CN105737799A - Detection method for perpendicularity of pier stand column - Google Patents
Detection method for perpendicularity of pier stand column Download PDFInfo
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- CN105737799A CN105737799A CN201610072809.4A CN201610072809A CN105737799A CN 105737799 A CN105737799 A CN 105737799A CN 201610072809 A CN201610072809 A CN 201610072809A CN 105737799 A CN105737799 A CN 105737799A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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Abstract
The invention provides a detection method for perpendicularity of a pier stand column.The method comprises the following steps that any position where a pier can be seen is selected as an observation station point; the average angle gamma 1 of the included angles alpha 1 and beta 1 formed between the horizontal line and observation lines from the observation point to the two side edges of the pier, the point of intersection of the edge of the angle and the outer wall of the pier is the point A, and coordinate values of the point A are measured; a point B is determined on the outer wall of the pier in the same way, and coordinate values of the point B are measured; according to the radius of the cross section of the pier, the circle center O1 and the circle center O2 of the cross sections where the point A and the point B are located are determined; a vertical line is formed from the point O1 to the central axis of a bridge deck, the vertical point of the point O2 on the vertical line is M1, and the perpendicularity of the first pier is obtained through calculation according to the distance between the O1/O2 and M1 and the perpendicular height difference between the point A and the point B.According to the method, a high-precision total station is adopted for detecting the perpendicularity of the stand column, the space projection of the central axis of a columnar building is obtained through multiple cross sections in a non-contact mode, reliable data is provided for building inclined state evaluation, and basic data is provided for avoiding and correcting stand column inclination.
Description
Technical field
The present invention relates to the technical field of verticality of stand column measuring method, especially, relate to the detection method of a kind of pier column perpendicularity.
Background technology
All the time, pier column measuring for verticality is a difficult problem.Verticality of stand column measuring method hangs normal line method, theodolite method, guiding ruler method etc., but shortcoming is obvious, hang normal line method wind-engaging, the impact of post height greatly, and water central post can not be measured, it is bigger that theodolite method measures water central post difficulty, and be typically only capable to detect the horizontal-shift with characteristic point position and slope, it is impossible to detect that the space of structures central axis is linear.Guiding ruler method is suitable only for shorter verticality of stand column and measures, and operation easier is big.
And adopt high precision total station to measure verticality of stand column, the weak point of above detection method can not only be overcome, accurately measure verticality of stand column, and the torsion angle of bridge pier (twin columns or multicolumn) can be measured, reflect bridge pier practical working situation accurately.Such as, Architecture and Construction of Hunan University, Central South University's mapping have employed such method in 2008 with the Yu Jiayong of national territory information engineering system, Shao Xudong in " column structures perpendicularity non-contact detection method and precision analysis thereof " that Wuhan University of Technology's journal is delivered: utilize the outline that non-contacting method cuts accurate target to be measured, measure its horizontal direction angle and vertical angle, calculate horizontal offset and slope according to side angle degree, and analyze its certainty of measurement according to the principle of least square.It is complicated that it calculates process, and difficulty is quite big.
Chinese patent CN103884320A establishes the detection method of a kind of structures perpendicularity, utilize the column type structures both sides of the edge that often place's cross-sectional diameter all differs all with the characteristic of its vertical centrage symmetry, and total powerstation can the function of horizontal sextant angle between accurate surveying any two points, draw the function of horizontal sextant angle between structures any two points, draw the horizontal angle angle value at center, any absolute altitude place of structures, if the horizontal angle angle value at center, these structures any absolute altitude place all should be equal, otherwise the difference of its angle is exactly perpendicularity.The disposable perpendicularity deviation value that can only detect a direction of the method, workload is big.
CN104344818A provides a kind of device and method for detecting column vertical degree, its device is include a horizontal location ring and three laser range sensors being installed on horizontal location ring, testing circuit and upper computer software system, according to horizontal location ring information of laser range sensor output when cylinder diverse location, native system judges that whether cylinder is vertical according to upper computer software system.This invention is contact method of testing, and for high-altitude, the cylinder that is manually awkward, the method has limitation.
CN104197888A discloses a kind of high-adaptability scaffold upright rod measuring for verticality method adopting image processing techniques, adopt image capture device, shooting needs the vertical rod of detection perpendicularity, obtain its digital picture, floor projection according to compressed images pixel obtains anchor point, select suitable anchor point fitting a straight line to continue to project to normal spatially, find out normal direction distribution peaks, namely obtain vertical rod perpendicularity.The method process is complicated, and anthropic factor is big on precision impact.
The industry needs a kind of verticality measuring method suitable in bridge pier, process simplicity badly.
Summary of the invention
Present invention aim at providing the detection method of a kind of pier column perpendicularity, the bridge pier directly contacted to solve existing measurement technology not to be suitable for, and the technical problem that the process of calculating is complicated far away from river surface central authorities, inconvenience.
For achieving the above object, the invention provides the detection method of a kind of pier column perpendicularity, step is as follows:
A, select arbitrary it can be seen that the position of the first bridge pier is survey station point；
B, measure observation station to angle α 1, β 1 between survey line and the horizontal line of the first bridge pier both sides of the edge, calculate the average angle γ 1 of angle α 1, β 1, the intersection point of the limit of this angle and the first bridge pier outer wall is a some A, the coordinate figure measuring A point is (X1, Y1, Z1), coordinate system is X is the direction vertical with bridge length direction, Y is the direction consistent with bridge length direction, and Z is the direction being perpendicular to ground level；
C, according to step B, on bridge pier outer wall, determine a B according to average angle γ 2, measure the coordinate figure of B point for (X2, Y2, Z2)；
D, radius R1 according to the first bridge pier cross section, it is determined that cross section center of circle O1 and the O2 at some A and some B place；
E, excessively a some O1 draw vertical line to bridge floor axis, and the some O2 vertical point on this vertical line is M1, and the perpendicularity of the first bridge pier is:
Preferably, some A and some B lays respectively at the two ends up and down of the first bridge pier.
Preferably, further comprise the steps of: after step D
F, method according to step B, C, D, it is thus achieved that cross section center of circle O3 and the O4 on the second bridge pier；
G, excessively a some O3 draw vertical line to bridge floor axis, and the some O4 vertical point on this vertical line is M2, and the perpendicularity of the second bridge pier is:
Preferably, further comprise the steps of: after step D
H, connection center of circle O1 and center of circle O3, it is thus achieved that straight line L1；Connect center of circle O2 and center of circle O4, it is thus achieved that straight line L2；The torsion angle that angle is bridge pier between straight line L1 and straight line L2 projection line in same level.
The method have the advantages that
The measurement of pier stud perpendicularity is the index needing in bridge quality testing process to measure, by requiring that the error between actual measurement perpendicularity and the design load of pier stud is maintained in certain allowed band in specification, go beyond the scope, then need pier stud is processed accordingly.
The present invention adopts the method that high precision total station column perpendicularity carries out detecting, adopt many sections, cordless to obtain the axis space projection of column structures, infallible data is provided, for avoiding, correct column to tilt to provide basic data for the assessment of structures heeling condition.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing constituting the part of the application is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the bridge pier essential structure elevation of the preferred embodiment of the present invention；
Fig. 2 is the relative position schematic diagram between the survey station point of the preferred embodiment of the present invention and column；
Fig. 3 is the cross section coordinate schematic diagram at the observation station A place of the preferred embodiment of the present invention；
Fig. 4 is the cross section coordinate schematic diagram at the observation station A of the preferred embodiment of the present invention, B place；
Fig. 5 is the cross section coordinate schematic diagram at the observation station A of the preferred embodiment of the present invention, B, C, D place；
The verticality of stand column that Fig. 6 is the preferred embodiment of the present invention calculates one of schematic diagram；
The verticality of stand column that Fig. 7 is the preferred embodiment of the present invention calculates the two of schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can limit according to claim and cover is implemented.
Referring to Fig. 1, Fig. 2 and Fig. 3, this application provides the detection method of a kind of pier column perpendicularity, step is as follows:
A, select arbitrary it can be seen that the position of the first bridge pier is survey station point；
B, measure observation station to angle α 1, β 1 between survey line and the horizontal line of the first bridge pier both sides of the edge, calculate the average angle γ 1 of angle α 1, β 1, the intersection point of the limit of this angle and the first bridge pier outer wall is a some A, the coordinate figure being gone out A point by total station survey is (X1, Y1, Z1), coordinate system is X is the direction vertical with bridge length direction, Y is the direction consistent with bridge length direction, and Z is the direction being perpendicular to ground level；
C, according to step B, on bridge pier outer wall, determine a B according to average angle γ 2, measure the coordinate figure of B point for (X2, Y2, Z2)；
D, radius R1 according to the first bridge pier cross section, it is determined that cross section center of circle O1 and the O2 at some A and some B place；
Point A and some B can lay respectively at the two ends up and down of the first bridge pier so that 2 vertical condition can as far as possible reacted between relatively long distance, can overall condition be held to some extent.If desired the vertical condition in short-range, can according to practical situation selected element A and some B particular location, or, selecting more sampling point is calculated, to obtain more accurate data.
E, excessively a some O1 draw vertical line to bridge floor axis, and the some O2 vertical point on this vertical line is M1, and the perpendicularity of the first bridge pier is:
Referring to Fig. 4 and Fig. 5, when needing the perpendicularity measuring another bridge pier, said method can be adopted, continue on corresponding bridge pier reconnaissance to be calculated.It is to say, after step D, it is also possible to including:
F, method according to step B, C, D, it is thus achieved that cross section center of circle O3 and the O4 on the second bridge pier；
G, excessively a some O3 draw vertical line to bridge floor axis, and the some O4 vertical point on this vertical line is M2, and the perpendicularity of the second bridge pier is:
Referring to Fig. 6, after the central coordinate of circle of the multiple cross sections obtained at least two bridge pier, also can connect center of circle O1 and center of circle O3, it is thus achieved that straight line L1；Connect center of circle O2 and center of circle O4, it is thus achieved that straight line L2；The torsion angle that angle is bridge pier between straight line L1 and straight line L2 projection line in same level.
It it is below specific embodiment.
Certain bridge adopts two-columned pier, bridge pier structure and measuring point numbering to see shown in accompanying drawing Fig. 1.Measuring process is as follows:
A, select arbitrary it can be seen that the position of the first bridge pier is survey station point, see accompanying drawing Fig. 2；
B, measure observation station to angle α 1=332 ° 32 ' 50 between survey line and the horizontal line of end section both sides of the edge under the first bridge pier right column ", β 1=329 ° 48 ' 39 ", calculate average angle γ 1=331 ° 10 ' 44 of angle α 1, β 1 "; the intersection point of the limit of this angle and the first bridge pier outer wall is a some A; the coordinate figure measuring A point is (24868.56; 39743.865; 62.182), as shown in accompanying drawing Fig. 3；
C, according to step B, according to average angle γ 2=331 ° 9 ' 6 " determining a B on bridge pier outer wall, the coordinate figure measuring B point is (24868.553,39743.865,69.066), and related measurement data is as follows:
End section α 2=332 ° 31 ' 14 on right column ", β 2=329 ° 46 ' 58 "
D, an A is projected in X/Y plane with some B, and in CAD, draws an A, some B and survey station, the radius R1=600mm according to the first bridge pier cross section, it is determined that cross section center of circle O1 and the O2 at some A and some B place, as shown in accompanying drawing Fig. 4；
E, in plane graph, cross a some O1 and draw vertical line to bridge floor axis, the some O2 vertical point on this vertical line is M1, and as shown in accompanying drawing Fig. 6, the perpendicularity of the first bridge pier right column is:
F, method according to step B, C, D, it is thus achieved that cross section center of circle O3 and the O4 on the first bridge pier left column, as shown in figure 5 of the drawings, related measurement data is as follows:
End section α 3=339 ° 6 ' 19 under left column ", β 3=335 ° 35 ' 15 ", C point coordinates (24864.646,39748.348,62.53)
End section α 4=339 ° 3 ' 50 on left column ", β 4=335 ° 33 ' 7 ", D point coordinates (24864.632,39748.34,70.018)
G, excessively a some O3 draw vertical line to bridge floor axis, and the some O4 vertical point on this vertical line is M2, and as shown in accompanying drawing Fig. 6, the perpendicularity of the second bridge pier is:
H, connection center of circle O1 and center of circle O3, it is thus achieved that straight line L1；Connect center of circle O2 and center of circle O4, it is thus achieved that straight line L2；The torsion angle that angle is bridge pier between straight line L1 and straight line L2 projection line in same levelAs shown in Figure 7:
The torsion angle of bridge pier
Note: torsion angle, with bridge pier lower end center of circle O1 and O3 line for datum line, just clockwise turns to, rotates to be negative counterclockwise, and torsion angle ranges for [90 ° ,-90 °].
To sum up, by the method can measure easily and efficiently pier column direction across bridge and along bridge to perpendicularity, there is compared with hanging the methods such as normal line method, theodolite method, guiding ruler method degree of accuracy height, efficiency is high, be affected by the external environment the advantage such as little.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (4)
1. the detection method of a pier column perpendicularity, it is characterised in that step is as follows:
A, select arbitrary it can be seen that the position of the first bridge pier is survey station point；
B, measure observation station to angle α 1, β 1 between survey line and the horizontal line of the first bridge pier both sides of the edge, calculate the average angle γ 1 of angle α 1, β 1, the intersection point of the limit of this angle and the first bridge pier outer wall is a some A, the coordinate figure measuring A point is (X1, Y1, Z1), coordinate system is X is the direction vertical with bridge length direction, Y is the direction consistent with bridge length direction, and Z is the direction being perpendicular to ground level；
C, according to step B, on bridge pier outer wall, determine a B according to average angle γ 2, measure the coordinate figure of B point for (X2, Y2, Z2)；
D, radius R1 according to the first bridge pier cross section, it is determined that cross section center of circle O1 and the O2 at some A and some B place；
E, excessively a some O1 draw vertical line to bridge floor axis, and the some O2 vertical point on this vertical line is M1, and the perpendicularity of the first bridge pier is:
2. detection method according to claim 1, it is characterised in that some A and some B lays respectively at the two ends up and down of the first bridge pier.
3. detection method according to claim 1, it is characterised in that also include after step D:
F, method according to step B, C, D, it is thus achieved that cross section center of circle O3 and the O4 on the second bridge pier；
G, excessively a some O3 draw vertical line to bridge floor axis, and the some O4 vertical point on this vertical line is M2, and the perpendicularity of the second bridge pier is:
4. detection method according to claim 3, it is characterised in that also include after step D:
H, connection center of circle O1 and center of circle O3, it is thus achieved that straight line L1；Connect center of circle O2 and center of circle O4, it is thus achieved that straight line L2；The torsion angle that angle is bridge pier between straight line L1 and straight line L2 projection line in same level.
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Cited By (6)
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| CN106759554A (en) * | 2017-03-16 | 2017-05-31 | 四川省建筑科学研究院 | A kind of method for judging whether raked pile fractures in soil |
| CN110090475A (en) * | 2019-04-04 | 2019-08-06 | 中国二冶集团有限公司 | A kind of method of quick adjusting automatic rake-lifting concentrator central axis centering |
| CN111174771A (en) * | 2020-01-19 | 2020-05-19 | 中国十七冶集团有限公司 | Method for measuring verticality of stand column |
| CN112197697A (en) * | 2020-09-22 | 2021-01-08 | 华侨大学 | A measuring device and measuring method for the center position of a bridge pier column |
| CN113063405A (en) * | 2021-03-30 | 2021-07-02 | 云南航天工程物探检测股份有限公司 | Rapid and effective method and system for testing verticality of bridge circular pier |
| CN113483743A (en) * | 2021-05-14 | 2021-10-08 | 中交路桥建设有限公司 | Method for measuring lofting of ultrahigh pier slope ratio |
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| CN203893846U (en) * | 2014-06-16 | 2014-10-22 | 贵州路桥集团有限公司 | Pier stud perpendicularity measuring instrument |
| CN105258679A (en) * | 2015-11-11 | 2016-01-20 | 广东电网有限责任公司电力科学研究院 | Measuring device and method for transformer substation concrete frame stand column perpendicularity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106759554A (en) * | 2017-03-16 | 2017-05-31 | 四川省建筑科学研究院 | A kind of method for judging whether raked pile fractures in soil |
| CN110090475A (en) * | 2019-04-04 | 2019-08-06 | 中国二冶集团有限公司 | A kind of method of quick adjusting automatic rake-lifting concentrator central axis centering |
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| CN112197697A (en) * | 2020-09-22 | 2021-01-08 | 华侨大学 | A measuring device and measuring method for the center position of a bridge pier column |
| CN113063405A (en) * | 2021-03-30 | 2021-07-02 | 云南航天工程物探检测股份有限公司 | Rapid and effective method and system for testing verticality of bridge circular pier |
| CN113483743A (en) * | 2021-05-14 | 2021-10-08 | 中交路桥建设有限公司 | Method for measuring lofting of ultrahigh pier slope ratio |
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Denomination of invention: A method for detecting the verticality of bridge pier columns Effective date of registration: 20230613 Granted publication date: 20180323 Pledgee: Agricultural Bank of China Limited Changsha Wangcheng District sub branch Pledgor: Hunan Lianzhi Technology Co.,Ltd. Registration number: Y2023980043732 |
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