CN110387818A - Tube expansion sealing type guy cable and its application method - Google Patents
Tube expansion sealing type guy cable and its application method Download PDFInfo
- Publication number
- CN110387818A CN110387818A CN201910647069.6A CN201910647069A CN110387818A CN 110387818 A CN110387818 A CN 110387818A CN 201910647069 A CN201910647069 A CN 201910647069A CN 110387818 A CN110387818 A CN 110387818A
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- China
- Prior art keywords
- guide pipe
- anchorage
- air bag
- shield
- cable guide
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Classifications
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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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to tube expansion sealing type guy cable and its application methods, including cable body and pre-buried cable guide pipe, shield is welded at the upper port outer of pre-buried cable guide pipe, airbag sealing unit is installed in the upper port of pre-buried cable guide pipe, pre-buried cable guide pipe lower end bore inwardly welds dead ring, first air bag is installed in the upper opening of the shield, block is machined on inner wall among shield, the top of pre-buried cable guide pipe is against on block, and the airbag sealing unit includes the first baffle ring, the second baffle ring and the second air bag.Above-mentioned tube expansion sealing type guy cable and its application method; pass through quick inflation after installation is complete with the first air bag and the second air bag; achieve the purpose that completely cut off its inner space; sealing effect is improved, gasket is sealed, and zinc-plated outer surface is welded; further improve the performance of sealing; it is sealed isolation using the screw thread of sealing ring and engagement, cooperates above-mentioned polysulfide rubber sealing compound, the better effect of protection.
Description
Technical field
The present invention relates to drag-lines and application method, especially tube expansion sealing type guy cable and its application method.
Background technique
Drag-line is the superstructure of cable-stayed bridge, is the most important stressed member of cable-stayed bridge, carries the gravity of bridge floor.Drag-line
Security relationship is related to the safety of pedestrian and driving on bridge to the safe operation of bridge.Drag-line is made of anchorage and cable body, cable body
It is generally made of high-strength galvanized steel wire and polyethylene sheath, polyethylene sheath plays protection antisepsis, anchorage position to steel wire
In cable body both ends.From the point of view of existing highway bridge drag-line anti-corrosion status, in general in entire cable systems, anchorage position is due to normal
It is year exposed to be easier to weather in air, the final safety for influencing bridge.Although anchorage can be hidden with cable body connecting portion
It ensconces in cable guide pipe, can prevent rainwater from directly contacting anchorage, but be also not complete sealing space in cable guide pipe, it cannot
Guarantee its internal lower humidity of holding；In addition, the tail end of anchorage is also susceptible to the position of moisture attacks.Carry out anchorage portion
The protection of position, most important for drag-line safety and bridge security, this is the key that extend drag-line and bridge service life.With
Means of defence toward anchorage position is usually that anchorage penetrates after cable guide pipe to fill part sealing material is protected in cable guide pipe
Shield, then in conduit mouth addition waterproof cover etc., but with the increase of drag-line service life, in addition cable body constantly shakes, it is close
The aging of closure material, these safeguard procedures are by partial failure.
Summary of the invention
In view of the above situation, it is necessary to which a kind of tube expansion sealing type guy cable that sealing performance can be improved and its use are provided
Method.
A kind of tube expansion sealing type guy cable, including cable body and pre-buried cable guide pipe weld at the upper port outer of pre-buried cable guide pipe
Shield is taken over control, airbag sealing unit is installed in the upper port of pre-buried cable guide pipe, pre-buried cable guide pipe lower end bore is inwardly welded tightly
Gu ring, the upper opening of the shield is interior to install the first air bag, block, pre-buried cable guide pipe are machined on the inner wall among shield
Top be against on block, the airbag sealing unit include the first baffle ring, the second baffle ring and the second air bag, the first baffle ring installation
On the inner wall of pre-buried cable guide pipe, the second baffle ring is mounted on the inner wall of block, the both ends of the second air bag respectively with the first baffle ring
Connect with the second baffle ring, anchorage is engaged in weld anchor cushion cover on the dead ring, the inside of anchor cushion cover, is engaged with and covers on anchor cushion cover
Anchorage protective jacket outside anchorage, fixed cable body sequentially passes through airbag sealing unit in anchorage, the first air bag extends to protection
The outside of cover.
Preferably, threading on the outer wall of anchor cushion cover, and the annular groove being located at below external screw thread is nested with sealing ring, anchor
The internal screw thread processed in tool protective jacket opening is meshed with external screw thread, and the sealing strip below anchorage protective jacket seals phase with sealing ring
It connects.
Preferably, the gasket covered outside anchorage, the outer peripheral surface of gasket are connected between dead ring and anchor cushion cover
It is upper zinc-plated for welding, coated with polysulfide rubber sealing compound on excess-three surface, respectively with dead ring, anchor cushion cover and anchorage it
Between be tightly connected.
Preferably, shield and cable body and pre-buried cable guide pipe and rope are filled respectively after the first air bag and the inflation of the second air bag
Space between body.
Preferably, the junction of shield and cable body welding is covered on the cover plate outside the first air bag.
The application method of tube expansion sealing type guy cable, comprising the following steps:
S1: anchorage is screwed in anchor cushion cover, and anchor cushion cover is moved to the middle part of anchorage, and the both ends of anchorage stop after all exposing,
The connecting cylinder of anchorage and one end of cable body are mutually fixed, and the other end of cable body passes through pre-buried cable guide pipe and shield；
S2: anchorage protective jacket and the external engagement of anchor cushion cover are fixed, and sealing cushion cover, which is placed on anchorage in the outside of anchorage, to be prevented
Between sheath and anchor cushion cover, the two is welded, weld is seamless；
S3: after cable body is dragged directly, for shielding cover in the upper opening of pre-buried cable guide pipe, the top of pre-buried cable guide pipe is against block
On, shield and pre-buried cable guide pipe junction are welded, cover plate is stuck in the outside of shield；
S4: the gap between pre-buried cable guide pipe and shield and cable body is filled to the first air bag and the inflation of the second air bag.
Preferably, in step S4, the valve inside of the first air bag and the second air bag is in the outside of pre-buried cable guide pipe.
1. above-mentioned tube expansion sealing type guy cable and its application method, it is machined with block on the inner wall among shield, is kept off
The section of block is triangular shape, and the top of pre-buried cable guide pipe is against on block, and block, which plays, carries out pre-buried cable guide pipe top position
The purpose of support,
2. being filled respectively after above-mentioned tube expansion sealing type guy cable and its application method, the first air bag and the inflation of the second air bag
The junction welding of space between shield and cable body and pre-buried cable guide pipe and cable body, shield and cable body is covered on first
Cover plate outside air bag, the first air bag and the second air bag pass through quick inflation after installation is complete, reach and completely cut off in it
The purpose in portion space improves sealing effect.
3. above-mentioned tube expansion sealing type guy cable and its application method, be coated with polysulfide rubber sealing compound gasket and remaining
After component is contacted, using itself performance, the gap between dead ring, anchor cushion cover and anchorage is sealed by gasket,
Zinc-plated outer surface is welded, and further improves the performance of sealing, external rainwater or gas in corrosion welding layer
When, also there is polysulfide rubber sealing compound to continue to seal its junction, dual-seal duplicate protection.
4. above-mentioned tube expansion sealing type guy cable and its application method, the sealing strip and sealing ring below anchorage protective jacket are close
Envelope connects, and is sealed isolation to the bottom of anchorage protective jacket using sealing ring and the screw thread of engagement, is cooperating above-mentioned polysulfide
Rubber seal cream, the better effect of protection.
Detailed description of the invention
Fig. 1 is the air bag closed state figure of the embodiment of the present invention；
Fig. 2 is the air bag open state figure of the embodiment of the present invention；
Fig. 3 is the A enlarged drawing of the embodiment of the present invention；
Fig. 4 is the anchor cushion cover connection figure of the embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment one:
Referring to Figure 1-2, the tube expansion sealing type guy cable of the embodiment of the present invention, including cable body 1 and pre-buried cable guide pipe 2, in advance
Welding shield 21 at the upper port outer of cable guide pipe 2 is buried, shield 21 is that inclined-plane can allow rainwater above quickly to fall
It is pre-buried, while the top opening of pre-buried cable guide pipe 2 being sealed, installation air sac sealing fills in the upper port of pre-buried cable guide pipe 2
3 are set, pre-buried 2 lower end bore of cable guide pipe inwardly welds dead ring 22, and the internal diameter of dead ring 22 is greater than cable body 1, it can be passed through
It wears, the first air bag 211 is installed in the upper opening of shield 21, is machined with block 212, block on the inner wall among shield 21
212 section is triangular shape, and the top of pre-buried cable guide pipe 2 is against on block 212, and block 212 is played to pre-buried 2 top of cable guide pipe
The purpose that position is supported, airbag sealing unit 3 include the first baffle ring 31, the second baffle ring 32 and the second air bag 33, first gear
Ring 31 is mounted on the inner wall of pre-buried cable guide pipe 2, and the second baffle ring 32 is mounted on the inner wall of block 212, and the two of the second air bag 33
End connects with the first baffle ring 31 and the second baffle ring 32 respectively, the first baffle ring 31 and the second baffle ring 32 by the position of the second air bag 33 into
Row is fixed, and fixed cable body 1 sequentially passes through airbag sealing unit 3 in anchorage 5, the first air bag 211 extends to the outer of shield 21
Portion protects the junction between cable body 1 and anchorage 5 using these devices, the first air bag 211 and the inflation of the second air bag 33
Fill the space between shield 21 and cable body 1 and pre-buried cable guide pipe 2 and cable body 1, the company of shield 21 and cable body 1 respectively afterwards
The place's of connecing welding is covered on the cover plate outside the first air bag 211, and the first air bag 211 and the second air bag 33 are after installation is complete by fast
The inflation of speed achievees the purpose that completely cut off its inner space, improves sealing effect.
Refer to 3, be connected with the gasket 7 covered outside anchorage 5 between dead ring 22 and anchor cushion cover 4, gasket 7 it is outer
It is zinc-plated for welding on circle surface, coated with polysulfide rubber sealing compound on excess-three surface, respectively with dead ring 22, anchor cushion cover
Be tightly connected between 4 and anchorage 5, be coated with polysulfide rubber sealing compound gasket 7 contacted with remaining part after, utilize it
Gap between dead ring 22, anchor cushion cover 4 and anchorage 5 is sealed by body performance, gasket 7, and zinc-plated outer surface is welded
It connects, further improves the performance of sealing, external rainwater or gas when corroding welding layer, also there is polysulfide rubber sealing
Cream continues to seal its junction, dual-seal duplicate protection.
Fig. 4 is referred to, anchorage 5 is engaged in weld anchor cushion cover 4 on dead ring 22, the inside of anchor cushion cover 4, engages on anchor cushion cover 4
There is the anchorage protective jacket 6 covered outside anchorage 5, achieve the purpose that Fast Installation using the engagement system of screw thread, while can also be with
It is easy to disassemble, it is quickly replaced or is repaired, threading 41 on the outer wall of anchor cushion cover 4, and it is located at 41 lower section of external screw thread
Annular groove be nested with sealing ring 42, the internal screw thread processed in the opening of anchorage protective jacket 6 is meshed with external screw thread 41, and anchorage protects
Sealing strip and sealing ring 42 sealing of 6 lower section of set connect, using sealing ring 42 and the screw thread engaged to the bottom of anchorage protective jacket 6
Portion is sealed isolation, is cooperating above-mentioned polysulfide rubber sealing compound, the better effect of protection.
The application method of tube expansion sealing type guy cable, comprising the following steps:
Step 1: anchorage 5 is screwed in anchor cushion cover 4, anchor cushion cover 4 is moved to the middle part of anchorage 5, and the both ends of anchorage 5 are all revealed
Stop after out, the connecting cylinder of anchorage 5 is mutually fixed with one end of cable body 1, and the other end of cable body 1 passes through pre-buried cable guide pipe 2 and protection
Cover 21；
Step 2: anchorage protective jacket 6 and the external engagement of anchor cushion cover 4 are fixed, and 7 sets of gasket are placed in the external of anchorage 5
Between anchorage protective jacket 6 and anchor cushion cover 4, the two is welded, weld is seamless；
Step 3: after cable body 1 is dragged directly, 21 sets of the shield upper openings in pre-buried cable guide pipe 2, the top of pre-buried cable guide pipe 2
End is against on block 212, and shield 21 and 2 junction of pre-buried cable guide pipe are welded, and cover plate is stuck in the outside of shield 21；
Step 4: pre-buried cable guide pipe 2 and shield 21 and cable body 1 are filled to the first air bag 211 and the inflation of the second air bag 33
Between gap, the valve inside of the first air bag 211 and the second air bag 33 is in the outside of pre-buried cable guide pipe 2.
Embodiment two:
The tube expansion sealing type guy cable of the embodiment of the present invention, including cable body 1 and pre-buried cable guide pipe 2, pre-buried cable guide pipe 2 it is upper
Shield 21 is welded at the outer of port, specific structure is as shown in Figure 1, same with embodiment 1.
The present embodiment installation steps and embodiment 1 are same.
The present embodiment in use, successively carry out as follows:
Step 1: anchorage 5 is inserted into anchor cushion cover 4, the both ends of anchorage 5 stop after all exposing, by anchorage 5 and anchor cushion cover 4
Junction welding, the connecting cylinder of anchorage 5 are mutually fixed with one end of cable body 1, and the other end of cable body 1 passes through pre-buried cable guide pipe 2 and prevents
Shield 21；
Step 2: anchorage protective jacket 6 and the external engagement of anchor cushion cover 4 are fixed, and 7 sets of gasket are placed in the external of anchorage 5
Between anchorage protective jacket 6 and anchor cushion cover 4, the two is welded, weld is seamless；
Step 3: after cable body 1 is dragged directly, 21 sets of the shield upper openings in pre-buried cable guide pipe 2, the top of pre-buried cable guide pipe 2
End is against on block 212, and shield 21 and 2 junction of pre-buried cable guide pipe are welded, and cover plate is stuck in the outside of shield 21；
Step 4: pre-buried cable guide pipe 2 and shield 21 and cable body 1 are filled to the first air bag 211 and the inflation of the second air bag 33
Between gap, the valve inside of the first air bag 211 and the second air bag 33 is in the outside of pre-buried cable guide pipe 2.
Embodiment three:
The tube expansion sealing type guy cable of the embodiment of the present invention, including cable body 1 and pre-buried cable guide pipe 2, pre-buried cable guide pipe 2 it is upper
Shield 21 is welded at the outer of port, specific structure is as shown in Figure 1, same with embodiment 1.
The present embodiment installation steps and embodiment 1 are same.
The present embodiment in use, successively carry out as follows:
Step 1: anchorage 5 is screwed in anchor cushion cover 4, anchor cushion cover 4 is moved to the middle part of anchorage 5, and the both ends of anchorage 5 are all revealed
Stop after out, the connecting cylinder of anchorage 5 is mutually fixed with one end of cable body 1, and the other end of cable body 1 passes through pre-buried cable guide pipe 2 and protection
Cover 21；
Step 2: anchorage protective jacket 6 and the external engagement of anchor cushion cover 4 are fixed, and the two are welded, weld is seamless；
Step 3: after cable body 1 is dragged directly, 21 sets of the shield upper openings in pre-buried cable guide pipe 2, the top of pre-buried cable guide pipe 2
End is against on block 212, and shield 21 and 2 junction of pre-buried cable guide pipe are welded, and cover plate is stuck in the outside of shield 21；
Step 4: pre-buried cable guide pipe 2 and shield 21 and cable body 1 are filled to the first air bag 211 and the inflation of the second air bag 33
Between gap, the valve inside of the first air bag 211 and the second air bag 33 is in the outside of pre-buried cable guide pipe 2.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (7)
1. tube expansion sealing type guy cable, it is characterised in that: including cable body (1) and pre-buried cable guide pipe (2), pre-buried cable guide pipe (2)
Shield (21) are welded at upper port outer, airbag sealing unit (3) are installed in the upper port of pre-buried cable guide pipe (2), in advance
It buries cable guide pipe (2) lower end bore inwardly to weld dead ring (22), the first air bag is installed in the upper opening of the shield (21)
(211), it is machined with block (212) on the intermediate inner wall of shield (21), the top of pre-buried cable guide pipe (2) is against block (212)
On, the airbag sealing unit (3) includes the first baffle ring (31), the second baffle ring (32) and the second air bag (33), the first baffle ring
(31) it is mounted on the inner wall of pre-buried cable guide pipe (2), the second baffle ring (32) is mounted on the inner wall of block (212), the second air bag
(33) both ends connect with the first baffle ring (31) and the second baffle ring (32) respectively, weld anchor cushion cover (4) on the dead ring (22),
Anchorage (5) are engaged in the inside of anchor cushion cover (4), are engaged on anchor cushion cover (4) and cover the anchorage protective jacket (6) external in anchorage (5), anchor
Fixed cable body (1) sequentially passes through airbag sealing unit (3) in tool (5), the first air bag (211) extends to the outer of shield (21)
Portion.
2. tube expansion sealing type guy cable according to claim 1, it is characterised in that: processed on the outer wall of anchor cushion cover (4) outer
Screw thread (41), and the annular groove being located at below external screw thread (41) is nested with sealing ring (42), is processed in anchorage protective jacket (6) opening
Internal screw thread is meshed with external screw thread (41), and the sealing strip below anchorage protective jacket (6) connects with sealing ring (42) sealing.
3. tube expansion sealing type guy cable described in claim 1, it is characterised in that: connect between dead ring (22) and anchor cushion cover (4)
It is connected to and covers the gasket (7) external in anchorage (5), zinc-plated for welding on the outer peripheral surface of gasket (7), excess-three surface
It is upper to be coated with polysulfide rubber sealing compound, it is tightly connected between dead ring (22), anchor cushion cover (4) and anchorage (5) respectively.
4. tube expansion sealing type guy cable described in claim 1, it is characterised in that: the first air bag (211) and the second air bag (33)
The space between shield (21) and cable body (1) and pre-buried cable guide pipe (2) and cable body (1) is filled after inflation respectively.
5. tube expansion sealing type guy cable described in claim 1, it is characterised in that: the junction of shield (21) and cable body (1)
Welding is covered on the external cover plate of the first air bag (211).
6. the application method of tube expansion sealing type guy cable as described in claim 1, which comprises the following steps:
S1: anchorage (5) are screwed in anchor cushion cover (4), anchor cushion cover (4) is moved to the middle part of anchorage (5), and the both ends of anchorage (5) are all
Stop after exposing, one end of the connecting cylinder and cable body (1) of anchorage (5) is mutually fixed, and the other end of cable body (1) passes through pre-buried cable guide pipe
(2) and shield (21)；
S2: anchorage protective jacket (6) and the external engagement of anchor cushion cover (4) are fixed, and gasket (7) is covered to be placed in the external of anchorage (5)
Between anchorage protective jacket (6) and anchor cushion cover (4), the two is welded, weld is seamless；
S3: after cable body (1) is dragged directly, shield (21) covers the upper opening in pre-buried cable guide pipe (2), the top of pre-buried cable guide pipe (2)
End is against on block (212), and shield (21) and pre-buried cable guide pipe (2) junction are welded, and cover plate is stuck in shield (21)
It is external；
S4: pre-buried cable guide pipe (2) and shield (21) and cable body are filled to the first air bag (211) and the second air bag (33) inflation
(1) gap between.
7. tube expansion sealing type guy cable described in claim 1, it is characterised in that: in step S4, the first air bag (211) and
Outside of the valve inside of second air bag (33) in pre-buried cable guide pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647069.6A CN110387818A (en) | 2019-07-17 | 2019-07-17 | Tube expansion sealing type guy cable and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647069.6A CN110387818A (en) | 2019-07-17 | 2019-07-17 | Tube expansion sealing type guy cable and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110387818A true CN110387818A (en) | 2019-10-29 |
Family
ID=68285008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910647069.6A Pending CN110387818A (en) | 2019-07-17 | 2019-07-17 | Tube expansion sealing type guy cable and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110387818A (en) |
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| US20190161867A1 (en) * | 2017-11-24 | 2019-05-30 | Honshu-Shikoku Bridge Expressway Company Limited | Method for preventing corrosion of cable |
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Application publication date: 20191029 |
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