CN109183617A - The main push-towing rope strand and installation method of carbon fiber-containing composite material intelligent muscle - Google Patents
The main push-towing rope strand and installation method of carbon fiber-containing composite material intelligent muscle Download PDFInfo
- Publication number
- CN109183617A CN109183617A CN201810989063.2A CN201810989063A CN109183617A CN 109183617 A CN109183617 A CN 109183617A CN 201810989063 A CN201810989063 A CN 201810989063A CN 109183617 A CN109183617 A CN 109183617A
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- China
- Prior art keywords
- strand
- fiber
- towing rope
- main push
- optical fiber
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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
- E01D19/16—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
Abstract
The present invention relates to a kind of main push-towing rope strand of carbon fiber-containing composite material intelligent muscle and installation methods, including one or more carbon fibre composite intellectual rib and several steel wires, strand both ends are cased with connecting cylinder, connecting cylinder outer end is equipped with anchorage, passes through perfusion epoxy chill casting filler anchor connection between anchorage and strand；Main push-towing rope strand length is calculated first, make the optical fiber containing fiber-optic grating sensor, optical fiber containing fiber-optic grating sensor, carbon fiber and epoxy resin are fabricated to carbon fibre composite intellectual rib, one or more carbon fibre composite intellectual rib and several steel wires are formed into strand, anchorage and connecting cylinder are configured at strand both ends, optical fiber is drawn from the anchorage tail portion at strand both ends, is wired on the optical time domain reflectometer of energy detection fiber grating variation.The deformation and stress state of main push-towing rope different parts can be monitored in real time using the main push-towing rope of the strand, improve main rope of suspension bridge safety in utilization.
Description
Technical field
The present invention relates to a kind of main push-towing rope strand of carbon fiber-containing composite material intelligent muscle and installation methods, are mainly used for hanging
Cable bridge main push-towing rope.
Background technique
Main push-towing rope is the main supporting member of suspension bridge, it is difficult to replace, referred to as the lifeline of suspension bridge, generally require
100 years or more service life, during military service, main push-towing rope steel wire will receive the shadow of the corrosive mediums such as marine climate, moisture
It rings and corrodes, seriously affect safety and the durability of bridge.Therefore the reality to main push-towing rope long-term work state how is realized
When monitor, it is ensured that the safety in validity period is the key that the development of modern bridge cable technology.
Due to the geometry linear construction features of main push-towing rope itself, main rope of suspension bridge steel wire the deformation of different parts and stress simultaneously
It is not identical, such as at saddle and cord clip there is bending and the caused stress that rubs in main push-towing rope steel wire.Traditional stress mornitoring means,
That there are precision is low, stability is poor, can not obtain main push-towing rope different parts stress state is unable to real time on-line monitoring.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings, proposes a kind of main push-towing rope rope of carbon fiber-containing composite material intelligent muscle
Stock and installation method, the deformation and stress state of main push-towing rope different parts can be monitored in real time using the main push-towing rope of the strand, be main push-towing rope
Science data are provided in service phase health status, avoid risk.
The object of the present invention is achieved like this:
A kind of main push-towing rope strand of carbon fiber-containing composite material intelligent muscle, including one or more carbon fibre composite intelligence
Energy muscle and several steel wires, the carbon fibre composite intellectual rib include optical fiber, and optical fiber is equipped with several optical fiber grating sensings
Device, the fiber-optic grating sensor be installed on the main cable saddle on main cable strand, dissipate cord clip, at cord clip, middle span centre point and anchor head point
Position, strand surface pass through the band wrapping that is wrapped.
Preferably, the strand cross section is hexagon, in strand carbon fibre composite intellectual rib and steel wire radical it
Be 61,91,127 or 169.
The present invention provides a kind of installation method of the main push-towing rope strand of carbon fiber-containing composite material intelligent muscle, calculates first outstanding
Cable bridge main push-towing rope strand length finds key position and makes optical fiber in the position of strand, and according to the position of key position in light
Fiber-optic grating sensor is arranged on fibre；Then optical fiber both ends are put on into plastics loose tube, optical fiber will be contained by pultrusion molding process
Optical fiber, carbon fiber and the epoxy resin of grating sensor are fabricated to carbon fibre composite intellectual rib；Then carbon fiber is compound
The both ends of material intellectual rib are peeled off from the position containing plastics loose tube, expose optical fiber, the exposed light of stainless steel sleeve protection of pipe can be used
It is fine；One or more carbon fibre composite intellectual rib and several steel wires are formed into strand, are then wrapped with high intensity sizing
Band equally spacedly carries out shaping wrapping to strand after molding；Strand both ends be furnished with anchorage, carbon fibre composite intellectual rib and
Steel wire diverges in anchorage to be come, and is positioned with wire sub-panel；Epoxy chill casting filler is perfused in anchorage；Anchor of the optical fiber from strand both ends
Have tail portion to draw, be wired on the optical time domain reflectometer of energy detection fiber grating variation；In suspension bridge main cable construction
During one's term of military service, by optical time domain reflectometer monitor carbon fibre composite intellectual rib main push-towing rope difference key position deformation and
Stress state deforms consistent principle according to adjacent wires and carbon fibre composite intellectual rib, obtains steel wire in main push-towing rope difference
The deformation and stress state of key position.
Preferably, the fiber-optic grating sensor has high microstrain amount and high-temperature stability, and microstrain amount is up to 8000 μ ε
~16000 μ ε, heatproof is up to 180 DEG C or more.
Preferably, the epoxy resin for making carbon fibre composite intellectual rib uses high-temperature-resistant epoxy resin,
It is required that the glass transition temperature of epoxy resin is 220 DEG C.
Compared with prior art, the beneficial effects of the present invention are:
1, a kind of main push-towing rope strand of carbon fiber-containing composite material intelligent muscle of the present invention and production method will contain fiber grating
Optical fiber, carbon fiber composite reinforcement and the main rope of suspension bridge steel wire strand of sensor organically combine, and preferably solve optical fiber
Grating sensor is applied to the problem of protection problem and installation technics of main rope of suspension bridge steel wire strand, can be effectively protected light
Fine and fiber-optic grating sensor, prolongs the service life.
2. the strand that the present invention makes is used for main rope of suspension bridge, main rope of suspension bridge is made to have self-sensing properties, sensed
Characteristic has the advantages that all of fiber grating, and main push-towing rope can be monitored in real time in construction and the deformation of difference key positions during one's term of military service
With stress state, main rope of suspension bridge safety in utilization is improved.
3, the present invention helps to realize the real-time monitoring and intelligent management of entire main rope of suspension bridge, and production method letter
It is single, reasonable, it suits large area to popularize.
Detailed description of the invention
Fig. 1 is that the present invention chooses main rope of suspension bridge key position structural schematic diagram.
Fig. 2 is the carbon fibre composite intellectual rib structural schematic diagram that the present invention uses.
Fig. 3 is the setting structure schematic diagram of carbon fibre composite intellectual rib and steel wire in strand of the present invention.
Fig. 4 is the structural schematic diagram of the intelligent main push-towing rope of suspension bridge.
Wherein:
Carbon fibre composite intellectual rib 1
Optical fiber 2
Fiber-optic grating sensor 3
Plastics loose tube 4
Stainless steel sleeve pipe 5
Steel wire 6
Strand 7
Anchorage 8
Connecting cylinder 9
Be wrapped band 10
Wire sub-panel 11
Epoxy chill casting filler 12
Epoxy resin sealing material 13
Conducting wire 14
Optical time domain reflectometer 15
Main cable saddle 16
Dissipate cable saddle 17
Middle span centre point 18
Anchor head point 19
20 at cord clip
Specific embodiment
Referring to Fig. 1-2, main rope of suspension bridge strand length is first calculated according to target suspension bridge engineering project, and finds main push-towing rope
Main cable saddle on strand, dissipate cord clip, at cord clip, the position of the key positions such as middle span centre point and anchor head point, production passes containing fiber grating
The optical fiber 2 of sensor 3, and fiber-optic grating sensor 3, the optical fiber light are arranged on optical fiber 2 according to the position of above-mentioned key position
Gate sensor 3 has high microstrain amount and high-temperature stability, microstrain amount up to the 8000 μ ε of μ ε~16000, heatproof up to 180 DEG C with
On；The plastics loose tube 4 that 2 both ends of optical fiber are put on to 1 meter to 2 meters will contain fiber-optic grating sensor 3 by pultrusion molding process
Optical fiber 2, carbon fiber and epoxy resin are fabricated to carbon fibre composite intellectual rib 1, and optical fiber 2 is located at carbon fibre composite intelligence
Inside muscle 1, molding epoxy resin uses high-temperature-resistant epoxy resin, it is desirable that the glass transition temperature of epoxy resin is 220 DEG C, by carbon fiber
The both ends for tieing up composite material intelligent muscle 1 are peeled off from the position containing plastics loose tube 4, expose optical fiber 2, stainless steel sleeve pipe 5 can be used
Protect exposed optical fiber 2.
Referring to Fig. 3-4, one or more carbon fibre composite intellectual rib 1 and several steel wires 6 are formed into strand 7, rope
7 cross-sectional shapes of stock are hexagon, in strand 7 the sum of carbon fibre composite intellectual rib 1 and 6 radical of steel wire be 61,91,
127 or 169, the quantity and position that carbon fibre composite intellectual rib 1 is arranged in strand 7 can be according to actual monitoring need
Depending on asking；Then with high intensity sizing be wrapped band 10 equally spacedly to strand 7 after molding carry out shaping wrapping to guarantee leading
Not filoselle during drawing；7 both ends of strand are furnished with anchorage 8 and connecting cylinder 9, and carbon fibre composite intellectual rib 1 and steel wire 6 are in anchorage
It diverges and in 8, positioned with wire sub-panel 11；Epoxy chill casting filler 12 is perfused in anchorage 8, for anchoring strand 7, connecting cylinder 9
Middle perfusion normal-temperature curing epoxy resin seal material 13；Optical fiber 2 containing fiber-optic grating sensor 3 is drawn from 8 tail portion of both ends anchorage, can
It is connected to by conducting wire 14 on the optical time domain reflectometer 15 of energy detection fiber grating variation.
In suspension bridge main cable construction and during one's term of military service, carbon fibre composite intelligence can be monitored by optical time domain reflectometer 15
Muscle 1 becomes in the deformation and stress state of main push-towing rope difference key position according to adjacent wires 6 and carbon fibre composite intellectual rib 1
The consistent principle of shape can obtain steel wire 6 in the deformation and stress state of main push-towing rope difference key position.
Claims (5)
1. a kind of main push-towing rope strand of carbon fiber-containing composite material intelligent muscle, it is characterised in that: including one or more carbon fiber
Composite material intelligent muscle (1) and several steel wires (6), the carbon fibre composite intellectual rib (1) includes optical fiber (2), optical fiber
(2) several fiber-optic grating sensors (3) are equipped with, the fiber-optic grating sensor (3) be installed on main cable saddle on main cable strand,
Dissipate cord clip, at cord clip, middle span centre point and anchor head point position, strand (7) surface wrapped up by the band (10) that is wrapped.
2. a kind of main push-towing rope strand of carbon fiber-containing composite material intelligent muscle according to claim 1, it is characterised in that: institute
Stating strand (7) cross section is hexagon, and the sum of carbon fibre composite intellectual rib (1) and steel wire (6) radical are 61 in strand (7)
Root, 91,127 or 169.
3. a kind of installation method of the main push-towing rope strand of carbon fiber-containing composite material intelligent muscle as described in claim 1, special
Sign is: calculating main rope of suspension bridge strand length first finds key position and makes optical fiber (2) in the position of strand, and root
Fiber-optic grating sensor (3) is arranged on optical fiber (2) according to the position of key position；Then optical fiber (2) both ends are put on into plastics pine
It manages (4), is fabricated to optical fiber (2), carbon fiber and epoxy resin containing fiber-optic grating sensor (3) by pultrusion molding process
Carbon fibre composite intellectual rib (1)；Then by the both ends of carbon fibre composite intellectual rib (1) from contain plastics loose tube (4)
Position peel off, expose optical fiber (2), stainless steel sleeve pipe (5) can be used and protect exposed optical fiber (2)；By one or more carbon fiber
Composite material intelligent muscle (1) forms strand (7) with several steel wires (6), is then wrapped with high intensity sizing equidistant with (10)
Ground carries out shaping wrapping to strand after molding (7)；Strand (7) both ends are furnished with anchorage (8), carbon fibre composite intellectual rib
(1) and steel wire (6) diverges in anchorage (8) and, and is positioned with wire sub-panel (11)；Epoxy chill casting filler is perfused in anchorage (8)
(12)；Optical fiber (2) is drawn from anchorage (8) tail portion at strand (7) both ends, and being connected to by conducting wire (14) can the change of detection fiber grating
On the optical time domain reflectometer (15) of change；In suspension bridge main cable construction and during one's term of military service, carbon is monitored by optical time domain reflectometer (15)
Fibrous composite intellectual rib (1) main push-towing rope difference key position deformation and stress state, according to adjacent wires (6) and carbon fiber
It ties up composite material intelligent muscle (1) and deforms consistent principle, obtain the deformation and stress shape of steel wire (6) in main push-towing rope difference key position
State.
4. a kind of installation method of the main push-towing rope strand of carbon fiber-containing composite material intelligent muscle according to claim 3,
Be characterized in that: the fiber-optic grating sensor (3) have high microstrain amount and high-temperature stability, microstrain amount up to 8000 μ ε~
16000 μ ε, heatproof is up to 180 DEG C or more.
5. a kind of installation method of the main push-towing rope strand of carbon fiber-containing composite material intelligent muscle according to claim 3,
Be characterized in that: the epoxy resin for making carbon fibre composite intellectual rib (1) is using high-temperature-resistant epoxy resin, it is desirable that
The glass transition temperature of epoxy resin is 220 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810989063.2A CN109183617A (en) | 2018-08-28 | 2018-08-28 | The main push-towing rope strand and installation method of carbon fiber-containing composite material intelligent muscle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810989063.2A CN109183617A (en) | 2018-08-28 | 2018-08-28 | The main push-towing rope strand and installation method of carbon fiber-containing composite material intelligent muscle |
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| Publication Number | Publication Date |
|---|---|
| CN109183617A true CN109183617A (en) | 2019-01-11 |
Family
ID=64916459
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810989063.2A Pending CN109183617A (en) | 2018-08-28 | 2018-08-28 | The main push-towing rope strand and installation method of carbon fiber-containing composite material intelligent muscle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345890A (en) * | 2019-06-24 | 2019-10-18 | 中铁大桥勘测设计院集团有限公司 | A kind of bridge completion state dissipate saddle's position and anchor span it is linear combine the method for determination |
| CN111323187A (en) * | 2020-03-19 | 2020-06-23 | 中国矿业大学 | Device and method for monitoring dynamic contact state of main cable and main cable saddle of suspension bridge |
| CN113340269A (en) * | 2021-06-08 | 2021-09-03 | 中交第二航务工程局有限公司 | Method for testing reference cable strand linearity in strong wind environment |
| TWI810083B (en) * | 2022-10-05 | 2023-07-21 | 張譽鐘 | Vertical and horizontal two-way main cable suspension bridge and construction method of vertical and horizontal two-way main cable suspension bridge |
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| JP2007297777A (en) * | 2006-04-27 | 2007-11-15 | Nippon Steel Engineering Co Ltd | Cable for suspension structure and measurement system |
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| JP2007297777A (en) * | 2006-04-27 | 2007-11-15 | Nippon Steel Engineering Co Ltd | Cable for suspension structure and measurement system |
| CN200992682Y (en) * | 2006-12-29 | 2007-12-19 | 柳州欧维姆机械股份有限公司 | Cold-cast pier anchor cable implanting optical fiber grating reinforced smart bars |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345890A (en) * | 2019-06-24 | 2019-10-18 | 中铁大桥勘测设计院集团有限公司 | A kind of bridge completion state dissipate saddle's position and anchor span it is linear combine the method for determination |
| CN111323187A (en) * | 2020-03-19 | 2020-06-23 | 中国矿业大学 | Device and method for monitoring dynamic contact state of main cable and main cable saddle of suspension bridge |
| CN113340269A (en) * | 2021-06-08 | 2021-09-03 | 中交第二航务工程局有限公司 | Method for testing reference cable strand linearity in strong wind environment |
| TWI810083B (en) * | 2022-10-05 | 2023-07-21 | 張譽鐘 | Vertical and horizontal two-way main cable suspension bridge and construction method of vertical and horizontal two-way main cable suspension bridge |
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