CN208366268U - A kind of middle-small span beam deflection dynamic measurement device - Google Patents
A kind of middle-small span beam deflection dynamic measurement device Download PDFInfo
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- CN208366268U CN208366268U CN201821098058.4U CN201821098058U CN208366268U CN 208366268 U CN208366268 U CN 208366268U CN 201821098058 U CN201821098058 U CN 201821098058U CN 208366268 U CN208366268 U CN 208366268U
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Abstract
The utility model discloses a kind of middle-small span beam deflection dynamic measurement devices, including test platform, the first support unit, electromechanical dial gauge and the second support unit；Electromechanical dial gauge is located at below test platform, and the indicator of electromechanical dial gauge is contacted with test platform, and electromechanical dial gauge is connected with data acquisition unit by data line；First support unit includes two pedestals, it is fixed with the first column on the base, first the upper end of the column is fixed with vertical fixed plate, is provided with multiple steel wire sliding rails being parallel to each other in the horizontal direction between two fixed plates, columnar sliding block is slidably fixed on steel wire sliding rail；Test platform is mounted on the lower surface of sliding block；Second support unit successively includes pedestal, the second column, fixed frame, lower floor support, upper layer bracket and erecting bed from bottom to up.The utility model structure is simple, and installation is easy to operate, and easy to carry, deflection metrology data are accurate, can measure multiple sections simultaneously, not by extraneous and human factor interference.
Description
Technical field
The utility model belongs to science of bridge building technical field of measuring equipment, and in particular to a kind of middle-small span beam deflection is dynamic
State measuring device.
Background technique
With the increase of China's volume of traffic and the long-term operation of bridge, Mid and minor spans armored concrete, prestressed concrete
All there is beam body downwarp in the bridges such as soil, seriously affect the structure in bridge operation stage use it is safe.Deflection of bridge span is examined at present
(prison) survey method mainly has: 1. setting up scaffold below the beam body of tested bridge, this method not only complex procedures are time-consuming to take
Power, risk is big, and the unstable and base foundation differential settlement of scaffold also will affect the test result of deflection of bridge span,
Particularly, when having river under bridge or requiring to open the navigation or air flight under bridge, there is installation and lay many practical problems such as inconvenience；2. according to optics original
Precision level made of managing, total station survey method, this method or device are big by extraneous and human factor interference, need people
Work helps ruler and reading, cannot be measured simultaneously multiple sections simultaneously, and is not suitable in the engineering of bad environments long-term continuous sight
It surveys.
Summary of the invention
For the defects in the prior art and insufficient, the utility model provides a kind of middle-small span beam deflection dynamic survey
Device is measured, existing highway bridge amount of deflection is overcome to detect complex procedures, the defect of test result inaccuracy.
In order to achieve the above objectives, the utility model takes the following technical solution:
A kind of middle-small span beam deflection dynamic measurement device including test platform, supports first of the test platform
Support unit, electromechanical dial gauge and the second support unit for supporting the electromechanics dial gauge；The electromechanics dial gauge is located at test platform
Lower section, and the indicator of electromechanical dial gauge is contacted with test platform, the electromechanics dial gauge is connected with data acquisition by data line
Unit；
First support unit includes two pedestals, is fixed with the first column on the base, the first the upper end of the column is fixed
There is vertical fixed plate, multiple steel wire sliding rails being parallel to each other is provided in the horizontal direction between two fixed plates, in steel wire
Columnar sliding block is slidably fixed on sliding rail；The test platform is mounted on the lower surface of sliding block；
Second support unit successively includes pedestal, the second column, fixed frame, lower floor support, upper layer branch from bottom to up
Frame and erecting bed；The electromechanics dial gauge is mounted on erecting bed upper end, and level meter is also equipped on erecting bed.
The utility model also has following technical characteristic:
Optionally, the movable base that the pedestal includes fixed pedestal and is fixed on above fixed pedestal by thumb screw handwheel
Seat, the fixed pedestal are equipped with level meter for being fixed on bridge, the movable base upper end, and first uprights vertical is solid
It is scheduled on the center of movable base；The thumb screw handwheel and level meter are used to movable base being adjusted to horizontality；
Multiple ducts are equipped in the sliding block, the duct is for slidably solid by sliding block after so that steel wire sliding rail is passed through duct
It is scheduled on steel wire sliding rail；
First column includes that upper screw thread column, sleeve and lower screw thread column, sleeve pass through thread set from top to bottom
On the lower part of upper screw thread column and the top of lower screw thread column, to realize the adjustable in length of the first column, by adjusting the
The length of one column realizes the detection of the bridge of different longitudinal slopes.
Optionally, the pedestal includes lower bottom base and is fixed on the upper bed-plate above lower bottom base, institute by thumb screw handwheel
It states lower bottom base and is equipped with level meter for being fixed on bridge, the upper bed-plate upper end, the thumb screw handwheel and level meter are used for
Upper bed-plate is adjusted to horizontality；
There are four second columns, and four the second columns are according to distributed rectangular and are vertically fixed on upper bed-plate, fixed
Frame is rectangular configuration, and four angles of fixed frame are respectively fitted on four the second columns by annulus；
The lower floor support and upper layer bracket are rectangular configuration, and lower floor support is mounted on fixed frame and can be along fixed frame
Two parallel edges sliding；Upper layer bracket is mounted on lower floor support and can slide along two parallel edges of lower floor support；Upper layer bracket
It is mutually perpendicular to the slidably direction of lower floor support；The erecting bed is mounted in upper layer bracket.
Optionally, it is equipped with sliding slot in the side wall of fixed frame, is mounted on fixed frame for realizing lower floor support and can be along solid
Determine the two parallel edges sliding of frame；
It is equipped with sliding slot in the side wall of lower floor support, is mounted on lower floor support for realizing upper layer bracket and can be along lower layer's branch
Two parallel edges of frame slide.
Optionally, stop nut is equipped between the fixed frame and the second column, for adjusting and fixing fixed frame the
Position on two columns；
Stop nut is equipped between the fixed frame and lower floor support, for adjust and fix fixed frame and lower floor support it
Between relative position；
Stop nut is equipped between the lower floor support and upper layer bracket, for adjusting and fixing lower floor support and upper layer branch
Relative position between frame.
Optionally, the erecting bed center is equipped with the mounting hole for electromechanical dial gauge to be fixedly mounted.
Optionally, it is set in the fixed plate there are four through-hole, four through-holes are distributed in fixed plate as rectangular, the steel wire
There are four sliding rails, and steel wire sliding rail and through-hole correspond, and the end anchorage of the steel wire sliding rail is on through-hole.
Optionally, the sliding block and test platform are not limited to one, so as to which sliding block and survey is arranged according to testing requirement
The quantity of examination platform is realized while monitoring the amount of deflection of multiple positions.
Optionally, scale is indicated on the steel wire sliding rail.
Compared with prior art, beneficial has the technical effect that the utility model
(I) the utility model structure is simple, install it is easy to operate, easy to carry, deflection metrology data are accurate, it is light-weight and
It is stable and reliable for performance, multiple sections can be measured simultaneously, not by extraneous and human factor interference, can effectively solve in the prior art
The problems such as deflection of bridge span test is inconvenient, time-consuming, deflection test is inconvenient with scaffold building.
(II) first support unit of the utility model can by adjust the first column length adjustment fixed plate height,
To meet the bridge survey demand of different longitudinal slopes；The steel wire sliding rail of the utility model has enough length, light-weight and mark
There is scale, be able to achieve the accurate positioning of testing section, and multiple sliding blocks that can connect on steel wire sliding rail reach more testing sections simultaneously
The effect of test；The movable base of the utility model, upper bed-plate are mounted on level meter on erecting bed, to guarantee that steel wire is sliding
The verticality of the parallel and electromechanical dial gauge of rail, is effectively ensured the accuracy of deflection metrology.
(III) the utility model using effect is good, deflection test data are accurate and practical value is high, avoids setting up at bridge bottom
The problems such as scaffold, inaccurate measurement data.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the overall structure diagram of the utility model use state.
Fig. 3 is the base construction schematic diagram of the utility model.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the schematic diagram of base structure of the utility model.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the slide block structure schematic diagram of the utility model.
The top view of Fig. 8 Fig. 7.
Fig. 9 is the top view at the A of Fig. 1.
Each label indicates in figure are as follows: 1- test platform, the first support unit of 2-, 3- electromechanics dial gauge, 4- second support list
Member, 5- data acquisition unit, 6- bridge；
21- pedestal, 211- fixed pedestal, 212- movable base, the first column of 22-, the upper screw thread column of 221-, 222- set
Tin, screw thread column under 223-, 23- fixed plate, 24- steel wire sliding rail, 25- sliding block, the duct 251-；
41- pedestal, 411- lower bottom base, 412- upper bed-plate, the second column of 42-, 43- fixed frame, 44- lower floor support, on 45-
Layer bracket, 46- erecting bed.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with Figure of description.It should be understood that
It is that specific embodiment described herein is merely to illustrate and explains the utility model is not intended to limit the utility model.
As shown in Figures 1 to 9, the utility model provides a kind of middle-small span beam deflection dynamic measurement device, including
Test platform 1, the first support unit 2 for supporting the test platform, electromechanical dial gauge 3 and support second of the electromechanics dial gauge
Support unit 4；Electromechanical dial gauge 3 is located at 1 lower section of test platform, and the indicator of electromechanical dial gauge 3 is contacted with test platform 1, electromechanical
Dial gauge 3 is connected with data acquisition unit 5 by data line；First support unit 2 includes two pedestals 21, solid on pedestal 21
Surely there is the first column 22,22 upper end of the first column is fixed with vertical fixed plate 23, along level side between two fixed plates 23
To multiple steel wire sliding rails 24 being parallel to each other are provided with, columnar sliding block 25 is slidably fixed on steel wire sliding rail 24；Institute
State the lower surface that test platform 1 is mounted on sliding block 25；Second support unit 4 successively includes pedestal 41, the second column from bottom to up
42, fixed frame 43, lower floor support 44, upper layer bracket 45 and erecting bed 46；The electromechanics dial gauge 3 is mounted on erecting bed 46
End, is also equipped with level meter on erecting bed 46.
Through the above technical solutions, middle-small span beam deflection dynamic measurement device structure letter provided by the utility model
Single, installation is easy to operate, and easy to carry, deflection metrology data are accurate, light-weight and stable and reliable for performance, can measure simultaneously multiple
Section can effectively solve in the prior art that deflection of bridge span test scaffold building is not not by extraneous and human factor interference
Just, time-consuming, the problems such as deflection test is inconvenient.First support unit of the utility model can be by adjusting the first column
The height of length adjustment fixed plate, to meet the bridge survey demand of different longitudinal slopes；The steel wire sliding rail of the utility model has
It is enough length, light-weight and indicate scale, it is able to achieve the accurate positioning of testing section, and multiple cunnings that can connect on steel wire sliding rail
Block achievees the effect that more testing sections while testing；The movable base of the utility model, upper bed-plate are mounted on water on erecting bed
The accuracy of deflection metrology is effectively ensured to guarantee the verticality of the parallel and electromechanical dial gauge of steel wire sliding rail in level.
In the present embodiment, the pedestal 21 includes fixed pedestal 211 and is fixed on fixed base by thumb screw handwheel
The movable base 212 of seat top, for being fixed on bridge 6,212 upper end of movable base is equipped with the fixed pedestal 211
Level meter, first column 22 are vertically fixed on the center of movable base 212；The thumb screw handwheel and level meter are used
In movable base 212 is adjusted to horizontality；Multiple ducts 251 are equipped in sliding block 25, the duct 251 is for keeping steel wire sliding
Sliding block 25 is slidably fixed on steel wire sliding rail 24 by rail 24 after passing through duct 251；First column 22 includes upper spiral shell from top to bottom
Line column 221, sleeve 222 and lower screw thread column 223, sleeve 222 by thread set upper screw thread column 221 lower part and under
The top of screw thread column 223, to realize the adjustable in length of the first column 22, the length by adjusting the first column 22 is realized
The detection of the bridge of different longitudinal slopes.
In the present embodiment, the pedestal 41 includes lower bottom base 411 and is fixed on lower bottom base 411 by thumb screw handwheel
The upper bed-plate 412 of top, the lower bottom base 411 are equipped with level meter, institute for being fixed on bridge 6,412 upper end of upper bed-plate
It states thumb screw handwheel and level meter is used to upper bed-plate 412 being adjusted to horizontality；There are four second columns 42, and four second vertical
Column 42 is according to distributed rectangular and is vertically fixed on upper bed-plate 412, and fixed frame 43 is rectangular configuration, and four angles of fixed frame 43 are logical
Annulus is crossed to be respectively fitted on four the second columns 42；Lower floor support 44 and upper layer bracket 45 are rectangular configuration, lower floor support 44
It is mounted on fixed frame 43 and can be slided along two parallel edges of fixed frame 43；Upper layer bracket 45 is mounted on lower floor support 44 and energy
Two parallel edges along lower floor support 44 slide；The slidably direction of upper layer bracket 45 and lower floor support 44 is mutually perpendicular to；The peace
Dress platform 46 is mounted in upper layer bracket 45.
Specifically, fixed frame 43 side wall be equipped with sliding slot, be mounted on fixed frame 43 for realizing lower floor support 44 and
It can be slided along two parallel edges of fixed frame 43；It is equipped with sliding slot in the side wall of lower floor support 44, for realizing the installation of upper layer bracket 45
It can slide on lower floor support 44 and along two parallel edges of lower floor support 44.
Specifically, stop nut is equipped between the fixed frame 43 and the second column 42, for adjusting and fixing fixed frame
43 position on the second column 42；Stop nut is equipped between fixed frame 43 and lower floor support 44, for adjusting and fixing
Determine the relative position between frame 43 and lower floor support 44；It is equipped with stop nut between lower floor support 44 and upper layer bracket 45, is used for
Adjust the relative position between fixed lower floor support 44 and upper layer bracket 45.
In the present embodiment, 46 center of erecting bed is equipped with the mounting hole for electromechanical dial gauge 3 to be fixedly mounted.
Specifically, setting in the fixed plate 23, there are four through-holes, and four through-holes are distributed in fixed plate 23 as rectangular, described
There are four steel wire sliding rails 24, and steel wire sliding rail 24 and through-hole correspond, and the end anchorage of the steel wire sliding rail 24 is on through-hole.
In other embodiments, the sliding block 25 and test platform 1 are not limited to one, so as to according to testing requirement
The quantity that sliding block 25 and test platform 1 is arranged is realized while monitoring the amount of deflection of multiple positions.
In present embodiment, scale is indicated on the steel wire sliding rail 24, to be able to achieve the accurate positioning of testing section.
The utility model is when in use: fixed pedestal 211 being fixed on 6 both ends of bridge first, upper screw thread column 221 is under
Screw thread column 223 connects by sleeve 222 and adjusts height, and adjustment level meter makes the first support unit 2 be in horizontality, so
The tension of steel wire sliding rail 24 is anchored in the through-hole of fixed plate 23 afterwards, the essence of test section is realized using the scale of steel wire sliding rail 24
It determines position, sliding block 25 is series in steel wire sliding rail 24；Lower bottom base 411 is fixed on bridge 6 again, adjust thumb screw handwheel and
Level meter makes the second support unit 4 be in horizontality, and then lower floor support 44 is moved to immediately below testing section, electromechanics hundred
Table 3 is divided to be fixed on erecting bed 46, indicator is contacted with test platform 1, keeps certain precompression, and electromechanical dial gauge 3 passes through data
Line is connected with data acquisition unit 5, which is all installed.Referring to Fig.1, the observation work before being loaded is led to
It crosses data acquisition unit 5 and carries out the initial reading before section bridge 6 to be tested loads；Referring to Fig. 2, observation work when being loaded
Make, deflection value when section bridge 6 to be tested load is carried out by data acquisition unit 5, and be depicted as amount of deflection time graph, it is real
The dynamic measurement of existing deflection of bridge span.
The preferred embodiment of the utility model is described in detail in conjunction with attached drawing above, still, the utility model is not limited to
Detail in above-described embodiment can be to the technical side of the utility model in the range of the technology design of the utility model
Case carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.
It is further to note that each particular technique feature described in the above specific embodiment, in not contradiction
In the case where, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the utility model is to various
No further explanation will be given for possible combination.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model, if its without prejudice to
The thought of the utility model equally should be considered as content disclosed in the utility model.
Claims (9)
1. a kind of middle-small span beam deflection dynamic measurement device, which is characterized in that including test platform (1), support the test
The first support unit (2) of platform, electromechanical dial gauge (3) and the second support unit (4) for supporting the electromechanics dial gauge；The machine
Electric dial gauge (3) is located at below test platform (1), and the indicator of electromechanical dial gauge (3) is contacted with test platform (1), the machine
Electric dial gauge (3) is connected with data acquisition unit (5) by data line；
First support unit (2) includes two pedestals (21), is fixed on pedestal (21) the first column (22), and first is vertical
Column (22) upper end is fixed with vertical fixed plate (23), is provided in the horizontal direction between two fixed plates (23) multiple mutual
Parallel steel wire sliding rail (24), is slidably fixed with columnar sliding block (25) on steel wire sliding rail (24)；The test platform
(1) it is mounted on the lower surface of sliding block (25)；
Second support unit (4) successively includes pedestal (41), the second column (42), fixed frame (43), lower layer from bottom to up
Bracket (44), upper layer bracket (45) and erecting bed (46)；The electromechanics dial gauge (3) is mounted on erecting bed (46) upper end, is pacifying
Level meter is also equipped on dress platform (46).
2. middle-small span beam deflection dynamic measurement device as described in claim 1, which is characterized in that pedestal (21) packet
It includes fixed pedestal (211) and the movable base (212) above fixed pedestal, the fixed pedestal is fixed on by thumb screw handwheel
(211) for being fixed on bridge (6), movable base (212) upper end is equipped with level meter, and first column (22) is vertical
It is fixed on the center of movable base (212)；The thumb screw handwheel and level meter are for movable base (212) to be adjusted to
Horizontality；
Multiple ducts (251) are equipped in the sliding block (25), the duct (251) is for making steel wire sliding rail (24) to pass through duct
(251) sliding block (25) is slidably fixed on steel wire sliding rail (24) after；
First column (22) includes upper screw thread column (221), sleeve (222) and lower screw thread column (223), set from top to bottom
Cylinder (222) by thread set in the lower part of upper screw thread column (221) and the top of lower screw thread column (223), to realize the
The adjustable in length of one column (22), the length by adjusting the first column (22) realize the detection of the bridge of different longitudinal slopes.
3. middle-small span beam deflection dynamic measurement device as described in claim 1, which is characterized in that pedestal (41) packet
It includes lower bottom base (411) and the upper bed-plate (412) above lower bottom base (411), the lower bottom base is fixed on by thumb screw handwheel
(411) for being fixed on bridge (6), upper bed-plate (412) upper end is equipped with level meter, the thumb screw handwheel and level meter
For upper bed-plate (412) to be adjusted to horizontality；
There are four second columns (42), and four the second columns (42) are according to distributed rectangular and are vertically fixed on upper bed-plate
(412) on, fixed frame (43) is rectangular configuration, and four angles of fixed frame (43) are respectively fitted over four the second columns by annulus
(42) on；
The lower floor support (44) and upper layer bracket (45) are rectangular configuration, and lower floor support (44) is mounted on fixed frame (43)
And it can be slided along two parallel edges of fixed frame (43)；Upper layer bracket (45) is mounted on lower floor support (44) and can be along lower floor support
(44) two parallel edges sliding；The slidably direction of upper layer bracket (45) and lower floor support (44) is mutually perpendicular to；The erecting bed
(46) it is mounted on upper layer bracket (45).
4. middle-small span beam deflection dynamic measurement device as claimed in claim 3, which is characterized in that in fixed frame (43)
Side wall is equipped with sliding slot, is mounted on fixed frame (43) for realizing lower floor support (44) and can be along two parallel edges of fixed frame (43)
Sliding；
It is equipped with sliding slot in the side wall of lower floor support (44), is mounted on lower floor support (44) for realizing upper layer bracket (45) and energy
Two parallel edges along lower floor support (44) slide.
5. middle-small span beam deflection dynamic measurement device as claimed in claim 3, which is characterized in that the fixed frame (43)
Stop nut is equipped between the second column (42), for adjusting and fixing position of the fixed frame (43) on the second column (42)
It sets；
Stop nut is equipped between the fixed frame (43) and lower floor support (44), for adjusting and fixing fixed frame (43) under
Relative position between layer bracket (44)；
Stop nut is equipped between the lower floor support (44) and upper layer bracket (45), for adjusting and fixing lower floor support (44)
With the relative position between upper layer bracket (45).
6. middle-small span beam deflection dynamic measurement device as described in claim 1, which is characterized in that the erecting bed (46)
Center is equipped with the mounting hole for electromechanical dial gauge (3) to be fixedly mounted.
7. middle-small span beam deflection dynamic measurement device as described in claim 1, which is characterized in that the fixed plate (23)
On set there are four through-hole, four through-holes are distributed on fixed plate (23) as rectangular, and there are four the steel wire sliding rails (24), and steel wire is sliding
Rail (24) and through-hole correspond, and the end anchorage of the steel wire sliding rail (24) is on through-hole.
8. middle-small span beam deflection dynamic measurement device as described in claim 1, which is characterized in that the sliding block (25) and
Test platform (1) is not limited to one, and the quantity so as to which sliding block (25) and test platform (1) is arranged according to testing requirement is realized
The amount of deflection of multiple positions is monitored simultaneously.
9. middle-small span beam deflection dynamic measurement device as described in claim 1, which is characterized in that the steel wire sliding rail
(24) scale is indicated on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821098058.4U CN208366268U (en) | 2018-07-11 | 2018-07-11 | A kind of middle-small span beam deflection dynamic measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821098058.4U CN208366268U (en) | 2018-07-11 | 2018-07-11 | A kind of middle-small span beam deflection dynamic measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208366268U true CN208366268U (en) | 2019-01-11 |
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ID=64925081
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821098058.4U Expired - Fee Related CN208366268U (en) | 2018-07-11 | 2018-07-11 | A kind of middle-small span beam deflection dynamic measurement device |
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| CN (1) | CN208366268U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870097A (en) * | 2019-03-25 | 2019-06-11 | 惠安县万物电子商务有限责任公司 | A kind of high-altitude deflection measuring apparatus of I-shaped large girder |
| CN111458089A (en) * | 2020-05-20 | 2020-07-28 | 温州砼程维禹科技有限公司 | Bridge deflection detection system |
| CN112050721A (en) * | 2020-08-25 | 2020-12-08 | 温州融宸科技有限公司 | Bridge deflection measuring device |
| CN113761640A (en) * | 2021-10-15 | 2021-12-07 | 长安大学 | Real-time testing system and method for three-dimensional deformation of bridge anti-overturning bearing capacity evaluation |
-
2018
- 2018-07-11 CN CN201821098058.4U patent/CN208366268U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870097A (en) * | 2019-03-25 | 2019-06-11 | 惠安县万物电子商务有限责任公司 | A kind of high-altitude deflection measuring apparatus of I-shaped large girder |
| CN109870097B (en) * | 2019-03-25 | 2020-11-27 | 温州博辉新材料科技有限公司 | High-altitude deflection measuring device for I-shaped large plate beam |
| CN111458089A (en) * | 2020-05-20 | 2020-07-28 | 温州砼程维禹科技有限公司 | Bridge deflection detection system |
| CN111458089B (en) * | 2020-05-20 | 2021-11-26 | 新疆生产建设兵团建筑工程科学技术研究院有限责任公司 | Bridge deflection detection system |
| CN112050721A (en) * | 2020-08-25 | 2020-12-08 | 温州融宸科技有限公司 | Bridge deflection measuring device |
| CN113761640A (en) * | 2021-10-15 | 2021-12-07 | 长安大学 | Real-time testing system and method for three-dimensional deformation of bridge anti-overturning bearing capacity evaluation |
| CN113761640B (en) * | 2021-10-15 | 2024-05-24 | 长安大学 | Bridge anti-overturning bearing capacity evaluation three-dimensional deformation real-time test system and method |
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Granted publication date: 20190111 Termination date: 20200711 |