CN210122680U - Circular cable-stayed bridge structure - Google Patents
Circular cable-stayed bridge structure Download PDFInfo
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- CN210122680U CN210122680U CN201920576452.2U CN201920576452U CN210122680U CN 210122680 U CN210122680 U CN 210122680U CN 201920576452 U CN201920576452 U CN 201920576452U CN 210122680 U CN210122680 U CN 210122680U
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Abstract
The utility model relates to a circular cable-stay bridge structure, including the vertical roof beam body that the level set up, the vertical cable-stay cable that sets up between the vertical cable-stay tower that sets up in vertical roof beam body middle part and cable-stay tower both sides and the vertical roof beam body, vertical roof beam body periphery is provided with the annular roof beam body of horizontally circle, is provided with horizontal cable-stay between the annular roof beam body of circle and the cable-stay tower. The utility model discloses on the basis of original cable-stay bridge cable-stayed tower and pier, newly-increased one set of circular cable-stay bridge system, circular cable-stay bridge concreties with former "one" font cable-stay bridge crossing position, strengthens circular cable-stay bridge's stability, and the structure of involving in can effectively promote cable-stay bridge's service function, reinforcing traffic function, and the totality occupation space is few, and it is obvious to improve traffic efficiency, and the appearance is pleasing to the eye, and construction technology is ripe, and is simple and easy, is a bridge construction that has spreading value.
Description
Technical Field
The utility model belongs to the technical field of bridge structures building, concretely relates to circular cable-stay bridge structure.
Background
The cable-stayed bridge is a bridge with a main beam directly pulled on a bridge tower by a plurality of guys, and is a structural system formed by combining a pressure-bearing tower, the pulled guys and a bending-bearing beam body. It can reduce the bending moment in the beam body, reduce the building height, lighten the structural weight and save materials. The cable-stayed bridge mainly comprises a cable tower, a main beam and a stay cable.
The cable-stayed bridge has large span and beautiful shape and is widely applied to municipal traffic and various trunk traffic. The common cable-stayed bridge is in a straight one-way traffic mode, and the functions of the common cable-stayed bridge cannot meet the use requirements when the multi-directional intercommunication is needed in a complex terrain or urban interchange area.
Disclosure of Invention
The utility model aims at providing a circular cable-stay bridge structure has extensive usage space at complicated topography and city grade separation system.
The utility model discloses the technical scheme who adopts does:
the utility model provides a circular cable-stay bridge structure, includes the vertical roof beam body that the level set up, the vertical cable-stayed cable that sets up in the vertical cable-stayed tower in middle part of the vertical roof beam body and cable-stayed tower both sides and the vertical roof beam body between set up, its characterized in that:
the periphery of the longitudinal beam body is provided with a horizontal annular beam body, and a transverse stay cable is arranged between the annular beam body and the cable tower.
The circular beam body and the longitudinal beam body are in the same horizontal plane or arranged in a high-low mode, and the intersection positions are combined into a whole.
The cable tower body is provided with a plurality of longitudinal cable channels from top to bottom, a plurality of longitudinal stay cables respectively pass through the longitudinal cable channels, and two ends of the longitudinal stay cables are anchored on the longitudinal beam body.
Transverse stay cable channels are arranged at intervals of the longitudinal stay cable channels of the cable tower body, a plurality of transverse stay cables penetrate through the transverse stay cable channels, and two ends of each transverse stay cable are anchored on the annular beam body.
The transverse stay cables are provided with a plurality of channels, one channel is positioned in the cable tower surface vertical to the longitudinal beam body, and the rest plurality of channels are symmetrically distributed on two sides of the cable tower surface vertical to the longitudinal beam body.
The utility model has the advantages of it is following:
(1) realize multi-directional intercommunication
The annular bridge part forms a circular channel, so that the interchange function is enhanced, the one-way traffic of the original one-line cable-stayed bridge is changed into one-line traffic and annular traffic, and the traffic function is increased.
(2) Small occupied space
The circular cable-stayed bridge and the ground supporting structure are only a cable tower and a pier foundation, and straight-line and annular multidirectional traffic is realized. In a common multi-layer overpass system, piers below a bridge are dense, and the space below the bridge is small. The circular cable-stayed bridge saves space under the bridge and has wide application.
(3) Saves the total construction cost
The circular cable-stayed bridge does not need to be additionally provided with a bridge pier, and only the unidirectional oblique pull bridge cable tower and the bridge pier foundation are locally reinforced. Compared with the common multilayer overpass, the lower bridge pier is reduced. On the basis of increasing the minimum project amount, the use function is effectively improved, and the aim of reducing the total construction cost of the project is fulfilled.
(4) Has beautiful appearance
The circular cable-stayed bridge is of a three-dimensional structure and attractive in appearance, the whole structure is like an umbrella, lamp belts and the like can be decorated on the stay cables and the tower, and the landscape effect of the traffic node can be effectively improved.
(5) Reasonable stress
A circular cable-stayed bridge is reinforced based on a common straight one-way cable-stayed bridge. The stress of the newly added annular cable-stayed bridge is the same as the stress principle of the original linear one-way cable-stayed bridge, and basically does not interfere with the original longitudinal linear cable-stayed bridge. The common linear cable-stayed bridge has been built for many years, and the novel circular cable-stayed bridge is convenient to bear and construct.
(6) Improve the traffic efficiency
The novel circular cable-stayed bridge is additionally arranged in the center of a crossroad or the center of a roundabout of an urban road, the circular beam body and the original I-shaped beam body are arranged on the same layer or up and down, and interchange can be realized on the bridge. The structure saves a large amount of ground space, the ground can be used for traffic at the same time, and multi-layer interchange is realized. The round cable-stayed bridge is connected with stairs at required positions around the round cable-stayed bridge, and the function of a pedestrian overpass can be achieved. In the scenic region, the round part and the original I-shaped bridge can be at the same height, and can be used as a sightseeing platform to play the roles of sightseeing and traffic diversion.
(7) Strong adaptability of self-anchoring system
The circular cable-stayed bridge integrally presents a self-anchoring system, an external stress point does not need to be applied outside the structure, and the adaptability is strong.
Drawings
Fig. 1 is a schematic view of the utility model with the transverse stay cable removed.
Fig. 2 is a schematic view of the utility model with the longitudinal stay cables removed.
Fig. 3 is a schematic view of the present invention.
Fig. 4 is a top view of the cable tower of the present invention.
In the figure, 1-longitudinal stay cable pore channel, 2-longitudinal stay cable, 3-cable tower, 4-longitudinal beam body, 5-circular beam body, 6-pier foundation, 7-transverse stay cable pore channel and 8-transverse stay cable.
h-is the height difference between the longitudinal beam body and the circular beam body.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The utility model relates to a circular cable-stay bridge structure utilizes ordinary cable-stay bridge's atress system principle, on the basis of original cable-stay bridge cable-stayed tower and pier, newly-increased one set of circular cable-stay bridge system, circular cable-stay bridge concreties with the crossing position of former "one" font cable-stay bridge, strengthens circular cable-stay bridge's stability.
The concrete structure is as follows:
the structure includes the vertical roof beam body 4 that the level set up, the vertical cable-stayed cable 2 that sets up between 3 both sides of cable-stayed tower and the vertical roof beam body 4 of the vertical cable-stayed tower 3 and the vertical roof beam body 4 in the middle part of the vertical roof beam body, its characterized in that: the periphery of the longitudinal beam body 4 is provided with a horizontal circular ring-shaped beam body 5, and a transverse stay cable 8 is arranged between the circular ring-shaped beam body 5 and the cable tower 3. The circular ring-shaped beam body 5 and the longitudinal beam body 4 are integrated at the intersection in the same horizontal plane.
A plurality of longitudinal cable channels 1 are arranged on the tower body of the cable tower 3 from top to bottom, a plurality of longitudinal stay cables 2 respectively penetrate through the longitudinal cable channels 1, and two ends of each longitudinal stay cable are anchored on the longitudinal beam body 4. Transverse cable channels 7 are arranged at intervals of the longitudinal cable channels 1 of the tower body of the cable tower 3, a plurality of transverse stay cables 8 penetrate through the transverse cable channels 7, and two ends of each transverse stay cable are anchored on the annular beam body 5. The transverse stay cables 8 are provided with a plurality of channels, one channel is positioned in the plane of the cable tower 3 vertical to the longitudinal beam body 4, and the rest plurality of channels are symmetrically distributed on two sides of the plane of the cable tower 3 vertical to the longitudinal beam body 4.
The construction process comprises the following steps:
firstly, a pier foundation is constructed, and an open cut foundation or a pile foundation can be constructed according to the type of the foundation.
And binding a pier main tower steel bar formwork after the foundation construction is finished, and constructing a pier main tower. And the reinforcing steel bars are reserved at the crossed positions of the main tower and the beam, so that the later construction of the beam body is facilitated. And reserving a longitudinal stay cable and a transverse stay cable pore channel at the anchor cable position at the upper part of the cable tower.
Firstly, a steel cable of a straight cable-stayed bridge is installed on a cable tower.
Firstly, constructing a straight cable-stayed bridge body, and constructing visible ground height by adopting bracket construction or cantilever construction. The construction adaptability of the cantilever is strong. During cantilever construction, the root part connected with the cable tower by the beam body is constructed to the far end part of the beam body section by section. When the beam body extends to the two ends, the stay cable and the beam body are anchored. When the linear cable-stayed bridge body is constructed, reinforcing steel bars need to be reserved at the intersection position of the linear beam body and the circular beam body so as to facilitate the consolidation of the circular beam body and the linear beam body.
And then a steel cable of the annular cable-stayed bridge is arranged on the cable tower.
The annular beam body is firstly constructed on the fixed part of the annular beam and the I-shaped beam body, the construction can adopt the construction of a bracket or a guyed hanging basket, the construction is symmetrically carried out to the center of the annular section by section, and meanwhile, the stay cables and the annular beam body are anchored section by section until the annular is closed. The circular beam body is made of steel structures as much as possible, so that the bearing capacity is high, and the beam body is light in weight.
The utility model discloses can effectively promote cable-stay bridge's service function, strengthen traffic function, the totality occupation space is few, and it is obvious to improve traffic efficiency, and the appearance is pleasing to the eye, and construction technology is ripe, and is simple and easy, is a bridge construction that has spreading value.
The content of the present invention is not limited to the examples, and any equivalent transformation adopted by the technical solution of the present invention is covered by the claims of the present invention by those skilled in the art through reading the present invention.
Claims (5)
1. The utility model provides a circular cable-stay bridge structure, includes vertical roof beam body (4), the vertical cable-stay (2) that set up in cable-stay (3) and cable-stay (3) both sides that set up between the vertical roof beam body (4) in vertical setting in vertical roof beam body (4) middle part of level setting, its characterized in that:
the periphery of the longitudinal beam body (4) is provided with a horizontal circular ring-shaped beam body (5), and a transverse stay cable (8) is arranged between the circular ring-shaped beam body (5) and the cable tower (3).
2. A circular cable-stayed bridge structure according to claim 1, characterized in that:
the circular beam body (5) and the longitudinal beam body (4) are in the same horizontal plane or arranged in a high-low mode, and the intersection positions are combined into a whole.
3. A circular cable-stayed bridge structure according to claim 1, characterized in that:
a plurality of longitudinal cable channels (1) are arranged on the cable tower (3) from top to bottom, a plurality of longitudinal stay cables (2) respectively penetrate through the longitudinal cable channels (1), and two ends of the longitudinal stay cables are anchored on the longitudinal beam body (4).
4. A circular cable-stayed bridge structure according to claim 3, characterized in that:
transverse cable channels (7) are arranged at intervals of the longitudinal cable channels (1) of the tower body of the cable tower (3), a plurality of transverse stay cables (8) penetrate through the transverse cable channels (7), and two ends of each transverse stay cable are anchored to the annular beam body (5).
5. A circular cable-stayed bridge structure according to claim 4, characterized in that:
the transverse stay cables (8) are provided with a plurality of channels, one channel is positioned in the plane where the cable tower (3) vertical to the longitudinal beam body (4) is positioned, and the rest plurality of channels are symmetrically distributed on two sides of the plane where the cable tower (3) vertical to the longitudinal beam body (4) is positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576452.2U CN210122680U (en) | 2019-04-25 | 2019-04-25 | Circular cable-stayed bridge structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576452.2U CN210122680U (en) | 2019-04-25 | 2019-04-25 | Circular cable-stayed bridge structure |
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| CN210122680U true CN210122680U (en) | 2020-03-03 |
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| CN201920576452.2U Active CN210122680U (en) | 2019-04-25 | 2019-04-25 | Circular cable-stayed bridge structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972496A (en) * | 2019-04-25 | 2019-07-05 | 中铁第一勘察设计院集团有限公司 | Round Cable-Stayed Bridge Structure |
| CN114753236A (en) * | 2022-04-15 | 2022-07-15 | 东南大学 | Multidirectional rotational symmetry cable-stayed bridge structure with central roundabout and construction method |
-
2019
- 2019-04-25 CN CN201920576452.2U patent/CN210122680U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972496A (en) * | 2019-04-25 | 2019-07-05 | 中铁第一勘察设计院集团有限公司 | Round Cable-Stayed Bridge Structure |
| CN114753236A (en) * | 2022-04-15 | 2022-07-15 | 东南大学 | Multidirectional rotational symmetry cable-stayed bridge structure with central roundabout and construction method |
| CN114753236B (en) * | 2022-04-15 | 2024-01-30 | 东南大学 | Multidirectional rotationally symmetrical cable-stayed bridge structure with central rotary island and construction method |
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