CN103103919B - Cable bent tower with self detection device and cable bent tower surface crack detection method - Google Patents
Cable bent tower with self detection device and cable bent tower surface crack detection method Download PDFInfo
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- CN103103919B CN103103919B CN201310020164.6A CN201310020164A CN103103919B CN 103103919 B CN103103919 B CN 103103919B CN 201310020164 A CN201310020164 A CN 201310020164A CN 103103919 B CN103103919 B CN 103103919B
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Abstract
The invention discloses a cable bent tower with a self detection device. A supporting frame driven by a transmission cable is arranged on the upper portion of the cable bent tower. The supporting frame moves up and down on the surface of the cable bent tower under the traction function of the transmission cable. The detection device is arranged on the supporting frame in a carried mode and moves along with the supporting frame so as to finish the detection on the surface of the cable bent tower. According to a cable bent tower surface crack detection method based on the cable bent tower with the self detection device, the detection device carried on the supporting frame is used for scanning the surface of the cable bent tower, obtained images of the surface of the cable bent tower are spliced and restored into a complete cable bent tower surface image, and treatment means are formulated according to the distribution of cracks on the image. The cable bent tower with the self detection device and the cable bent tower surface crack detection method have the advantages that the structure is simple, cost is low, transformation of a bridge on service is easy, high-frequency real-time monitoring of the cable bent tower can be realized, problems can be found conveniently and timely in an initial period of damage, and safety of a bridge structure is guaranteed.
Description
Technical field
The present invention relates to a kind of cable-stayed bridge Sarasota checkout gear, relate in particular to a kind of Sarasota and Sarasota external crack detection method with self-test device.
Background technology
Cable-stayed bridge is form more common in bridge construction, its Sarasota is the key link in whole bridge, the health status of Sarasota concerns the structural safety of whole bridge, therefore must monitor the health status of Sarasota, once damaging appears in Sarasota, need to immediately punish, to ensure the safety of bridge operation.
Sarasota long term exposure outside, is exposed to the weather, easily Yin Suota internal-external temperature difference, structure and arrangement of reinforcement is improper and external load effect occurs that crack or topping peel off, moving tens meters of general Sarasota height, rice even up to a hundred, in prior art, in the time that it is monitored, the data analysis that can only collect according to manual observation or pre-buried sensor, the degree of accuracy of this detection method is lower, real-time is poor, be difficult to pinpoint the problems at the initial stage that occurs disease, if obtain more detailed, real-time Sarasota surface appearance information, can only be by building climbing facility, climbing to eminence by people observes Sarasota surface, building of climbing facility is not only with high costs, consuming time, consumption power, and it is larger to take up room, need to seal bridge traffic, therefore should not often carry out, therefore be difficult to realize long-term to Sarasota surface, effectively monitoring.
Summary of the invention
For the problem in background technology, the present invention proposes a kind of Sarasota with self-test device, comprise Sarasota, described Sarasota top is provided with leading block group, described Sarasota bottom is provided with lower leading block group, and the Sarasota surface of lower leading block group below is fixed with power set; Between upper leading block group, lower leading block group and power set three, be furnished with transfer cable, the end to end formation closed loop of transfer cable, lead by upper leading block group in closed loop top, closed loop middle part is by lower leading block group guiding, closed loop bottom is socketed on the driving wheel of power set, transfer cable under the gearing of power set between upper leading block group, lower leading block group and power set three shuttling movement; In closed loop, be fixedly connected with a bearing support near the cable body in the middle part of the transfer cable of Sarasota surface one side, the vertical position of bearing support is between upper leading block group and lower leading block group, on the lateral surface of bearing support, be provided with leading block group, in closed loop, lead by leading block away from the transfer cable cable body of Sarasota surface one side; On described bearing support medial surface, be provided with multiple travelling wheels, travelling wheel and Sarasota Surface Contact; On bearing support, be provided with detection attending device.
Aforementioned structure can synchronously arrange in bridge construction, also can carry out making the Sarasota of in-service bridge possess self-checking function after disposable transformation to the Sarasota of in-service bridge; Adopt after aforementioned structure, the detection attending device being mounted on bearing support can move very easily on Sarasota, dissimilar according to carried detection attending device, to meet different job requirements, as carry video acquisition device, and can be used for obtaining the image information on Sarasota surface, with ancillary works personnel, the health status on Sarasota surface is analyzed, as carry spray equipment, can be used for Sarasota surface to carry out spraying operation; Aforementioned structure is very simple, its transmission process is realized by pulley, to the almost no requirement (NR) of Sarasota surface, need very complicated dynamical system and walking track unlike lift class device, and to Sarasota surface almost without destroy, extremely be suitable for the transformation to active service cable-stayed bridge, for Sarasota surface being carried out to the monitoring of high-frequency, real-time.
On the basis of aforementioned schemes, the present invention has also proposed following preferred embodiment for upper leading block group: described upper leading block group is made up of support, directive wheel and contact roller; Directive wheel and contact roller are arranged on support, and support is fixedly connected with Sarasota surface; Transfer cable is socketed on the wheel rim of directive wheel, and contact roller is near directive wheel setting, and contact roller makes transfer cable be close to the wheel rim of directive wheel.Directive wheel is used for transfer cable to lead, the compactness of contact roller in order to ensure to contact between transfer cable and directive wheel.
On the basis of aforementioned schemes, the present invention has also proposed following preferred embodiment for lower leading block group: described lower leading block group is made up of locating rack, leading block and position-limited wheel; Leading block and position-limited wheel are arranged on locating rack, and locating rack is fixedly connected with Sarasota surface; In closed loop, contact near the inner side of transfer cable and the wheel rim of leading block of Sarasota surface one side, in closed loop, contact away from the outside of transfer cable and the wheel rim of position-limited wheel of Sarasota surface one side.Leading block and position-limited wheel can ensure that the transfer cable of the inside and outside both sides of closed loop is all close to Sarasota surface.
On the basis of aforementioned schemes, the present invention has also proposed following preferred embodiment for leading block group: described leading block group is made up of interior directive wheel and outer directive wheel, interior directive wheel and outer directive wheel are contiguous to be arranged, and transfer cable is placed in the gap between interior directive wheel and outer directive wheel.Interior directive wheel interferes between transfer cable and bearing support in order to avoiding, and outer directive wheel makes close contact between transfer cable and interior directive wheel.
For the left and right sides that makes bearing support keeps balance in the process of walking, the present invention has also done following improvement: the quantity of described upper leading block group is two, and the position of two upper leading block groups is along symmetrical setting of vertical line of symmetry of bearing support; The quantity of lower leading block group and position are corresponding one by one with upper leading block group; The quantity of the driving wheel on power set and position are corresponding one by one with upper leading block group; The quantity of the leading block group on bearing support and position are corresponding one by one with upper leading block group.
Occur rocking for fear of bearing support, and improve the locomotor activity of bearing support, the present invention has also done following improvement: described bearing support is shaped as U-shaped, and the bearing support of U-shaped is encircled Sarasota outer wall, and multiple travelling wheels evenly arrange along U-shaped bearing of trend.
Described detection attending device can adopt fixed mounting means, in order further to improve the performance that detects attending device, the present invention has also done following improvement: on the medial surface of described bearing support, be provided with chain drive, described chain drive transmission detect attending device in horizontal plane along Sarasota circumferential movement.
Described detection attending device is one or both in video acquisition device, painting spraying device.
In order to improve the effect that contacts on travelling wheel and Sarasota surface, the present invention has also done following improvement: described travelling wheel is made up of link and two wheels; Link middle part is rotationally connected with bearing support, and link two ends form lever construction, and two wheels are arranged at respectively the two ends of link.In the time that bearing support moves on Sarasota irregular position, one of them wheel can be by the protuberance jack-up on Sarasota surface, but, under the effect of lever construction, another wheel can be fitted closelyr with Sarasota surface, avoids Yin Suota surface irregularity to cause travelling wheel to separate with Sarasota surface.
Based on aforesaid structure, the invention allows for a kind of Sarasota external crack detection method, its hardware device comprises the aforesaid Sarasota with self-test device, and be mounted in the video acquisition device on self-test device, chain drive transmission video acquisition device in horizontal plane along Sarasota circumferential movement; The method comprises: 1) drive self-test device along Sarasota axially-movable, and when self-test device moves to after certain altitude, self-test device is parked,
2) transmission video acquisition device, at horizontal in-plane moving, carries out IMAQ to the peripheral surface of this At The Height Sarasota; When IMAQ, chronologically by the image serial number collecting;
3) after the peripheral surface IMAQ of this At The Height Sarasota completes, return to step 1), continue the peripheral surface of next height and position place Sarasota to carry out IMAQ;
4) after the Sarasota surface image collection in self-test device range of movement all completes, export the image collecting to computer, by manually the image collecting being identified, whether have crack to screen Sarasota surface; Track to the crack screening out and size are carried out mark with image conversion means;
5) when having completed after the examination of all images, by step 2) in numbering by Image Mosaics, be reduced to complete Sarasota exterior view, work out punishment means according to Sarasota exterior view.
Useful technique effect of the present invention is: simple in structure, with low cost, be easy to in-service bridge to transform, and can carry out to Sarasota the Real-Time Monitoring of high frequency time, be beneficial at the disease initial stage and pinpoint the problems in time, ensure the safety of bridge construction.
Brief description of the drawings
Fig. 1, structural representation of the present invention;
Fig. 2, upper leading block group structural representation;
Fig. 3, lower leading block group structural representation;
Fig. 4, leading block group structural representation;
Fig. 5, branching bolster structure schematic diagram;
Fig. 6, travelling wheel structural representation.
Detailed description of the invention
With a Sarasota for self-test device, comprise Sarasota 1, described Sarasota 1 top is provided with leading block group 2, and described Sarasota 1 bottom is provided with lower leading block group 3, and Sarasota 1 surface of lower leading block group 3 belows is fixed with power set 4; Between upper leading block group 2, lower leading block group 3 and power set 4 threes, be furnished with transfer cable 6, the end to end formation closed loop of transfer cable 6, lead by upper leading block group 2 in closed loop top, lead by lower leading block group 3 in closed loop middle part, closed loop bottom is socketed on the driving wheel of power set 4, transfer cable 6 under the gearing of power set 4 between upper leading block group 2, lower leading block group 3 and power set 4 threes shuttling movement; In closed loop, the cable body at transfer cable 6 middle parts of the close surperficial side of Sarasota 1 is fixedly connected with a bearing support 5, the vertical position of bearing support 5 is between upper leading block group 2 and lower leading block group 3, on the lateral surface of bearing support 5, be provided with leading block group, the transfer cable 6 cable bodies away from the surperficial side of Sarasota 1 in closed loop lead by leading block; On described bearing support 5 medial surfaces, be provided with multiple travelling wheels, travelling wheel and Sarasota 1 Surface Contact; On bearing support 5, be provided with detection attending device.
Further, described upper leading block group 2 is made up of support 2-1, directive wheel 2-2 and contact roller 2-3; It is upper that directive wheel 2-2 and contact roller 2-3 are arranged at support 2-1, and support 2-1 is fixedly connected with Sarasota 1 surface; Transfer cable 6 is socketed on the wheel rim of directive wheel 2-2, and contact roller 2-3 arranges near directive wheel 2-2, and contact roller 2-3 makes transfer cable 6 be close to the wheel rim of directive wheel 2-2.
Further, described lower leading block group 3 is made up of locating rack 3-1, leading block 3-2 and position-limited wheel 3-3; It is upper that leading block 3-2 and position-limited wheel 3-3 are arranged at locating rack 3-1, and locating rack 3-1 is fixedly connected with Sarasota 1 surface; Inner side near the transfer cable 6 of the surperficial side of Sarasota 1 in closed loop contacts with the wheel rim of leading block 3-2, and the outside away from the transfer cable 6 of the surperficial side of Sarasota 1 in closed loop contacts with the wheel rim of position-limited wheel 3-3.
Further, described leading block group is made up of interior directive wheel 5-1 and outer directive wheel 5-2, and interior directive wheel 5-1 and outer directive wheel 5-2 are contiguous to be arranged, and transfer cable 6 is placed in the gap between interior directive wheel 5-1 and outer directive wheel 5-2.
Further, the quantity of described upper leading block group 2 is two, and the position of two upper leading block groups 2 is along symmetrical setting of vertical line of symmetry of bearing support 5; The quantity of lower leading block group 3 and position are corresponding one by one with upper leading block group 2; The quantity of the driving wheel on power set 4 and position are corresponding one by one with upper leading block group 2; The quantity of the leading block group on bearing support 5 and position are corresponding one by one with upper leading block group 2.
Further, described bearing support 5 is shaped as U-shaped, and the bearing support 5 of U-shaped is encircled Sarasota 1 outer wall, and multiple travelling wheels evenly arrange along U-shaped bearing of trend.
Further, on the medial surface of described bearing support 5, be provided with chain drive, described chain drive transmission detect attending device in horizontal plane along Sarasota 1 circumferential movement.
Further, described detection attending device is one or both in video acquisition device, painting spraying device.
Further, described travelling wheel is made up of link 7 and two wheels 8; Link 7 middle parts and bearing support 5 are rotationally connected, and link 7 two ends form lever construction, and two wheels 8 are arranged at respectively the two ends of link 7.
A kind of Sarasota external crack detection method, its hardware device comprises the Sarasota with self-test device claimed in claim 1, and be mounted in the video acquisition device on self-test device, chain drive transmission video acquisition device in horizontal plane along Sarasota 1 circumferential movement; The method comprises: 1) drive self-test device along Sarasota 1 axially-movable, and when self-test device moves to after certain altitude, self-test device is parked,
2) transmission video acquisition device, at horizontal in-plane moving, carries out IMAQ to the peripheral surface of this At The Height Sarasota 1; When IMAQ, chronologically by the image serial number collecting;
3) after the peripheral surface IMAQ of this At The Height Sarasota 1 completes, return to step 1), continue the peripheral surface of next height and position place Sarasota 1 to carry out IMAQ;
4) after the Sarasota 1 surface image collection in self-test device range of movement all completes, export the image collecting to computer, by manually the image collecting being identified, whether have crack to screen Sarasota 1 surface; Track to the crack screening out and size are carried out mark with image conversion means;
5) when having completed after the examination of all images, by step 2) in numbering by Image Mosaics, be reduced to complete Sarasota exterior view, work out punishment means according to Sarasota exterior view.
Claims (10)
1. the Sarasota with self-test device, comprise Sarasota (1), it is characterized in that: described Sarasota (1) top is provided with leading block group (2), described Sarasota (1) bottom is provided with lower leading block group (3), and Sarasota (1) surface of lower leading block group (3) below is fixed with power set (4); Between upper leading block group (2), lower leading block group (3) and power set (4) three, be furnished with transfer cable (6), the end to end formation closed loop of transfer cable (6), lead by upper leading block group (2) in closed loop top, lead by lower leading block group (3) in closed loop middle part, closed loop bottom is socketed on the driving wheel of power set (4), transfer cable (6) under the gearing of power set (4) between upper leading block group (2), lower leading block group (3) and power set (4) three shuttling movement; In closed loop, be fixedly connected with a bearing support (5) near the cable body in the middle part of the transfer cable (6) of the surperficial side of Sarasota (1), the vertical position of bearing support (5) is positioned between leading block group (2) and lower leading block group (3), on the lateral surface of bearing support (5), be provided with leading block group, transfer cable (6) the cable body away from the surperficial side of Sarasota (1) in closed loop leads by leading block; On described bearing support (5) medial surface, be provided with multiple travelling wheels, travelling wheel and Sarasota (1) Surface Contact; Bearing support is provided with detection attending device on (5).
2. the Sarasota with self-test device according to claim 1, is characterized in that: described upper leading block group (2) is made up of support (2-1), directive wheel (2-2) and contact roller (2-3); It is upper that directive wheel (2-2) and contact roller (2-3) are arranged at support (2-1), and support (2-1) is fixedly connected with Sarasota (1) surface; Transfer cable (6) is socketed on the wheel rim of directive wheel (2-2), and contact roller (2-3) arranges near directive wheel (2-2), and contact roller (2-3) makes transfer cable (6) be close to the wheel rim of directive wheel (2-2).
3. the Sarasota with self-test device according to claim 1, is characterized in that: described lower leading block group (3) is made up of locating rack (3-1), leading block (3-2) and position-limited wheel (3-3); It is upper that leading block (3-2) and position-limited wheel (3-3) are arranged at locating rack (3-1), and locating rack (3-1) is fixedly connected with Sarasota (1) surface; Inner side near the transfer cable (6) of the surperficial side of Sarasota (1) in closed loop contacts with the wheel rim of leading block (3-2), and the outside away from the transfer cable (6) of the surperficial side of Sarasota (1) in closed loop contacts with the wheel rim of position-limited wheel (3-3).
4. the Sarasota with self-test device according to claim 1, it is characterized in that: described leading block group is made up of interior directive wheel (5-1) and outer directive wheel (5-2), interior directive wheel (5-1) and outer directive wheel (5-2) are contiguous to be arranged, and transfer cable (6) is placed in the gap between interior directive wheel (5-1) and outer directive wheel (5-2).
5. the Sarasota with self-test device according to claim 1, is characterized in that: the quantity of described upper leading block group (2) is two, and the position of two upper leading block groups (2) is along symmetrical setting of vertical line of symmetry of bearing support (5); The quantity of lower leading block group (3) and position are corresponding one by one with upper leading block group (2); The quantity of the driving wheel on power set (4) and position are corresponding one by one with upper leading block group (2); The quantity of the leading block group on bearing support (5) and position are corresponding one by one with upper leading block group (2).
6. the Sarasota with self-test device according to claim 1, is characterized in that: described bearing support (5) is shaped as U-shaped, and the bearing support (5) of U-shaped is encircled Sarasota (1) outer wall, and multiple travelling wheels evenly arrange along U-shaped bearing of trend.
7. the Sarasota with self-test device according to claim 1, is characterized in that: on the medial surface of described bearing support (5), be provided with chain drive, described chain drive transmission detect attending device in horizontal plane along Sarasota (1) circumferential movement.
8. the Sarasota with self-test device according to claim 1, is characterized in that: described detection attending device is one or both in video acquisition device, painting spraying device.
9. the Sarasota with self-test device according to claim 1, is characterized in that: described travelling wheel is made up of link (7) and two wheels (8); Link (7) middle part is rotationally connected with bearing support (5), and link (7) two ends form lever construction, and two wheels (8) are arranged at respectively the two ends of link (7).
10. a Sarasota external crack detection method, it is characterized in that: its hardware device comprises the Sarasota with self-test device claimed in claim 1, and be mounted in the video acquisition device on self-test device, chain drive transmission video acquisition device in horizontal plane along Sarasota (1) circumferential movement; The method comprises: 1) drive self-test device along Sarasota (1) axially-movable, and when self-test device moves to after certain altitude, self-test device is parked,
2) transmission video acquisition device, at horizontal in-plane moving, carries out IMAQ to the peripheral surface of this At The Height Sarasota (1); When IMAQ, chronologically by the image serial number collecting;
3) after the peripheral surface IMAQ of this At The Height Sarasota (1) completes, return to step 1), continue the peripheral surface of next height and position place Sarasota (1) to carry out IMAQ;
4) after the Sarasota in self-test device range of movement (1) surface image collection all completes, export the image collecting to computer, by manually the image collecting being identified, whether have crack to screen Sarasota (1) surface; Track to the crack screening out and size are carried out mark with image conversion means;
5) when having completed after the examination of all images, by step 2) in numbering by Image Mosaics, be reduced to complete Sarasota exterior view, work out punishment means according to Sarasota exterior view.
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| CN201310020164.6A CN103103919B (en) | 2013-01-21 | 2013-01-21 | Cable bent tower with self detection device and cable bent tower surface crack detection method |
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| CN201310020164.6A CN103103919B (en) | 2013-01-21 | 2013-01-21 | Cable bent tower with self detection device and cable bent tower surface crack detection method |
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| CN103103919A CN103103919A (en) | 2013-05-15 |
| CN103103919B true CN103103919B (en) | 2014-12-03 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071540B (en) * | 2014-07-04 | 2017-05-10 | 重庆交通大学 | Bridge crack detection device based on cableway |
| CN106055813A (en) * | 2016-06-08 | 2016-10-26 | 招商局重庆交通科研设计院有限公司 | Bridge disease diagnosis and maintenance decision-making system |
| CN110672822A (en) * | 2019-09-23 | 2020-01-10 | 郑州航空工业管理学院 | Nondestructive testing system for structural defects of bridge concrete |
| CN114855644A (en) * | 2022-03-25 | 2022-08-05 | 浙江恒炜建设集团有限公司 | Bridge main tower structure convenient to maintain and construction method thereof |
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