CN211522816U - Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge - Google Patents
Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge Download PDFInfo
- Publication number
- CN211522816U CN211522816U CN201921586272.9U CN201921586272U CN211522816U CN 211522816 U CN211522816 U CN 211522816U CN 201921586272 U CN201921586272 U CN 201921586272U CN 211522816 U CN211522816 U CN 211522816U
- Authority
- CN
- China
- Prior art keywords
- bridge
- tower
- span
- stiffening
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of concrete beam bridge construction, in particular to a side span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge, which comprises a bridge tower, a stay cable, a stiffening beam and two groups of side span piers positioned at two ends of the stiffening beam; each group of side span bridge piers comprises at least one side span bridge pier; the bridge tower is provided with a support, and the middle part of the stiffening beam is supported on the support; two ends of the stiffening beam are respectively supported on the two groups of side-span piers, and at least one side-span pier in each group of side-span piers is fixedly connected with the stiffening beam; and an inclined stay cable is arranged between the bridge tower and the stiffening beam, and two ends of the inclined stay cable are respectively connected with the bridge tower and the stiffening beam. The utility model discloses a set up support supporting stiffening beam combination on the boundary span pier concreties, the bridge tower and forms the boundary span concreties-tower roof beam and partly floats mixed system, improves the atress performance and the vertical remaining creep deformation of stiffening beam through the boundary span pier to the flexible constraint effect of stiffening beam, satisfies the railway driving requirement.
Description
Technical Field
The utility model belongs to the technical field of concrete beam bridge construction, concretely relates to sidespan concretion-tower roof beam semi-floating hybrid system concrete beam cable-stayed bridge.
Background
The concrete beam cable-stayed bridge is widely applied in bridge construction due to the advantages of convenient construction, low anticorrosion maintenance cost, low construction cost and the like, and the existing structural system mainly has four forms: 1. the tower pier is consolidated at the tower column, the tower beam is separated, and except that the stiffening beam is supported by a support at the side pier (and the auxiliary pier), the rest of the stiffening beam is a floating system which is suspended by a stay cable; 2. on the basis of the floating system, a semi-floating system of a vertical support supporting stiffening beam which moves in the longitudinal direction is arranged on a lower beam of the bridge tower; 3. the stiffening beam is supported by a support at the side pier (and the auxiliary pier), and the tower beam at the tower column is fixedly connected and provided with a fixed support and a fixed system on the stiffening beam; 4. the tower beam piers at the tower column are mutually consolidated, and the stiffening beam is provided with a rigid frame system supported by a support at the side pier (and the auxiliary pier). However, the concrete beam cable-stayed bridge always has the problem that the vertical residual creep deformation of the stiffening beam is large.
Because highway operation has no relevant requirements for vertical residual creep deformation of a stiffening beam of a concrete beam cable-stayed bridge, the concrete beam cable-stayed bridge on domestic and foreign roads is widely applied, such as Wuhan Yangtze river two-bridge. The domestic large-span railway concrete beam cable-stayed bridge is still in a development stage, the main bridge of the Oujiang grand bridge of the established Leqing harbor branch railway is a domestic first large-span concrete beam cable-stayed bridge which is a single-track railway concrete beam cable-stayed bridge with a main span of 300m, and the design speed is 120km/h, mainly because the vertical residual creep deformation of the stiffening girder is large, the later-stage train operation comfort level and safety can be influenced, therefore, the railway bridge has higher requirements on the vertical residual creep deformation of the stiffening girder and generally does not exceed 20mm, and the concrete beam cable-stayed bridge of the existing structural system is difficult to meet the requirements.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art existence, the utility model aims at providing a boundary span concreties-the semi-floating mixed system concrete beam cable-stay bridge of tower roof beam can solve the concrete beam cable-stay bridge and put more highly problem of the vertical residual creep deformation of stiffening beam, promotes the popularization and the application of concrete beam cable-stay bridge in the railway bridge construction field.
In order to achieve the purpose, the technical scheme of the utility model is an edge-span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge, which comprises a bridge tower, a stay cable, a stiffening beam and two groups of edge-span piers positioned at two ends of the stiffening beam; each group of side span bridge piers comprises at least one side span bridge pier; the bridge tower is provided with a support, and the middle part of the stiffening beam is supported on the support; two ends of the stiffening beam are respectively supported on two groups of side-span piers, and at least one side-span pier in each group of side-span piers is fixedly connected with the stiffening beam; and an inclined cable is arranged between the bridge tower and the stiffening beam, and two ends of the inclined cable are respectively connected with the bridge tower and the stiffening beam.
Furthermore, the bridge tower comprises a tower pier and tower columns, the tower columns are arranged on two sides of the stiffening beam, and the bottom of each tower column is fixedly connected with the tower pier; the support is fixed on the tower pier, and the top of the stay cable is connected with the top of the tower column.
Furthermore, the tower columns on two sides of the stiffening beam are provided with limiting blocks for limiting the stiffening beam to move along the transverse bridge direction.
Furthermore, there is at least one bridge tower, and both sides of each bridge tower in the transverse bridge direction are connected with the stiffening girder through a plurality of pairs of stay cables, and each pair of stay cables is respectively connected with both sides of the stiffening girder in the longitudinal bridge direction.
Furthermore, the stay cables positioned on the two sides of the transverse bridge of the bridge tower are symmetrically arranged relative to the bridge tower.
Furthermore, the stay cables which are positioned on the same side of the stiffening beam transverse bridge in the direction of the stiffening beam transverse bridge and positioned on the same side of the stiffening beam along the bridge are equidistantly arranged along the direction of the stiffening beam.
Furthermore, the stay cables which are positioned on the same side of the stiffening beam transverse bridge in the direction of the stiffening beam transverse bridge and on the same side of the stiffening beam transverse bridge in the direction of the stiffening beam transverse bridge are equidistantly arranged with the connecting points of the bridge tower along the height direction of the bridge tower.
Furthermore, each group of side-span piers comprises at least two side-span piers, one side-span pier close to the bridge tower is fixedly connected with the stiffening beam, one side-span pier far away from the bridge tower is provided with a support, and the stiffening beam is supported on the support of the side-span pier.
Further, the bridge tower is arranged on a tower pier foundation, and the side span pier is arranged on a side pier foundation.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model adopts the side-span bridge pier and the stiffening girder to be consolidated, and the bridge tower is provided with the support to support the stiffening girder to form a side-span consolidation-tower girder semi-floating mixed system, and the stress performance and the vertical residual creep deformation of the stiffening girder are improved by the flexible constraint action of the side-span bridge pier on the stiffening girder, thereby meeting the railway driving requirement;
(2) the utility model has the advantages that at least one side span pier in each side span pier of the side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge is consolidated with the stiffening girder, thereby saving the number of bridge supports, reducing the construction cost and the later period anticorrosion maintenance cost;
(3) the side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge has the advantages of large structural rigidity, convenient construction, low anticorrosion maintenance cost, low construction cost and the like;
(4) the utility model discloses a boundary span concreties-the semi-floating mixed system concrete beam cable-stay bridge of tower roof beam has further widened concrete beam cable-stay bridge's application scope, can effectively promote concrete beam cable-stay bridge in the popularization and the application of railway bridge construction field.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a side span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge provided by the embodiment of the utility model;
fig. 2 is a schematic cross-sectional view of a bridge tower of a side span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge according to an embodiment of the present invention;
in the figure: 1. the side span bridge comprises a side span bridge pier 11, a side pier foundation 2, a stiffening beam 3, a bridge tower 31, a tower column 32, a tower pier 33, a limiting block 34, a tower pier foundation 4, a stay cable 5 and a support.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1-2, an embodiment of the present invention provides an edge-span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge, which includes a bridge tower 3, a stay cable 4, a stiffening beam 2 and two sets of edge-span piers located at two ends of the stiffening beam 2; each group of side span piers comprises at least one side span pier 1; the bridge tower 3 is provided with a support 5, and the middle part of the stiffening beam 2 is supported on the support 5; two ends of a stiffening beam 2 are respectively supported on two groups of side-span piers, and at least one side-span pier 1 in each group of side-span piers is fixedly connected with the stiffening beam 2; an inclined stay cable 4 is arranged between the bridge tower 3 and the stiffening girder 2, and two ends of the inclined stay cable 4 are respectively connected with the bridge tower 3 and the stiffening girder 2. The utility model discloses a 1 concreties with stiffening beam 2 of side span pier, sets up 5 supports stiffening beam 2 combination and forms the side span concreties-tower roof beam and partly floats the mixed system on the bridge tower 3, during operation, the side span pier 1 can bear 2 axial, vertical effort of stiffening beam and the moment of flexure that arouses, and through the flexible constraint effect of side span pier 1 to stiffening beam 2, improve the atress performance and the vertical residual creep deformation of stiffening beam 2 effectively, satisfy the railway driving requirement, further widen the application scope of concrete beam cable-stayed bridge; and at least one side span pier 1 in each group of side span piers at two ends of the stiffening beam 2 is fixedly connected with the stiffening beam 2, so that the number of bridge supports 5 can be saved, the construction cost is reduced, and the later-stage anticorrosion maintenance cost is reduced.
Specifically, the bridge tower 3 in this embodiment includes a tower pier 32 and tower columns 31, the tower columns 31 are disposed on both sides of the stiffening beam 2, and the bottom of each tower column 31 is fixedly connected to the tower pier 32; the support 5 is fixed on the tower pier 32, and the stiffening beam 2 is supported on the support 5; the top of the stay cable 4 is connected with the top of the tower column 31, and the bottom of the stay cable is connected with the stiffening beam 2; the top of each column 31 is fixed, and the number of the columns 31 may be two or four. In the embodiment, the bridge tower 3 and the stiffening beam 2 are connected through the support 5 to form a semi-floating system, the number of the bridge tower 3 is not limited, the bridge tower can be arranged according to specific conditions, and various types of supports 5 can be adopted, such as a longitudinal movable support or a fixed support. Optimally, the tower columns 31 on two sides of the stiffening beam 2 are respectively provided with a limiting block 33 for limiting the stiffening beam 2 to move along the transverse bridge direction, as shown in fig. 2, the limiting blocks 33 on the tower columns 31 on two sides limit the stiffening beam 2 to move along the transverse bridge direction, and the stability of railway travelling is ensured.
Specifically, in this embodiment, there is at least one bridge tower 3, and the lateral both sides of each bridge tower 3 are all connected with stiffening beam 2 through a plurality of pairs of stay cables 4, and each pair of stay cables 4 is connected with stiffening beam 2 along the lateral both sides of bridge respectively, and it is even to guarantee that the lateral both sides of stiffening beam 2 are stressed. Furthermore, the stay cables 4 positioned on the two sides of the bridge tower 3 in the transverse direction are symmetrically arranged relative to the bridge tower 3, so that the stiffening beams on the two sides of the bridge tower 3 in the transverse direction are uniformly stressed; further, as shown in fig. 1, the connection points of the stay cables 4 and the stiffening beams 2, which are located on the same side of the stiffening beam 2 in the transverse direction of the bridge and on the same side of the stiffening beam 2 in the longitudinal direction of the bridge, are arranged at equal intervals in the longitudinal direction of the bridge; as shown in fig. 2, the connection points of the stay cables 4 and the pylons 3, which are located on the same side of the stiffening beam 2 in the transverse direction of the bridge and on the same side of the stiffening beam 2 in the longitudinal direction of the bridge, are arranged at equal intervals in the height direction of the pylon 3.
In this embodiment, the side span pier group of the cable-stayed bridge is fixedly connected with the stiffening girder 2, the number of the piers in the side span is not limited, and a single pier or a plurality of piers can be adopted to be fixedly connected with the stiffening girder 2. Optimally, each group of side-span piers comprises at least two side-span piers 1, one side-span pier 1 close to the bridge tower 3 in the side-span piers 1 is fixedly connected with a stiffening beam 2, one side-span pier 1 far away from the bridge tower 3 is provided with a support 5, and the stiffening beam 2 is supported on the support 5 of the side-span pier 1; as shown in fig. 1, the two sets of side-span piers each include two side-span piers 1, wherein one side-span pier 1 close to the bridge tower 3 is fixedly connected with a stiffening beam 2, and one side-span pier 1 far away from the bridge tower 3 supports the stiffening beam 2 through a support. Further, the bridge tower 3 is disposed on the tower pier foundation 34, the side span pier 1 is disposed on the side pier foundation 11, and the tower pier foundation 34 and the side pier foundation 11 may be a pile foundation or an enlarged foundation, or the like.
The structure of the side span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge is simple, novel and attractive, convenient to construct, economical and applicable, has the advantages of high structural rigidity, convenience in construction, low maintenance cost and the like, can effectively improve the stress performance and the vertical residual creep deformation of the stiffening beam 2 of the cable-stayed bridge, meets the railway driving requirement, and can effectively promote the popularization and application of the concrete beam cable-stayed bridge in the railway bridge construction field.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A side span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge comprises a bridge tower, stay cables, stiffening beams and two groups of side span piers positioned at two ends of the stiffening beams; each group of side span bridge piers comprises at least one side span bridge pier; the method is characterized in that: the bridge tower is provided with a support, and the middle part of the stiffening beam is supported on the support; two ends of the stiffening beam are respectively supported on two groups of side-span piers, and at least one side-span pier in each group of side-span piers is fixedly connected with the stiffening beam; and an inclined cable is arranged between the bridge tower and the stiffening beam, and two ends of the inclined cable are respectively connected with the bridge tower and the stiffening beam.
2. The sidespan consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge of claim 1, which is characterized in that: the bridge tower comprises tower piers and tower columns, the two sides of the stiffening beam are provided with the tower columns, and the bottom of each tower column is fixedly connected with the tower piers; the support is fixed on the tower pier, and the top of the stay cable is connected with the top of the tower column.
3. The sidespan consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge of claim 2, which is characterized in that: and limiting blocks for limiting the stiffening beam to move along the transverse bridge direction are arranged on the tower columns on the two sides of the stiffening beam.
4. The sidespan consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge of claim 1, which is characterized in that: the bridge tower is provided with at least one bridge tower, two sides of each bridge tower in the transverse bridge direction are connected with the stiffening girder through a plurality of pairs of stay cables, and each pair of stay cables is respectively connected with two sides of the stiffening girder in the longitudinal bridge direction.
5. The sidespan consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge of claim 4, which is characterized in that: the stay cables positioned on the two sides of the transverse bridge of the bridge tower are symmetrically arranged relative to the bridge tower.
6. The side span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge according to claim 4 or 5, characterized in that: and the stay cables which are positioned at the same side of the stiffening beam transverse bridge and positioned at the same side of the stiffening beam along the bridge are equidistantly arranged along the bridge direction at intervals at the connecting points of the stiffening beam.
7. The side span consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge according to claim 4 or 5, characterized in that: and the stay cables which are positioned at the same side of the stiffening beam transverse bridge and at the same side of the stiffening beam along the bridge are equidistantly arranged at intervals along the height direction of the bridge tower.
8. The sidespan consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge of claim 1, which is characterized in that: each group of side span piers comprises at least two side span piers, one side span pier close to the bridge tower is fixedly connected with the stiffening girder, one side span pier far away from the bridge tower is provided with a support, and the stiffening girder is supported on the support of the side span pier.
9. The sidespan consolidation-tower beam semi-floating hybrid system concrete beam cable-stayed bridge of claim 1, which is characterized in that: the bridge tower is arranged on a tower pier foundation, and the side span bridge pier is arranged on a side pier foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921586272.9U CN211522816U (en) | 2019-09-23 | 2019-09-23 | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921586272.9U CN211522816U (en) | 2019-09-23 | 2019-09-23 | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211522816U true CN211522816U (en) | 2020-09-18 |
Family
ID=72441875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921586272.9U Active CN211522816U (en) | 2019-09-23 | 2019-09-23 | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211522816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565501A (en) * | 2019-09-23 | 2019-12-13 | 中铁第四勘察设计院集团有限公司 | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge |
-
2019
- 2019-09-23 CN CN201921586272.9U patent/CN211522816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565501A (en) * | 2019-09-23 | 2019-12-13 | 中铁第四勘察设计院集团有限公司 | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101078198B (en) | Steel box beam erection method for self-anchored suspension bridge | |
| CN201144398Y (en) | Straddling type track traffic elevated 'bridge-build' structure | |
| CN110565501A (en) | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge | |
| CN105735101A (en) | High-speed railway rush repair beam capable of being converted into permanent bridge structure, and rush repair method of high-speed railway rush repair beam | |
| CN107604804B (en) | Multi-tower cable-stayed bridge with common-rail and laminated layers | |
| CN211522816U (en) | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge | |
| CN109468941A (en) | A kind of curve tower abnormity cable-stayed bridge and its construction method | |
| CN205775786U (en) | A kind of novel railway curve Cable-stayed Bridge with Slanted Pylon | |
| CN110130201A (en) | A kind of half floats the cable-stayed bridge of truss-like bridge tower | |
| CN205501788U (en) | Convertiblely salvage roof beam for permanent bridge structures's high -speed railway | |
| CN212294301U (en) | Railway cable-stayed bridge with concrete main beam and steel main beam in mixed matching | |
| CN210636294U (en) | Cable-stayed bridge of semi-floating truss type bridge tower | |
| CN209779362U (en) | Track beam system suitable for straddle type monorail and suspension type monorail | |
| CN113652948A (en) | High-speed railway cable-stayed bridge with improved rigidity | |
| CN217781780U (en) | A old bridge load sharing amplitude reduction device for piecing together wide bridge | |
| CN207919315U (en) | Four line high-speed railway steel truss cable-stayed bridges | |
| CN105821753A (en) | Novel railway curve leaning tower cable-stayed bridge | |
| CN103321137B (en) | Groove-shaped bridge beam | |
| CN205857004U (en) | A kind of construction beam | |
| CN204919348U (en) | Supplementary head tower of using of self anchored suspension bridge installation | |
| CN210657938U (en) | Deck arch-rigid frame continuous beam combined bridge | |
| CN211285310U (en) | Underground bridge reinforcing device with protective structure | |
| CN208501476U (en) | It is that long the United Nations General Assembly's stroke rail-road is layered bridge pier beam integrated structure that one kind, which being suitable for two sides, | |
| CN202913364U (en) | Steel truss girder flexible arch bridge main pier steel truss girder rod piece pieced temporary support | |
| CN202000249U (en) | Building bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |