CN108405485A - A kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system and method - Google Patents
A kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system and method Download PDFInfo
- Publication number
- CN108405485A CN108405485A CN201810141060.3A CN201810141060A CN108405485A CN 108405485 A CN108405485 A CN 108405485A CN 201810141060 A CN201810141060 A CN 201810141060A CN 108405485 A CN108405485 A CN 108405485A
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- Prior art keywords
- drag
- line
- ice
- cable
- guide pipe
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
-
- 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
Abstract
The invention discloses a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system and methods, are related to bridge operation safety protection field, which includes heating plate and sensor group, and the heating plate is wrapped on the cable guide pipe of drag-line bottom；The sensor group includes temperature sensor, humidity sensor and the freezing sensor being set on the surface layer of drag-line top；Wherein, the bottom of drag-line bottom cable guide pipe offers venthole, and the top of drag-line top cable guide pipe offers venthole, and the venthole at the top of the venthole and drag-line on the cable guide pipe of the drag-line bottom on cable guide pipe is connected to the inside of the drag-line.The present invention can effectively realize the ice-removing and ice-preventing to cable-stayed bridge cable.
Description
Technical field
The present invention relates to bridge operation safety protection fields, and in particular to a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system
System and a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing method.
Background technology
Cable-stayed bridge has many advantages, such as that span ability is big, handsome in appearance, is the main of Longspan Bridge in China's traffic system
One of bridge type, it is domestic at present to have built more than 200 seat of cable-stayed bridge, account for about the one third of whole world cable-stayed bridge sum, wherein oblique pull
Rope is the main load-bearing of cable-stayed bridge and Force transmission parts, is located on bridge floor.
During cable-stayed bridge is runed, Central China and northern territory (jelly) sleet, icing caused by climate reasons
Phenomena such as, major hidden danger easily is caused to the structure of bridge and current safety.For suspension cable, sleety weather has one later
Part sleet stays in above drag-line, and temperature can then freeze when being less than 0 DEG C；It is worth noting that, in Central China area, (winter is most
Low temperature is near 0 DEG C), also there is not at 0 DEG C or more or icing phenomenon in bridge deck temperature, and close to the drag-line high-altitude of bridge tower
0 DEG C is in hereinafter, the sleet stayed in above drag-line congeals into ice, drag-line surface freezes in addition to can be generated to stayed structure
Except destruction, while the ice cube condensed on drag-line can be by extraneous factors such as the temperature rises, wind or drag-line normal vibrations
Influence causes ice cube to fall from drag-line, can be to normally travel on bridge floor since speed is larger when the higher ice cube in position falls
Vehicle cause major safety risks, when serious even can cause a chain of traffic accident, cause great loss of personal property, by
The public opinion that this is generated is totally unfavorable to social stability.In recent years, have occurred that a lot of is influenced due to suspension cable fall ice
The event of bridge traffic safety, for example, on January 30th, 2015, fall ice occurs for the main bridge suspension cable of the Jing Yue Yangtze Bridge, has smashed more
Motor vehicle, bridge floor are covered by ice slag, result in traffic control；In January, 2015 and in January, 2018, two or seven the Changjiang river, Wuhan are big
Under ice slush high-altitude pendant on bridge suspension cable, several vehicles of damage are pounded, traffic safety is affected；August I Bridge main bridge in Nanchang also occurred
Suspension cable fall ice smashes more than 30 motor vehicle, and has injured pedestrian by a crashing object, has jeopardized traffic safety and personal safety as well as the property safety.In addition, tiltedly
Drag-line accumulated snow icing can change suspension cable cross sectional shape, to change its aerodynamic characteristics, change bridge wind-induced vibration response, prestige
Coerce bridge structure safe.
Invention content
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of guy of twisted steel cable for cable stayed bridge deicing
Anti-icing system is realized to the ice-removing and ice-preventing of drag-line, ensures the normal pass of the safe operation and bridge vehicle of bridge structure.
To achieve the above objectives, the technical solution adopted by the present invention is that, including：
Heating plate, the heating plate are wrapped on the cable guide pipe of drag-line bottom；
Sensor group, the sensor group include be set to drag-line top surface layer on temperature sensor, humidity sensor and
Freezing sensor；
Wherein, the bottom of drag-line bottom cable guide pipe offers venthole, and the top of drag-line top cable guide pipe is opened
Venthole at the top of venthole equipped with venthole, and on the cable guide pipe of the drag-line bottom and drag-line on cable guide pipe with the drawing
The inside of rope is connected to.
Based on the above technical solution, the heating plate wrapped up on the cable guide pipe of the drag-line bottom is multiple and multiple
Heating plate is uniformly wrapped in the surrounding of drag-line bottom cable guide pipe.
Based on the above technical solution, the outer layer covers of the heating plate have thermal insulation layer.
Based on the above technical solution, the venthole of drag-line top cable guide pipe is equipped with breather valve door,
And temperature sensor is equipped in the breather valve door.
Based on the above technical solution, on the venthole of drag-line bottom cable guide pipe and drag-line top cable guide pipe
Equipped with air dehumidifier.
Based on the above technical solution, the drag-line top is also equipped with for monitoring drag-line top ice condition
Camera system.
The present invention also provides a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing methods, including：
Temperature, humidity of temperature sensor, humidity sensor and the freezing sensor on drag-line top surface layer to drag-line top
It is monitored with ice condition；
When monitoring that drag-line top freezes, and the humidity on drag-line top is more than setting humidity threshold or temperature is less than and sets
Determine temperature threshold, heating plate is started to work.
Based on the above technical solution,
Drag-line top is equipped with the camera system for monitoring drag-line top ice condition；
It has been eliminated when camera system monitors that drag-line top freezes, and the humidity on drag-line top is less than setting humidity or temperature
More than set temperature, then heating plate is stopped.
Based on the above technical solution,
The venthole of drag-line top cable guide pipe is equipped with breather valve door, and is equipped in the breather valve door
Temperature sensor；
When the temperature sensor monitors in breather valve door reach setting threshold to breather valve door outflow air themperature
Value, then turn down breather valve door, and reduce the heating power of heating plate.
Compared with the prior art, the advantages of the present invention are as follows：
(1) heating plate carries out being thermally formed hot-air to the air at the cable guide pipe of drag-line bottom, and according to stack effect, heat is empty
Gas is flowed up inside drag-line and is heated to drag-line automatically, and to realize the elimination to freeze to drag-line top, while heat is empty
Gas continues can to prevent in drag-line internal flow the generation of drag-line top ice condition again, achieve the purpose that it is anti-icing to drag-line,
The bridge structure operation security hidden danger that Yin Lasuo icings are brought is effectively eliminated, ensures the normal pass of bridge vehicle.
(2) the ice-removing and ice-preventing device of whole system is simple, and device quantity is few, convenient for installation and maintenance, and utilizes stack effect
It realizes automatic rising of the hot-air inside drag-line, avoids the energy expenditure because using other Air pressurizers to bring, reduce
The operation cost of ice-removing and ice-preventing.
(3) temperature sensor in breather valve door is used to be monitored the temperature of the hot-air of outflow, convenient for real
When adjust the heating power of heating plate, avoid in drag-line that hot air temperature is excessively high to be caused to damage to drag-line.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system of the present invention.
In figure：1- drag-lines, 2- temperature sensors, 3- humidity sensors, 4- freezing sensors, 5- ventholes, 6- heating plates,
7- thermal insulation layers, 8- breather valve doors, 9- air dehumidifiers, 10- camera systems, 11- cable guide pipes, 12- bridge towers.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
Shown in Figure 1, the present invention provides a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system, for cable-stayed bridge
Drag-line 1 carry out ice-removing and ice-preventing, i.e., on drag-line 1 icing carry out deicing, while can also to the icing phenomenon on drag-line 1 into
Row prevents.The guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system of the present invention includes heating plate 6 and sensor group.
Heating plate 6 is wrapped on the cable guide pipe 11 of 1 bottom of drag-line, it is generally the case that is wrapped up on 1 bottom cable guide pipe 11 of drag-line
Heating plate 6 be multiple, and multiple heating plates 6 are uniformly wrapped in the surrounding of 1 bottom cable guide pipe 11 of drag-line, right by heating plate 6
Air at 1 bottom cable guide pipe 11 of drag-line is heated, to prevent the outside loss of heat, the outer layer covers of heating plate 6 have every
Thermosphere 7.
Sensor group includes temperature sensor 2, humidity sensor 3 and the freezing sensor being set on 1 top surface layer of drag-line
4, by temperature sensor 2, humidity sensor 3 and the freezing sensor 4 on 1 top surface layer of drag-line to the temperature on 1 top of drag-line,
Humidity and ice condition are monitored.The bottom of 1 bottom cable guide pipe 11 of drag-line offers venthole 5,1 top cable guide pipe 11 of drag-line
Top offer venthole 5, and the ventilation on the 1 top cable guide pipe 11 of venthole 5 and drag-line on 1 bottom cable guide pipe 11 of drag-line
Hole 5 is connected to the inside of drag-line 1, i.e., outside air can enter from the venthole 5 of 1 bottom cable guide pipe 11 of drag-line in drag-line 1
Portion, and flowed out from the venthole 5 of 1 top cable guide pipe 11 of drag-line.
Heating plate 6 carries out being thermally formed hot-air to the air at 1 bottom cable guide pipe 11 of drag-line, according to stack effect and
The principle that hot-air rises automatically, hot-air can automatically be flowed up in 1 inside of drag-line, then from 1 top cable guide pipe 11 of drag-line
Venthole 5 in flow out, drag-line 1 is heated during 1 internal flow of drag-line, to eliminate the knot on 1 top of drag-line
Ice, while after ice condition is eliminated, since what can also be continued heat, hot-air continues in 1 internal flow of drag-line, thus
The generation that can prevent 1 top of drag-line ice condition again, achievees the purpose that anti-icing to drag-line 1.
The venthole 5 of 1 top cable guide pipe 11 of drag-line is equipped with breather valve door 8, and temperature is equipped in breather valve door 8
Spend sensor 2.The flow velocity of 8 pairs of eluting gas from the venthole 5 of 1 top cable guide pipe 11 of drag-line of breather valve door is controlled
System, to control flow velocity of the hot-air inside drag-line 1.Temperature sensor 2 in breather valve door 8 is used for the heat to outflow
The temperature of air is monitored, and convenient for the heating power of adjustment heating plate 6 in real time, avoids hot air temperature in drag-line 1 excessively high right
Drag-line 1 causes to damage.
It is equipped with air dehumidifier 9 on the venthole 5 of 1 top cable guide pipe 11 of 1 bottom cable guide pipe 11 of drag-line and drag-line, to
Removal moisture drying is carried out to the air entered in drag-line 1.1 top of drag-line is also equipped with for monitoring 1 top ice condition of drag-line
Camera system 10, to realize the real time monitoring to 1 top icing actual conditions of drag-line.The present invention is additionally provided with control system, uses
In control temperature sensor 2, humidity sensor 3, freezing sensor 4, breather valve door 8, air dehumidifier 9 and camera system
Co-ordination between 10.
The guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system of the present invention, heating plate 6 is to the sky at 1 bottom cable guide pipe 11 of drag-line
Gas carries out being thermally formed hot-air, and according to stack effect, hot-air flows up automatically in 1 inside of drag-line adds drag-line 1
Heat, to realize the elimination to freeze to 1 top of drag-line, while hot-air continues that, in 1 internal flow of drag-line, drag-line 1 can be prevented
The generation of top ice condition again, achievees the purpose that anti-icing to drag-line 1, effectively eliminates Yin Lasuo 1 and freezes the bridge knot brought
Structure operation security hidden danger ensures the normal pass of bridge vehicle；The ice-removing and ice-preventing device of whole system is simple, and device quantity is few,
It is convenient for installation and maintenance, and realize automatic rising of the hot-air inside drag-line 1 using stack effect, it avoids because using other air
The energy expenditure that supercharging device is brought reduces the operation cost of ice-removing and ice-preventing.
The present invention also provides a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing method using above system ice-removing and ice-preventing, packets
It includes：
S1：Temperature of temperature sensor 2, humidity sensor 3 and the freezing sensor 4 on 1 top surface layer of drag-line to 1 top of drag-line
Degree, humidity and ice condition are monitored；
S2：When monitoring that 1 top of drag-line freezes, and the humidity on 1 top of drag-line is more than setting humidity threshold or temperature
Less than set temperature threshold value, heating plate 6 is started to work；
S3：Heating plate 6 heats the air at 1 bottom cable guide pipe 11 of drag-line and forms hot-air, and hot-air is on 1 inside edge of drag-line
1 length direction of drag-line flows up, and is flowed out from the venthole 5 of 1 top cable guide pipe 11 of drag-line.
1 top of drag-line is equipped with the camera system 10 for monitoring 1 top ice condition of drag-line, when camera system 10 monitors
It freezes and has eliminated to 1 top of drag-line, and the humidity on 1 top of drag-line is less than setting humidity or temperature is more than set temperature, then heats
Piece 6 is stopped.
The venthole 5 of 1 top cable guide pipe 11 of drag-line is equipped with breather valve door 8, and temperature is equipped in breather valve door 8
Sensor 2 is spent, is set when the temperature sensor 2 in breather valve door 8 monitors that the outflow of breather valve door 8 air themperature reaches
Determine threshold value, then turn down breather valve door 8, and reduce the heating power of heating plate 6, keeps 1 internal temperature of drag-line to be in one permanent
Determine state, achievees the purpose that anti-icing.It is different with the setting value of humidity about the setting humidity threshold of humidity in the embodiment of the present invention,
Set temperature threshold value, set temperature about temperature is different with the value of given threshold.
The guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing method of the present invention, heating plate 6 is to the sky at 1 bottom cable guide pipe 11 of drag-line
Gas carries out being thermally formed hot-air, and according to stack effect, hot-air flows up automatically in 1 inside of drag-line adds drag-line 1
Heat, to realize the elimination to freeze to 1 top of drag-line, while hot-air continues that, in 1 internal flow of drag-line, drag-line 1 can be prevented
The generation of top ice condition again, achievees the purpose that anti-icing to drag-line 1, effectively eliminates Yin Lasuo 1 and freezes the bridge knot brought
Structure operation security hidden danger ensures the normal pass of bridge vehicle.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (9)
1. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system, for carrying out ice-removing and ice-preventing to the drag-line (1) on cable-stayed bridge,
It is characterized in that, including：
Heating plate (6), the heating plate (6) are wrapped on the cable guide pipe (11) of drag-line (1) bottom；
Sensor group, the sensor group include the temperature sensor (2) being set on drag-line (1) top surface layer, humidity sensor
(3) and freezing sensor (4)；
Wherein, the bottom of drag-line (1) the bottom cable guide pipe (11) offers venthole (5), drag-line (1) top cable guide pipe
(11) top offers venthole (5), and the venthole (5) on the drag-line (1) bottom cable guide pipe (11) and drag-line (1) top
Venthole (5) on portion's cable guide pipe (11) is connected to the inside of the drag-line (1).
2. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system as described in claim 1, it is characterised in that：The drag-line
(1) heating plate (6) wrapped up on bottom cable guide pipe (11) is multiple, and multiple heating plates (6) are uniformly wrapped in drag-line (1) bottom
The surrounding of cable guide pipe (11).
3. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system as claimed in claim 2, it is characterised in that：The heating plate
(6) outer layer covers have thermal insulation layer (7).
4. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system as described in claim 1, it is characterised in that：The drag-line
(1) venthole (5) of top cable guide pipe (11) is equipped with breather valve door (8), and is equipped in the breather valve door (8)
Temperature sensor (2).
5. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system as claimed in claim 4, it is characterised in that：The drag-line
(1) it is equipped with air dehumidifier (9) on the venthole (5) of bottom cable guide pipe (11) and drag-line (1) top cable guide pipe (11).
6. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing system as described in claim 1, it is characterised in that：The drag-line
(1) top is also equipped with the camera system (10) for monitoring drag-line (1) top ice condition.
7. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing method using system ice-removing and ice-preventing described in claim 1, feature
It is, including：
Temperature sensor (2), humidity sensor (3) and the freezing sensor (4) on drag-line (1) top surface layer are to drag-line (1) top
Temperature, humidity and ice condition be monitored；
When monitoring that drag-line (1) top freezes, and the humidity on drag-line (1) top is more than setting humidity threshold or temperature is less than
Set temperature threshold value, heating plate (6) are started to work.
8. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing method as claimed in claim 8, it is characterised in that：
Drag-line (1) top is equipped with the camera system (10) for monitoring drag-line (1) top ice condition；
It has been eliminated when camera system (10) monitors that drag-line (1) top freezes, and the humidity on drag-line (1) top is less than setting humidity
Or temperature is more than set temperature, then heating plate (6) is stopped.
9. a kind of guy of twisted steel cable for cable stayed bridge ice-removing and ice-preventing method as claimed in claim 8, it is characterised in that：
The venthole (5) of drag-line (1) the top cable guide pipe (11) is equipped with breather valve door (8), and the ventilation controls
Temperature sensor (2) is equipped in valve (8)；
It is set when the temperature sensor (2) in breather valve door (8) monitors that breather valve door (8) outflow air themperature reaches
Determine threshold value, then turns down breather valve door (8), and reduce the heating power of heating plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141060.3A CN108405485B (en) | 2018-02-11 | 2018-02-11 | Cable-stayed bridge steel strand inhaul cable deicing and anti-icing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141060.3A CN108405485B (en) | 2018-02-11 | 2018-02-11 | Cable-stayed bridge steel strand inhaul cable deicing and anti-icing system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108405485A true CN108405485A (en) | 2018-08-17 |
| CN108405485B CN108405485B (en) | 2020-11-06 |
Family
ID=63128519
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810141060.3A Active CN108405485B (en) | 2018-02-11 | 2018-02-11 | Cable-stayed bridge steel strand inhaul cable deicing and anti-icing system and method |
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| Country | Link |
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| CN (1) | CN108405485B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357787A (en) * | 2018-10-26 | 2019-02-19 | 中国十七冶集团有限公司 | A kind of main beam concrete temperature monitoring method of cable-stayed bridge |
| CN110042755A (en) * | 2019-05-23 | 2019-07-23 | 重庆万桥交通科技发展有限公司 | Bridge cable protective case, protective device and its bridge cable |
| CN110396929A (en) * | 2019-07-26 | 2019-11-01 | 中铁武汉勘察设计研究院有限公司 | A kind of anti-freeze method and system of cable-stayed bridge cable casing |
| CN110725205A (en) * | 2019-09-09 | 2020-01-24 | 合肥工业大学 | Deicing and snow-melting protection device for bridge stay cable |
| CN110747740A (en) * | 2019-10-23 | 2020-02-04 | 三峡大学 | Intelligent anti-icing and deicing system for stay cable and application method |
| CN112227202A (en) * | 2020-09-30 | 2021-01-15 | 中铁大桥局集团有限公司 | Stay cable damper with vibration deicing function |
| CN113774790A (en) * | 2021-07-19 | 2021-12-10 | 重庆万桥交通科技发展有限公司 | Anti-corrosion cable rope of cable-stayed bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109357787A (en) * | 2018-10-26 | 2019-02-19 | 中国十七冶集团有限公司 | A kind of main beam concrete temperature monitoring method of cable-stayed bridge |
| CN110042755A (en) * | 2019-05-23 | 2019-07-23 | 重庆万桥交通科技发展有限公司 | Bridge cable protective case, protective device and its bridge cable |
| CN110396929A (en) * | 2019-07-26 | 2019-11-01 | 中铁武汉勘察设计研究院有限公司 | A kind of anti-freeze method and system of cable-stayed bridge cable casing |
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| CN110747740A (en) * | 2019-10-23 | 2020-02-04 | 三峡大学 | Intelligent anti-icing and deicing system for stay cable and application method |
| CN112227202A (en) * | 2020-09-30 | 2021-01-15 | 中铁大桥局集团有限公司 | Stay cable damper with vibration deicing function |
| CN112227202B (en) * | 2020-09-30 | 2021-12-14 | 中铁大桥局集团有限公司 | Stay cable damper with vibration deicing function |
| CN113774790A (en) * | 2021-07-19 | 2021-12-10 | 重庆万桥交通科技发展有限公司 | Anti-corrosion cable rope of cable-stayed bridge |
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