CN110485298A - A kind of installation method of replaceable rear-mounted suspension cable humidity sensor - Google Patents
A kind of installation method of replaceable rear-mounted suspension cable humidity sensor Download PDFInfo
- Publication number
- CN110485298A CN110485298A CN201910602995.1A CN201910602995A CN110485298A CN 110485298 A CN110485298 A CN 110485298A CN 201910602995 A CN201910602995 A CN 201910602995A CN 110485298 A CN110485298 A CN 110485298A
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- steel pipe
- steel
- humidity sensor
- anchorage
- interim
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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
-
- 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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of installation methods of replaceable rear-mounted suspension cable humidity sensor, the described method comprises the following steps: Step 1: preparing the lesser interim steel wire of one or more diameter；Step 2: one end of above-mentioned interim steel wire to be interted to the steel pipe of one section of certain length；Step 3: the above-mentioned interim steel wire for being cased with steel pipe is arranged in strand outer surface, and with high density polyethylene (HDPE) sheath hard-pressed bale；Step 4: connecting cylinder is inserted at the strand end in step 3, and the end of connecting cylinder is fixed with anchorage；Step 5: the high density polyethylene (HDPE) sheath outside the strand being located in anchorage is stripped, pass through perfusion anchoring filling agent and anchorage anchor connection；Step 6: interim steel wire is fused at upper filling anchor face position；Step 7: the interim steel wire of fusing is extracted out from steel pipe；Step 8: the humidity sensor for monitoring humidity is inserted into steel pipe, and drawn by lead, the pre-buried of humidity sensor is completed in the sealing such as steel tube end part rubber stopper.
Description
Technical field
The present invention relates to a kind of installation methods of suspension cable humidity sensor, are mainly used for suspension cable, the suspension cable of cable-stayed bridge
The hoist cable of bridge and the hoist cable of bowstring arch bridge.
Background technique
Steel wire is that bridge stay cable often uses key structure material, and the service life is directly related to the safety of bridge structure.Corrosion
It is to cause bridge stay cable by the key factor of service life reduction.Suspension cable, which is exposed to temperature change in environment, may result in oblique pull
Condensed water is generated inside rope, meanwhile, suspension cable external protection high density polyethylene (HDPE) the ultraviolet light the effects of under to generate aging damaged,
Rainwater etc. can be made to enter inside cable body and corrode steel tendon or steel strand wires, in some instances it may even be possible to the phenomenon that will appear fracture of wire.Cause
This, the continuous humidity monitored on-line inside cable body is the key that understand cable body steel wire corrosion condition.
And humidity sensor is the basis realizing cable body humidity and accurately, reliably monitoring in the intracorporal reasonable Arrangement of rope.Currently,
The arrangement of humidity sensor is to detect the intracorporal tide of rope by installing humidity sensor in anchor structure for main push-towing rope mostly
Wet degree is equipped with number if Chinese patent CN201310146524.7 discloses a kind of stay cable dehumidification protective system in cable body
The intracorporal moist degree of rope can be monitored in real time in a humidity sensor, and then whether control air intake apparatus and vacuum pump need work
Make；Separately there is Chinese patent CN201510039419.2 to disclose a kind of inclined cable girder anchorage zone dehumidification system and method, each
A Temperature Humidity Sensor is equipped with inside sleeve top, for detecting the humidity in sleeve.It can from the above-mentioned published patent
Out, the humidity sensor in existing suspension cable is all fixed in cable body or anchorage zone, once installing once can not
Replacement, unless entire suspension cable is removed, can not recur if humidity sensor has reached the service life of itself to detection
The effect of humidity.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings, proposes the installation side of replaceable rear-mounted suspension cable humidity sensor
Method is monitored internal humidity condition by humidity sensor pre-buried inside suspension cable, prevents from breaking because humidity is excessively high
Silk phenomenon, improves the service life of suspension cable, while the humidity sensor can be replaced at any time.
The object of the present invention is achieved like this: a kind of installation method of replaceable rear-mounted suspension cable humidity sensor,
It the described method comprises the following steps:
Step 1: prepare the steel tendon that is made of several parallel steel wires and be arranged in steel tendon outer surface one or more
Interim steel wire；
Step 2: the lower end of the interim steel wire wears steel pipe；
Step 3: the above-mentioned interim steel wire for being cased with steel pipe is passed through high density polyethylene (HDPE) sheath hard-pressed bale structure with parallel steel tendon
At the strand of suspension cable；
Step 4: drawing downwards the strand in step 3 to connecting cylinder, anchorage；
The high density polyethylene (HDPE) sheath of the strand lower end outside the strand being located in anchorage is stripped Step 5: stripping, will be shelled
Interim steel wire after set passes through connecting cylinder with parallel steel tendon, and the anchorage zone fixed to anchorage of scattering is cased with the institute of the steel pipe
It states interim steel wire lower end and is also drawn to the anchorage zone of anchorage, and the upper end for controlling steel pipe is located at the upper anchoring face of anchorage zone or more；
Step 6: cut off interim steel wire at the upper end of steel pipe, by perfusion anchoring filling agent by steel tendon and steel pipe together
Anchoring；
Step 7: extract the interim steel wire remained in steel pipe after cutting from steel pipe lower end out after anchoring filling agent solidification,
So that steel pipe is hollow for arranging humidity sensor；
Steel pipe is implanted into from steel pipe lower end Step 8: the humidity sensor of humidity will be monitored, and the lead of humidity sensor is from steel
Pipe is drawn, then is drawn out to other than anchorage；
Or the lead for the humidity sensor being embedded in parallel wire unit is pierced by downwards anchorage zone again from steel pipe upper end
It draws other than anchorage, the lower end of steel pipe seals with rubber stopper, and completes the installation of humidity sensor.
Preferably, pass through perfusion epoxy chill casting filler anchor connection between the anchorage and strand.
Preferably, the interim gauge of wire is 5~20mm.
Preferably, the pipe diameter is steel wire diameter+0.5mm, and for steel pipe with a thickness of 0.01~05mm, length of steel pipe is upper
Anchor face is filled to the lower length for filling anchor face.
Preferably, the interim steel wire in anchorage is fused by the way of laser melting in step 6.
Preferably, air hole is offered in the body upper surface that the steel pipe exposes anchoring face on anchorage zone.
Preferably, the steel tendon outer surface being made of several parallel steel wires is provided with more interim steel wires, described to face
Shi Gangsi is evenly arranged around steel tendon outer surface.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention detects internal humidity condition by humidity sensor pre-buried inside cable, prevents because of humidity mistake
It is high and fracture of wire phenomenon occur, improve the service life of cable.
2, by arranging interim steel wire, and the part that interim steel wire is located at anchorage zone is put on into steel pipe, after completing anchoring
The fusing extraction of the interim steel wire in steel pipe will be located at, humidity sensor is then implanted into steel duct, is implanted into this way
Humidity sensor can be replaced at any time, it is ensured that the normal work of humidity detection.
Detailed description of the invention
Fig. 1 is the line structure schematic diagram of pre-buried humidity sensor in the embodiment of the present invention.
Fig. 2 is the strand cross-sectional view of pre-buried humidity sensor in the embodiment of the present invention.
Wherein:
Strand 1
Steel wire 2
Sheath 3
Connecting cylinder 4
Anchorage 5
Interim steel wire 6
Steel pipe 7.
Specific embodiment
Referring to Fig. 1,2, the installation method of the replaceable rear-mounted suspension cable humidity sensor of one kind involved in the present embodiment, institute
Stating suspension cable includes strand 1, and the strand 1 includes several parallel steel wires 2 and the interim steel wire 6 for being arranged in 2 outer surface of steel wire,
One end of interim steel wire 6 is cased with steel pipe 8, and the 1 hard-pressed bale high density polyethylene (HDPE) sheath 3 of strand, 1 both ends of strand are cased with connection
Cylinder 4,4 outer end of connecting cylinder are equipped with anchorage 5, and by perfusion anchoring filling agent connection between anchorage 5 and strand 1, the anchorage 5 is in bridge pier
On, in order to be monitored to the humidity in strand 1, realized by way of pre-buried fibre optical sensor, the method includes with
Lower step:
Step 1: prepare the steel tendon that is made of several parallel steel wires and be arranged in steel tendon outer surface one or more
The lesser interim steel wire 7 of diameter, interim gauge of wire is 5~20mm, when more interim steel wires are arranged, by more temporary steels
Silk is arranged around the outer surface of parallel wire unit；
Step 2: the lower end of the interim steel wire wears steel pipe 8, the pipe diameter is steel wire diameter+0.5mm, namely
For 5.5~20.5mm, steel pipe is with a thickness of 0.01~05mm, preferably 0.1mm, it is therefore an objective to prevent steel wire from being anchored by anchoring filling agent, steel
Length of tube is length of the upper filling anchor face to lower filling anchor face；
Step 3: the above-mentioned interim steel wire for being cased with steel pipe is passed through high density polyethylene (HDPE) sheath hard-pressed bale structure with parallel steel tendon
At the strand of suspension cable；
Step 4: drawing downwards the strand in step 3 to connecting cylinder, anchorage；
The high density polyethylene (HDPE) sheath of the strand lower end outside the strand being located in anchorage is stripped Step 5: stripping, will be shelled
Interim steel wire after set passes through connecting cylinder with parallel steel tendon, and the anchorage zone fixed to anchorage of scattering is cased with the institute of the steel pipe
It states interim steel wire lower end and is also drawn to the anchorage zone of anchorage, and the upper end for controlling steel pipe is located at the upper anchoring face of anchorage zone or more,
The steel tube end part for being exposed to anchorage zone anchoring face or more is provided with air hole on its pipe shaft, makes the air on anchorage zone top can be with
Flowed in steel pipe through air hole, enable to stay in humidity sensor in steel pipe to the humidity in anchorage zone top i.e. connecting cylinder into
Row detection；
Step 6: cutting off interim steel wire at the upper end of steel pipe, pass through perfusion anchoring filling agent and anchorage anchor connection；
Step 7: after anchoring filling agent solidification, by the interim steel wire of above-mentioned fusing remained in steel pipe from steel pipe lower end
Extraction, so that steel pipe is hollow for arranging humidity sensor；
Step 8: the humidity sensor for monitoring humidity is extend into steel pipe from anchorage lower end and is sent along steel pipe to steel pipe
Upper end is exposed to anchorage zone, the lead of humidity sensor is then drawn and can be further drawn out to outside anchorage from steel pipe lower end,
The sealing such as lower end rubber stopper of steel pipe, completes the pre-buried of humidity sensor.
As a kind of deformation of above embodiment, the set-up mode of humidity sensor, which can be, will be embedded in parallel steel wire
The lead of humidity sensor in beam is pierced by downwards anchorage zone from steel pipe upper end and draws other than anchorage again, and the lower end of steel pipe is used
Rubber stopper sealing, completes the installation of humidity sensor.When replacing to humidity sensor in the later period, it is initially embedded in parallel steel
Humidity sensor in tow can not have to take out replacement, directly be implanted into the humidity sensor of replacement from steel pipe lower end.
Claims (6)
1. a kind of installation method of replaceable rear-mounted suspension cable humidity sensor, it is characterised in that: the method includes following
Step:
Step 1: prepare the steel tendon that is made of several parallel steel wires and be arranged in steel tendon outer surface one or more is interim
Steel wire；
Step 2: the lower end of the interim steel wire wears steel pipe；
Step 3: the above-mentioned interim steel wire for being cased with steel pipe is made up of tiltedly with parallel steel tendon high density polyethylene (HDPE) sheath hard-pressed bale
The strand of drag-line；
Step 4: drawing downwards the strand in step 3 to connecting cylinder, anchorage；
Step 5: the high density polyethylene (HDPE) sheath of the strand lower end outside the strand being located in anchorage is stripped, by facing after stripping set
Shi Gangsi and parallel wire unit pass through connecting cylinder, and the anchorage zone fixed to anchorage of scattering is cased with the temporary steel of the steel pipe
Silk lower end is also drawn to the anchorage zone of anchorage, and the upper end for controlling steel pipe is located at the upper anchoring face of anchorage zone or more；
Step 6: cutting off interim steel wire at the upper end of steel pipe, parallel steel wire and steel pipe one are unmoored by perfusion anchoring filling agent
Gu in anchorage；
Step 7: extract the interim steel wire remained in steel pipe after above-mentioned cutting from steel pipe lower end out after anchoring filling agent solidification,
So that steel pipe is hollow for arranging humidity sensor；
Step 8: the humidity sensor of humidity will be monitored out of the implantation of steel pipe lower end steel pipe, and the lead of humidity sensor is from steel
Pipe lower end is drawn and is drawn out to except anchorage again, or by the lead for the humidity sensor being embedded in parallel wire unit from steel pipe
End is pierced by anchorage zone downwards and is drawn out to other than anchorage again, and the lower end of steel pipe seals with rubber stopper, and completes humidity sensor
Installation.
2. the installation method of replaceable rear-mounted suspension cable humidity sensor according to claim 1, it is characterised in that: institute
It states between anchorage and strand through perfusion epoxy chill casting filler anchor connection.
3. the installation method of replaceable rear-mounted suspension cable humidity sensor according to claim 1, it is characterised in that: institute
Stating interim gauge of wire is 5~20mm.
4. the installation method of replaceable rear-mounted suspension cable humidity sensor according to claim 1, it is characterised in that: institute
Stating pipe diameter is steel wire diameter+0.5mm, and for steel pipe with a thickness of 0.01~05mm, length of steel pipe is upper filling anchor face to lower filling anchor face
Length.
5. the installation method of replaceable rear-mounted suspension cable humidity sensor according to claim 1, it is characterised in that: In
The surface of the steel pipe offers air hole.
6. the installation method of replaceable rear-mounted suspension cable humidity sensor according to claim 1, it is characterised in that: institute
It states the steel tendon outer surface being made of several parallel steel wires and is provided with more interim steel wires, the interim steel wire is outside steel tendon
Surface is evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602995.1A CN110485298B (en) | 2019-07-05 | 2019-07-05 | Mounting method of replaceable rear-mounted stay cable humidity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602995.1A CN110485298B (en) | 2019-07-05 | 2019-07-05 | Mounting method of replaceable rear-mounted stay cable humidity sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110485298A true CN110485298A (en) | 2019-11-22 |
| CN110485298B CN110485298B (en) | 2021-10-15 |
Family
ID=68546627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910602995.1A Active CN110485298B (en) | 2019-07-05 | 2019-07-05 | Mounting method of replaceable rear-mounted stay cable humidity sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN110485298B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526685A (en) * | 2022-02-15 | 2022-05-24 | 柳州欧维姆机械股份有限公司 | Replaceable fiber grating intelligent inhaul cable and replacement method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114526685A (en) * | 2022-02-15 | 2022-05-24 | 柳州欧维姆机械股份有限公司 | Replaceable fiber grating intelligent inhaul cable and replacement method thereof |
| CN114526685B (en) * | 2022-02-15 | 2023-06-13 | 柳州欧维姆机械股份有限公司 | Replaceable fiber bragg grating intelligent inhaul cable and replacement method thereof |
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| Publication number | Publication date |
|---|---|
| CN110485298B (en) | 2021-10-15 |
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