CN204924961U - A device that is used for peeping in bridge beam slab prestressed duct detection - Google Patents
A device that is used for peeping in bridge beam slab prestressed duct detection Download PDFInfo
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- CN204924961U CN204924961U CN201520496742.8U CN201520496742U CN204924961U CN 204924961 U CN204924961 U CN 204924961U CN 201520496742 U CN201520496742 U CN 201520496742U CN 204924961 U CN204924961 U CN 204924961U
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Abstract
The utility model provides a device that is used for peeping in bridge beam slab prestressed duct detection, belongs to bridge beam slab test equipment technology field. The device is organized (1), camera image transmission electric wire (2), wheeled encoder (3), wheeled encoder data transmission electric wire (4), image data record appearance (5), wheeled encoder bracket (6), camera guide hook (7), is reached camera guide line (8) by miniature camera and constitutes, the assembly does: miniature camera grouping (1) is connected with camera image transmission electric wire (2), camera image transmission electric wire (2) is connected with image data record appearance (5), wheeled encoder data transmission electric wire (4) is connected with wheeled encoder (3) and image data record appearance (5) respectively, wheeled encoder (3) lower part is connected with support (6), the front end in miniature camera group (1) is installed to camera guide hook (7) one end, and the other end is connected with camera guide line (8). The advantage: simple structure easily operates, and the cost is low, has the multinomial construction quality function of detection, and the large tracts of land of being convenient for is used widely.
Description
Technical field:
The utility model relates to a kind of device for peeping detection in bridge beam slab prestressed pore passage, belongs to bridge beam slab checkout equipment technical field.
Background technology:
Building bridge concrete, all must detect its girder plate prestress construction quality according to Department of Transportation's relevant regulations, to guarantee the axle casing energy safe operation be open to traffic.At the main test item of bridge construction beam girder plate prestress detection of construction quality be at present: 1, duct grouting quality; 2, steel strand tension quality.The method adopted has: 1, stress reflection method (grouting quality); 2, radar method (grouting quality); 3 supercritical ultrasonics technologies (grouting quality); 4, impact echo (grouting quality); 5, steel strand wires stretch out the rate direct method of measurement (stretch-draw quality); 6, stress-strain measurement method (stretch-draw quality) etc.But some problems below still existing in the practical application of building-site:
1, prestressed pore passage drilling construction quality cannot detect.According to specification after bridge beam slab has been constructed, before steel stranded wire penetrating adapter, to detect girder plate prestress duct hole quality, require that duct must be unobstructed without blocking, string hole can not be had, orifice throat length, spacing between pipes and pipeline coordinate meet design requirement, and can not there is foreign material and water in duct, and hole quality quality will directly affect follow-up steel stranded wire penetrating adapter construction quality, steel strand tension construction quality mortar depositing construction quality.But owing to not having specialized equipment to detect in practice of construction, prestressed pore passage drilling construction quality cannot detect;
2, steel stranded wire penetrating adapter quality cannot detect.According to specification when carrying out steel stranded wire penetrating adapter construction, steel strand wires must be numbered, must connect one to one when connecting at ground tackle two ends, middle part steel twisted wire can not have the situation being wound around and reversing, steel stranded wire penetrating adapter quality directly can affect steel strand wires actual elongation value during stress tension, has a strong impact on girder plate prestress construction quality.But owing to not having specialized equipment to detect in practice of construction, steel stranded wire penetrating adapter quality cannot detect;
3, after stretch-draw, steel strand wires quality cannot detect.After having constructed according to specification steel strand tension, steel strand wires can not have the situation of fracture of wire to occur.Quality but aperture, prestressed pore passage two ends is covered by ground tackle in practice of construction process, to add and without special inspecting equipment, so cannot detect after steel strand tension;
4, the concealed work starting material used in prestressed pore passage cannot detect, and must meet code requirement by internal diameter according to the corrugated tube used in code requirement prestressed pore passage, and without bowing in pipe, tube wall is without breakage, and pipe joint place must seal.The necessary non-corroding of the steel strand wires used in prestressed pore passage, without fracture of wire, not damaged.But owing to not having specialized equipment to detect in practice of construction, aperture, prestressed pore passage two ends is covered by ground tackle, the concealed work starting material used in prestressed pore passage cannot detect;
For filling up the blank of existing highway bridge girder plate prestress test item, overcoming the deficiency of existing highway bridge girder plate prestress pick-up unit, the utility model is provided.By literature search, the open report identical with the utility model is had no.
Summary of the invention:
The purpose of this utility model is the blank filling up existing highway bridge girder plate prestress test item, overcomes the deficiency of existing highway bridge girder plate prestress pick-up unit, and provides a kind of device for peeping detection in bridge beam slab prestressed pore passage.
Device for peeping detection in bridge beam slab prestressed pore passage of the present utility model, transmits electric wire (2), wheel type encoder (3), wheel type encoder data transmission electric wire (4), Imagery Data Recording instrument (5), wheel type encoder support (6), camera guiding hook (7) and camera guide line (8) by miniature video camera head group (1), camera image and forms;
Device assemble sequence is: five minisize pick-up heads form a miniature video camera head group (1), and minisize pick-up head grouping (1) transmits electric wire (2) with camera image and is connected; Camera image transmission electric wire (2) is connected with Imagery Data Recording instrument (5) through the wire casing of wheel type encoder (3); Wheel type encoder data transmission electric wire (4) one end is connected with wheel type encoder (3), and one end is connected with Imagery Data Recording instrument (5); Wheel type encoder (3) bottom is connected with wheel type encoder support (6); Camera guiding hook (7) one end is arranged on the front end of miniature video camera head group (1), and the other end is connected with camera guide line (8).
The utility model has the advantage of:
1, prestressed pore passage drilling construction quality can be detected.The view data that this device is gathered by miniature video camera head group and scrambler, real-time video detection can be carried out to girder plate prestress duct hole quality, the stopping state in duct can be detected, the string hole situation in duct can be detected, orifice throat length can be detected whether meet design requirement, can detect duct internal memory foreign material, ponding situation, hole wall execute distortion or damage etc., accurately can locate defect point.Can objectively respond the quality of prestressed pore passage hole quality, to improving follow-up steel stranded wire penetrating adapter construction quality, steel strand tension construction quality, corrugated tube mortar depositing construction quality are significant comprehensively;
2, steel stranded wire penetrating adapter quality can be detected, the view data that this device is gathered by miniature video camera head group and scrambler, can to the winding in the middle part of steel strand wires in duct with torsion situation (steel strand wires must connect one to one when ground tackle two ends are connected, but 360 degree of situations about reversing may be there are in practice of construction) detect, accurately can locate defect point.Can objectively respond the quality of steel stranded wire penetrating adapter quality, to improving, follow-up steel strand tension construction quality is significant comprehensively;
3, steel strand wires quality after stretch-draw can be detected.The view data that this device is gathered by miniature video camera head group and scrambler, can detect the fracture of wire quality after steel strand tension in duct, accurately can locate fracture of wire defect point.Steel strand wires whether corrosion can be found out intuitively, the quality of steel strand wires quality after stretch-draw can be objectively responded comprehensively, to raising serviceable life in later stage, reduce bridge prestress loss significant;
4, the concealed work starting material used in prestressed pore passage can be detected.The view data that this device is gathered by miniature video camera head group and scrambler, can detect the corrugated tube pipe inner process deformation used in prestressed pore passage, tube wall is without breakage.The steel strand wires corrosion situation used in prestressed pore passage can be detected, fracture of wire situation, degree of impairment.Can objectively respond the concealed work starting material situation used in prestressed pore passage, to effectively preventing, the use of defective material is significant comprehensively;
5, equipment operating is simple, and operating personnel do not need professional training, cheap, can be widely used in unit in charge of construction's self-inspection, on-the-spot sidegating effect sampling observation, and third party's testing inspection, is convenient to spread and uses.
Accompanying drawing illustrates:
Fig. 1 is overall work schematic diagram of the present utility model.
Fig. 2 is single unit system structural representation of the present utility model.
Fig. 3 is the forward sight cross-sectional view of miniature video camera head group of the present utility model.
Fig. 4 is the backsight cross-sectional view of miniature video camera head group of the present utility model.
Embodiment:
As shown in the figure, the sound detecting pipe device that foundation pile supercritical ultrasonics technology of the present utility model detects, is made up of miniature video camera head group 1, camera image transmission electric wire 2, wheel type encoder 3, wheel type encoder data transmission electric wire 4, Imagery Data Recording instrument 5, wheel type encoder support 6, camera guiding hook 7, camera guide line 8, a few part;
Device assemble sequence is: five minisize pick-up heads form a miniature video camera head group 1, and the effect of miniature video camera head group 1 is the hole quality image in omnidirectional shooting prestressed pore passage.Minisize pick-up head grouping 1 is transmitted electric wire 2 with camera image and is connected, and camera image transmission electric wire 2 is connected with Imagery Data Recording instrument 5 through the wire casing of wheel type encoder 3.Wheel type encoder data transmission electric wire 4 one end is connected with wheel type encoder 3, and one end is connected with Imagery Data Recording instrument 5.Wheel type encoder 3 bottom is connected with wheel type encoder support 6.Camera guiding hook 7 one end is arranged on the front end of miniature video camera head group 1, and the other end is connected with camera guide line 8.
Device principle of work is: by the movement of guide line 8 during detection, miniature video camera head group 1 and image transmitting electric wire 2 is allowed to move in prestressed pore passage, the movement of image transmitting electric wire 2 can drive the measuring wheel of wheel type encoder 3 to rotate, the moving distance data of acquisition camera group 1.The image collected, by transmission electric wire 2, is transferred in Imagery Data Recording instrument 5 and stores, and the range data collected, by data transmission electric wire 4, is transferred in Imagery Data Recording instrument 5 and stores.Wherein, wheel type encoder principle of work is: the friction force produced when being moved in wire casing by line rotates measuring wheel, by the length of the rotation call wire of measuring wheel.
The product that the utility model adopts market to buy and material are reequiped according to a conventional method or prepare.
The course of work of the present utility model is as follows:
1, preliminary work, checks that whether instrument is working properly, checks the length by inspection beam slab, selects applicable guide line and miniature video camera head group, debugging miniature video camera head group and wheel type encoder.
2, Site Detection, first guide line 8 is penetrated in girder plate prestress duct, guide line 8 one end is connected with miniature video camera head group 1 by camera guiding hook 7, the line length distance arranged when miniature video camera head group 1 enters duct is 0 point, pull guide line 8, miniature video camera head group 1 and image transmitting line 2 is made to enter prestressed pore passage, start the line length data (i.e. range data) gathering image and image transmitting line 2 simultaneously, when miniature video camera head group 1 through prestressed pore passage from other end opening of the channel out time, detection completes.
3, data storing, is stored into the image that collects when detecting and range data corresponding to image in datalogger 5.
4, data analysis, the project of the girder plate prestress construction quality that this device can detect has: prestressed pore passage drilling construction quality; Steel stranded wire penetrating adapter quality; Steel strand wires quality after stretch-draw; The concealed work starting material used in prestressed pore passage.
(1) prestressed pore passage drilling construction quality testing, the view data that this device is gathered by miniature video camera head group 1 and scrambler 3, find the defect image of the blocking point in duct, string hole point, foreign material heap plot point, ponding point, miniature video camera head group 1 distance and position of record corresponding to image, the particular location of defect point in duct is found out by girder plate prestress duct design drawing, in conjunction with associated construction art specification and inspection specifications, judge whether girder plate prestress duct drilling construction quality meets design requirement;
(2) steel stranded wire penetrating adapter quality testing, the view data that this device is gathered by miniature video camera head group 1 and scrambler 3, find the steel strands wound point in duct and reverse dot image, miniature video camera head group 1 distance and position of record corresponding to image, found out by girder plate prestress duct design drawing and be wound around point and reverse the particular location of point in duct, in conjunction with associated construction art specification and inspection specifications, judge whether girder plate prestress steel stranded wire penetrating adapter quality meets design requirement;
(3) steel strand wires quality testing after stretch-draw, the view data that this device is gathered by miniature video camera head group 1 and scrambler 3, find the Steel strand broken wire dot image in duct, the miniature video camera head group distance and position of record corresponding to image, the particular location of fracture of wire point in duct is found out by girder plate prestress duct design drawing, in conjunction with associated construction art specification and inspection specifications, after judging the stretch-draw of girder plate prestress duct, whether steel strand wires quality meets design requirement;
(4) the concealed work starting material used in prestressed pore passage detect, the view data that this device is gathered by miniature video camera head group 1 and scrambler 3, find the bowing point of duct inner corrugated pipe, the defect image of breaking point, find the corrosion point of steel strand wires in duct, fracture of wire point, the defect image of impaired loci, miniature video camera head group 1 distance and position of record corresponding to image, the particular location of defect point in duct is found out by girder plate prestress duct design drawing, in conjunction with associated construction art specification and inspection specifications, judge whether the engineering starting material used in girder plate prestress duct meet design requirement,
Practical application shows, the utility model reaches purpose of design and testing requirement completely.
Claims (1)
1., for peeping a device for detection in bridge beam slab prestressed pore passage, it is characterized in that this pick-up unit transmits electric wire (2), wheel type encoder (3), wheel type encoder data transmission electric wire (4), Imagery Data Recording instrument (5), wheel type encoder support (6), camera guiding hook (7) and camera guide line (8) by miniature video camera head group (1), camera image and forms;
Device assemble sequence is: five minisize pick-up heads form a miniature video camera head group (1), and minisize pick-up head grouping (1) transmits electric wire (2) with camera image and is connected; Camera image transmission electric wire (2) is connected with Imagery Data Recording instrument (5) through the wire casing of wheel type encoder (3); Wheel type encoder data transmission electric wire (4) one end is connected with wheel type encoder (3), and one end is connected with Imagery Data Recording instrument (5); Wheel type encoder (3) bottom is connected with wheel type encoder support (6); Camera guiding hook (7) one end is arranged on the front end of miniature video camera head group (1), and the other end is connected with camera guide line (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496742.8U CN204924961U (en) | 2015-07-10 | 2015-07-10 | A device that is used for peeping in bridge beam slab prestressed duct detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496742.8U CN204924961U (en) | 2015-07-10 | 2015-07-10 | A device that is used for peeping in bridge beam slab prestressed duct detection |
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| CN204924961U true CN204924961U (en) | 2015-12-30 |
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| CN201520496742.8U Expired - Fee Related CN204924961U (en) | 2015-07-10 | 2015-07-10 | A device that is used for peeping in bridge beam slab prestressed duct detection |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192484A (en) * | 2017-04-28 | 2017-09-22 | 中铁六局集团有限公司 | A kind of device and method for being used to detect the girder pre-stressed pipeline of posttension |
| CN108120720A (en) * | 2017-12-15 | 2018-06-05 | 宋金博 | A kind of Bridge Crack identification device based on camera and laser line generator |
| CN108571941A (en) * | 2018-05-31 | 2018-09-25 | 云南省公路科学技术研究院 | A kind of linear detection device of bridge prestress bellows and detection method |
| CN113605249A (en) * | 2021-09-10 | 2021-11-05 | 中国铁建大桥工程局集团有限公司 | Monitoring method for steel strand pulling construction in prestressed structure corrugated pipe |
-
2015
- 2015-07-10 CN CN201520496742.8U patent/CN204924961U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192484A (en) * | 2017-04-28 | 2017-09-22 | 中铁六局集团有限公司 | A kind of device and method for being used to detect the girder pre-stressed pipeline of posttension |
| CN107192484B (en) * | 2017-04-28 | 2019-12-13 | 中铁六局集团有限公司 | Device and method for detecting post-tensioned beam prestressed pipeline |
| CN108120720A (en) * | 2017-12-15 | 2018-06-05 | 宋金博 | A kind of Bridge Crack identification device based on camera and laser line generator |
| CN108571941A (en) * | 2018-05-31 | 2018-09-25 | 云南省公路科学技术研究院 | A kind of linear detection device of bridge prestress bellows and detection method |
| CN108571941B (en) * | 2018-05-31 | 2024-02-06 | 云南省公路科学技术研究院 | Linear detection device and detection method for bridge prestressed corrugated pipe |
| CN113605249A (en) * | 2021-09-10 | 2021-11-05 | 中国铁建大桥工程局集团有限公司 | Monitoring method for steel strand pulling construction in prestressed structure corrugated pipe |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20190710 |
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| CF01 | Termination of patent right due to non-payment of annual fee |