CN210117641U - Cross-shaped bidirectional cable-stayed bridge structure - Google Patents
Cross-shaped bidirectional cable-stayed bridge structure Download PDFInfo
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- CN210117641U CN210117641U CN201920576508.4U CN201920576508U CN210117641U CN 210117641 U CN210117641 U CN 210117641U CN 201920576508 U CN201920576508 U CN 201920576508U CN 210117641 U CN210117641 U CN 210117641U
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Abstract
The utility model relates to a two-way cable-stay bridge structure of cross, including the vertical roof beam body and the horizontal roof beam body of mutually perpendicular, the vertical cable-stayed tower that is provided with of the two crossing department is provided with vertical suspension cable between cable-stayed tower and the vertical roof beam body, is provided with horizontal suspension cable between cable-stayed tower and the horizontal roof beam body. The utility model discloses on the basis that remains original ordinary "one-way cable-stay bridge of font, set up the horizontal cable hole of vertically with the vertical certain distance department in former cable-stay bridge vertical cable hole on the cable-stayed tower, pass newly-increased cable, the anchor of cable lower part is on newly-increased roof beam body, can effectively promote cable-stay bridge's service function, realize two-way traffic, the totality occupation space is few, it is obvious to improve traffic efficiency, the appearance is pleasing to the eye, construction technology is mature, 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 two-way cable-stay bridge structure of cross.
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 two-way cable-stay bridge structure of cross 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 two-way cable-stay bridge structure of cross which characterized in that:
the cable tower comprises a longitudinal beam body and a transverse beam body which are perpendicular to each other, wherein a cable tower is vertically arranged at the intersection of the longitudinal beam body and the transverse beam body, a longitudinal stay cable is arranged between the cable tower and the longitudinal beam body, and a transverse stay cable is arranged between the cable tower and the transverse beam body.
And a pier foundation is arranged at the bottom of the cable tower.
The longitudinal stay cable passes through a longitudinal stay cable pore channel arranged on the cable tower body, and two ends of the longitudinal stay cable are anchored on the longitudinal beam body;
the transverse stay cable passes through a transverse stay cable pore channel arranged on the cable tower body, and two ends of the transverse stay cable are anchored on the transverse beam body.
The longitudinal cable pore canal and the transverse cable pore canal are arranged on the cable tower body at intervals from top to bottom.
The longitudinal beam body and the transverse beam body are positioned on the same horizontal plane and are mutually vertical to form a cross-shaped whole.
The longitudinal beam bodies and the transverse beam bodies are positioned on different horizontal planes, are arranged downwards and are vertical to each other.
The utility model has the advantages of it is following:
(1) realize cross-shaped bidirectional traffic
The existing cable-stayed bridge is limited by a bridge type and can only carry out traffic in a single direction. The novel cross-shaped cable-stayed bridge is equivalent to the superposition of a longitudinal cable-stayed bridge and a transverse cable-stayed bridge, and a longitudinal and transverse cross-shaped traffic system is formed.
(2) Small occupied space
The cross cable-stayed bridge and the ground supporting structure are only a cable tower and a pier foundation, and cross bidirectional 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 cross cable-stayed bridge saves space under the bridge and has wide application.
(3) Saves the total construction cost
The cross cable-stayed bridge only needs to locally strengthen the cable tower of the unidirectional inclined pull bridge and the bridge pier foundation without additionally arranging a bridge pier. 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 cross cable-stayed bridge is of a three-dimensional structure and attractive in appearance, lamp belts and the like can be decorated on the stay cables and the towers, and the landscape effect of the traffic nodes can be effectively improved.
(5) Reasonable stress
The cross cable-stayed bridge is reinforced based on a common straight one-way cable-stayed bridge. The stress of the transversely newly added cable-stayed bridge is the same as the stress principle of the original linear one-way cable-stayed bridge, and the transversely newly added cable-stayed bridge is basically not interfered with the original longitudinal linear cable-stayed bridge. The common linear cable-stayed bridge has been built for many years, and the novel cross-shaped bidirectional cable-stayed bridge is convenient to stress and construct.
(6) Short construction period
The cross cable-stayed bridge has a pier foundation and a cable tower in common for the longitudinal and transverse cable-stayed bridges, and after the construction and installation of the cable tower and a stay cable are finished, the construction of a beam body can be simultaneously carried out in two directions. The construction period is basically the same as that of a common cable-stayed bridge. When the urban multilayer overpass is constructed, because the number of the piers is large, the construction is slow, and the cross cable-stayed bridge is provided with only one main pier, the interference of the construction of other piers and girder erection is saved, and the construction period is greatly shortened on the basis of meeting the same traffic function.
(7) Improve the traffic efficiency
The cross cable-stayed bridge realizes cross intercommunication, and the height of the longitudinal and transverse bridge floors can be adjusted to realize the cross overpass. The cross cable-stayed bridge effectively increases the under-bridge clearance and can simultaneously carry out ground traffic under the bridge. The multi-layer interchange system can realize the shunting of fast and slow lanes. The cross cable-stayed bridge is additionally arranged at the crossroad of the urban road and the center of the rotary table of the roundabout, so that the occupied space is small, and the traffic efficiency is improved exponentially.
(7) Strong adaptability of self-anchoring system
The cross 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 structure diagram of the longitudinal cable-stayed bridge of the utility model.
Fig. 2 is the structure diagram of the transverse cable-stayed bridge of the utility model.
Fig. 3 is a structural diagram of the present invention.
Fig. 4 is a longitudinal horizontal view of the present invention.
In the figure, 1-longitudinal cable duct, 2-longitudinal stay cable, 3-cable tower, 4-longitudinal beam, 5-bridge pier foundation, 6-transverse cable duct, 7-transverse stay cable, 8-transverse beam and h-interchange net height.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The utility model relates to a two-way cable-stay bridge structure of cross is on the basis of keeping the one-way cable-stay bridge of original ordinary "one" font, offers the horizontal cable hole of vertically certain distance department in former cable-stay bridge vertical cable hole on the cable-stayed tower, passes newly-increased cable. A new beam body is additionally arranged in the vertical direction, namely the transverse direction, of the original common straight cable-stayed bridge. And the newly added beam body is fixedly connected with the cable tower connecting part, so that the bearing and supporting effect of the cable tower on the newly added beam body is ensured. And the newly added guy cable is connected and anchored with the newly added beam body to form a transverse cable-stayed bridge system. The newly added transverse cable-stayed bridge and the original longitudinal cable-stayed bridge jointly form a cross-shaped bidirectional cable-stayed bridge system.
The concrete structure is as follows:
the cable tower comprises a longitudinal beam body 4 and a transverse beam body 8 which are perpendicular to each other, wherein a cable tower 3 is vertically arranged at the intersection of the longitudinal beam body 4 and the transverse beam body 8, a longitudinal stay cable 2 is arranged between the cable tower 3 and the longitudinal beam body 4, and a transverse stay cable 7 is arranged between the cable tower 3 and the transverse beam body 8. The bottom of the cable tower 3 is provided with a pier foundation 5.
The longitudinal stayed cable 2 passes through a longitudinal cable duct 1 arranged on the body of the cable tower 3, and two ends of the longitudinal stayed cable are anchored on the longitudinal beam body 4; the transverse stay cable 7 passes through a transverse stay cable pore passage 6 arranged on the body of the cable tower 3, and two ends of the transverse stay cable are anchored on a transverse beam body 8. The longitudinal cable duct 1 and the transverse cable duct 6 are arranged on the tower body of the cable tower 3 from top to bottom at intervals.
The longitudinal and transverse cable-stayed bridge can be arranged at three-dimensional traffic with different heights according to the requirement, or arranged at the same height and crossed traffic on the bridge. The longitudinal beam body 4 and the transverse beam body 8 are positioned on the same horizontal plane and are mutually vertical to form a cross-shaped whole. Or the longitudinal beam body 4 and the transverse beam body 8 are positioned on different horizontal planes, are staggered up and down and are vertical to each other.
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.
And a cable stayed steel cable is arranged on the cable tower.
The visible ground height of the beam construction adopts support 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. The longitudinal beam body and the transverse beam body can be constructed simultaneously, the longitudinal beam body and the transverse beam body do not interfere with each other when constructed towards a far end except for the root part connected with the cable tower, and the construction is efficient and simple until the construction of the whole cable-stayed bridge is completed.
The utility model relates to a structure can effectively promote cable-stay bridge's service function, realizes two-way traffic, 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, has the bridge construction of 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 (6)
1. The utility model provides a two-way cable-stay bridge structure of cross which characterized in that:
the cable tower comprises a longitudinal beam body (4) and a transverse beam body (8) which are perpendicular to each other, wherein a cable tower (3) is vertically arranged at the intersection of the longitudinal beam body and the transverse beam body, a longitudinal stay cable (2) is arranged between the cable tower (3) and the longitudinal beam body (4), and a transverse stay cable (7) is arranged between the cable tower (3) and the transverse beam body (8).
2. A cross-shaped bidirectional cable-stayed bridge structure according to claim 1, characterized in that:
the bottom of the cable tower (3) is provided with a pier foundation (5).
3. A cross-shaped bidirectional cable-stayed bridge structure according to claim 1, characterized in that:
the longitudinal stay cable (2) passes through a longitudinal stay cable pore passage (1) arranged on the body of the cable tower (3), and two ends of the longitudinal stay cable are anchored on the longitudinal beam body (4);
the transverse stay cable (7) passes through a transverse stay cable pore passage (6) arranged on the body of the cable tower (3), and two ends of the transverse stay cable are anchored on the transverse beam body (8).
4. A cross-shaped bidirectional cable-stayed bridge structure according to claim 1, characterized in that:
the longitudinal cable pore canal (1) and the transverse cable pore canal (6) are arranged on the tower body of the cable tower (3) at intervals from top to bottom.
5. A cross-shaped bidirectional cable-stayed bridge structure according to claim 1, characterized in that:
the longitudinal beam body (4) and the transverse beam body (8) are positioned on the same horizontal plane and are mutually vertical to form a cross-shaped whole.
6. A cross-shaped bidirectional cable-stayed bridge structure according to claim 1, characterized in that:
the longitudinal beam body (4) and the transverse beam body (8) are positioned on different horizontal planes, are arranged downwards and are vertical to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576508.4U CN210117641U (en) | 2019-04-25 | 2019-04-25 | Cross-shaped bidirectional cable-stayed bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920576508.4U CN210117641U (en) | 2019-04-25 | 2019-04-25 | Cross-shaped bidirectional cable-stayed bridge structure |
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| Publication Number | Publication Date |
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| CN210117641U true CN210117641U (en) | 2020-02-28 |
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| CN201920576508.4U Active CN210117641U (en) | 2019-04-25 | 2019-04-25 | Cross-shaped bidirectional cable-stayed bridge structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972495A (en) * | 2019-04-25 | 2019-07-05 | 中铁第一勘察设计院集团有限公司 | The two-way Cable-Stayed Bridge Structure of cross |
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2019
- 2019-04-25 CN CN201920576508.4U patent/CN210117641U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972495A (en) * | 2019-04-25 | 2019-07-05 | 中铁第一勘察设计院集团有限公司 | The two-way Cable-Stayed Bridge Structure of cross |
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