CN204881498U - Vertical measuring device that scratches of bridge - Google Patents
Vertical measuring device that scratches of bridge Download PDFInfo
- Publication number
- CN204881498U CN204881498U CN201520623903.5U CN201520623903U CN204881498U CN 204881498 U CN204881498 U CN 204881498U CN 201520623903 U CN201520623903 U CN 201520623903U CN 204881498 U CN204881498 U CN 204881498U
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- Prior art keywords
- steel wire
- girder
- weight
- displacement meter
- wire
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- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a vertical measuring device that scratches of bridge, including horizontal steel wire, draw steel wire, weight, mount pad, displacement meter, girder and be located the pier at girder both ends to one side, the one end of horizontal steel wire is fixed on the pier of girder one end, the upper end of drawing the steel wire to one side articulates on the girder, draws the other end of steel wire and the other end rigid coupling of horizontal steel wire to one side, has hung a wire rope drawing the steel wire and the junction of horizontal steel wire to one side, the weight is fixed on wire rope, the mount pad is fixed subaerial, the displacement meter is installed on the gauge stand, and the displacement meter links to each other with the weight. The utility model discloses a weight hoist and mount are in the horizontal steel wire and the junction of drawing the steel wire to one side, can obtain the girder with the displacement of displacement meter measurement weight and by the amount of deflection of measurement station, solve the high problem of installing support long expense consuming time, have simple structure, advantage with low costs to the mounted position of displacement meter can arrange that application scope is wider according to the on -the -spot condition is nimble.
Description
Technical field
The utility model relates to bridge field, particularly a kind of bridge vertical deflection measurement mechanism.
Background technology
Bridge carries out loading test when detecting its load-bearing capacity, and its spaning middle section vertical deflection is a requisite evaluation index.During actual Test on Bridge Loading, generally below bridge, set up support, support is installed the amount of deflection of dial gauge or other displacement meter measurement bridge, and this method measuring accuracy is high, and data are reliable, but expense is large, and setup time is long.Someone is improved in the method for this measurement bridge mid-span deflection, as shown in Figure 1, in figure, 2 is mount pad, 3 is weight, and 4 is displacement meter, and 6 is girder, 7 is bridge pier, needing the position of carrying out deflection metrology to fix an iron wire, iron wire lower end suspention weight, the amount of deflection of dial gauge or other displacement meter measurement bridge is directly being installed on ground; This measuring method same accuracy is high, but below measuring position be river or other barrier time, the installation of displacement meter and reading are very difficult.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provide a kind of cost low, measure bridge vertical deflection measurement mechanism easily.
The technical scheme that the utility model solves the problem is: a kind of bridge vertical deflection measurement mechanism, comprise weight, displacement meter, girder and the bridge pier being positioned at girder two ends, also comprise horizontal wire, oblique pull steel wire, mount pad, one end of described horizontal wire is fixed on the bridge pier of girder one end, the upper end thereof of described oblique pull steel wire is on girder, the other end of oblique pull steel wire and the other end of horizontal wire affixed, a wire rope has been hung in the junction of oblique pull steel wire and horizontal wire, described weight is fixing on a steel cord, described mount pad fixes on the ground, described displacement meter is arranged on gauge stand, displacement meter is connected with weight.
In above-mentioned bridge vertical deflection measurement mechanism, dial gauge is counted in described displacement.
The beneficial effects of the utility model are: weight of the present utility model is lifted on the junction of horizontal wire and oblique pull steel wire, the amount of deflection of girder measured point can be obtained with the displacement of displacement meter measurement weight, solve mounting bracket length consuming time problem costly, there is the advantage that structure is simple, cost is low, and the installation site of displacement meter can according to field condition flexible arrangement, and the scope of application is wider.
Accompanying drawing explanation
Fig. 1 is that prior art adopts sash weight method to measure the structural representation of deflection of bridge span.
Fig. 2 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 2, the utility model comprises horizontal wire 1, mount pad 2, weight 3, displacement meter 4, oblique pull steel wire 5, girder 6 and bridge pier 7, bridge pier 7 is positioned at girder 6 two ends, one end of described horizontal wire 1 is fixed on the bridge pier 7 of girder 6 one end, the upper end thereof of described oblique pull steel wire 5 is on girder 6, the other end of oblique pull steel wire 5 and the other end of horizontal wire 1 affixed, a wire rope 9 has been hung at oblique pull steel wire 5 and link node 8 place of horizontal wire 1, described weight 3 is fixed on wire rope 9, described mount pad 2 fixes on the ground, described displacement meter 4 is arranged on gauge stand, displacement meter 4 is connected with weight 3, described displacement meter 4 is dial gauge.
Principle of work of the present utility model is as follows: when load is vertically added on girder 6, girder 6 occurs bending and deformation, the vertical downwarp of span centre.There is a certain displacement downwards in the upper extreme point of oblique pull steel wire 5, its node 8 be connected with horizontal wire 1 moves down under weight 3 acts on; Because the vertical displacement of node 8 is far less than the length of horizontal wire 1, the corner of horizontal wire 1 is very little, and its vertical force component can be ignored; Link node 8 still keeps balance, then the pulling force size of oblique pull steel wire 5 remains unchanged, and parallel moving down only occurs oblique pull steel wire 5; Measure the displacement of weight 3 with dial gauge, be the amount of deflection at the upper extreme point place that bridge is connected with oblique pull steel wire 5.
Claims (2)
1. a bridge vertical deflection measurement mechanism, comprise girder and the bridge pier being positioned at girder two ends, it is characterized in that: also comprise horizontal wire, oblique pull steel wire, weight, mount pad and displacement meter, one end of described horizontal wire is fixed on the bridge pier of girder one end, the upper end thereof of described oblique pull steel wire is on girder, the other end of oblique pull steel wire and the other end of horizontal wire affixed, a wire rope has been hung in the junction of oblique pull steel wire and horizontal wire, described weight is fixing on a steel cord, described mount pad fixes on the ground, described displacement meter is arranged on gauge stand, displacement meter is connected with weight.
2. bridge vertical deflection measurement mechanism as claimed in claim 1, is characterized in that: dial gauge is counted in described displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623903.5U CN204881498U (en) | 2015-08-19 | 2015-08-19 | Vertical measuring device that scratches of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623903.5U CN204881498U (en) | 2015-08-19 | 2015-08-19 | Vertical measuring device that scratches of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204881498U true CN204881498U (en) | 2015-12-16 |
Family
ID=54825861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520623903.5U Expired - Fee Related CN204881498U (en) | 2015-08-19 | 2015-08-19 | Vertical measuring device that scratches of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204881498U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643634A (en) * | 2016-12-28 | 2017-05-10 | 湖南科技大学 | Device for measuring water area-crossing bridge deflection and measurement method thereof |
| CN107036522A (en) * | 2016-11-30 | 2017-08-11 | 郑州大学 | A kind of Middle Or Small Span bridge boat structure vertical displacement measuring device and method |
| CN108629085A (en) * | 2018-04-08 | 2018-10-09 | 内蒙古大学 | A kind of girder structure Calculation Method of Deflection and apply its amount of deflection computing device |
| CN109405794A (en) * | 2018-11-30 | 2019-03-01 | 南昌大学 | A kind of displacement meter bracket and its setting method suitable for beam body amount of deflection on-site test |
| CN111289195A (en) * | 2020-03-04 | 2020-06-16 | 中国铁道科学研究院集团有限公司基础设施检测研究所 | Bridge deflection measuring system and measuring method |
| CN112213057A (en) * | 2020-09-11 | 2021-01-12 | 山西省交通科技研发有限公司 | Bridge deflection measuring heavy hammer |
-
2015
- 2015-08-19 CN CN201520623903.5U patent/CN204881498U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036522A (en) * | 2016-11-30 | 2017-08-11 | 郑州大学 | A kind of Middle Or Small Span bridge boat structure vertical displacement measuring device and method |
| CN107036522B (en) * | 2016-11-30 | 2023-05-26 | 郑州大学 | Device and method for measuring vertical displacement of water structure of middle-span and small-span bridge |
| CN106643634A (en) * | 2016-12-28 | 2017-05-10 | 湖南科技大学 | Device for measuring water area-crossing bridge deflection and measurement method thereof |
| CN108629085A (en) * | 2018-04-08 | 2018-10-09 | 内蒙古大学 | A kind of girder structure Calculation Method of Deflection and apply its amount of deflection computing device |
| CN108629085B (en) * | 2018-04-08 | 2023-03-28 | 内蒙古大学 | Beam type structure deflection calculation method and deflection calculation device applying same |
| CN109405794A (en) * | 2018-11-30 | 2019-03-01 | 南昌大学 | A kind of displacement meter bracket and its setting method suitable for beam body amount of deflection on-site test |
| CN111289195A (en) * | 2020-03-04 | 2020-06-16 | 中国铁道科学研究院集团有限公司基础设施检测研究所 | Bridge deflection measuring system and measuring method |
| CN112213057A (en) * | 2020-09-11 | 2021-01-12 | 山西省交通科技研发有限公司 | Bridge deflection measuring heavy hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20180819 |