CN104695327A - Beam-end embedded pipe sealing structure for stayed cable and sling - Google Patents
Beam-end embedded pipe sealing structure for stayed cable and sling Download PDFInfo
- Publication number
- CN104695327A CN104695327A CN201510093922.6A CN201510093922A CN104695327A CN 104695327 A CN104695327 A CN 104695327A CN 201510093922 A CN201510093922 A CN 201510093922A CN 104695327 A CN104695327 A CN 104695327A
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- Prior art keywords
- pipe
- built
- embedded pipe
- packed layer
- sealing structure
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a beam-end embedded pipe sealing structure for a stayed cable and a sling. The beam-end embedded pipe sealing structure comprises an embedded pipe (3) sleeving the periphery of a beam-end stayed cable (1) in a penetrating manner; an annular clearance (B) is reserved between the embedded pipe (3) and the stayed cable (1); a waterproof hood (2) is arranged at the front end of the embedded pipe (3); the stayed cable (1) outwards penetrates through the waterproof hood (2); the beam-end embedded pipe sealing structure is characterized in that a filling layer is arranged in the annular clearance (B); a water drainage pipe (7) communicated with the annular clearance (B) is mounted on the pipe wall of the embedded pipe (3); a water inlet of the water drainage pipe (7) is positioned above the filling layer and is close to the upper surface of the filling layer. The embedded pipe sealing structure can prevent rainwater from entering the annular clearance between the embedded pipe and the stayed cable, and water gathered in the annular clearance can be discharged in time; the beam-end embedded pipe sealing structure is better in embedded pipe corrosion prevention effect.
Description
Technical field
The present invention's invention is bridge field, relates to a kind of suspension cable of bridge beam end or the built-in pipe hermetically-sealed construction of hoist cable.
Background technology
Suspension cable or hoist cable beam-ends anticorrosion, particularly how effectively to solve the problem of built-in pipe internal water accumulation and seepage, be bridge stay cable or a hoist cable beam-ends corrosion-resistant difficult problem always.It is anticorrosion that the mode generally adopted at present is that filled high polymer material solves in built-in pipe.Though this kind of filling mode has continued more than ten years, but this anti-corrosion mode also exposes many problems: when such as adopting the macromolecular material of some fluidised form to fill built-in pipe, owing to there is the static pressure of 3 ~ 4m, under the impact of the factors such as temperature and drag-line vibrations, easily there is the degraded of macromolecular material, and then bring out leakage problems; The also swelling problem of existence and polyethylene sheath material.In addition, when some foaming kind packing material is filled, once rainwater to infiltrate expanded material inner, as easy as rolling off a logly cause Foam Expansion, sclerosis, not only do not have anticorrosion object, and be difficult to during later maintenance remove.These problems bring hidden danger all can to the safe handling of bridge.
Summary of the invention
Technical problem to be solved by this invention provides a kind of suspension cable and hoist cable beam-ends built-in pipe hermetically-sealed construction for above-mentioned prior art, effectively can solve a difficult problem for built-in pipe internal water accumulation and seepage.
The present invention's adopted technical scheme that solves the problem is: a kind of suspension cable and hoist cable beam-ends built-in pipe hermetically-sealed construction, comprise the built-in pipe being set on beam-ends drag-line periphery, annular space is left between described built-in pipe and drag-line, the front end of this built-in pipe is provided with bucker, drag-line outwards passes described bucker, packed layer is provided with in described annular space, described built-in pipe tube wall is equiped with the tapping pipe connected with described annular space, the water inlet of described tapping pipe is positioned at more than described packed layer and the upper surface of this packed layer close.
Preferably, described packed layer has upper and lower two-layer, and it is sealant packed layer at the middle and upper levels, and lower floor is plastic pellet packed layer.The plastic pellet that adopted this as solid-state material, avoid degraded seepage or swelling problem that Conventional filling material easily occurs.The sealant packed layer on upper strata can effectively stop part rainwater to infiltrate the particle-filled layer of lower floor, plays the effect of filling and sealing.And the combination of preferred upper strata polysulfide sealant and lower floor PE plastic pellet.
Preferably, described bucker has taper drainage face, and the rainwater that the combination of the bucker of built-in pipe and this structure can effectively completely cut off on extraneous rainwater and drag-line under water conservancy diversion enters in annular space.
Compared with prior art, the invention has the advantages that: provide a kind of suspension cable and hoist cable beam-ends built-in pipe hermetically-sealed construction, combining the two ways of dredging and plugging mode is adopted in annular space between built-in pipe and drag-line, reach and effectively stop outside moisture to enter in built-in pipe, get rid of the rainwater that may enter in operation process simultaneously in time, realize corrosion-resistant object in built-in pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of suspension cable and hoist cable beam-ends built-in pipe hermetically-sealed construction in the embodiment of the present invention;
Fig. 2 is A portion enlarged drawing in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As depicted in figs. 1 and 2, in the present embodiment, suspension cable and hoist cable beam-ends built-in pipe hermetically-sealed construction can available protecting bridge stay cable or hoist cables, its structure is specially, comprise the built-in pipe 3 being set on beam-ends drag-line 1 periphery, be arranged on the ground tackle protective cover 4 of described built-in pipe 3 bottom and be arranged on the bucker 2 with taper drainage face of described built-in pipe 3 front end, drag-line 1 outwards passes described bucker 2, bucker 2 adopts hermetically-sealed construction with the cooperation place of drag-line 1, annular space B is formed between drag-line 1 and described built-in pipe 3, be provided with in annular space B, lower double-layer filling layer 5, 6, one section of space is retained between upper strata packed layer 6 and bucker 2, described built-in pipe 3 tube wall is equiped with the tapping pipe 7 connected with this space, the upper surface of the water inlet next-door neighbour upper strata packed layer 6 of tapping pipe 7.
The present embodiment at the middle and upper levels packed layer 6 is the polysulfide sealant packed layer that packed density is larger, and lower floor's packed layer 5 is PE plastic pellet packed layer.In conjunction with the structure of above-mentioned tapping pipe 7, the built-in pipe sealing anticorrosive structure in the present embodiment has twice water discharging structure, and together on packed layer top, another road is in packed layer bottom.First, the tapping pipe 7 being arranged on upper strata packed layer 6 upper position in built-in pipe can discharge the rainwater entered in time; Secondly, after supposing that upper strata packed layer 6 is impaired, rainwater finally arrives built-in pipe lowermost end by the gap between PE particle filled composite, because rainwater is by PE particulate filter, impurity in rainwater is all intercepted at packed layer, therefore the water of relative clean can discharge built-in pipe bottom built-in pipe, can not block the phenomenon be trapped in built-in pipe.
In addition; in the present embodiment, lower floor's packed layer is open structure; exist between plastic pellet and fill space; from the angle of protection drag-line; this structure has larger hot strength, tensile yield strength, tensile modulus of elasticity and impact strength; and compared with the packed layer of other existing forms, there is between itself and drag-line more even, flexible parcel power, turn avoid while protection drag-line and excessive radial pressure is produced to drag-line.
In the annular space that the bridge beam end built-in pipe sealing anticorrosive structure of said structure can not only prevent rainwater from entering between built-in pipe and drag-line, and achieve the ponding of discharging in time and entering in annular space.
Claims (5)
1. a suspension cable and hoist cable beam-ends built-in pipe hermetically-sealed construction, comprise the built-in pipe (3) being set on beam-ends drag-line (1) periphery, annular space (B) is left between described built-in pipe (3) and drag-line (1), the front end of this built-in pipe (3) is provided with bucker (2), drag-line (1) outwards passes described bucker (2), it is characterized in that: in described annular space (B), be provided with packed layer, described built-in pipe (3) tube wall is equiped with the tapping pipe (7) connected with described annular space (B), the water inlet of described tapping pipe (7) is positioned at more than described packed layer and the upper surface of this packed layer close.
2. suspension cable according to claim 1 and hoist cable beam-ends built-in pipe hermetically-sealed construction, is characterized in that: described packed layer has upper and lower two-layer, and it is sealant packed layer (6) at the middle and upper levels, and lower floor is plastic pellet packed layer (5).
3. suspension cable according to claim 2 and hoist cable beam-ends built-in pipe hermetically-sealed construction, is characterized in that: described sealant packed layer (6) selects polysulfide sealant.
4. suspension cable according to claim 2 and hoist cable beam-ends built-in pipe hermetically-sealed construction, is characterized in that: described plastic pellet packed layer (5) selects PE plastic pellet.
5. suspension cable according to claim 1 and hoist cable beam-ends built-in pipe hermetically-sealed construction, is characterized in that: described bucker (2) has taper drainage face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510093922.6A CN104695327B (en) | 2015-03-03 | 2015-03-03 | Suspension cable and the pre-buried tube seal structure of hoist cable beam-ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510093922.6A CN104695327B (en) | 2015-03-03 | 2015-03-03 | Suspension cable and the pre-buried tube seal structure of hoist cable beam-ends |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104695327A true CN104695327A (en) | 2015-06-10 |
| CN104695327B CN104695327B (en) | 2016-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510093922.6A Active CN104695327B (en) | 2015-03-03 | 2015-03-03 | Suspension cable and the pre-buried tube seal structure of hoist cable beam-ends |
Country Status (1)
| Country | Link |
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| CN (1) | CN104695327B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930189A (en) * | 2015-12-30 | 2017-07-07 | 上海浦江缆索股份有限公司 | The sealing prosthetic device of drag-line bucker |
| CN110453589A (en) * | 2019-07-26 | 2019-11-15 | 江苏法尔胜缆索有限公司 | A kind of intelligent beam-ends that suspension cable can be inspected sealing waterproof cap structure |
| CN114032768A (en) * | 2021-12-03 | 2022-02-11 | 柳州欧维姆机械股份有限公司 | Pipe orifice sealing structure and method for parallel steel strand inhaul cable embedded pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11280021A (en) * | 1998-03-31 | 1999-10-12 | Shinko Kosen Kogyo Kk | Saddle structural body for cable stayed bridge cable |
| JP4327834B2 (en) * | 2006-10-11 | 2009-09-09 | 株式会社ブリッジ・エンジニアリング | Waterproofing method and apparatus for cable fixing part of cable stayed bridge |
| CN202202258U (en) * | 2011-08-27 | 2012-04-25 | 上海浦江缆索股份有限公司 | Omni-sealing type inhaul cable |
| CN202416177U (en) * | 2011-12-27 | 2012-09-05 | 中铁大桥(郑州)缆索有限公司 | Stay cable guide pipe sealing and corrosion preventing structure |
| CN204551261U (en) * | 2015-03-03 | 2015-08-12 | 江苏法尔胜缆索有限公司 | Suspension cable and hoist cable beam-ends built-in pipe hermetically-sealed construction |
-
2015
- 2015-03-03 CN CN201510093922.6A patent/CN104695327B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11280021A (en) * | 1998-03-31 | 1999-10-12 | Shinko Kosen Kogyo Kk | Saddle structural body for cable stayed bridge cable |
| JP4327834B2 (en) * | 2006-10-11 | 2009-09-09 | 株式会社ブリッジ・エンジニアリング | Waterproofing method and apparatus for cable fixing part of cable stayed bridge |
| CN202202258U (en) * | 2011-08-27 | 2012-04-25 | 上海浦江缆索股份有限公司 | Omni-sealing type inhaul cable |
| CN202416177U (en) * | 2011-12-27 | 2012-09-05 | 中铁大桥(郑州)缆索有限公司 | Stay cable guide pipe sealing and corrosion preventing structure |
| CN204551261U (en) * | 2015-03-03 | 2015-08-12 | 江苏法尔胜缆索有限公司 | Suspension cable and hoist cable beam-ends built-in pipe hermetically-sealed construction |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930189A (en) * | 2015-12-30 | 2017-07-07 | 上海浦江缆索股份有限公司 | The sealing prosthetic device of drag-line bucker |
| CN110453589A (en) * | 2019-07-26 | 2019-11-15 | 江苏法尔胜缆索有限公司 | A kind of intelligent beam-ends that suspension cable can be inspected sealing waterproof cap structure |
| CN110453589B (en) * | 2019-07-26 | 2024-03-19 | 江苏法尔胜缆索有限公司 | Intelligent beam end sealing waterproof cap structure with viewable stay cable |
| CN114032768A (en) * | 2021-12-03 | 2022-02-11 | 柳州欧维姆机械股份有限公司 | Pipe orifice sealing structure and method for parallel steel strand inhaul cable embedded pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104695327B (en) | 2016-07-20 |
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