CN103966943A - Structural system for controlling transverse response of cable-stayed bridge main beam, auxiliary pier and transition pier - Google Patents
Structural system for controlling transverse response of cable-stayed bridge main beam, auxiliary pier and transition pier Download PDFInfo
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Abstract
The invention discloses a structural system for controlling transverse response of a cable-stayed bridge main beam, auxiliary piers and transition piers. A cable-stayed bridge comprises a main beam, bridge towers, auxiliary piers and transition piers. The structural system comprises a plurality of transversely arranged first elastic supports and a plurality of first power damping devices among the main beam and the bridge towers, a plurality of transversely arranged second elastic supports and a plurality of second power damping devices among the main beam and the auxiliary piers, and a plurality of transversely arranged third elastic supports and a plurality of third power damping devices among the main beam and the transition piers. The structural system can effectively control transverse displacement and internal force response of the cable-stayed bridge main beam, the auxiliary piers and the transition piers, is simple and reasonable in execution scheme and good in economy, and can be popularized and applied to other bridge types such as suspension bridges.
Description
Technical field
The present invention relates to technical field of bridge engineering, be specifically related to a kind of for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response.
Background technology
Cable stayed bridge is a kind of modern bridge type, good economy performance, wide adaptability, the present main flow bridge type that has developed into Loads of Long-span Bridges.The realization of general arrangement, structural safety and the function of the structural system direct relation bridge of cable stayed bridge.Soft across Cable-Stayed Bridge Structure greatly, damping is low, very responsive to the static(al)s such as automobile, temperature, strong wind and earthquake and dynamic action.
The structural system of cable stayed bridge has been carried out to research work very widely both at home and abroad, but major part concentrates on the research of vertical structure system and key device thereof, and through research for many years and practice, this problem is tentatively solved.Yet, at present relatively less to the research of transversary system.Former studies shows, suitable vertical structure system has better effects to controlling length travel and the interior force-responsive of bridge, but cannot reduce lateral displacement and the interior force-responsive of bridge.Therefore,, than vertical structure system, the transversary system of cable stayed bridge seems more complicated.
Conventionally, in the transversary system of cable stayed bridge, horizontal wind-resistant support is set between girder and bridge tower, cross spacing bearing or suitable stopping means are set between girder and auxiliary pier, girder and transition pier.Horizontal wind-resistant support, cross spacing bearing or stopping means etc. are lateral stiffness and support, at horizontal strong wind, under the effect such as earthquake, above-mentioned lateral stiffness supports the king-post that tends to cause girder and bridge tower, cross spacing bearing or the stopping means of girder and auxiliary pier, between the cross spacing bearing of girder and transition pier or stopping means, bump, and girder and bridge tower have been restricted, auxiliary pier, the relative motion of transition pier, this rigid constraint system conventionally make the lateral displacement of cable stayed bridge and interior force-responsive very large, thereby initiation girder, the potential safety hazard of auxiliary pier and transition pier.
In order to improve the lateral stressed performance of cable stayed bridge under the static(al)s such as automobile, temperature, strong wind and earthquake and dynamic action, need to study structural safety and functional requirement that effective transversary system ensures bridge.
Summary of the invention
(1) technical problem that will solve
In view of this, main purpose of the present invention is for the transverse response problem of cable stayed bridge girder, auxiliary pier and transition pier under the static(al)s such as temperature, automobile brake, strong wind, earthquake and dynamic action, provides a kind of for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response.
(2) technical scheme
For achieving the above object, the invention provides that a kind of this cable stayed bridge has girder 1, bridge tower 2, auxiliary pier 5 and transition pier 8 for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, this structural system comprises:
A plurality of first resiliency supported 3 and a plurality of the first dynamic damping devices 4 of horizontally set between girder 1 and bridge tower 2;
A plurality of second resiliency supported 6 and a plurality of the second dynamic damping devices 7 of horizontally set between girder 1 and auxiliary pier 5; And
A plurality of the 3rd resiliency supported 9 and a plurality of the 3rd dynamic damping devices 10 of horizontally set between girder 1 and transition pier 8.
In such scheme, described a plurality of the first resiliency supported 3, a plurality of the second resiliency supported 6, a plurality of the 3rd resiliency supported 9 are steel, marmem, rubber, polymer composite or this four kinds of elastic devices that combination of materials is made.
In such scheme, described a plurality of the first dynamic damping devices 4, a plurality of the second dynamic damping device 7 and a plurality of the 3rd dynamic damping device 10 are metal damper, polymer composite damper, frcition damper, viscous damper, viscoelastic damper or composite damper.
In such scheme, between described girder 1 left and right sides and the king-post of bridge tower 2, be laterally respectively provided with gap, between the width B=0.5～2m in gap.Described a plurality of the first resiliency supported 3 is arranged in the gap between described girder 1 left and right sides and the king-post of bridge tower 2, and 3 pairs of girders 1 of the plurality of the first resiliency supported provide horizontal elastic restraint, but allows girder 1 longitudinally moving freely.
In such scheme, by described a plurality of the first resiliency supported 3 and described a plurality of the first dynamic damping device 4, control lateral displacement and the interior force-responsive of girder 1.
In such scheme, by a plurality of the second resiliency supported 6 and a plurality of the second dynamic damping devices 7 at horizontally set between girder 1 and auxiliary pier 5, control lateral displacement and the interior force-responsive of girder 1 and auxiliary pier 5.
In such scheme, by a plurality of the 3rd resiliency supported 9 and a plurality of the 3rd dynamic damping devices 10 of horizontally set between girder 1 and transition pier 8, control lateral displacement and the interior force-responsive of girder 1 and transition pier 8.
(3) beneficial effect
From technique scheme, can find out, the present invention has following beneficial effect:
1, provided by the invention this for controlling cable-stayed bridge main-beam, the structural system of auxiliary pier and transition pier transverse response, by a plurality of the first resiliency supported 3 are rationally set, a plurality of the first dynamic damping devices 4, a plurality of the second resiliency supported 6, a plurality of the second dynamic damping devices 7, a plurality of the 3rd resiliency supported 9 and a plurality of the 3rd dynamic damping devices 10, so effectively transversary rigidity and structural damping of preferred arrangement cable stayed bridge, thereby can effectively control cable-stayed bridge main-beam, auxiliary pier and transition pier displacement and the interior force-responsive under static(al) and dynamic action, ensure structural safety and the functional requirement of bridge, reduced the construction cost of bridge.
2, provided by the invention this for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, because installation, inspection, maintenance, the replacing of the first resiliency supported 3, the first dynamic damping device 4, the second resiliency supported 6, the second dynamic damping device 7, the 3rd resiliency supported 9 and the 3rd dynamic damping device 10 are convenient, good economy performance, can promote the use of other bridge types such as suspension bridge.
Accompanying drawing explanation
Fig. 1 be confession of the present invention for controlling the schematic diagram of the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response.
Fig. 2 is that Fig. 1 middle girder supports with bridge tower transverse elasticity the schematic diagram being connected with dynamic damping device
Fig. 3 is that Fig. 1 middle girder supports with auxiliary pier (transition pier) transverse elasticity the schematic diagram being connected with dynamic damping device.
Mark in accompanying drawing:
Girder 1; Bridge tower 2; The first resiliency supported 3; The first dynamic damping device 4; Auxiliary pier 5; The second resiliency supported 6; The second dynamic damping device 7; Transition pier 8; The 3rd resiliency supported 9; The 3rd dynamic damping device 10.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing 1, Fig. 2 and Fig. 3, the present invention is described in more detail.
As shown in Figure 1, Fig. 1 be confession of the present invention for controlling the schematic diagram of the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response.Cable stayed bridge shown in Fig. 1 has girder 1, bridge tower 2, auxiliary pier 5 and transition pier 8, should comprise for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response:
A plurality of first resiliency supported 3 and a plurality of the first dynamic damping devices 4 of horizontally set between girder 1 and bridge tower 2; A plurality of second resiliency supported 6 and a plurality of the second dynamic damping devices 7 of horizontally set between girder 1 and auxiliary pier 5; And between girder 1 and transition pier 8 a plurality of the 3rd resiliency supported 9 and a plurality of the 3rd dynamic damping devices 10 of horizontally set.Described a plurality of the first resiliency supported 3, a plurality of the second resiliency supported 6, a plurality of the 3rd resiliency supported 9 are steel, marmem, rubber, polymer composite or this four kinds of elastic devices that combination of materials is made; In such scheme, described a plurality of the first dynamic damping devices 4, a plurality of the second dynamic damping device 7 and a plurality of the 3rd dynamic damping device 10 are metal damper, polymer composite damper, frcition damper, viscous damper, viscoelastic damper or composite damper.
Wherein, as shown in Figure 2, between described girder 1 left and right sides and the king-post of bridge tower 2, be laterally respectively provided with gap, between the width B=0.5～2m in gap.Described a plurality of the first resiliency supported 3 is arranged in the gap between described girder 1 left and right sides and the king-post of bridge tower 2, and 3 pairs of girders 1 of the plurality of the first resiliency supported provide horizontal elastic restraint, but allows girder 1 longitudinally moving freely.
As shown in Figures 2 and 3, by described a plurality of the first resiliency supported 3 and described a plurality of the first dynamic damping device 4, control lateral displacement and the interior force-responsive of girder 1.By a plurality of the second resiliency supported 6 and a plurality of the second dynamic damping devices 7 at horizontally set between girder 1 and auxiliary pier 5, control lateral displacement and the interior force-responsive of girder 1 and auxiliary pier 5.By a plurality of the 3rd resiliency supported 9 and a plurality of the 3rd dynamic damping devices 10 of horizontally set between girder 1 and transition pier 8, control lateral displacement and the interior force-responsive of girder 1 and transition pier 8.
Provided by the invention this for controlling cable-stayed bridge main-beam, the structural system of auxiliary pier and transition pier transverse response, by a plurality of the first resiliency supported 3 are rationally set, a plurality of the first dynamic damping devices 4, a plurality of the second resiliency supported 6, a plurality of the second dynamic damping devices 7, a plurality of the 3rd resiliency supported 9 and a plurality of the 3rd dynamic damping devices 10, effectively transversary rigidity and the structural damping of preferred arrangement cable stayed bridge, thereby can effectively control cable-stayed bridge main-beam, auxiliary pier and transition pier displacement and the interior force-responsive under static(al) and dynamic action, ensure structural safety and the functional requirement of bridge, reduced the construction cost of bridge.
Provided by the invention this for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, because installation, inspection, maintenance, the replacing of the first resiliency supported 3, the first dynamic damping device 4, the second resiliency supported 6, the second dynamic damping device 7, the 3rd resiliency supported 9 and the 3rd dynamic damping device 10 are convenient, good economy performance, can promote the use of other bridge types such as suspension bridge.
In addition, provided by the invention this for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, also can be called as a kind ofly for controlling system, equipment or the device of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, " structural system " is equal to " system, equipment or device " here.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is 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 modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. for controlling a structural system for cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, this cable stayed bridge has girder (1), bridge tower (2), auxiliary pier (5) and transition pier (8), it is characterized in that, this structural system comprises:
A plurality of first resiliency supported (3) of horizontally set and a plurality of the first dynamic damping devices (4) between girder (1) and bridge tower (2);
A plurality of second resiliency supported (6) of horizontally set and a plurality of the second dynamic damping devices (7) between girder (1) and auxiliary pier (5); And
A plurality of the 3rd resiliency supported (9) of horizontally set and a plurality of the 3rd dynamic damping devices (10) between girder (1) and transition pier (8).
2. according to claim 1 for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, it is characterized in that, described a plurality of the first resiliency supported (3), a plurality of the second resiliency supported (6), a plurality of the 3rd resiliency supported (9) are steel, marmem, rubber, polymer composite or this four kinds of elastic devices that combination of materials is made.
3. according to claim 1 for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, it is characterized in that, described a plurality of the first dynamic damping devices (4), a plurality of the second dynamic damping device (7) and a plurality of the 3rd dynamic damping device (10) are metal damper, polymer composite damper, frcition damper, viscous damper, viscoelastic damper or composite damper.
4. according to claim 1 for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, it is characterized in that, between the king-post of described girder (1) left and right sides and bridge tower (2), be laterally respectively provided with gap, the width B=0.5～2m in gap.
5. according to claim 4 for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, it is characterized in that, described a plurality of the first resiliency supported (3) are arranged in the gap between described girder (1) left and right sides and the king-post of bridge tower (2), the plurality of the first resiliency supported (3) provides horizontal elastic restraint to girder (1), but allows girder (1) longitudinally moving freely.
6. according to claim 1 for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, it is characterized in that, by described a plurality of the first resiliency supported (3) and described a plurality of the first dynamic damping device (4), control lateral displacement and the interior force-responsive of girder (1).
7. according to claim 1 for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, it is characterized in that, by a plurality of the second resiliency supported (6) at horizontally set between girder (1) and auxiliary pier (5) and a plurality of the second dynamic damping devices (7), control lateral displacement and the interior force-responsive of girder (1) and auxiliary pier (5).
8. according to claim 1 for controlling the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response, it is characterized in that, by a plurality of the 3rd resiliency supported (9) and a plurality of the 3rd dynamic damping devices (10) of horizontally set between girder (1) and transition pier (8), control lateral displacement and the interior force-responsive of girder (1) and transition pier (8).
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| CN201310027574.3A CN103966943B (en) | 2013-01-24 | 2013-01-24 | Control the structural system of cable-stayed bridge main-beam, auxiliary pier and transition pier transverse response |
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Cited By (8)
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| CN104452572A (en) * | 2014-12-09 | 2015-03-25 | 中交公路规划设计院有限公司 | Outer-side span stay cable-free stay bridge with horizontal stress performance improved |
| CN104652245A (en) * | 2014-11-05 | 2015-05-27 | 上海市政工程设计研究总院（集团）有限公司 | Longitudinal constraint method for cable-stayed bridges |
| CN105002823A (en) * | 2015-06-09 | 2015-10-28 | 吉林省银河水利水电新技术设计有限公司 | Method for resisting wind vibration of light large-span bridge surfaces by adopting damping cables |
| CN106049257A (en) * | 2016-08-02 | 2016-10-26 | 大连海事大学 | Longspan cable-stayed bridge aseismic structure provided with buckling restrained braces |
| CN108342975A (en) * | 2018-04-04 | 2018-07-31 | 中铁第四勘察设计院集团有限公司 | The arch of crossbeam holds Cable-Stayed Bridge Structure between a kind of no tower |
| 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 |
| CN113186800A (en) * | 2021-04-25 | 2021-07-30 | 中建七局第四建筑有限公司 | Damping control system for main beam of cable-stayed bridge |
| CN115948976A (en) * | 2022-12-19 | 2023-04-11 | 中交公路规划设计院有限公司 | Longitudinal combination toughness constraint system and method for large-span suspension bridge |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104652245A (en) * | 2014-11-05 | 2015-05-27 | 上海市政工程设计研究总院（集团）有限公司 | Longitudinal constraint method for cable-stayed bridges |
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| CN105002823A (en) * | 2015-06-09 | 2015-10-28 | 吉林省银河水利水电新技术设计有限公司 | Method for resisting wind vibration of light large-span bridge surfaces by adopting damping cables |
| CN105002823B (en) * | 2015-06-09 | 2016-08-17 | 吉林省银河水利水电新技术设计有限公司 | A kind of method using damping cable anti-light long-span bridge floor wind to shake |
| CN106049257A (en) * | 2016-08-02 | 2016-10-26 | 大连海事大学 | Longspan cable-stayed bridge aseismic structure provided with buckling restrained braces |
| CN108342975A (en) * | 2018-04-04 | 2018-07-31 | 中铁第四勘察设计院集团有限公司 | The arch of crossbeam holds Cable-Stayed Bridge Structure between a kind of no tower |
| 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 |
| CN113186800A (en) * | 2021-04-25 | 2021-07-30 | 中建七局第四建筑有限公司 | Damping control system for main beam of cable-stayed bridge |
| CN115948976A (en) * | 2022-12-19 | 2023-04-11 | 中交公路规划设计院有限公司 | Longitudinal combination toughness constraint system and method for large-span suspension bridge |
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