CN202416177U - Stay cable guide pipe sealing and corrosion preventing structure - Google Patents
Stay cable guide pipe sealing and corrosion preventing structure Download PDFInfo
- Publication number
- CN202416177U CN202416177U CN201120553490XU CN201120553490U CN202416177U CN 202416177 U CN202416177 U CN 202416177U CN 201120553490X U CN201120553490X U CN 201120553490XU CN 201120553490 U CN201120553490 U CN 201120553490U CN 202416177 U CN202416177 U CN 202416177U
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- China
- Prior art keywords
- guide pipe
- cable guide
- line
- cable
- cable body
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a stay cable guide pipe sealing and corrosion preventing structure. The structure comprises an anchor backing plate, wherein a cable guide pipe is fixed on the anchor backing plate; a cable body penetrates through the cable guide pipe and is anchored on the end face of the anchor backing plate by anchorage devices; an anchor head protective cover covers the anchorage devices and is tightly connected with the end face of the anchor backing plate; the upper part of the cable guide pipe is exposed out of the beam surface; a rain cover is arranged at the upper end of the cable guide pipe; a stainless steel protective jacket is arranged outside the exposed cable body; the lower end of the stainless steel protective jacket is inserted into the rain cover; the rain cover and the cable body are sealed by upper elastic seal gum layers; vibration dampers are arranged between the cable guide pipe and the cable body and below the upper elastic seal gum layers; and filling elastic seal gum layers are arranged below the vibration dampers. The structure has the following beneficial effects that the filling elastic seal gum layers between the cable guide pipe and the cable body are likely to vibrate and extend with the cable body and then elastically deform, so that the cable body, the elastic seal gum and the cable guide pipe realize seamless bonding; and through water guide design of the rain cover, water and other harmful impurities are removed outside the cable guide pipe, thus the water and other harmful impurities are stopped from corroding the cable body and the anchorage device structures.
Description
Technical field:
The utility model belongs to the bridge construction technical field of construction, is specifically related to the drag-line cable guide pipe sealing corrosion structure of using on a kind of bridge stay cable structure.
Background technology:
For suspension cable structure, cable body and ground tackle binding site are the weak links of whole protective system, in the beam anchorage district of suspension cable; Anchor plate and cable guide pipe structure are set; Usually rainwater can be dirty along cable body, lost efficacy the interior ponding easily of cable guide pipe in case be installed in the rain cover sealing structure of cable guide pipe port; And then corrode cable body, ground tackle and binding site thereof, have a strong impact on the application life of suspension cable structure.At present, the sealing of cable guide pipe position is filled to the master with corrosion resistant materials such as grease, polyurethane foams, stops or delay source of corrosion through sealing, filling mode to get into steel wire and ground tackle structure, prevents the generation of corrosion failure.
Contrast grease-filled and the foam filled dual mode of polyamine fat, in the anticorrosion grease strand undersaturated chemical bond is arranged, influence the ageing properties of anticorrosion grease.And the viscosity of grease is relatively more responsive to environment temperature, can produce trickling when temperature is higher, analyse oily phenomenon.Corrosion of Metallic Materials is quickened in its catabolite and water acting in conjunction, and cable body is caused secondary pollution.Have certain shape and intensity after the polyurethane foamed material foaming is accomplished, because cable body vibration and variations in temperature, polyurethane foamed material will be torn after use a period of time, and then seal failure.Foaming speed is fast in addition, and porosity is bigger, and sealing performance can't guarantee.
The utility model content:
In sum; For overcoming the deficiency of prior art, the utility model provides a kind of drag-line cable guide pipe sealing corrosion structure, and it is in the upper end of cable guide pipe rain cover to be set; Adopt the elastic sealant sealing in the cable guide pipe and between the cable body; Elastic deformation takes place along with the contingent vibration of cable body and elongation in elastic sealant, thereby makes cable body, elastic sealant, cable guide pipe realize seamless bonding, is adding the water guide design of rain cover; Be rejected to water and other objectionable impurities beyond the cable guide pipe, stop its erosion damage cable body and ground tackle structure.
For solving the problems of the technologies described above, the technical scheme of the utility model is achieved in that
A kind of drag-line cable guide pipe sealing corrosion structure, wherein: comprise rain cover, top elastic packing glue-line, fill elastic packing glue-line, anchor head protective cover, cable guide pipe and anchor plate, cable guide pipe is fixed on the anchor plate; Cable body is installed in the cable guide pipe, and is anchored in the anchor plate end face through ground tackle, and the anchor head protective cover covers ground tackle; And be connected with the anchor plate end face seal; The beam face is exposed on cable guide pipe top, is provided with rain cover in the cable guide pipe upper end, exposes cable body and is outside equipped with stainless steel sheath; Insert in the rain cover stainless steel sheath lower end; Through the sealing of top elastic packing glue-line, between cable guide pipe and the cable body, be provided with damper under the elastic packing glue-line of top, be provided with under the damper and fill the elastic packing glue-line between rain cover and the cable body; Fill the elastic packing glue-line and be arranged between cable guide pipe and the cable body, fill between cable body and the cable guide pipe of elastic sealant under layer by layer and be provided with the polyurethane foam layer.
Further, described top elastic packing glue-line and filling elastic packing glue-line are and gather sulphur preserving and sealing glue.
Further, the height of described filling elastic packing glue-line is 500～800mm.
Further, described rain cover is the stainless steel rain cover, and its cross sectional shape is unitary tapered, or is the ladder taper.
Further, be provided with the transition primary coat between described top elastic packing glue-line and the cable body and between filling elastic packing glue-line and the cable body.
The beneficial effect of the utility model is:
1, the utility model is to adopt elastic sealant to fill sealing in the cable guide pipe, in the upper end of cable guide pipe rain cover is set, and uses the elastic sealant sealing between rain cover and the cable body.Elastic sealant is along with the contingent vibration of cable body and elongation and elastic deformation takes place; Thereby make cable body, elastic sealant, cable guide pipe realize seamless bonding; Add the water guide design of rain cover; Be rejected to water and other objectionable impurities beyond the cable guide pipe, stop its erosion damage cable body and ground tackle structure.
2, the top elastic sealant of the utility model all adopts bi-component polysulfide preserving and sealing glue with the filling elastic sealant; Gather sulphur preserving and sealing adhesive curing elastomer-forming under the normal temperature; Have excellent oil resistant, water-fast, ageing-resistant, decay resistance, and good springiness, extensibility is high, adhesion stress is strong, can be with cable body and mfg. metal cord conduit realization elastic bonding; The brittle cracking phenomenon can not take place; Good springiness simultaneously can not have influence on the damping effect of the built-in damper of cable guide pipe, simultaneously damper is played a very good protection.
3, the utility model is having wide application aspect the bridge cable water-tight corrosion-proof, and the raising drag-line is established with life-span, reduction maintaining cost, raising full-bridge application life and bridge security aspect has extremely important meaning.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is done further to specify.
As shown in Figure 1, a kind of drag-line cable guide pipe sealing corrosion structure comprises rain cover 11, top elastic packing glue-line 10, fills elastic packing glue-line 7, anchor head protective cover 1, cable guide pipe 5 and anchor plate 3; Cable guide pipe 5 is fixed on the anchor plate 3, and cable body 4 is installed in the cable guide pipe 5, and is anchored in anchor plate 3 end faces through ground tackle 2; Anchor head protective cover 1 covers ground tackle 2, and is connected with anchor plate 3 end face seals, and the beam face is exposed on cable guide pipe 5 tops; Be provided with rain cover 11 in cable guide pipe 5 upper ends, rain cover 11 is the stainless steel rain cover, and its cross sectional shape is the ladder taper; Expose cable body 4 and be outside equipped with stainless steel sheath 12; Insert in the rain cover 11 stainless steel sheath 12 lower ends, and through 10 sealings of top elastic packing glue-line, top elastic packing glue-line 10 is a bi-component polysulfide preserving and sealing glue between rain cover 11 and the cable body 4.Between cable guide pipe 5 and the cable body 4, be provided with damper 9 under the top elastic packing glue-line 10; Be provided with under the damper 9 and fill elastic packing glue-line 7; Filling elastic packing glue-line 7 is bi-component polysulfide preserving and sealing glue, and the height of filling elastic packing glue-line 7 is 500～800mm.Filling elastic packing glue-line 7 is arranged between cable guide pipe 5 and the cable body 4; Be provided with polyurethane foam layer 6 between cable body 4 under the filling elastic packing glue-line 7 and the cable guide pipe 5, be provided with transition primary coat 8 between top elastic packing glue-line 10 and the cable body 4 and between filling elastic packing glue-line 7 and the cable body 4.
During construction, cable body 4 is installed and is accomplished stretch-draw transfer rope after, cable guide pipe 5 inwalls and cable body 4 external surface clean and dry up, reach the salable construction in air-proof condition rear; Foam filled to carrying out polyamine fat in the cable guide pipe 5 from bottom to top to specified altitude (height of the height of reservation damper 9 and the filling elastic packing glue-line 7 of 500mm-800mm); In the external surface coating transition primary coat 8 of filling elastic packing glue-line 7 pairing cable bodies 4; To guarantee high density polyethylene (HDPE) and the adhesion strength of gathering sulphur preserving and sealing glue; And fill and gather sulphur preserving and sealing glue, wait to gather the adhesive curing of sulphur preserving and sealing, 5 mouthfuls built-in damper 9 is installed at cable guide pipe; Further fill and gather sulphur preserving and sealing glue, form after polysulfide sealant solidifies in the cable guide pipe 5 and fill elastic packing glue-line 7 to cable guide pipe port and equating; Fill a certain amount of polysulfide sealant at stainless steel rain cover 11 inwalls, be installed on cable guide pipe 5 upper orifices, the seam of rain cover 11 and cable guide pipe 5 is filled in also equating with gathering sulphur preserving and sealing glue; Coating between rain cover 11 and the cable body 4 (or sheath 12) gathers sulphur preserving and sealing glue, is with it to solidify the back and forms top elastic packing glue-line 10; Inspection at last exposes the sealing situation of seam areas, so far accomplishes the enforcement of drag-line cable guide pipe protection system structure.
Be noted that; The foregoing description is to the explanation of the utility model technical scheme and unrestricted; Other modification that is equal to replacement or makes of affiliated technical field those of ordinary skill according to prior art; As long as do not exceed the thinking and the scope of the utility model technical scheme, all should be included within the desired interest field of the utility model.
Claims (5)
1. drag-line cable guide pipe sealing corrosion structure; It is characterized in that: comprise rain cover (11), top elastic packing glue-line (10), fill elastic packing glue-line (7), anchor head protective cover (1), cable guide pipe (5) and anchor plate (3); Cable guide pipe (5) is fixed on the anchor plate (3); Cable body (4) is installed in the cable guide pipe (5), and is anchored in anchor plate (3) end face through ground tackle (2), and anchor head protective cover (1) covers ground tackle (2); And be connected with anchor plate (3) end face seal; The beam face is exposed in cable guide pipe (5) end, is provided with rain cover (11) in cable guide pipe (5) upper end, exposes cable body (4) and is outside equipped with stainless steel sheath (12); Insert in the rain cover (11) stainless steel sheath (12) lower end; Through top elastic packing glue-line (10) sealing, between cable guide pipe (5) and the cable body (4), be provided with damper (9) under the top elastic packing glue-line (10), be provided with filling elastic packing glue-line (7) under the damper (9) between rain cover (11) and the cable body (4); Fill elastic packing glue-line (7) and be arranged between cable guide pipe (5) and the cable body (4), the filling elastic sealant is provided with polyurethane foam layer (6) between the cable body (4) under (7) and the cable guide pipe (5) layer by layer.
2. drag-line cable guide pipe sealing corrosion structure according to claim 1 is characterized in that: described top elastic packing glue-line (10) is with filling elastic packing glue-line (7) and gathers sulphur preserving and sealing glue.
3. drag-line cable guide pipe sealing corrosion structure according to claim 1, it is characterized in that: the height of described filling elastic packing glue-line (7) is 500～800mm.
4. drag-line cable guide pipe sealing corrosion structure according to claim 1, it is characterized in that: described rain cover (11) is the stainless steel rain cover, and its cross sectional shape is unitary tapered, or is the ladder taper.
5. drag-line cable guide pipe sealing corrosion structure according to claim 1 is characterized in that: be provided with transition primary coat (8) between described top elastic packing glue-line (10) and the cable body (4) and between filling elastic packing glue-line (7) and the cable body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120553490XU CN202416177U (en) | 2011-12-27 | 2011-12-27 | Stay cable guide pipe sealing and corrosion preventing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120553490XU CN202416177U (en) | 2011-12-27 | 2011-12-27 | Stay cable guide pipe sealing and corrosion preventing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202416177U true CN202416177U (en) | 2012-09-05 |
Family
ID=46740956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120553490XU Expired - Fee Related CN202416177U (en) | 2011-12-27 | 2011-12-27 | Stay cable guide pipe sealing and corrosion preventing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202416177U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194961A (en) * | 2013-03-27 | 2013-07-10 | 天津市市政工程设计研究院 | Bridge pier column under high-concentration salt solution corrosion environment |
| CN104695327A (en) * | 2015-03-03 | 2015-06-10 | 江苏法尔胜缆索有限公司 | Beam-end embedded pipe sealing structure for stayed cable and sling |
| CN108035256A (en) * | 2018-01-31 | 2018-05-15 | 中铁大桥(郑州)缆索有限公司 | A kind of bridge cable waterproof sealing system |
-
2011
- 2011-12-27 CN CN201120553490XU patent/CN202416177U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194961A (en) * | 2013-03-27 | 2013-07-10 | 天津市市政工程设计研究院 | Bridge pier column under high-concentration salt solution corrosion environment |
| CN104695327A (en) * | 2015-03-03 | 2015-06-10 | 江苏法尔胜缆索有限公司 | Beam-end embedded pipe sealing structure for stayed cable and sling |
| CN108035256A (en) * | 2018-01-31 | 2018-05-15 | 中铁大桥(郑州)缆索有限公司 | A kind of bridge cable waterproof sealing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20121227 |