 consists of Steel Continuous Box beam, and lower floor's girder 20 consists of concrete box girder.
The present embodiment be one three across double-deck cable stayed bridge, lower floor's girder 20 adopts concrete box girder to form a vehicular bridge, Qi Kua footpath is combined as 100+200+100 rice, 400 meters of total lengths, concrete box girder is single Xiang San chamber prestressed concrete broad width, upper strata girder 10 forms a pedestrian bridge by multispan Steel Continuous Box beam, its cross section is inverted trapezoidal, the side that suspension cable and upper strata girder 10 close on the bridge tower of falling Y shape 30 is connected on bridge tower crossbeam 32, the arrangement form of suspension cable is by the fan-shaped layout of single rope face, because upper strata girder 10 is arranged on the bridge tower of falling Y shape 30 1 sides, the bridge tower of falling Y shape 30 is except bearing vertical pressure and less vertical bending moment, also be subject to the transverse bending moment that upper strata girder 10 produces by suspension cable effect, the bridge tower of falling Y shape 30 adopt dissymmetrical structure forms just in time can balance this is stressed, two minutes limb king-posts that are somebody's turn to do the bridge tower of falling Y shape 30 adopt the king-post of different cross section, so that both sides divide limb king-post bearing capacity different, in a side of closing on upper strata girder 10, divide limb king-post to adopt the larger box section king-post 33 of bearing area, and opposite side divides limb king-post to adopt circular cross-section king-post 34.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken possessing at described technical field those of ordinary skill, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (3)
1. a double-layer bridge-floor cable stayed bridge, it is characterized in that: comprise the bridge tower of falling Y shape (30), be located at upper separate upper strata girder (10) and the lower floor's girder (20) of the bridge tower of falling Y shape (30), at middle part, the described bridge tower of falling Y shape (30) below, lower bridge tower crossbeam (31) is set, the described bridge tower of falling Y shape (30) is outward extended with upper bridge tower crossbeam (32) at the lateral edges higher than lower bridge tower crossbeam (31), described lower floor girder (20) is connected and is arranged on lower bridge tower crossbeam (31) with the bridge tower of falling Y shape (30) by suspension cable, described upper strata girder (10) is connected and is arranged on upper bridge tower crossbeam (32) with the bridge tower of falling Y shape (30) by suspension cable.
2. double-layer bridge-floor cable stayed bridge according to claim 1, it is characterized in that: the described bridge tower of falling Y shape (30) is the asymmetric bridge tower of falling Y shape, one side of the described bridge tower of falling Y shape (30) divides limb king-post to have one section of box section king-post (33), the opposite side of the described bridge tower of falling Y shape (30) divides limb king-post to have one section of circular cross-section king-post (34), and described upper bridge tower crossbeam (32) is arranged at box section king-post (33) side.
3. double-layer bridge-floor cable stayed bridge according to claim 1 and 2, is characterized in that: described upper strata girder (10) consists of Steel Continuous Box beam, and described lower floor girder (20) consists of concrete box girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320428526.0U CN203393598U (en) | 2013-07-18 | 2013-07-18 | Double-deck bridge deck cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320428526.0U CN203393598U (en) | 2013-07-18 | 2013-07-18 | Double-deck bridge deck cable-stayed bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203393598U true CN203393598U (en) | 2014-01-15 |
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ID=49905141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320428526.0U Withdrawn - After Issue CN203393598U (en) | 2013-07-18 | 2013-07-18 | Double-deck bridge deck cable-stayed bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203393598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410082A (en) * | 2013-07-18 | 2013-11-27 | 广州市市政工程设计研究院 | Double-layer bridge floor cable-stayed bridge |
-
2013
- 2013-07-18 CN CN201320428526.0U patent/CN203393598U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410082A (en) * | 2013-07-18 | 2013-11-27 | 广州市市政工程设计研究院 | Double-layer bridge floor cable-stayed bridge |
| CN103410082B (en) * | 2013-07-18 | 2015-06-17 | 广州市市政工程设计研究院 | Double-layer bridge floor cable-stayed bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140115 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |