CN104594180A - Multi-tower continuous span cable-stayed bridge - Google Patents
Multi-tower continuous span cable-stayed bridge Download PDFInfo
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- CN104594180A CN104594180A CN201510019198.2A CN201510019198A CN104594180A CN 104594180 A CN104594180 A CN 104594180A CN 201510019198 A CN201510019198 A CN 201510019198A CN 104594180 A CN104594180 A CN 104594180A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a multi-tower continuous span cable-stayed bridge, which comprises N continuous spans, wherein the continuous spans are sequentially connected, each continuous span comprises a main beam, M bridge towers and a plurality of stay cables, the stay cables are used for connecting the bridge towers and the main beam, N and M are natural numbers, the N is greater than or equal to 2, and the M is greater than or equal to 3. The multi-tower continuous span cable-stayed bridge has the advantages that in each continuous span, the main beam is of a continuous structure, and a rigid hinge is arranged between every two adjacent spans and is used for releasing the longitudinal relative linear displacement of the main beam, so as to solve the problem of temperature effect of the long main beam; one bridge tower adjacent to each rigid hinge is of a four-leg vase-shaped structure, so as to improve the vertical rigidity of the bridge and reduce the bridge tower foundation scale; the middle bridge tower is provided with a longitudinal and transverse elastic restraint device and a transverse dynamic damping device, and the other bridge towers are provided with longitudinal and transverse dynamic damping devices and transverse elastic restraint devices, so as to improve the longitudinal and transverse static and dynamic stress properties of the bridge. The vertical rigidity and the static and dynamic stress properties of the multi-tower cable-stayed bridge can be effectively improved, the foundation scale is reduced, and the economy is better.
Description
Technical field
The present invention relates to technical field of bridge engineering, be specifically related to a kind of multi-tower continuous across cable stayed bridge.
Background technology
The span ability of multi pylon cable stayed bridge is large, in the Bridge alternatives crossing over deep mountain valleys, rivers bay, have very strong competitiveness.In multi pylon cable stayed bridge, many employing three pylon cable-stayed bridge schemes, as Italian maze OK a karaoke club bridge, spit of fland, Hong Kong nine bridge, Yueyang Dongting Lake Bridge, the smooth mound Yangtze Bridge, Binzhou Yellow River Bridge, Wuhan two or seven Yangtze Bridge, the rich bridge of Korea S's generation, Scotland FOX bridge etc.In addition, also built the more multi pylon cable stayed bridge of some bridge towers in the world, as father-in-law's bridge in Greece Li Wengandi be four pylon cable-stayed bridges, China good continues that bridge is six pylon cable-stayed bridges, French rice about bridge be seven pylon cable-stayed bridges.At present, some overall lengths longer, carry out project study, as Qiongzhou Strait bridge etc. across the multi pylon cable stayed bridge that footpath is larger.
For three pylon cable-stayed bridges, the higher middle tower of usual employing, end bay arrange auxiliary pier, middle tower and arrange with girder consolidation, main span span centre section and intersect the modes such as rope to improve the rigidity of bridge, as Italian maze OK a karaoke club bridge, spit of fland, Hong Kong nine bridge, Yueyang Dongting Lake Bridge, the smooth mound Yangtze Bridge, Binzhou Yellow River Bridge, Wuhan two or seven Yangtze Bridge, the rich bridge of Korea S's generation, Scotland FOX bridge etc.
For the multi pylon cable stayed bridge that some bridge towers are more, in Greece Li Wengandi, four bridge towers of father-in-law's bridge all have employed the larger bridge tower of rigidity, and adopt reinforced earth shock insulating foundation to deal with basis dislocation and the jerk of macroseism generation.Seven bridge towers of France's rice about bridge are arranged among mountain valley, and the pier stud of the following bridge tower of bridge floor adopts double thin wall pier to adapt to the needs of longitudinal strain; Employing tower beam consolidation, bridge tower place girder arrange double bearing, to improve girder rigidity, improve the stressed of upper king-post strut.The good bridge overall length 2680m that continues of China, be multi pylon cable stayed bridge the longest in the world, it arranges rigid hinge at full-bridge span centre, to slow down the impact of temperature effect on long span bridge deformation, establishes double bearing between bridge tower and girder, adopts half float system therebetween.
The multi pylon cable stayed bridge larger for overall length, span is larger, it is compared with conventional multi pylon cable stayed bridge, and the rigidity of bridge construction is more soft, and the force model response under the force model load actions such as temperature, strong wind, macroseism is larger.In order to effectively improve overlength, greatly across the rigidity of structure of multi pylon cable stayed bridge, effectively controlling the force model response of bridge, reducing the basic scale of bridge tower, rational structural system must be researched and developed as early as possible, for overlength, provide technical support across multi pylon cable stayed bridge construction greatly.
Summary of the invention
(1) technical problem that will solve
In view of this, main purpose of the present invention is to provide a kind of multi-tower continuous across cable stayed bridge, effectively to improve the rigidity of structure of bridge, controls the force model response of bridge construction, and reduces the scale of pylon foundation.
(2) technical scheme
For achieving the above object, the invention provides a kind of multi-tower continuous across cable stayed bridge, this multi-tower continuous across cable stayed bridge comprise N number of company connected successively across, wherein each company is across the suspension cable comprising a girder, a M bridge tower, many connection bridge towers and girder, N and M is natural number, and N >=2, M >=3; In each company across interior, girder is continuous structure, adjacent company across between the rigid hinge that can discharge the longitudinal relative linear displacement of girder is set, to solve long girder temperature effect problem; The bridge tower adjacent with rigid hinge is four tower leg flower vase type structures, to improve bridge vertical rigidity, reduce pylon foundation scale and increase landscape effect; Middle bridge tower arranges vertical and horizontal elastic restraint device, lateral dynamics damping unit, and all the other bridge towers arrange vertical and horizontal dynamic damping device, transverse elasticity restraint device, with improve bridge in length and breadth to force model stress performance.
In such scheme, described each company is across interior middle bridge tower and four tower leg flower vase type bridge towers, and its lower king-post strut all adopts steel-concrete combined structure, to strengthen the supporting capacity of bridge tower.
(3) beneficial effect
As can be seen from technique scheme, the present invention has following beneficial effect:
1, provided by the invention multi-tower continuous across cable stayed bridge, girder each company across interior be continuous structure, adjacent company across between the rigid hinge that can discharge the longitudinal relative linear displacement of girder is set, rationally can solve long girder temperature effect problem.
2, provided by the invention multi-tower continuous across cable stayed bridge, each company is four tower leg flower vase type structures across the interior bridge tower adjacent with rigid hinge, to improve bridge vertical rigidity, reduce pylon foundation scale and increase landscape effect.Meanwhile, the lower king-post strut of bridge tower all adopts steel-concrete combined structure, greatly can improve the supporting capacity of bridge tower lower king-post strut, save engineering cost.
3, provided by the invention multi-tower continuous across cable stayed bridge, by rationally arranging vertical and horizontal elastic restraint and dynamic damping device, the displacement of effective control structure under force model effect and interior force-responsive, guarantee safety and the comfortableness of structure.
Accompanying drawing explanation
Fig. 1 connects across the axonometric drawing of cable stayed bridge according to a kind of 9 towers 3 of the embodiment of the present invention;
Fig. 2 connects across the elevation of cable stayed bridge according to a kind of 9 towers 3 of the embodiment of the present invention;
Fig. 3 is the schematic diagram indulging horizontal restrain according to four tower leg flower vase type bridge towers of the embodiment of the present invention and girder;
Fig. 4 is the schematic diagram indulging horizontal restrain according to the middle bridge tower of the embodiment of the present invention and girder.
Reference numeral: limit tower 1; Middle bridge tower 2; Four tower leg flower vase type bridge towers 3; Suspension cable 4; Girder 5; Rigid hinge 6; Longitudinal elastic constraints device 11; Longitudinal damping unit 12; Transverse elasticity restraint device 13; Lateral dynamics damping unit 14.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
The invention provides a kind of multi-tower continuous across cable stayed bridge, this multi-tower continuous across cable stayed bridge comprise N number of company connected successively across, wherein each company is natural number across the suspension cable 4, N and M comprising a girder 5, a M bridge tower, many connection bridge towers and girder, and N >=2, M >=3; In each company across interior, girder 5 is continuous structure, adjacent company across between arrange and can discharge the rigid hinge 6 of the longitudinal relative linear displacement of girder 5, to solve the temperature effect problem of long girder 5; The bridge tower adjacent with rigid hinge 6 is four tower leg flower vase type bridge towers 3, to improve bridge vertical rigidity, reduce pylon foundation scale and increase landscape effect; Middle bridge tower 2 is provided with longitudinal elastic constraints device 11, transverse elasticity restraint device 13 and lateral dynamics damping unit 14, the bridge tower of all the other positions is provided with Longitudinal damping unit 12, transverse elasticity restraint device 13 and lateral dynamics damping unit 14, with improve bridge in length and breadth to force model stress performance.
Wherein, each company is across interior middle bridge tower and four tower leg flower vase type bridge towers, and its lower king-post strut all adopts steel-concrete combined structure, to strengthen the supporting capacity of bridge tower.
As depicted in figs. 1 and 2, Fig. 1 connects across the axonometric drawing of cable stayed bridge according to a kind of 9 towers 3 of the embodiment of the present invention, Fig. 2 connects across the elevation of cable stayed bridge according to a kind of 9 towers 3 of the embodiment of the present invention, in the present embodiment, this multi-tower continuous across cable stayed bridge comprise three companies connected successively across, wherein each company is across comprising a girder 5, three bridge towers and many suspension cables 4, is positioned at this 9 tower 3 and is even also called limit tower 1 across the bridge tower at cable stayed bridge two ends.
9 towers 3 shown in Fig. 1 and Fig. 2 connect across cable stayed bridge, girder 5 each company across interior be continuous structure, adjacent company across between arrange and can discharge the longitudinal relative linear displacement of girder 5, constraint girder corner and the rigid hinge 6 of shear displacemant, rationally to solve long girder 5 temperature effect problem.Each company is across interior, and the bridge tower adjacent with rigid hinge 6 is four tower leg flower vase type bridge towers 3, and all the other bridge towers adopt two tower leg flower vase type structures, to improve bridge vertical rigidity, reduce pylon foundation scale and increase landscape effect; Each company is across interior middle bridge tower and four tower leg flower vase type bridge towers, and its lower king-post strut all adopts steel-concrete combined structure, to strengthen the supporting capacity of bridge tower.Connect across interior at each, the bridge tower (namely bridge tower 2) in centre position is provided with longitudinal elastic constraints device 11, transverse elasticity restraint device 13 and lateral dynamics damping unit 14, as shown in Figure 4, the bridge tower (i.e. limit tower 1 and four tower leg flower vase type bridge towers 3) of all the other positions is provided with Longitudinal damping unit 12, transverse elasticity restraint device 13 and lateral dynamics damping unit 14, as shown in Figure 3, with improve bridge in length and breadth to force model stress performance.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. multi-tower continuous across a cable stayed bridge, it is characterized in that, this multi-tower continuous across cable stayed bridge comprise N number of company connected successively across, wherein each company is across the suspension cable comprising a girder, a M bridge tower, many connection bridge towers and girder, N and M is natural number, and N >=2, M >=3;
In each company across interior, girder is continuous structure, adjacent company across between the rigid hinge that can discharge the longitudinal relative linear displacement of girder is set, to solve long girder temperature effect problem;
The bridge tower adjacent with rigid hinge is four tower leg flower vase type structures, to improve bridge vertical rigidity, reduce pylon foundation scale and increase landscape effect;
Middle bridge tower arranges vertical and horizontal elastic restraint device, lateral dynamics damping unit, and all the other bridge towers arrange vertical and horizontal dynamic damping device, transverse elasticity restraint device, with improve bridge in length and breadth to force model stress performance.
2. according to claim 1 multi-tower continuous across cable stayed bridge, it is characterized in that, described each company is across interior middle bridge tower and four tower leg flower vase type bridge towers, and its lower king-post strut all adopts steel-concrete combined structure, to strengthen the supporting capacity of bridge tower.
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| CN201510019198.2A CN104594180B (en) | 2015-01-15 | 2015-01-15 | A kind of multi-tower continuous across cable stayed bridge |
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| CN201510019198.2A CN104594180B (en) | 2015-01-15 | 2015-01-15 | A kind of multi-tower continuous across cable stayed bridge |
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| CN104594180B CN104594180B (en) | 2016-04-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887654A (en) * | 2016-06-07 | 2016-08-24 | 湖南大学 | Multi-tower cable-stayed bridge and construction method thereof |
| CN108517763A (en) * | 2018-05-17 | 2018-09-11 | 中铁第勘察设计院集团有限公司 | Railway multi pylon cable stayed bridge structural system |
| CN110373991A (en) * | 2019-07-02 | 2019-10-25 | 中铁二院工程集团有限责任公司 | A kind of raising large span stayed-cable bridge lateral stiffness construction |
| CN111608064A (en) * | 2020-05-28 | 2020-09-01 | 江苏华通工程检测有限公司 | Double-width four-cable-plane multi-tower cable-stayed bridge with annular support stump flowerpot-shaped bracket |
| WO2022165983A1 (en) * | 2021-02-02 | 2022-08-11 | 中铁大桥勘测设计院集团有限公司 | Method for determining longitudinal restraint stiffness between tower beams of three-tower cable-stayed bridge and for optimizing foundation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887654A (en) * | 2016-06-07 | 2016-08-24 | 湖南大学 | Multi-tower cable-stayed bridge and construction method thereof |
| CN108517763A (en) * | 2018-05-17 | 2018-09-11 | 中铁第勘察设计院集团有限公司 | Railway multi pylon cable stayed bridge structural system |
| CN110373991A (en) * | 2019-07-02 | 2019-10-25 | 中铁二院工程集团有限责任公司 | A kind of raising large span stayed-cable bridge lateral stiffness construction |
| CN111608064A (en) * | 2020-05-28 | 2020-09-01 | 江苏华通工程检测有限公司 | Double-width four-cable-plane multi-tower cable-stayed bridge with annular support stump flowerpot-shaped bracket |
| CN111608064B (en) * | 2020-05-28 | 2021-08-17 | 江苏华通工程检测有限公司 | Double-width four-cable-plane multi-tower cable-stayed bridge with annular support stump flowerpot-shaped bracket |
| WO2022165983A1 (en) * | 2021-02-02 | 2022-08-11 | 中铁大桥勘测设计院集团有限公司 | Method for determining longitudinal restraint stiffness between tower beams of three-tower cable-stayed bridge and for optimizing foundation |
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| Publication number | Publication date |
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| CN104594180B (en) | 2016-04-13 |
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