CN102644237A - Dual-span spatial arch cable-stayed bridge - Google Patents
Dual-span spatial arch cable-stayed bridge Download PDFInfo
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- CN102644237A CN102644237A CN2012100977243A CN201210097724A CN102644237A CN 102644237 A CN102644237 A CN 102644237A CN 2012100977243 A CN2012100977243 A CN 2012100977243A CN 201210097724 A CN201210097724 A CN 201210097724A CN 102644237 A CN102644237 A CN 102644237A
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Abstract
The invention discloses a dual-span spatial arch cable-stayed bridge, which comprises a bridge deck, a central pier and two groups of spatial arches which are arranged at two transverse sides of the bridge deck. The spatial arch comprises two arch rings which are longitudinally formed at two spans of the bridge deck; opposite arch springings between two arch rings of each group of spatial arch are supported in the central pier in a longitudinal crossed and transverse staggered mode along the bridge; transverse bracings are arranged at the longitudinal crossed part of the two arch rings of each group of spatial arch; and the two arch rings of each group of spatial arch are arranged on the bridge deck through stay ropes. In the invention, the two arch rings at the same side are mutually supported; for a through arch bridge without transverse bracing, under the condition of not obviously increasing the width of arc ribs, a main arch structure has larger in-plane and out-plane stabilities, and higher bearing capacity; the construction of the dual-span spatial arch cable-stayed bridge is simpler than the construction of the conventional arch; the material amount is reduced; large-span transverse connecting construction does not exist; the cost is saved; work period is shortened; the occupied space position in the bridge is obviously reduced; and the dual-span spatial arch cable-stayed bridge is good for bridge clearance arrangement.
Description
Technical field
The invention belongs to the bridge engineering field, particularly a kind of two stride space arch cable stayed bridge
Background technology
In the prior art; Conventional lower bearing arch bridge generally by two vertical or mutual plane inclined arch ribs that are positioned at the bridge both sides as its load-carrying members; Bridge deck structure is supported on arch rib through vertical suspension rod; For guaranteeing the main arch stability of structure, a plurality of lateral ties need be set between two arch ribs two plane arch ribs are connect the space structures for integral body, the side direction unstability does not take place to guarantee the main arch structure.Since there are a plurality of lateral ties between the two arch ribs arch of bridge floor top, the big or limited bridge of sagitta to width, and the headway of going at bridge floor has tangible sense of depression, and the lateral ties of large span make that also construction is complicated and structure stress is not good enough; For avoiding the sense of depression of lower bearing arch bridge headway; Lateral ties between cancellation two arch ribs are also arranged; But must strengthen self width of rib structure simultaneously, meet the demands to guarantee its face external stability and since arch rib self width senior general cause consumptive material high, occupy the bridge clear span and owe defective attractive in appearance.
Therefore, need existing arch bridge to improve, have and bear load capacity preferably; Can guarantee the stability of integral bridge, there is not the risk of toppling in arch itself, and does not take the upper space of bridge floor; Arch design need not considered the bridge floor condition of pass through yet, and integral body has profile more attractive in appearance.
Summary of the invention
In view of this; The purpose of this invention is to provide a kind of two and stride space arch cable stayed bridge; Need not to be provided with under the condition of lateral ties between two arch ribs to lower bearing arch bridge; Have and bear external stability in load capacity and the stronger main arch face preferably, and save material usage and reduce the main arch structure, and wholely have a profile more attractive in appearance the taking of bridge floor clear span.
Of the present invention two stride space arch cable stayed bridge; Comprise bridge floor, middle bridge pier and be positioned at two groups of spaces arch of bridge floor both lateral sides; Said space arch constitutes by vertically form two two arch rings of striding along bridge floor; Between two arch rings of every group of space arch relative arch springing with vertically intersect each other along bridge and along the mode together support of lateral alternate in middle bridge pier, two arch rings of every group of space arch are provided with transverse splicing at vertical infall, every group of space two arch rings of arch are all executed pulling force in bridge floor through drag-line.
Further, two relative arch springings of arch ring of every group of space arch are positioned at same helix;
Further, relative arch springing extends below and forms mutual slick and sly fixed connection structure to bridge floor between two arch rings of every group of space arch, forms the spirality integral connecting structure between two arch rings that every group of space encircleed;
Further, two arch rings of every group of space arch vertically form wing-shaped structure to two ends along bridge floor;
Further, relative arch springing is supported in middle bridge pier to the slick and sly fixed connection structure that bridge floor extends below formation between two arch rings of every group of space arch;
Further, the wing-shaped structure of drag-line and arch ring adapts and is obliquely installed to wing tip;
Further, opposing arch springing is positioned on same vertical straight line between two arch rings of every group of space arch.。
The invention has the beneficial effects as follows: of the present invention two stride space arch cable stayed bridge; Adopt two to stride the space arch and replace existing plane arch structure, two stride the space arch is above middle pier along two arch ribs of bridge lateral and spatially staggers each other but two arch rings structurally interconnecting, realizes between two arch rings of homonymy supporting each other; To not establishing the lower bearing arch bridge of lateral ties; Under the condition of not obvious increase arch rib self width, make the main arch structure have external stability and advantages of high bearing capacity in the bigger face, aspect construction; The present invention is also easy than traditional arch; Material usage reduces more, and does not have the construction of large span lateral ties, but reduces cost and the reduction of erection time; The present invention does not take the upper space of bridge floor, and space arch design need not considered the bridge floor condition of pass through yet, and the locus that in bridge, occupies obviously reduces, and helps the layout of bridge headroom, and integral body has profile more attractive in appearance.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is a bridge main body structural representation of the present invention;
Fig. 2 is space arch vertical view;
Fig. 3 be Fig. 2 along A to view.
The specific embodiment
Fig. 1 is a bridge main body structural representation of the present invention; Fig. 2 is space arch vertical view, and Fig. 3 is for Fig. 2 strides space arch cable stayed bridge along A to two of view present embodiment, comprises bridge floor 1, middle bridge pier 2 and is positioned at two groups of spaces arches of bridge floor 1 both lateral sides; Said space arch constitutes by vertically form two two arch rings of striding along bridge floor; As shown in the figure, arch ring 3 constitutes one group of space arch with arch ring 4, arch ring 31 and arch ring 41 another group space arches; Between two arch rings of every group of space arch relative arch springing with vertically intersect each other along bridge and along the mode together support of lateral alternate in middle bridge pier, relative arch springing promptly is to point to the arch springing of bridge in the middle of vertically; This structure is practiced thrift construction cost, and is simple in structure; Two arch rings of every group of space arch are provided with transverse splicing at vertical infall, and every group of space two arch rings of arch are all executed pulling force in bridge floor through drag-line; As shown in the figure; Arch ring 3 is fixedly connected through lateral ties 7 with arch ring 4, and arch ring 31 is fixedly connected through lateral ties 71 with arch ring 41, forms effectively to support; The connected mode that lateral ties are different with structure choice according to the type of arch ring can be structures such as concrete, steel case; Two arch rings of said every group of space arch (arch ring 3 and arch ring 4 and arch ring 31 and arch ring 41) are all executed pulling force in bridge floor through drag-line 6, and the construction of drag-line and structure can adopt the anchor structure of prior art, repeat no more at this; Simultaneously, arch ring extends to the arch springing at bridge two ends can adopt prior art with the construction between the corresponding bridge pier, such as being through being arranged in the limit bridge pier of bridge pier both sides, for the less bridge of span, can adopt two sides abutment structure, repeats no more at this.
In the present embodiment, the relative arch springing of two arch rings (arch ring 3 and arch ring 4 and arch ring 31 and arch ring 41) of every group of space arch (being applicable to two groups of space arches) is positioned at same helix; Employing is positioned at same helix structure, adapts to the stress curve characteristics, improves stability of strutting system.
In the present embodiment; Relative arch springing extends below and forms mutual slick and sly fixed connection structure to bridge floor 1 between two arch rings (arch ring 3 and arch ring 4 and arch ring 31 and arch ring 41) of every group of space arch (being applicable to two groups of space arches), forms the spirality integral connecting structure between two arch rings that every group of space encircleed; Make mutual slick and sly connection of two arch ring bottoms that the polycrystalline substance of helical structure is beneficial to the dispersion bearing capacity, improves its supporting capacity, and makes the overall structure of arch attractive in appearance.
In the present embodiment, two arch rings (arch ring 3 and arch ring 4 and arch ring 31 and arch ring 41) of every group of space arch (being applicable to two groups of space arches) vertically form wing-shaped structure to two ends along bridge floor 1; Wing-shaped structure be meant near high in the middle of the bridge and to both sides straight structure has aesthetic feeling to the smooth structure that extends below, art feature is higher, is beneficial to bearing capacity simultaneously and distributes.
In the present embodiment, relative arch springing bridge pier 2 in the slick and sly fixed connection structure that bridge floor 1 extends below formation is supported between two arch rings (arch ring 3 and arch ring 4 and arch ring 31 and arch ring 41) of every group of space arch (being applicable to two groups of spaces arches); Extend under the bridge, bridge pier can fully contact the space confession arch springing of helical structure in making, increases contact area, improves supporting capacity.
In the present embodiment, the wing-shaped structure of drag-line 6 and arch ring (arch ring 3 and arch ring 4 and arch ring 31 and arch ring 41) adapts and is obliquely installed to wing tip; Make the flat segments of wing-shaped structure bear big pressure, reasonable distribution is carried, and guarantees whole stability.
In the present embodiment; (between arch ring 3 and the arch ring 4 and between arch ring 31 and the arch ring 41) opposing arch springing is positioned on same vertical straight line between two arch rings of every group of space arch (being applicable to two groups of space arches); Opposing arch springing is the arch springing that points to the bridge two ends; Be positioned at same vertical straight line, it is little to take up room, and layout is more reasonable.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (7)
1. stride space arch cable stayed bridge for one kind two; It is characterized in that: comprise bridge floor, middle bridge pier and be positioned at two groups of spaces arch of bridge floor both lateral sides; Said space arch constitutes by vertically form two two arch rings of striding along bridge floor; Between two arch rings of every group of space arch relative arch springing with vertically intersect each other along bridge and along the mode together support of lateral alternate in middle bridge pier; Two arch rings of every group of space arch are provided with transverse splicing at vertical infall, and every group of space two arch rings of arch are all executed pulling force in bridge floor through drag-line.
2. according to claim 1 two stride space arch cable stayed bridge, and it is characterized in that: two relative arch springings of arch ring of every group of space arch are positioned at same helix.
3. according to claim 2 two stride space arch cable stayed bridge; It is characterized in that: relative arch springing extends below and forms mutual slick and sly fixed connection structure to bridge floor between two arch rings of every group of space arch, forms the spirality integral connecting structure between two arch rings that every group of space encircleed.
4. stride space arch cable-stayed bridge based on claim 3 described two, it is characterized in that: two arch rings of every group of space arch vertically form wing-shaped structure to two ends along bridge floor.
5. according to claim 4 two stride space arch cable stayed bridge, and it is characterized in that: relative arch springing is supported in middle bridge pier to the slick and sly fixed connection structure that bridge floor extends below formation between two arch rings of every group of space arch.
6. according to claim 5 two stride space arch cable stayed bridge, and it is characterized in that: the wing-shaped structure of drag-line and arch ring adapts and is obliquely installed to wing tip.
7. according to claim 6 two stride space arch cable stayed bridge, and it is characterized in that: opposing arch springing is positioned on same vertical straight line between two arch rings of every group of space arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097724.3A CN102644237B (en) | 2012-04-05 | 2012-04-05 | Dual-span spatial arch cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097724.3A CN102644237B (en) | 2012-04-05 | 2012-04-05 | Dual-span spatial arch cable-stayed bridge |
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| Publication Number | Publication Date |
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| CN102644237A true CN102644237A (en) | 2012-08-22 |
| CN102644237B CN102644237B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210097724.3A Active CN102644237B (en) | 2012-04-05 | 2012-04-05 | Dual-span spatial arch cable-stayed bridge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120658A (en) * | 2014-08-01 | 2014-10-29 | 武船重型工程股份有限公司 | Machining method of space warping bridge and space warping bridge |
| CN107841934A (en) * | 2017-12-11 | 2018-03-27 | 北京市市政工程设计研究总院有限公司 | Spread the wings and encircle cable-stayed bridge |
| CN113322774A (en) * | 2021-05-20 | 2021-08-31 | 湖南大学 | Ultra-high performance concrete continuous cross net-shaped arch bridge and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87104935A (en) * | 1987-07-16 | 1988-09-21 | 孙又能 | Arch-cable bridge |
| CN1793514A (en) * | 2005-08-29 | 2006-06-28 | 李勇 | Arch |
| CN200996127Y (en) * | 2006-08-17 | 2007-12-26 | 铁道第四勘察设计院 | Stayed-cable arched assembled bridge |
| KR20090009517A (en) * | 2007-07-20 | 2009-01-23 | 코스피 주식회사 | The long span structure and this construction technique which synthesized an arch and a under tension |
-
2012
- 2012-04-05 CN CN201210097724.3A patent/CN102644237B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87104935A (en) * | 1987-07-16 | 1988-09-21 | 孙又能 | Arch-cable bridge |
| CN1793514A (en) * | 2005-08-29 | 2006-06-28 | 李勇 | Arch |
| US20080005857A1 (en) * | 2005-08-29 | 2008-01-10 | Yong Li | Arch bridge |
| CN200996127Y (en) * | 2006-08-17 | 2007-12-26 | 铁道第四勘察设计院 | Stayed-cable arched assembled bridge |
| KR20090009517A (en) * | 2007-07-20 | 2009-01-23 | 코스피 주식회사 | The long span structure and this construction technique which synthesized an arch and a under tension |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120658A (en) * | 2014-08-01 | 2014-10-29 | 武船重型工程股份有限公司 | Machining method of space warping bridge and space warping bridge |
| CN104120658B (en) * | 2014-08-01 | 2016-04-13 | 武船重型工程股份有限公司 | A kind of spatial warping bridge processing method and spatial warping bridge |
| CN107841934A (en) * | 2017-12-11 | 2018-03-27 | 北京市市政工程设计研究总院有限公司 | Spread the wings and encircle cable-stayed bridge |
| CN107841934B (en) * | 2017-12-11 | 2024-03-01 | 北京市市政工程设计研究总院有限公司 | Wing-spreading arch cable-stayed bridge |
| CN113322774A (en) * | 2021-05-20 | 2021-08-31 | 湖南大学 | Ultra-high performance concrete continuous cross net-shaped arch bridge and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN102644237B (en) | 2014-07-16 |
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