CN210529486U - Cable bridge construction - Google Patents
Cable bridge construction Download PDFInfo
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- CN210529486U CN210529486U CN201920814085.5U CN201920814085U CN210529486U CN 210529486 U CN210529486 U CN 210529486U CN 201920814085 U CN201920814085 U CN 201920814085U CN 210529486 U CN210529486 U CN 210529486U
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Abstract
The utility model discloses a cable bridge-mounting structure, including cable bridge-mounting steel frame and power duct, the cable bridge-mounting steel frame includes pier installation steelframe, case roof beam installation steelframe and guardrail installation steelframe, pier installation steelframe passes through chemical bolt and installs on one of them pier of bridge, pier installation steelframe and this pier are accepted through the same cushion cap, case roof beam installation steelframe passes through chemical bolt and installs on the case roof beam of bridge, guardrail installation steelframe passes through chemical bolt and installs on the guardrail of bridge; the lower end of the box girder mounting steel frame is inserted into the upper end of the pier mounting steel frame, and the lower end of the box girder mounting steel frame can move relative to the upper end of the pier mounting steel frame; the power pipe trench is arranged on the foundation. The utility model discloses a power duct draws the cable to the pier below, utilizes the pier to set up pier installation steelframe as the bearing carrier in the side of pier, and the cable passes through pier installation steelframe and gets into the bridge, accomplishes the cable and goes up the bridge, and its construction degree of difficulty is low, economic nature is good, the time limit for a project is short.
Description
Technical Field
The utility model belongs to the bridge field, more specifically relates to a bridge construction on cable.
Background
Two situations exist in the urban rail transit implementation process, and cables need to be bridged. 1) When the main substation is connected to a main line station or an overhead interval, the cable needs to be bridged to meet the power supply requirement. 2) Set up the waste water pump house in the place of overhead commentaries on classics underground bridge tunnel boundary, need to set up in order to satisfy waste water pump house and fan power consumption load and follow the institute, follow the cable needs and go up the bridge and satisfy water pump and fan power consumption demand.
At present, common methods for bridging cables are as follows: in order to reduce the influence on urban landscape, cables are led out to the lower portion of the bridge from a main substation or a power pipe trench adopted for following, then a cable bridge-climbing steel frame structure with the appearance similar to that of a pier is independently built at a certain position between two piers of the bridge, and the cable bridge-climbing steel frame structure is used as a bearing body to complete cable bridge climbing. Because the bridge floor is wider in the elevated area, the two overhanging edges of the steel frame can reach 4-5 meters sometimes, the steel structure must meet the self strength, rigidity and stability under the working conditions of wind load, earthquake load, cable load and the like in the design process, the urban landscape requirements are considered simultaneously, the structure which is often built is huge in size, an independent foundation is often selected for the foundation of the steel frame structure on the cable bridge, and sometimes even a pile foundation must be adopted to meet the bearing capacity and settlement calculation requirements, so that the construction difficulty is high, the construction period is long, and very large workload is brought to the design and construction.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve the demand, the utility model provides a bridge construction on cable, its structure is light and handy, the construction degree of difficulty is low, economic nature is good, the time limit for a project is short.
To achieve the above object, according to one aspect of the present invention, there is provided a cable bridge structure, comprising a cable bridge steel frame and a power duct, wherein,
the cable upper bridge steel frame comprises a pier mounting steel frame, a box girder mounting steel frame and a guardrail mounting steel frame, the pier mounting steel frame is mounted on one pier of the bridge through a chemical bolt and mounted close to the outer side of the pier, the pier mounting steel frame and the pier are connected through the same bearing platform, the box girder mounting steel frame is mounted on the box girder of the bridge through the chemical bolt and mounted close to the outer side of the box girder, and the guardrail mounting steel frame is mounted on a guardrail of the bridge through the chemical bolt and mounted close to the outer side of the guardrail;
the upper end of the pier mounting steel frame is provided with a mounting sleeve, the lower end of the box girder mounting steel frame is inserted into the mounting sleeve, the lower end of the box girder mounting steel frame can move up and down relative to the mounting sleeve, and a gap exists between the outer side of the lower end of the box girder mounting steel frame and the inner wall of the mounting sleeve so as to adapt to the deformation of a bridge;
the power pipe trench is provided on a foundation for arranging a cable.
Preferably, the cable bridge deck is provided with two and arranged transversely to the bridge direction, and the bridge is located between the two cable bridge decks.
Preferably, the power pipe trench includes a main trench and two branch trenches, each branch trench is connected to the main trench, a cable upper bridge steel frame is disposed above each branch trench, and the pier connected to the cable upper bridge steel frame is located between the two branch trenches.
Preferably, the framework of the cable upper bridge steel frame is formed by welding square steels, and an inclined support steel pipe inclined relative to the horizontal plane is arranged between the square steels.
Preferably, the outer sides of the square steel and the inclined strut steel pipe are subjected to hot galvanizing treatment.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
1) the utility model discloses can come the cable to draw corresponding pier below through excavation electric power trench at the ground, then utilize pier, box girder and the guardrail of bridge as the bearing carrier, set up pier installing support, box girder installing support and guardrail installing support in their outside respectively, the cable gets into the overpass roof beam from electric power trench upper bridge through these installing supports, accomplishes the cable upper bridge, it is light and handy to have the structure, the construction degree of difficulty is low, economic nature is good, advantages such as time limit for a project is short.
2) The utility model discloses a lower extreme of case roof beam installation steelframe inserts in the installation sleeve on this pier installation steelframe to these two parts can the relative activity, thereby can combine to adapt to the deformation at parallel, perpendicular to bridge axis direction with the expansion joint on the bridge.
Drawings
FIG. 1 is a plan view of a power duct of the present invention;
FIG. 2 is a cross-sectional view of the cable holder according to the present invention;
fig. 3 is a top view of the cable holder of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 3, a cable bridge structure comprises a cable bridge steel frame 1 and a power duct 2, wherein the framework of the cable bridge steel frame 1 is formed by welding square steels 101, an inclined support steel pipe 102 inclined relative to the horizontal plane is arranged between the square steels 101, and the outer sides of the square steels 101 and the inclined support steel pipe 102 are subjected to hot galvanizing treatment, so that the support strength of the cable bridge steel frame 1 is high, and the cable bridge steel frame 1 is exposed in the air and can play a role in corrosion prevention, and the inclined support steel pipe 102 can play a role in further reinforcing the framework of the cable bridge steel frame 1, wherein,
the cable upper bridge steel frame 1 comprises a bridge pier mounting steel frame 11, a box girder mounting steel frame 12 and a guardrail mounting steel frame 13, wherein the bridge pier mounting steel frame 11 is mounted on one bridge pier 4 of the bridge through a chemical bolt 3 and mounted along the outer side of the bridge pier 4, the bridge pier mounting steel frame 11 and the bridge pier 4 are connected through the same bearing platform 7, so that the bridge pier mounting steel frame 11 can be supported by the original bearing platform 7, the box girder mounting steel frame 12 is mounted on the box girder 5 of the bridge through the chemical bolt 3 and mounted along the outer side of the box girder 5, and the guardrail mounting steel frame 13 is mounted on a guardrail 6 of the bridge through the chemical bolt 3 and mounted along the outer side of the guardrail 6; the pier mounting steel frames 11, the box girder mounting steel frames 12 and the guardrail mounting steel frames 13 are correspondingly mounted at the positions of the same section of pier 4 of the bridge; pre-buried angle steel 9 is preferably arranged on each of the pier mounting steel frame 11, the box girder mounting steel frame 12 and the guardrail mounting steel frame 13, and the pier mounting steel frame 11, the box girder mounting steel frame 12 and the guardrail mounting steel frame 13 are respectively mounted on the pier 4, the box girder 5 and the guardrail 6 after the chemical bolts 3 pass through the pre-buried angle steel 9; if a gap exists between the two parts of the bridge, the rear steel plate 8 can be arranged at the gap, and then the chemical bolts 3 sequentially penetrate through the embedded angle steel 9 and the rear steel plate 8 and then stretch into the bridge.
The upper end of the pier mounting steel frame 11 is provided with a mounting sleeve, the lower end of the box girder mounting steel frame 12 is inserted into the mounting sleeve, the lower end of the box girder mounting steel frame 12 can move up and down relative to the mounting sleeve, and a gap exists between the outer side of the lower end of the box girder mounting steel frame 12 and the inner wall of the mounting sleeve so as to adapt to the deformation of a bridge; the bridge all can have the deformation in perpendicular to bridge axis and the direction that is on a parallel with the bridge axis, consequently is provided with the bridge expansion joint on the bridge and adapts to this and warp, and the utility model discloses a lower extreme and the installation sleeve of case roof beam installation steelframe 12 form the fossil fragments expansion joint jointly, can cooperate jointly with the bridge expansion joint and adapt to the bridge and warp.
The power pipe trench 2 is arranged on the foundation and used for arranging cables, and the cables are led out to the bridge steel frame 1 on the cables through the power pipe trench 2 and then are led to the bridge.
Further, this bridge steelframe 1 is provided with two and their horizontal bridge is to arranging, and the bridge is located between these two bridge steelframes 1 on the cable, can carry out the wiring from the both sides of bridge like this.
Further, the power pipe trench 2 includes a main trench 21 and two branch trenches 22, each branch trench 22 is connected to the main trench 21, a cable upper bridge steel frame 1 is disposed above each branch trench 22, and the pier 4 connected to the cable upper bridge steel frame 1 is located between the two branch trenches 22. Through the bifurcation formed by the two branch trenches 22, one cable can be divided into two parts, and then the cable can be bridged through the cable steel-bridging frame 1 on the two sides of the pier 4.
The utility model also provides a method that the bridge construction was put on the cable is carried out to cable bridge structure, including following step:
1) introducing a cable to a side surface of the pier 4 through the power pipe trench 2;
2) after the cable upper bridge steel frame 1 is transported to the site, firstly, the guardrail mounting steel frame 13 and the box girder mounting steel frame 12 are well positioned (pre-mounted) on the outer side of the guardrail 6 and the outer side of the box girder 5 of the bridge respectively, and then the guardrail mounting steel frame 13 and the box girder mounting steel frame 12 are respectively mounted on the guardrail 6 and the box girder 5 through chemical anchor bolts;
3) adjusting the position of a pier mounting steel frame 11 at the outer side of the pier mounting steel frame 11 of the bridge (pre-mounting), inserting the lower end of the box girder mounting steel frame 12 mounted in the step 2) into the upper end of the pier mounting steel frame 11, enabling the lower end of the box girder mounting steel frame 12 to move relative to the upper end of the pier mounting steel frame 11, and fixing the pier mounting steel frame 11 on one pier 4 through a chemical anchor bolt; the pulling resistance and the shearing resistance of the bolts are realized by means of the combined action of the bond stress and the mechanical occlusion force between the chemical bolts 3 and the concrete, so that the pier mounting steel frame 11, the box girder mounting steel frame 12 and the guardrail mounting steel frame 13 can be firmly mounted on the bridge;
4) the cable is pulled out from the power duct 2 and is led to the bridge steel frame 1 and the bridge to be fixed, and in this way, the bridge construction of the cable is realized.
5) After the cable is fixed, an aluminum plate can be arranged on the steel cable upper bridge steel frame 1. The aluminum plate not only can play a certain protection role in the cable upper bridge steel frame 1, but also can be adapted to the peripheral landscape to beautify the cable upper bridge steel frame 1.
The utility model discloses the bridge that the utilization was under construction and was accomplished sets up bridge steelframe 1 on the cable as the supporting body in the outside of bridge, and the cable passes through bridge steelframe 1 on the cable and gets into the overpass roof beam from the bridge on power duct 2, accomplishes the cable and goes up the bridge, has that the cost is low, the construction degree of difficulty is low, economic nature is good, advantage such as the time limit for a project is short.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A cable bridge-over structure is characterized by comprising a cable bridge-over steel frame and a power pipe trench, wherein,
the cable upper bridge steel frame comprises a pier mounting steel frame, a box girder mounting steel frame and a guardrail mounting steel frame, the pier mounting steel frame is mounted on one pier of the bridge through a chemical bolt and mounted close to the outer side of the pier, the pier mounting steel frame and the pier are connected through the same bearing platform, the box girder mounting steel frame is mounted on the box girder of the bridge through the chemical bolt and mounted close to the outer side of the box girder, and the guardrail mounting steel frame is mounted on a guardrail of the bridge through the chemical bolt and mounted close to the outer side of the guardrail;
the upper end of the pier mounting steel frame is provided with a mounting sleeve, the lower end of the box girder mounting steel frame is inserted into the mounting sleeve, the lower end of the box girder mounting steel frame can move up and down relative to the mounting sleeve, and a gap exists between the outer side of the lower end of the box girder mounting steel frame and the inner wall of the mounting sleeve so as to adapt to the deformation of a bridge;
the power pipe trench is provided on a foundation for arranging a cable.
2. A cable bridge construction according to claim 1 wherein there are two cable bridge steel frames and they are arranged transversely across the bridge, the bridge being located between the two cable bridge steel frames.
3. The cable bridge structure according to claim 2, wherein the power duct includes a main duct and two branch ducts, each of the branch ducts is connected to the main duct, a cable bridge frame is disposed above each of the branch ducts, and the pier connected to the cable bridge frame is located between the two branch ducts.
4. The cable bridge structure of claim 1, wherein the framework of the cable bridge steel frame is formed by welding square steels, and inclined support steel pipes inclined relative to a horizontal plane are arranged between the square steels.
5. The cable bridge structure according to claim 4, wherein the outer sides of the square steel and the angle brace steel pipe are hot-galvanized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814085.5U CN210529486U (en) | 2019-05-31 | 2019-05-31 | Cable bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814085.5U CN210529486U (en) | 2019-05-31 | 2019-05-31 | Cable bridge construction |
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|---|---|
| CN210529486U true CN210529486U (en) | 2020-05-15 |
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| CN201920814085.5U Active CN210529486U (en) | 2019-05-31 | 2019-05-31 | Cable bridge construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106783A (en) * | 2019-05-31 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | Bridge structure and construction method on a kind of cable |
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2019
- 2019-05-31 CN CN201920814085.5U patent/CN210529486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106783A (en) * | 2019-05-31 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | Bridge structure and construction method on a kind of cable |
| CN110106783B (en) * | 2019-05-31 | 2023-12-15 | 中铁第四勘察设计院集团有限公司 | Cable upper bridge structure and construction method |
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