CN215887881U - Suspension bridge anchor structure - Google Patents
Suspension bridge anchor structure Download PDFInfo
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- CN215887881U CN215887881U CN202122009207.3U CN202122009207U CN215887881U CN 215887881 U CN215887881 U CN 215887881U CN 202122009207 U CN202122009207 U CN 202122009207U CN 215887881 U CN215887881 U CN 215887881U
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- suspension bridge
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Abstract
The utility model discloses a suspension bridge anchoring structure, which comprises a tunnel side hole arranged in a tunnel, wherein the tunnel side hole is positioned at one side of the tunnel, one end of the tunnel side hole is provided with a plurality of through holes, and pipelines are arranged in the through holes; a single cable strand is arranged in the pipeline, one end of the single cable strand is provided with an anchor plate, and the other end of the single cable strand is arranged in the cable saddle; the cable saddle is arranged at the top of an anchorage cable saddle buttress of the suspension bridge; and a plurality of through holes are arranged in a rock mass, and one end of the anchor plate is contacted with the rock mass in the tunnel side hole. In the utility model, the single cable strands are dispersedly arranged in the through holes of the rock mass through the pipelines, so that the excavation disturbance to the rock mass is reduced, the high-quality rock mass is directly used for replacing the anchor block or the anchor plug body, the anchor block and the anchor plug body are formed without pouring concrete, the construction procedures are reduced, and the construction cost is reduced.
Description
Technical Field
The utility model relates to the field of suspension bridge anchoring, in particular to a suspension bridge anchoring structure.
Background
When the suspension bridge is constructed, a profile steel anchoring system or a pre-stressed anchoring system is generally adopted; the steel section anchoring system is composed of steel sections, an anchor beam is generally arranged on a front anchor surface or a rear anchor surface, and the whole anchor ingot is poured in anchor block concrete; the prestressed anchoring system is composed of a prestressed system and a cable strand connecting piece system, and the main cable strand is connected with the prestressed tendon through the connecting piece.
At present, mountain suspension bridges are increasingly constructed and are often directly connected with tunnels; for the suspension bridge anchoring connected with the tunnel, no matter a section steel anchoring system or a pre-stressed anchoring system is adopted, large-volume anchor ingots need to be excavated, concrete needs to be poured to form anchor blocks or anchor plugs, and a rear anchor chamber is reserved; the method of digging before pouring has the disadvantages of multiple working procedures, high cost and waste.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the suspension bridge anchoring structure which is simple and convenient to construct, economical and practical.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:
the anchoring structure of the suspension bridge comprises a tunnel side hole arranged in a tunnel, wherein the tunnel side hole is positioned at one side of the tunnel, and the side wall of the tunnel side hole forms a rear anchoring surface; one end of the tunnel side hole is provided with a plurality of through holes, the plurality of through holes are communicated with the tunnel side hole and the outside of the tunnel, and pipelines are arranged in the plurality of through holes; a single cable strand is arranged in the pipeline, one end of the single cable strand is provided with an anchor plate, and the other end of the single cable strand is arranged in the cable-scattering saddle; the cable saddle is arranged on the top of an anchorage cable saddle buttress of the suspension bridge.
Adopt above-mentioned technical scheme's beneficial effect: the force transmission direction of the main cable strands is changed through the cable scattering saddle, and the main cable strands are scattered into single cable strands; after a plurality of single cable strands penetrate through the pipeline in the through hole, the single cable strands are anchored on the rear anchor surface in the tunnel side hole through the anchor plate, so that the tension in the main cable strands is transferred to the rear anchor surface; a plurality of single cable strands are dispersedly installed in the rock hole through the pipeline, so that the excavation disturbance to the rock body is reduced.
Furthermore, a plurality of through holes are all arranged in the rock mass, and one end of the anchor plate is in contact with the rock mass in the tunnel side hole; the single cable strands are dispersedly installed in the through holes of the rock body through the pipelines, so that the excavation disturbance to the rock body is reduced; and the anchor block and the anchor plug body are formed without pouring concrete, and the high-quality rock mass is directly used for replacing the anchor block or the anchor plug body, so that the construction procedures are reduced, and the construction cost is reduced.
Furthermore, the forming directions of the through holes are parallel to each other, so that repeated adjustment of the drilling angle by construction machinery is avoided, and the construction of the through holes is facilitated.
Furthermore, the single cable strand is in threaded connection with a tensioning nut, and the anchor plate is installed at one end of the single cable strand through the tensioning nut; and screwing the tensioning nut to fix the anchor plate on the rock mass, so that two ends of the anchor plate are respectively in close contact with the tensioning nut and the rock mass, and the tension on the single cable strand can be effectively transmitted to the rock mass through the tensioning nut and the anchor plate.
Further, one end of the single-strand anchor plate is provided with an external thread for tensioning the single strand.
Furthermore, an anticorrosive coating is arranged between the single strand and the pipeline, for example, a rubber coating belt is wound to prepare or is coated with anticorrosive paint.
The utility model has the beneficial effects that: a plurality of single cable strands are dispersedly installed in the through holes of the rock mass through pipelines, so that the excavation disturbance to the rock mass is reduced, the high-quality rock mass is directly utilized to replace the anchor block or the anchor plug body, the concrete does not need to be poured to form the anchor block and the anchor plug body, the construction procedures are reduced, and the construction cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a schematic structural diagram of a tunnel side hole according to an embodiment of the present invention;
the method comprises the following steps of 1, tunnel side holes, 2, anchor plates, 3, single cable strands, 4, pipelines, 5, rock masses, 6, tunnels, 7, cable saddle scattering, 8 and tensioning nuts.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the utility model as defined and defined in the appended claims, and all changes that come within the meaning and range of equivalency of the claims are to be embraced therein.
As shown in fig. 1-3, a suspension bridge anchoring structure comprises a tunnel side hole 1 arranged in a tunnel 6, wherein the tunnel side hole 1 is positioned at one side of the tunnel 6, and the side wall of the tunnel side hole 1 forms a rear anchoring surface; one end of the tunnel side hole 1 is provided with a plurality of through holes, and the through holes are communicated with the tunnel side hole and the outside of the tunnel; the plurality of through holes are internally provided with pipelines 4; a single cable strand 3 is installed in the pipeline 4, one end of the single cable strand 3 is provided with an anchor plate 2, the other end of the single cable strand 3 is installed in a cable saddle 7, and the cable saddle 7 is installed at the top of an anchor cable saddle buttress of the suspension bridge; the force transmission direction of the main cable strands is changed through the cable scattering saddle 7, and the main cable strands are scattered into the single cable strands 3; after a plurality of single strands 3 pass through a pipeline 4 in the through hole, the single strands are anchored on the rear anchor surface in the tunnel side hole 1 through the anchor plate 2, so that the tension in the main cable strands is transferred to the rear anchor surface; a plurality of single cable strands 3 are dispersedly installed in the rock hole through the pipelines 4, so that the excavation disturbance of the rock body 5 is reduced.
As an alternative embodiment, a plurality of through holes are arranged in the rock mass 5, and one end of the anchor plate 2 is contacted with the rock mass 5 in the tunnel side cave 1; the single cable strands 3 are dispersedly installed in the through holes of the rock mass 5 through the pipelines 4, so that the excavation disturbance to the rock mass 5 is reduced; and need not to pour concrete and form anchor block and anchor chock body again, but directly utilize high-quality rock mass 5 to replace anchor block or anchor chock body, reduced the construction process, reduced construction cost.
As an optional implementation mode, the opening directions of the through holes are mutually parallel, so that repeated adjustment of the drilling angle by a construction machine is avoided, and the construction of the through holes is facilitated.
As an alternative embodiment, the single strand 3 is in threaded connection with a tensioning nut 8, and the anchor plate 2 is mounted at one end of the single strand 3 through the tensioning nut 8; and screwing the tensioning nut 8 to fix the anchor plate 2 on the rock mass 5, so that two ends of the anchor plate 2 are respectively in close contact with the tensioning nut 8 and the rock mass 5, and the tension on the single strand 3 can be effectively transmitted to the rock mass 5 through the tensioning nut 8 and the anchor plate 2.
As an alternative embodiment, the end of the single strand 3 where the anchor plate 2 is mounted is provided with an external thread for tensioning the single strand 3.
As an alternative embodiment, an anticorrosive layer is arranged between the single strand 3 and the pipeline 4, for example, a rubber-coated tape is wound to form or is coated with anticorrosive paint.
The construction method comprises the following steps:
step 1: excavating a tunnel side hole 1 at one side in the tunnel 6;
step 2: drilling a hole in the rock body 5 and embedding the pipeline 4 after accurately positioning the drilling position;
and step 3: erecting a single cable strand 3, enabling the single cable strand 3 to pass through the pre-buried pipeline 4, and anchoring the single cable strand 3 by using an anchor plate 2 on the rear anchoring surface of a rock body 5;
and 4, step 4: the line shape of the main cable strand is adjusted, and after the line shape is completely adjusted, the tension of the single cable strand 3 is adjusted by adjusting the tensioning nut 8;
and 5: after the tensioning is completed, the pipe 4 in the rock mass 5 is sealed.
Claims (6)
1. The suspension bridge anchoring structure is characterized by comprising a tunnel side hole (1) arranged in a tunnel (6), wherein one end of the tunnel side hole (1) is provided with a plurality of through holes, the through holes are communicated with the tunnel side hole (1) and the outside of the tunnel, and pipelines (4) are arranged in the through holes; install single cable strand (3) in pipeline (4), anchor plate (2) are installed to the one end of single cable strand (3), and the other end is installed in scattered cable saddle (7), scattered cable saddle (7) are installed at the anchor of suspension bridge and are scattered cable saddle buttress top.
2. The suspension bridge anchoring structure according to claim 1, wherein a number of the through holes are provided in the rock mass (5), one end of the anchor plate (2) contacting the rock mass (5) in the tunnel side tunnel (1).
3. The suspension bridge anchoring structure according to claim 1, wherein the opening directions of the plurality of through holes are parallel to each other.
4. The suspension bridge anchoring structure according to claim 1, wherein a tension nut (8) is threadedly connected to the single strand (3), and the anchor plate (2) is mounted at one end of the single strand (3) by means of the tension nut (8).
5. Suspension bridge anchoring structure according to claim 4, characterized in that the end of the single strand (3) where the anchor plate (2) is mounted is provided with an external thread.
6. Suspension bridge anchoring structure according to claim 1, characterized in that an anti-corrosion layer is provided between the single strands (3) and the pipeline (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122009207.3U CN215887881U (en) | 2021-08-25 | 2021-08-25 | Suspension bridge anchor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122009207.3U CN215887881U (en) | 2021-08-25 | 2021-08-25 | Suspension bridge anchor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215887881U true CN215887881U (en) | 2022-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122009207.3U Active CN215887881U (en) | 2021-08-25 | 2021-08-25 | Suspension bridge anchor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215887881U (en) |
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2021
- 2021-08-25 CN CN202122009207.3U patent/CN215887881U/en active Active
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