CN212452311U - Installation device of stay cable guide pipe - Google Patents
Installation device of stay cable guide pipe Download PDFInfo
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- CN212452311U CN212452311U CN202021002731.7U CN202021002731U CN212452311U CN 212452311 U CN212452311 U CN 212452311U CN 202021002731 U CN202021002731 U CN 202021002731U CN 212452311 U CN212452311 U CN 212452311U
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- cable guide
- pipe
- guide pipe
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- cable
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Abstract
The utility model relates to the technical field of bridge construction, in particular to an installation device of a stay cable guide pipe, which comprises a pre-buried pipe, wherein the pre-buried pipe is internally used for installing the cable guide pipe, one end of the pre-buried pipe is positioned in a first tower column segment, a steel anchor box is arranged above the first tower column segment, a preformed hole is arranged on the steel anchor box and used for installing the cable guide pipe, and the other end of the pre-buried pipe extends out of the top surface of the first tower column segment and corresponds to the preformed hole; the cable guide pipe can be adjusted to a certain degree in the embedded pipe until the cable guide pipe is accurately positioned, grouting materials are used between the embedded pipe and the cable guide pipe for filling, so that the extending direction of the cable guide pipe is accurate, the purpose of accurately positioning the cable guide pipe is achieved, the construction precision is guaranteed, and members such as an inclined cable can be installed smoothly in the follow-up process.
Description
Technical Field
The utility model relates to a bridge construction technical field, especially an installation device of suspension cable pipe.
Background
The positioning of the stay cable guide pipe is an important content of the design of the cable-stayed bridge and an important guarantee of the construction precision. Under the action of dead weight, the real line of the stay cable is a catenary. The method comprises the steps of determining the cable outlet point position of the top surface of a tower column section according to the real linear shape of a stay cable, and then installing a cable guide pipe along the anchoring point and the cable outlet point, so that the direction accuracy of the cable guide pipe can be really ensured, otherwise, the problems of difficult installation of a shock absorber, conflict between the stay cable and a guide pipe wall and the like caused by large deviation can be caused.
At present, most of cable-stayed bridges are used for installing cable conduits, a pre-embedded mode is generally adopted, after the cable conduits are installed to a target position, tower column concrete is poured to enable the cable conduits to be pre-embedded in tower column sections, then steel anchor boxes are installed above the tower column sections, the cable conduits can be just matched with reserved holes in the steel anchor boxes, and the cable conduits are short in length and about 3 meters, so that the accuracy of the installation direction of the cable conduits can be guaranteed through the direct pre-embedded mode, and the installation of subsequent components cannot be influenced; however, the problem that the cable guide pipe cannot move and be adjusted in a tower section exists in the mode of directly embedding the cable guide pipe, for some special-shaped bridges, the length of the cable guide pipe is long and can reach 9 meters, and the height of the tower section is exceeded, the mode of directly embedding the cable guide pipe is adopted, so that the accuracy of the installation direction of the cable guide pipe is difficult to guarantee, the cable guide pipe is not matched with a reserved hole in an upper steel anchor box after the cable guide pipe is embedded, the installation of the upper steel anchor box is influenced, and the installation of a follow-up shock absorber and a stay cable can be influenced due to deviation of the cable guide pipe.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the problems that in the prior art, for some special-shaped bridges, the length of a cable guide pipe is long, the cable guide pipe is directly embedded, the direction of installing the cable guide pipe is difficult to guarantee to be accurate, the cable guide pipe is often not matched with a preformed hole in an upper steel anchor box after the cable guide pipe is embedded, the installation of the upper steel anchor box is influenced, and the installation of a follow-up shock absorber and a stay cable can be influenced due to the fact that the cable guide pipe is deviated, the installation device of the stay cable guide pipe is provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides an installation device of suspension cable pipe, includes the buried pipe in advance, be used for installing the cable pipe in the buried pipe, the one end of buried pipe is located first pylon segment section, first pylon segment section top is equipped with the steel anchor case, be equipped with the preformed hole on the steel anchor case, the preformed hole is used for the installation the cable pipe, the other end of buried pipe stretches out the top surface of first pylon segment section, and with the preformed hole is corresponding.
Because the embedded pipe is arranged and is used for installing the cable guide pipe, the embedded pipe is positioned and fixed before the cable guide pipe is installed, then pouring concrete of the first tower column segment, and then installing the cable guide pipe, specifically, extending the cable guide pipe from the embedded pipe to the reserved hole, therefore, the allowable deviation of the positioning of the cable guide pipe is increased by utilizing the space inside the embedded pipe, the cable guide pipe can be adjusted to a certain extent in the embedded pipe until the cable guide pipe is accurately positioned, the grouting material is used for filling between the embedded pipe and the cable guide pipe, so that the extending direction of the cable guide pipe is accurate, the purpose of accurately positioning the cable guide pipe is achieved, the construction precision is guaranteed, and members such as a stay cable can be installed smoothly in the follow-up process.
As the utility model discloses a preferred scheme, the embedded pipe includes first embedded pipe and second embedded pipe, first embedded pipe with the second embedded pipe about the centerline symmetry setting of first pylon festival section. Because the stay cables are arranged symmetrically, correspondingly, the first embedded pipe and the second embedded pipe are arranged symmetrically, and the cable guide pipes correspondingly arranged in the two embedded pipes are also arranged symmetrically.
As a preferred embodiment of the present invention, the first embedded pipe and the second embedded pipe are disposed in the first tower section in an inclined manner. The inclination angle is determined according to the trend of the stay cable.
As the preferred scheme of the utility model, the pre-buried pipe is the steel pipe.
As the preferred scheme of the utility model, the welding has strength nature skeleton on the embedded pipe, strength nature skeleton is used for supplementary the embedded pipe is fixed a position.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
because the embedded pipe is arranged and is used for installing the cable guide pipe, the embedded pipe is positioned and fixed before the cable guide pipe is installed, then pouring concrete of the first tower column segment, and then installing the cable guide pipe, specifically, extending the cable guide pipe from the embedded pipe to the reserved hole, therefore, the allowable deviation of the positioning of the cable guide pipe is increased by utilizing the space inside the embedded pipe, the cable guide pipe can be adjusted to a certain extent in the embedded pipe until the cable guide pipe is accurately positioned, the grouting material is used for filling between the embedded pipe and the cable guide pipe, so that the extending direction of the cable guide pipe is accurate, the purpose of accurately positioning the cable guide pipe is achieved, the construction precision is guaranteed, and members such as a stay cable can be installed smoothly in the follow-up process.
Drawings
Fig. 1 is a schematic structural view of the installation device for a stay cable guide tube according to the present invention.
Fig. 2 is a side view of fig. 1.
Figure 3 is a half-sectional view of the steel anchor box of the present invention.
Icon: 11-a first pre-buried pipe; 12-a second pre-buried pipe; 2-a cable guide; 31-a first tower section; 32-a second tower section; 4-steel anchor box; 41-preformed hole; 5-stiff skeleton.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
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 for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1 to 3, an installation device for a stay cable guide tube includes a first embedded tube 11 and a second embedded tube 12, the first embedded tube 11 and the second embedded tube 12 are used for installing a cable guide tube 2, one end of the first embedded tube 11 and one end of the second embedded tube 12 are located in a first tower column section 31, a steel anchor box 4 is arranged above the first tower column section 31, a preformed hole 41 is arranged on the steel anchor box 4, and the preformed hole 41 is used for installing the cable guide tube 2; the other ends of the first and second embedded pipes 11 and 12 extend out of the top surface of the first tower section 31 and correspond to the prepared holes 41, and correspondingly, the cable guide pipes 2 located in the first and second embedded pipes 11 and 12 can extend to the corresponding prepared holes 41.
The first and second embedded pipes 11 and 12 are symmetrically arranged about the center line L of the first tower section 31; the first and second embedded pipes 11 and 12 are arranged obliquely in the first tower section 31.
In this embodiment, the first and second embedded pipes 11 and 12 are steel pipes.
Firstly, positioning and fixing the first embedded pipe 11 and the second embedded pipe 12, then pouring concrete of the first tower column segment 31, and then installing the cable guide pipe 2, specifically, extending the cable guide pipe 2 from the first embedded pipe 11 or the second embedded pipe 12 to the position of the preformed hole 41, and adjusting the steel anchor box 4 to the position by using a position adjusting mechanism, wherein the position adjusting mechanism can be a jack, and adjusting the plane position and the elevation of the steel anchor box 4 by using the pushing action of the jack so as to enable the steel anchor box to reach a target position; after the steel anchor box 4 is installed in place, the position of the cable guide pipe 2 is adjusted by utilizing the space between the first embedded pipe 11 and the second embedded pipe 12, and after the cable guide pipe 2 is adjusted in place, grouting and filling are carried out between the first embedded pipe 11 and the cable guide pipe 2 and between the second embedded pipe 12 and the cable guide pipe 2.
After the cable duct 2 is installed, the stay cables and other members are installed, and then the second tower section 32 is poured.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides an installation device of suspension cable pipe, its characterized in that, includes the buried pipe, be used for installing cable pipe (2) in the buried pipe, the one end of buried pipe is located first pylon segment (31), first pylon segment (31) top is equipped with steel anchor case (4), be equipped with preformed hole (41) on steel anchor case (4), preformed hole (41) are used for the installation cable pipe (2), the other end of buried pipe stretches out the top surface of first pylon segment (31), and with preformed hole (41) are corresponding.
2. A stay cable guide tube installation apparatus as claimed in claim 1, wherein the embedded tube comprises a first embedded tube (11) and a second embedded tube (12), the first embedded tube (11) and the second embedded tube (12) being symmetrically disposed about a center line of the first pylon segment (31).
3. A stay cable guide tube installation apparatus as claimed in claim 2, wherein the first and second pre-buried pipes (11, 12) are arranged obliquely within the first pylon segment (31).
4. The installation device for a stay cable guide tube according to claim 1, wherein the pre-buried tube is a steel tube.
5. The installation device of a stay cable guide tube according to claim 1, wherein a stiff skeleton (5) is welded on the embedded tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021002731.7U CN212452311U (en) | 2020-06-04 | 2020-06-04 | Installation device of stay cable guide pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021002731.7U CN212452311U (en) | 2020-06-04 | 2020-06-04 | Installation device of stay cable guide pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212452311U true CN212452311U (en) | 2021-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021002731.7U Active CN212452311U (en) | 2020-06-04 | 2020-06-04 | Installation device of stay cable guide pipe |
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| Country | Link |
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| CN (1) | CN212452311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016405A (en) * | 2021-11-26 | 2022-02-08 | 中铁二局集团有限公司 | Method for installing pylon cable guide pipe of cable-stayed bridge |
-
2020
- 2020-06-04 CN CN202021002731.7U patent/CN212452311U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016405A (en) * | 2021-11-26 | 2022-02-08 | 中铁二局集团有限公司 | Method for installing pylon cable guide pipe of cable-stayed bridge |
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