CN203904837U - Stay cable lower guide pipe rain cover early warning protection structure - Google Patents
Stay cable lower guide pipe rain cover early warning protection structure Download PDFInfo
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- CN203904837U CN203904837U CN201420337986.7U CN201420337986U CN203904837U CN 203904837 U CN203904837 U CN 203904837U CN 201420337986 U CN201420337986 U CN 201420337986U CN 203904837 U CN203904837 U CN 203904837U
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- rain cover
- suspension cable
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- downcomer
- early warning
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Abstract
The utility model relates to a stay cable lower guide pipe rain cover early warning protection structure. As a stay cable adopts a sealed lower guide pipe rain cover, the detection difficulty of the inside of the lower guide pipe is very great. The stay cable lower guide pipe rain cover early warning protection structure comprises a stay cable lower guide pipe rain cover arranged on the stay cable, wherein a glass fiber reinforced plastic protection cover annularly sheaths and is fixed on the stay cable lower guide pipe rain cover arranged on the stay cable, the upper part of the glass fiber reinforced plastic protection cover is in a cylinder shape, the inner diameter of the glass fiber reinforced plastic protection cover is identical to the outer diameter of the stay cable, the lower part of the glass fiber reinforced plastic protection cover is in a round trumpet shape, the inner diameter of the glass fiber reinforced plastic protection cover is gradually increased from top to bottom, and the gap between the top edge of the stay cable lower guide pipe rain cover and the round trumpet-shaped part of the lower part of the glass fiber reinforced plastic protection cover is circumferentially and uniformly provided with a plurality of cube rubber pad blocks. The stay cable lower guide pipe rain cover early warning protection structure has the advantages that a transparent protection cover is added outside the original waterproof cover, the double-layer protection is formed for a stay cable lower guide pipe, the inside condition of the early warning protection structure can be clearly observed, and the waterproof performance of the early warning protection structure can be checked without adopting non-destructive inspection equipment or opening the protection cover.
Description
Technical field
the utility model belongs to highway bridge construction technical field, is specifically related to a kind of suspension cable downcomer rain cover early warning protection structure.
Background technology
Cable stayed bridge is that the many drag-lines of girder are directly pulled in to a kind of bridge on bridge tower, is by the rope of the tower of pressure-bearing, tension and holds a kind of structural system that curved beam body combines.It can regard that drag-line replaces the multispan elastomeric bearing continuous beam of buttress as.It can make moment of flexure in beam body reduce, and reduces building height, has alleviated construction weight, has saved material.Suspension cable is the important Force transmission parts of cable stayed bridge, it by the vertical weight transfer of girder to king-tower.Therefore, suspension cable use state is the critical problem of cable stayed bridge maintenance.
It is suspension cable downcomer interior waterproof effect that suspension cable uses one of reflection of state.The mode of current conventional suspension cable downcomer waterproof is at the inner filled polyurethane foam of downcomer and casting type polyurethane fluid sealant, then in downcomer upper end, rain cover is set, rain cover upper end adopts high-elastic waterproof fluid sealant to seal, thereby downcomer inside is kept apart completely with external environment, anti-sealing enters the inside of conduit, therefore, rain cover itself should have extraordinary sealing.
But, owing to having adopted the downcomer rain cover of good sealing property, cause the inner detection difficult of suspension cable downcomer very large, the method of nondestructive testing at present is all difficult to be implemented to the accurate detection to downcomer interior waterproof effect, need to be for removing inspection by problematic rain cover, and remove the more complicated of work, and increase the difficulty of suspension cable maintenance, cause unnecessary waste.
In sum, current conventional suspension cable downcomer waterproof type detects and causes very large obstacle drag-line downcomer, make existing nondestructiving detecting means be difficult to accurately judge downcomer interior waterproof situation, after often needing original structure to remove, could finally determine duty, cause unnecessary economic loss, and dismounting work has certain complexity and destructiveness, social influence is large.In addition, the difficulty of testing also easily causes the undetected and flase drop of Cable Deteriorations, and normal use of cable stayed bridge caused to major hidden danger.
Summary of the invention
The purpose of this utility model is to provide a kind of suspension cable downcomer rain cover early warning protection structure, and the difficulty and the complexity that detect to overcome suspension cable downcomer that prior art causes, ensure the normal safety using of cable stayed bridge.
The technical scheme that the utility model adopts is:
A kind of suspension cable downcomer rain cover early warning protection structure, comprises the suspension cable downcomer rain cover on suspension cable, it is characterized in that:
The suspension cable downcomer rain cover top ring set of suspension cable is fixed with frp protective coverboard;
Frp protective coverboard top is cylindrical, and internal diameter is identical with suspension cable external diameter, and bottom is circular horn shape, and internal diameter increases progressively from top to bottom;
Between suspension cable downcomer rain cover apical margin and frp protective coverboard bottom circular horn shape part cushion block multiple squares, rubber is evenly set spacer ring week.
Frp protective coverboard is divided into two and half symmetrical cover bodies from diameter, the end, two ends of each half cover body is provided with the attachment lug perpendicular to half cover body outer wall, on attachment lug, be provided with connecting bolt hole, two halves cover body is involutory real also by stainless connecting bolt Joint in connecting bolt hole.
Suspension cable downcomer rain cover apical margin ring week is provided with the rain cover fluid sealant of high-elastic waterproof, and rain cover fluid sealant top arranges cushion block.
Frp protective coverboard apical margin ring week is provided with the protective cover fluid sealant of high-elastic waterproof.
The weather strip of polycyclo-rubber is set between suspension cable downcomer rain cover top inwall and suspension cable.
The utlity model has following advantage:
1, increase a protective cover in original bucker outside, even if outer protecting cover protective action lost efficacy, internal Protection cover still can play protective action, and suspension cable downcomer is formed to double shielding.
2, early warning protection structure has adopted transparent grp, can clear view early warning protection inside configuration situation, do not need to adopt non-destructive detecting device or open protective cover just can check the water resistance of early warning protection structure.If glass fiber reinforced plastic early warning protection structurally waterproof is functional, just can judge that suspension cable downcomer inside can not have water to enter.
3, early warning protection inside configuration whether have water mark exist be the whether in-problem early warning signal of suspension cable downcomer waterproof construction performance, improve the specific aim that suspension cable downcomer rain cover water resistance detects, can avoid the undetected and flase drop of suspension cable downcomer waterproof construction Performance Detection.
4, between early warning protection structure and former rain cover, be provided with 4 rubber cushion blocks, between forms gap, the water that enters early warning protection cover inside can be discharged rapidly, in addition, can also make inner air and outer air circulation, avoid early warning protection inside configuration increase in temperature, acceleration rain cover upper end high-elastic waterproof fluid sealant is aging.
5, early warning protection Structural Tectonics is simple, and dismounting, easy for installation is found, after water-proof function existing problems, can to remove and reinstall by fast dismantling, to recover its water resistance, has improved maintenance.
6, early warning protection structure has improved the property examined of downcomer water proofing property, has avoided unnecessary detection, greatly reduces the routine servicing expense of suspension cable downcomer.
Brief description of the drawings
Fig. 1 the utility model structure chart.
Fig. 2 is frp protective coverboard elevation.
Fig. 3 is frp protective coverboard half plan.
In figure, 1-frp protective coverboard, 2-connecting bolt, 3-protective cover fluid sealant, 4-cushion block, 5-suspension cable, 6-rain cover fluid sealant, 7-weather strip, 8-suspension cable downcomer rain cover, 9-connecting bolt hole.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
A kind of suspension cable downcomer rain cover early warning protection structure that the utility model relates to, comprises the suspension cable downcomer rain cover 8 on suspension cable 5, and the weather strip 7 of polycyclo-rubber is set between suspension cable downcomer rain cover 8 top inwalls and suspension cable 5.The suspension cable downcomer rain cover 8 top ring sets of suspension cable 5 are fixed with frp protective coverboard 1.1 apical margin ring week of frp protective coverboard is provided with the protective cover fluid sealant 3 of high-elastic waterproof, closed glass steel protective cover 1 suitable for reading.Because frp protective coverboard 1 adopts clear glass Steel material, can facilitate the inspection of protecting cover water resistance;
Frp protective coverboard 1 top is cylindrical, and internal diameter is identical with suspension cable 5 external diameters, and bottom is circular horn shape, and internal diameter increases progressively from top to bottom.Frp protective coverboard 1 is divided into two and half symmetrical cover bodies from diameter, the end, two ends of each half cover body is provided with the attachment lug perpendicular to half cover body outer wall, on attachment lug, be provided with connecting bolt hole 9, two halves cover body is involutory real also by stainless connecting bolt 2 Joints in connecting bolt hole 9.
8 apical margin ring weeks of suspension cable downcomer rain cover are provided with the rain cover fluid sealant 6 of high-elastic waterproof, between rain cover fluid sealant 6 apical margins and frp protective coverboard 1 bottom circular horn shape part cushion block 4 multiple squares, rubber is evenly set spacer ring week, between frp protective coverboard 1 and the rain cover fluid sealant 6 of suspension cable downcomer rain cover 8 upper ends, form gap, the water that enters early warning protection inside configuration is discharged rapidly, and early warning protection inside configuration air and extraneous formation are circulated, avoid early warning protection inside configuration increase in temperature.
Construction comprises the steps:
1, after original suspension cable downcomer rain cover to be installed 8 structure constructions complete, mounting glass steel protective cover 1, and adopt connecting bolt 2 to connect;
2, adopt protective cover fluid sealant 3 to seal the suitable for reading of frp protective coverboard 1;
3, between frp protective coverboard 1 and suspension cable downcomer rain cover 8,4 cushion blocks 4 are set, cushion block 4 should have rain cover fluid sealant 6 end faces of effective adhesive in suspension cable downcomer rain cover 8 upper ends;
4, cleaning construction plant, final acceptance of construction;
5, regularly suspension cable downcomer early warning protection structure is checked.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solutions of the utility model by reading the utility model manual, is claim of the present utility model and contains.
Claims (5)
1. a suspension cable downcomer rain cover early warning protection structure, comprises the suspension cable downcomer rain cover (8) on suspension cable (5), it is characterized in that:
Suspension cable downcomer rain cover (8) the top ring set of suspension cable (5) is fixed with frp protective coverboard (1);
Frp protective coverboard (1) top is cylindrical, and internal diameter is identical with suspension cable (5) external diameter, and bottom is circular horn shape, and internal diameter increases progressively from top to bottom;
Between suspension cable downcomer rain cover (8) apical margin and frp protective coverboard (1) bottom circular horn shape part cushion block multiple squares, rubber (4) is evenly set spacer ring week.
2. a kind of suspension cable downcomer rain cover early warning protection structure according to claim 1, is characterized in that:
Frp protective coverboard (1) is divided into two and half symmetrical cover bodies from diameter, the end, two ends of each half cover body is provided with the attachment lug perpendicular to half cover body outer wall, on attachment lug, be provided with connecting bolt hole (9), two halves cover body is involutory real also by stainless connecting bolt (2) Joint in connecting bolt hole (9).
3. a kind of suspension cable downcomer rain cover early warning protection structure according to claim 2, is characterized in that:
Be provided with the rain cover fluid sealant (6) of high-elastic waterproof suspension cable downcomer rain cover (8) apical margin ring week, rain cover fluid sealant (6) top arranges cushion block (4).
4. a kind of suspension cable downcomer rain cover early warning protection structure according to claim 3, is characterized in that:
Be provided with the protective cover fluid sealant (3) of high-elastic waterproof frp protective coverboard (1) apical margin ring week.
5. a kind of suspension cable downcomer rain cover early warning protection structure according to claim 4, is characterized in that:
The weather strip (7) of polycyclo-rubber is set between suspension cable downcomer rain cover (8) top inwall and suspension cable (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420337986.7U CN203904837U (en) | 2014-06-24 | 2014-06-24 | Stay cable lower guide pipe rain cover early warning protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420337986.7U CN203904837U (en) | 2014-06-24 | 2014-06-24 | Stay cable lower guide pipe rain cover early warning protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203904837U true CN203904837U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420337986.7U Active CN203904837U (en) | 2014-06-24 | 2014-06-24 | Stay cable lower guide pipe rain cover early warning protection structure |
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| Country | Link |
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| CN (1) | CN203904837U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012837A (en) * | 2016-07-29 | 2016-10-12 | 重庆万桥交通科技发展有限公司 | Novel stay cable HDPE waterproof jacket |
| CN108797314A (en) * | 2018-08-14 | 2018-11-13 | 中国十七冶集团有限公司 | A method of strengthening suspension bridge sunpender waterproof effect |
| CN114753251A (en) * | 2022-03-07 | 2022-07-15 | 中铁武汉勘察设计院有限公司 | Bridge pull sling anti-corrosion device and construction method thereof |
-
2014
- 2014-06-24 CN CN201420337986.7U patent/CN203904837U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012837A (en) * | 2016-07-29 | 2016-10-12 | 重庆万桥交通科技发展有限公司 | Novel stay cable HDPE waterproof jacket |
| CN108797314A (en) * | 2018-08-14 | 2018-11-13 | 中国十七冶集团有限公司 | A method of strengthening suspension bridge sunpender waterproof effect |
| CN114753251A (en) * | 2022-03-07 | 2022-07-15 | 中铁武汉勘察设计院有限公司 | Bridge pull sling anti-corrosion device and construction method thereof |
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| GR01 | Patent grant |