CN113174851B - Cable-stayed bridge structure and construction method thereof - Google Patents
Cable-stayed bridge structure and construction method thereof Download PDFInfo
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- CN113174851B CN113174851B CN202110445996.7A CN202110445996A CN113174851B CN 113174851 B CN113174851 B CN 113174851B CN 202110445996 A CN202110445996 A CN 202110445996A CN 113174851 B CN113174851 B CN 113174851B
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- cable
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- bridge structure
- stayed bridge
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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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- 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of cable-stayed bridges, and provides a cable-stayed bridge structure and a construction method thereof. According to the cable-stayed bridge structure disclosed by the embodiment of the invention, the beam seat is arranged between the lower cross beam and the main beam, so that the friction between the main beam and the lower cross beam is changed into rolling friction, the friction is reduced, and the abrasion between the main beam and the lower cross beam is reduced; specifically, when the main beam swings, the first roller and the second roller roll in the roller groove, and the damping rod corrects the positions of the first roller and the second roller.
Description
Technical Field
The invention relates to the technical field of cable-stayed bridges, in particular to a cable-stayed bridge structure and a construction method thereof.
Background
The vibration reduction and anti-seismic function between the cable-stayed bridge connecting cable tower and the main beam is proved by deeper theoretical demonstration and practice at home and abroad, a damper is generally adopted between the cable tower and the main beam, the swing amplitude of the main beam is buffered when the main beam swings transversely, but the friction of the contact part between the main beam and a tower seat is damaged when the main beam swings.
Disclosure of Invention
The embodiment of the invention provides a cable-stayed bridge structure and a construction method thereof. The specific technical scheme is as follows:
the embodiment of the invention provides a cable-stayed bridge structure, which comprises a cable tower, a bearing platform and a pile foundation which are sequentially connected from top to bottom, wherein the cable tower comprises an upper tower column, a middle tower column, a lower tower column and a tower base which are sequentially connected from top to bottom; the main beam and the lower cross beam are connected through a beam seat, the beam seat comprises a first roller column and a second roller column which are arranged in parallel, and damping rods are respectively connected between the end parts of the first roller column and the end parts of the first roller column on the same side.
Furthermore, a roller groove is formed in the lower cross beam, and the first roller are located in the roller groove.
Furthermore, the middle tower column is gradually far away from the lower part, the lower tower column is gradually closed to the lower part, and the middle tower column and the lower cross beam form a triangular structure.
Further, still include the side pier, the side pier is connected with the girder.
Furthermore, the damping rod comprises a cylinder barrel with one open end and one closed end, a piston rod with one end located in the cylinder barrel, an oil piston and an air piston which are sequentially connected onto the piston rod, an oil cavity and an air cavity are arranged in the oil cylinder, the oil piston is located in the oil cavity, the air piston is located in the air cavity, oil is filled in the oil cavity, an oil hole is formed in the oil piston, and an air hole is formed in the air piston.
Furthermore, an end cover is arranged at the opening end of the cylinder barrel, the piston rod penetrates through the end cover, a first spring and a second spring are sleeved on the piston rod, the first spring is extruded between the air cavity and the baffle, and the second spring is extruded between the baffle and the end cover.
Furthermore, a protective cylinder is arranged on the piston rod, and a sealing ring is arranged between the protective cylinder and the cylinder barrel.
Furthermore, the closed end of the cylinder barrel is provided with a first connecting lug, and the end part of the piston rod, which is positioned outside the cylinder barrel, is provided with a second connecting lug.
Further, the first connecting lug and the second connecting lug are provided with ball bearings.
The embodiment of the invention provides a construction method of a cable-stayed bridge structure, which comprises the following steps
Building the cable tower, the bearing platform, the pile foundation, the side pier, the main beam and the beam seat;
the bearing platform is fixedly connected to the pile foundation, the cable tower is fixedly connected to the bearing platform, and the cable tower is fixedly connected to the bearing platform;
the beam seat is arranged on the cable tower;
the main beam is arranged on the beam seat and the side pier;
and a stay cable is connected between the cable tower and the main beam.
According to the cable-stayed bridge structure disclosed by the embodiment of the invention, the beam seat is arranged between the lower cross beam and the main beam, so that the friction between the main beam and the lower cross beam is changed into rolling friction, the friction is reduced, and the abrasion between the main beam and the lower cross beam is reduced; specifically, when the main beam swings, the first roller and the second roller roll in the roller groove, and the damping rod corrects the positions of the first roller and the second roller.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic view of a cable-stayed bridge structure according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of beam seat connection according to an embodiment of the present invention.
FIG. 3 is a schematic view of a dampening bar according to an embodiment of the present invention.
Wherein, 1, bearing platform; 2. a cable tower; 21. mounting the tower column; 22. a middle tower column; 23. lowering the tower column; 24. a tower base; 25. a lower cross beam; 251. a roller groove; 3. a pile foundation; 4. a main beam; 51. a first roller; 52. a second roller; 53. a damping rod; 501. an oil chamber; 502. an air chamber; 503. oil liquid; 531. a cylinder barrel; 532. a piston rod; 533. an oil piston; 534. an air piston; 535. an oil passing hole; 536. air passing holes; 538. an end cap; 539. a first spring; 540. a second spring; 541. protecting the cylinder; 542. a first connecting lug; 543. a second engaging lug; 544. a ball bearing; 545. a seal ring; 6. and (4) stay cables.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The terms "first" or "second", etc. are used merely to distinguish the same type of component or device, and do not represent limitations.
As shown in fig. 1, the cable-stayed bridge structure of the embodiment of the invention comprises a cable tower 2, a bearing platform 1 and a pile foundation 3 which are sequentially connected from top to bottom, wherein the cable tower 1 comprises an upper tower column 21, a middle tower column 22, a lower tower column 23 and a tower base 24 which are sequentially connected from top to bottom, a lower cross beam 25 is arranged on the lower tower column 23, a main beam 4 is installed on the lower cross beam 25, and a stay cable 6 is connected between the upper tower column 21 and the main beam 4; the main beam 4 is connected with the lower beam 25 through a beam seat 8, the beam seat 5 comprises a first roller 51 and a second roller 52 which are arranged in parallel, and damping rods 53 are respectively connected between the end parts of the first roller 11 and the first roller 12 on the same side.
Wherein, the lower beam 25 is provided with a roller groove 251, and the first roller 11 and the first roller 12 are located in the roller groove 251.
Wherein, well pylon 22 is keeping away from downwards gradually, and lower pylon 23 draws close gradually downwards, and well pylon 22 constitutes the triangle-shaped structure with lower beam 25.
Wherein, still include the side pier, the side pier is connected with the girder.
The damping rod 53 comprises a cylinder 531 with an opening at one end and a closed end, a piston rod 532 with one end located in the cylinder, an oil piston 533 and an air piston 534 sequentially connected to the piston rod 532, wherein the oil cylinder 531 is internally provided with an oil cavity 501 and an air cavity 502, the oil piston 533 is located in the oil cavity 501, the air piston 534 is located in the air cavity 502, the oil cavity 501 is filled with oil 503, the oil piston 533 is provided with an oil passing hole 535, and the air piston 534 is provided with an air passing hole 536.
The piston rod 532 is provided with a baffle 537, the open end of the cylinder 531 is provided with an end cover 538, the piston rod 532 penetrates through the end cover, the piston rod 532 is sleeved with a first spring 539 and a second spring 540, the first spring 539 is extruded between the air chamber 501 and the baffle 537, and the second spring 540 is extruded between the baffle 537 and the end cover 538.
Wherein, a protective tube 541 is arranged on the piston rod 532, and a sealing ring 545 is arranged between the protective tube 541 and the cylinder 531.
The closed end of the cylinder 531 is provided with a first engaging lug 542, and the end of the piston rod 532 located outside the cylinder 531 is provided with a second engaging lug 543.
The first engaging lug 542 and the second engaging lug 543 are provided with ball bearings 544.
The cable-stayed bridge of the cable-stayed bridge structure is a three-span double-tower double-cable-plane continuous semi-floating system. The foundation pile adopts 24 drilled piles with the diameter of 2.5 m. The main beam is a steel and concrete superposed beam, and the stay cable is a hot-extruded polyethylene steel wire stay cable.
The embodiment of the invention provides a construction method of a cable-stayed bridge structure, which comprises the following steps
Building a cable tower, a bearing platform, a pile foundation, a side pier, a main beam and a beam seat;
the bearing platform is fixedly connected to the pile foundation, the cable tower is fixedly connected to the bearing platform, and the cable tower is fixedly connected to the bearing platform;
the beam seat is arranged on the cable tower;
the main beam is arranged on the beam seat and the side pier;
and a stay cable is connected between the cable tower and the main beam.
It should be understood that the mounting between the structures in the embodiments of the present invention may refer to welding, bolting, screwing, scarfing, and bonding; the connection between the pipes may refer to communication; the connection between the appliances may refer to an electrical connection. The invention is not limited to the precise arrangements that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (9)
1. A cable-stayed bridge structure is characterized by comprising a cable tower, a bearing platform and a pile foundation which are sequentially connected from top to bottom, wherein the cable tower comprises an upper tower column, a middle tower column, a lower tower column and a tower base which are sequentially connected from top to bottom; the main beam and the lower cross beam are connected through a beam seat, the beam seat comprises a first roller column and a first roller column which are arranged in parallel, and a damping rod is connected between the ends of the first roller column and the second roller column on the same side;
the lower cross beam is provided with a roller groove, and the first roller are positioned in the roller groove.
2. A cable-stayed bridge structure according to claim 1, wherein the middle tower is gradually far away downwards, the lower tower is gradually close downwards, and the middle tower and the lower cross beam form a triangular structure.
3. A cable-stayed bridge structure according to claim 1, further comprising side piers, wherein the side piers are connected with the main beam.
4. A cable-stayed bridge structure according to claim 3, wherein the damping rod comprises a cylinder with an open end and a closed end, a piston rod with one end located in the cylinder, and an oil piston and an air piston which are sequentially connected to the piston rod, wherein the cylinder is provided with an oil cavity and an air cavity, the oil piston is located in the oil cavity, the air piston is located in the air cavity, the oil cavity is filled with oil, the oil piston is provided with an oil hole, and the air piston is provided with an air hole.
5. The cable-stayed bridge structure according to claim 4, wherein a baffle is arranged on the piston rod, an end cover is arranged at the opening end of the cylinder barrel, the piston rod penetrates through the end cover, a first spring and a second spring are sleeved on the piston rod, the first spring is extruded between the air cavity and the baffle, and the second spring is extruded between the baffle and the end cover.
6. A cable-stayed bridge structure according to claim 5, characterized in that a protective cylinder is arranged on the piston rod, and a sealing ring is arranged between the protective cylinder and the cylinder barrel.
7. A cable-stayed bridge structure according to claim 6, characterized in that the closed end of the cylinder barrel is provided with a first connecting lug, and the end of the piston rod positioned outside the cylinder barrel is provided with a second connecting lug.
8. A cable-stayed bridge structure according to claim 7, characterized in that the first and second connection lugs are provided with ball bearings.
9. The construction method of a cable-stayed bridge structure according to claim 8, characterized by comprising the steps of constructing the cable towers, the bearing platforms, the pile foundations, the side piers, the main beams and the beam seats;
the bearing platform is fixedly connected to the pile foundation, and the cable tower is fixedly connected to the bearing platform;
the beam seat is arranged on the cable tower;
the main beam is arranged on the beam seat and the side pier;
and a stay cable is connected between the cable tower and the main beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445996.7A CN113174851B (en) | 2021-04-25 | 2021-04-25 | Cable-stayed bridge structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445996.7A CN113174851B (en) | 2021-04-25 | 2021-04-25 | Cable-stayed bridge structure and construction method thereof |
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| Publication Number | Publication Date |
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| CN113174851A CN113174851A (en) | 2021-07-27 |
| CN113174851B true CN113174851B (en) | 2023-01-10 |
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| CN202110445996.7A Active CN113174851B (en) | 2021-04-25 | 2021-04-25 | Cable-stayed bridge structure and construction method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100647523B1 (en) * | 2006-08-19 | 2006-11-29 | 주식회사 도화종합기술공사 | Fall down prevent apparatus for rail road bridge |
| 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 |
| CN206635653U (en) * | 2017-03-20 | 2017-11-14 | 无锡市弘谷振控技术有限公司 | Suspension cable damps adjustable oil gas Coupling Damping device |
| CN107795628A (en) * | 2016-09-05 | 2018-03-13 | 斯塔比卢斯有限责任公司 | Spring assembly |
| 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 |
| CN209429644U (en) * | 2018-12-26 | 2019-09-24 | 航天建筑设计研究院有限公司 | A kind of single-directional sliding support of band damping |
| CN110820540A (en) * | 2019-12-12 | 2020-02-21 | 中南大学 | Energy-consuming roller shock absorption and isolation device |
| CN210507098U (en) * | 2019-07-31 | 2020-05-12 | 天津城建集团有限公司 | H-shaped single-tower double-cable-surface prestressed concrete cable-stayed bridge main tower structure |
-
2021
- 2021-04-25 CN CN202110445996.7A patent/CN113174851B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100647523B1 (en) * | 2006-08-19 | 2006-11-29 | 주식회사 도화종합기술공사 | Fall down prevent apparatus for rail road bridge |
| 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 |
| CN107795628A (en) * | 2016-09-05 | 2018-03-13 | 斯塔比卢斯有限责任公司 | Spring assembly |
| CN206635653U (en) * | 2017-03-20 | 2017-11-14 | 无锡市弘谷振控技术有限公司 | Suspension cable damps adjustable oil gas Coupling Damping device |
| 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 |
| CN209429644U (en) * | 2018-12-26 | 2019-09-24 | 航天建筑设计研究院有限公司 | A kind of single-directional sliding support of band damping |
| CN210507098U (en) * | 2019-07-31 | 2020-05-12 | 天津城建集团有限公司 | H-shaped single-tower double-cable-surface prestressed concrete cable-stayed bridge main tower structure |
| CN110820540A (en) * | 2019-12-12 | 2020-02-21 | 中南大学 | Energy-consuming roller shock absorption and isolation device |
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| CN113174851A (en) | 2021-07-27 |
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