CN106168478B - A kind of method of the Three-direction deformation of Deformation Monitoring seam two sides main structure - Google Patents
A kind of method of the Three-direction deformation of Deformation Monitoring seam two sides main structure Download PDFInfo
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- CN106168478B CN106168478B CN201610783237.0A CN201610783237A CN106168478B CN 106168478 B CN106168478 B CN 106168478B CN 201610783237 A CN201610783237 A CN 201610783237A CN 106168478 B CN106168478 B CN 106168478B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Abstract
The method of the Three-direction deformation of Deformation Monitoring seam two sides main structure provided by the invention, its Deformation Monitoring stitches two sides main structure in vertical, first level direction and the change in displacement of second horizontal direction vertical with first level direction, it is the following steps are included: S1, monitoring location is determined in the main structure of deformation joint two sides, the finishing layer and adjunct on main structure surface are cleared up, the member body in main structure is exposed；S2 installs monitoring device；S3 acquires data and carries out data processing.It is by the way of a double-shaft tilt angle sensor and a displacement monitoring component, and Deformation Monitoring stitches the deflection in tri- directions X, Y, Z of two sides main structure, and easy to operate, monitoring data are accurate.
Description
Technical field
The present invention relates to a kind of methods of the Three-direction deformation of Deformation Monitoring seam two sides main structure.
Background technique
In use due to engineerings such as large-scale construction of structures engineering or subterranean tunnels, by periphery construction, naturally drop
Water, earthquake, explosion etc. are artificially or the influence of natural cause, foundation soil body can occur different degrees of differential settlement or the soil body and move
It moves, whole or part sedimentation and deformation can occur for the main structure of engineering.For structure safety, in engineering design and construction process
In, the deformation joint of the types such as aseismatic joint, subsiding crack, expansion joint can be set as needed.When deforming, deformation joint two sides
Structural elements Relative Displacement shiftingizations can occur in vertical and two horizontal directions, that is, the vertical changing of the relative positions occurs, and (Z-direction is with respect to position
Move), the horizontal changing of the relative positions (X-direction relative displacement, the i.e. change in displacement in first level direction), horizontal space variation (Y-direction is with respect to position
It moves, i.e. the change in displacement of the second horizontal direction).At present to the monitoring means of Engineering Structure Distortion seam two sides main structure deformation
Are as follows: displacement sensor or slit gauge are respectively installed with vertical direction in the horizontal direction, two sides main body knot is directly measured by sensor
The relative deformation of structure.
Currently, the device of the Three-direction deformation of Deformation Monitoring seam two sides main structure is following two kinds: 1. Deformation Monitoring seam two
(Y-direction is opposite for the vertical changing of the relative positions of side main structure (Z-direction relative displacement), the horizontal changing of the relative positions (X-direction relative displacement) and spacing variation
Displacement) when, two horizontal displacement sensors are set in deformation joint, a vertical displacement sensor, and by sensor both ends
It is separately fixed in the structure of deformation joint two sides, captures the relative shift of deformation joint two sides main structure.2. three are displaced
Sensor, which is installed radially, passes through the angle between three sensors when structure deforms in malformation seam two sides
The data monitored with sensor are calculated, and obtain the deflection of structure in three directions.
Above-mentioned prior art is primarily present following two points defect: (1) above-mentioned scheme 1. is directed to, due to existing sensing
The mounting bracket of device is fixed in the main structure of two sides, when the opposite changing of the relative positions occurs for deformation joint two sides main structure, sensing
Device meeting generating system error, causes monitoring data to malfunction.For the X-direction changing of the relative positions only occurs, the horizontal position of deformation joint setting
Displacement sensor can occur to stretch or contraction distortion, the data monitored are accurate X-direction sliding deformation amounts, but simultaneously as
Y, the position between two installation points of two direction displacement sensor of Z is changed, and the distance between installation point becomes larger, displacement
Sensor will appear stretcher strain, and to while the changing of the relative positions, there are Y-directions and the Z-direction changing of the relative positions X occurs for the display structure of mistake.Similarly,
When Y-direction only occurring or Z-direction deforms, the displacement sensor in other two directions can also show and be deformed.And occurring two
Or three directions deformation when, the data of sensor will appear biggish error, and then influence technique personnel are to structure detection number
According to accurate analysis.(2) in addition, 1. and 2. deformation that above-mentioned current art scheme monitors three directions need to use three sensings
Device is respectively monitored three directions, and the data acquisition of three sensors needs to occupy three data channel on Acquisition Instrument.Together
When monitoring device occupied space it is also larger, after installation to space utilization will cause certain influence.
Summary of the invention
To overcome above-mentioned technical problem of the existing technology, the present invention provides a kind of Deformation Monitorings to stitch two sides main body knot
The method of the Three-direction deformation of structure, by the way of a double-shaft tilt angle sensor and a displacement monitoring component, Deformation Monitoring
The deflection for stitching tri- directions X, Y, Z of two sides main structure, solves the problems, such as the systematic error of the above-mentioned prior art.
The technical scheme to solve the above technical problems is that a kind of three-dimensional of Deformation Monitoring seam two sides main structure
The method of deformation, Deformation Monitoring stitch two sides main structure in vertical, first level direction and vertical with first level direction
The change in displacement of second horizontal direction comprising following steps:
S1 determines monitoring location in the main structure of deformation joint two sides, clears up the finishing layer on main structure surface and attached
Belong to object, exposes the member body in main structure；
S2 installs monitoring device
First support is mounted in the main structure of the first side in deformation joint two sides, second support is mounted on described
In the main structure of second side in deformation joint two sides；
Displacement monitoring component is mounted on displacement monitoring bracket, and the displacement monitoring bracket is mounted on first support
In second support；
Sensor mounting plate is installed on the top of connecting shaft, and double-shaft tilt angle sensor is mounted on sensor mounting plate
On, keep two monitoring axis directions of double-shaft tilt angle sensor parallel with the long side of sensor mounting plate and broadside respectively；
Displacement monitoring component is passed through signal wire with double-shaft tilt angle sensor respectively to connect with data acquisition device；
S3 acquires data and carries out data processing
According to the collected data, deformation joint two sides main structure sliding deformation amount vertically, first level side are calculated
Spacing variable quantity in upward sliding deformation amount and the second horizontal direction.
Based on the above technical solution, the present invention can also do following improvement.
Further, the first support includes first level bar, and the first end of the first level bar is provided with installation axle,
One end and the connection axis connection that the installation axle is not connect with the first level bar；It is radially square in the installation axle
To the first pin hole being provided with for installing the first spacer pin；Along the direction vertical with its extending direction on the first level bar
It is provided with the through-hole for installing the displacement monitoring bracket.
Further, the second end of the first level bar is mounted on the main structure of the first side in the deformation joint two sides
On.
Further, the first support further includes the first vertical bar, and first vertical bar and the first level bar hang down
Directly, the first end of first vertical bar is connect with the first level bar；The second end of first vertical bar is mounted on institute
In the main structure for stating the first side in deformation joint two sides.
Further, the second support includes the second horizon bar, and edge is vertical with its extending direction on second horizon bar
Direction be arranged at intervals with two keyways for installing trapezoidal key and one for installing the installation of the displacement monitoring bracket
Slot, the mounting groove are located at the same side of two keyways；Two parallel edges of the trapezoidal key are erected in the keyway,
And the length of any one parallel edges of the trapezoidal key is greater than the depth of the keyway.
Further, one end of second horizon bar is mounted on the main structure of second side in the deformation joint two sides
On.
Further, the second support further includes the second vertical bar, and second vertical bar and second horizon bar hang down
Directly, and the first end of second vertical bar is connect with second horizon bar；The second end of second vertical bar is mounted on
In the main structure of second side in the deformation joint two sides.
Further, the displacement monitoring bracket includes the first vertical bar and the second vertical bar disposed in parallel, the displacement monitoring
Component is set on first vertical bar and second vertical bar, and vertical with first vertical bar and the second vertical bar；Described
One vertical bar is arranged in the through hole far from one end of the displacement monitoring component, and first vertical bar and the first level
Bar generates the relative displacement in relative displacement and first level direction in vertical direction, and second vertical bar is far from the displacement
One end of monitoring component is mounted in the mounting groove.
Further, the connecting shaft includes metallic rod, metal sleeve and the metal being arranged on the metal sleeve outer wall
Batten；The direction vertical with its extending direction is provided with the peace matched with the installation axle at the first end of the metallic rod
Hole is filled, so that the installation axle is mounted in the mounting hole；Along the direction vertical with its extending direction in the metallic rod
It is provided with the second pin hole for installing the second spacer pin and the third pin hole for installing third spacer pin；The metallic rod
Second end passes through the metal sleeve, and limits the metal sleeve by second spacer pin and the third spacer pin
Position；The plane of the metal batten is parallel with the axis of the metal sleeve, and the metal batten is set to the sensing
On the lower surface of device mounting plate.
Further, an edge of the sensor mounting plate is arranged at intervals with two for installing the screw hole of bolt, and
Bolt in two screw holes is installed on to correspond with two trapezoidal keys respectively, and the bottom end of the bolt with it is described
The contact of incline plane of trapezoidal key.
Further, deformation joint two sides main structure is in first level direction, second level vertical with first level direction
The calculation formula of direction and vertical change in displacement are as follows:
A=(L+c) tg α,C=d；
Wherein, horizontal space of the L between first level bar and the cross-section center of the second horizon bar,For connecting shaft axis
The horizontal distance of the contact point of the heart and the trapezoidal key of bolt-, ψ are trapezoidal key inclined-plane angle with horizontal plane, and a is deformation joint two sides main body
The sliding deformation amount of structure vertically, b are sliding deformation amount of the deformation joint two sides main structure on first level direction, c
The spacing variable quantity for being deformation joint two sides main structure in the second horizontal direction, α are double-shaft tilt angle sensor along first level
The angle variable quantity of direction rotation, β are along the second horizontal direction rotational angle variable quantity, and d is that displacement monitoring component extends or contracts
Short variable quantity.
Compared with prior art, the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure provided by the invention,
Have the advantages that (1) present invention can monitor first level direction and vertical direction using double-shaft tilt angle sensor simultaneously
Change in displacement, occupy little space, be easily installed and safeguard；(2) double-shaft tilt angle sensor of the invention and displacement monitoring component
Connection with deformation joint two sides main structure is indirect, free-standing connection, when deformation joint two sides main structure occurs
When relative displacement, hardness will not be generated to double-shaft tilt angle sensor and displacement monitoring component and pullled, to can avoid due to lacking
Deformability two causes the Systematic Errors of monitoring data；(3) the present invention provides the first supports and two kinds of knots of two kinds of structures
The second support of structure can be respectively used on the horizontal plane for being mounted on deformation joint two sides main structure or on vertical plane.
Detailed description of the invention
Fig. 1 is the flow chart of the method for the Three-direction deformation that Deformation Monitoring provided by the invention stitches two sides main structure；
Fig. 2,3 for Deformation Monitoring provided by the invention stitch two sides main structure Three-direction deformation device structural representation
Figure；
Fig. 4 to 6 is the structural schematic diagram of first support provided by the invention；
Fig. 7 to 9 is the structural schematic diagram of second support provided by the invention；
Figure 10 is the structural schematic diagram of displacement monitoring bracket provided by the invention；
Figure 11 is the structural schematic diagram of connecting shaft provided by the invention；
Figure 12 is the structural schematic diagram of the sensor mounting plate provided by the invention for being equipped with double-shaft tilt angle sensor.
Detailed description of the invention:
1- deformation joint two sides main structure, 1-1- deformation joint, 2- double-shaft tilt angle sensor, 3- displacement monitoring component, 4-
One bracket, 4-1- first level bar, the first vertical bar of 4-2-, 5- second support, the second horizon bar of 5-1-, 5-2- second are vertical
Bar, 6- displacement monitoring bracket, 7- sensor mounting plate, 8- connecting shaft, 9- installation axle, the first pin hole of 10-, 11- through-hole, 12- key
Slot, 13- mounting groove, the first vertical bar of 14-, the second vertical bar of 15-, 16- metallic rod, 17- metal sleeve, 18- metal batten, 19- peace
Fill hole, the second pin hole of 20-, 21- third pin hole, the trapezoidal key of 22-.
Specific embodiment
As shown in Figure 1, the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure provided by the invention, monitoring become
Shape stitches two sides main structure in vertical, first level direction and the opposite position of second horizontal direction vertical with first level direction
Move variation comprising following steps:
S1 determines monitoring location in the main structure of deformation joint two sides, clears up the finishing layer on main structure surface and attached
Belong to object, exposes the member body in main structure；
S2 installs monitoring device
First support is mounted in the main structure of the first side in deformation joint two sides, second support is mounted on described
In the main structure of second side in deformation joint two sides；
Displacement monitoring component is mounted on displacement monitoring bracket, and the displacement monitoring bracket is mounted on first support
In second support；
Sensor mounting plate is installed on the top of connecting shaft, and double-shaft tilt angle sensor is mounted on sensor mounting plate
On, keep two monitoring axis directions of double-shaft tilt angle sensor parallel with the long side of sensor mounting plate and broadside respectively；
Displacement monitoring component is passed through signal wire with double-shaft tilt angle sensor respectively to connect with data acquisition device；
S3 acquires data and carries out data processing
According to the collected data, deformation joint two sides main structure sliding deformation amount vertically, first level side are calculated
Spacing variable quantity in upward sliding deformation amount and the second horizontal direction.
Displacement monitoring component therein can be displacement sensor or slit gauge, it is preferable that select slit gauge as displacement prison
Survey component, crack is calculated as telescopic structure, can Deformation Monitoring stitch two sides main structure spacing variable quantity, precision is not less than
0.1mm, range are not less than 30mm.Double-shaft tilt angle sensor therein monitors the angle change in two horizontal quadrature directions simultaneously,
Precision should be not less than 0.05 °, and range is not less than 10 °.
The present invention provides specific devices used by the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure, and
The method of the Three-direction deformation of Deformation Monitoring seam two sides main structure is described for specific device.
It should be noted that first level direction therein is X-direction in conjunction with the description of background technique, second is horizontal
Direction is Y-direction, and vertical direction is Z-direction.Displacement monitoring component therein can Deformation Monitoring seam two sides main structure in Y
The change in displacement in direction, the i.e. variation of the horizontal space of deformation joint two sides main structure；Double-shaft tilt angle sensor therein
Deformation Monitoring stitches two sides main structure in the change in displacement of X-direction, i.e. deformation joint two sides main structure position that the horizontal changing of the relative positions occurs
Move, can also Deformation Monitoring seam two sides main structure in the change in displacement of Z-direction, i.e., deformation joint two sides main structure is in short transverse
The displacement changing of the relative positions of upper generation.
As shown in Figure 2,3, the device of the Three-direction deformation of Deformation Monitoring seam two sides main structure includes double-shaft tilt angle sensor
2, displacement monitoring component 3, first support 4, second support 5, displacement monitoring bracket 6, sensor mounting plate 7 and connecting shaft 8；It is described
Double-shaft tilt angle sensor 2 is mounted on the upper surface of the sensor mounting plate 7, for monitoring the deformation joint two sides main body knot
Structure 1 is in first level direction and the change in displacement of the second vertical direction；The displacement monitoring component 3 is mounted on the displacement monitoring
On bracket 6, for monitoring deformation joint two sides main structure in the change in displacement of the second horizontal direction；The first support 4
It is separately mounted in deformation joint two sides main structure 1 with second support 5, the displacement monitoring bracket 6 is mounted on described
On one bracket 4 and second support 5；The sensor mounting plate 7 is set in the connecting shaft 8, the connecting shaft 8 and described the
The connection of one bracket 4.As shown in figure 3,1-1 show deformation joint in figure, 1 show deformation joint two sides main structure.
As shown in figure 4, the first support 4 is linear type, material is stainless steel, and the diameter of first support 4 can be
10mm, the i.e. first support 4 include first level bar 4-1, and the first end of the first level bar 4-1 is provided with installation axle 9,
The installation axle 9 is not connect with the one end connecting the first level bar 4-1 with the connecting shaft 8；First level bar 4-1's
Second end is mounted in the main structure of the first side in the deformation joint two sides, on column, wall or plate.Installation axle 9 therein
Axis smooth surface, and be processed by shot blasting, can also carry out other reduces the technical treatment of coefficient of frictions.Work as mounting surface
The one-shaped first support 4 can be used when being vertical.
As shown in Figure 5,6, which is " Г " shape or "T"-shaped, i.e., the first support 4 includes first level bar 4-1
With the first vertical bar 4-2, the first end of the first vertical bar 4-2 is connect with the first level bar 4-1；Described first is vertical
The 4-2 second end of bar is mounted in the main structure of the first side in the deformation joint two sides, on column, wall or plate；Described
The first end of one horizon bar 4-1 is provided with installation axle 9, one end that the installation axle 9 is not connect with the first level bar 4-1 with
The connecting shaft 8 connects.The axis smooth surface of installation axle 9 therein, and be processed by shot blasting, other drops can also be carried out
The technical treatment of low-friction coefficient." Г " shape or " T " shaped first support 4 can be used when mounting surface is horizontal plane.
For convenient for connecting shaft 8 and the connection of installation axle 9 that is set in first support 4, along its diameter in installation axle 9 therein
Direction is provided with the first pin hole 10 for installing the first spacer pin, connecting shaft 8 can be limited to by first spacer pin
On the certain position of installation axle 9, convenient for the installation of connecting shaft 8.To be installed in the first support 4 convenient for displacement monitoring bracket,
It can be also provided with along the direction vertical with its extending direction for installing the displacement monitoring bracket on first level bar 4-1
Through-hole 11.
As shown in fig. 7, the second support 5 is linear type, diameter can be 20mm, i.e. the second support 5 includes the second water
On flat bar 5-1, the second horizon bar 5-1 along the direction vertical with its extending direction be arranged at intervals with two for install it is trapezoidal
The keyway 12 of key 22 and one are located at described in two for installing the mounting groove 13 of the displacement monitoring bracket, the mounting groove 13
The same side of keyway 12；Two parallel edges of the trapezoidal key 22 are erected in the keyway 12, and times of the trapezoidal key 22
The length of one parallel edges is greater than the depth of the keyway 12.One end of second horizon bar 5-1 is mounted on the deformation joint two
In the main structure of second side in side, on column, wall or plate.
As shown in Figure 8,9, which is " Г " shape or "T"-shaped, i.e., the first support 5 includes the second horizon bar 5-1
With the second vertical bar 5-2, the second vertical bar 5-2 is vertical with the second horizon bar 5-1, and the second vertical bar 5-2
First end connect with the second horizon bar 5-1；The second end of the second vertical bar 5-2 is mounted on the deformation joint two sides
In second side main structure on；It is arranged at intervals on the second horizon bar 5-1 along the direction vertical with its extending direction
Two keyways 12 for installing trapezoidal key 22 and one are for installing the mounting groove 13 of the displacement monitoring bracket, the installation
Slot 13 is located at the same side of two keyways 12.The size of two keyways 12 therein meets wanting for the trapezoidal key 22 of firm installation
It asks, and each face is smooth in slot, such as keyway depth can be at least 3mm, length can be 25mm, and width can be at least 10mm.It is trapezoidal
Key 22 is adapted with keyway 12, which can be stainless steel material, and shape is right-angled trapezium, and trapezoidal waist is that is, trapezoidal
The angle of two non-parallel sides is 10 ° -15 °, and key thickness can be not less than 10mm, trapezoidal bottom, i.e., the length of two trapezoidal parallel edges
Degree can be at least 5mm, and be all larger than or equal to keyway 12 in second support 5 depth, trapezoidal key 22 install when, by trapezoidal key
22 two parallel edges setting is installed in keyway 12, and trapezoidal 22 inclined-plane of key is flat and smooth, and is processed by shot blasting, can also carry out
Other reduce the technical treatment of coefficient of friction.13 distance of mounting groove, two keyway intermediate point therein can be 60mm to 70mm, the peace
Tankage 13 can be the square groove or long square groove that side length can be 6mm, and depth can be 15mm, be easily installed displacement monitoring bracket.
Furthermore as shown in Figure 10, displacement monitoring bracket therein includes the first vertical bar 14 and the second vertical bar disposed in parallel
15, the displacement monitoring component 3 is set on first vertical bar 14 and second vertical bar 15, and with first vertical bar 14
It is vertical with the second vertical bar 15；Preferably, using slit gauge as displacement monitoring component, wherein one end of slit gauge is erected with first
The first end of bar 14 connects, and the other end of slit gauge is connect with the first end of the second vertical bar 15, and the of first vertical bar 14
The first end of one end and the second vertical bar 15 is in same horizontal line；The second end of first vertical bar 14, i.e., described first is perpendicular
Bar 14 is mounted in the through-hole 11 far from one end of the displacement monitoring component 3；The second end of second vertical bar 15, i.e. institute
The second vertical bar 15 is stated to be mounted in the mounting groove 13 far from one end of the displacement monitoring component 3.First vertical bar 14 therein
It can be the round bar of 3mm for diameter, length can be 35mm, and surface is processed by shot blasting, can also carry out other reduces coefficient of friction
Technical treatment, when installation, pierce into this bar in the through-hole 11 of first level bar 4-1, can preferably be located at the interposition of through-hole 11
It sets, the first vertical bar 14 and first level bar 4-1 may make to generate the opposite position in relative displacement and X-direction in Z-direction
It moves；Second vertical bar 15 therein is square metal bar, length 40mm, 13 phase of mounting groove in sectional dimension and second support 5
Cooperation, can be fixedly attached in second support 5.
When deformation joint two sides main structure is when X-direction is subjected to displacement variation, first support 4 is with main structure in X-direction
Upper movement, because the first vertical bar 14 is mounted in the through-hole of first support 4, so that first level bar 4-1 and the first vertical bar 14 are in X
Direction relatively moves, first support 4 because deformation joint two sides main structure X-direction generate change in displacement due to move when,
First vertical bar 14 will not then move, therefore the displacement monitoring component being set on the first vertical bar 14 and the second vertical bar 15 then will not be by
It stretches or shortens, to can avoid the problem of the monitoring result inaccuracy of displacement monitoring component.Similarly, when deformation joint two sides main body
When Z-direction is subjected to displacement variation, first support 4 moves structure in z-direction with main structure, because the first vertical bar 14 is mounted on
In the through-hole of first support 4, so that first level bar 4-1 is relatively moved in z-direction with the first vertical bar 14, at first
Frame 4 is because deformation joint two sides main structure is when Z-direction generates change in displacement due to moves, and the first vertical bar 14 will not then move, therefore
The displacement monitoring component being set on the first vertical bar 14 and the second vertical bar 15 will not be stretched or shorten, to can avoid displacement prison
Survey the problem of the monitoring result inaccuracy of component.
As shown in figure 11, connecting shaft 8 therein includes metallic rod 16, metal sleeve 17 and is arranged in the metal sleeve
Metal batten 18 on 17 outer walls；The installation matched with the installation axle 9 is provided at the first end of the metallic rod 16
Hole 19, so that the installation axle 9 is mounted in the mounting hole 19；Along vertical with its extending direction in the metallic rod 16
Direction be provided with the second pin hole 20 for installing the second spacer pin and the third pin hole 21 for installing third spacer pin；
The second end of the metallic rod 16 passes through the metal sleeve 17, and is limited by second spacer pin and the third spacer pin
The position of the fixed metal sleeve 17；The plane of the metal batten 18 and the axis of the metal sleeve 17 are parallel and described
Metal batten 18 is set on the lower surface of the sensor mounting plate 7.16 diameter of metallic rod therein can be 10mm, and length can
For 50mm to 80mm, surface is processed by shot blasting, can also carry out other reduces the technical treatment of coefficient of friction, is set in metallic rod 16
Fixed the second spacer pin and third spacer pin can be screwed by setting；It is provided at the first end of metallic rod 16 and 9 phase of installation axle
The mounting hole 19 of cooperation, hole inner wall is smooth and is processed by shot blasting, can also carry out other reduces the technical treatment of coefficient of friction, hole
Diameter is matched with the outer diameter of the installation axle 9 in first support 4, be may make metallic rod 16 to rotate around installation axle 9, is passed through first support
The first spacer pin on 4 is limited in first support 4；16 second end of metallic rod penetrates metal sleeve 17, can be by metallic rod 16
The second spacer pin and third spacer pin limit the position of metal sleeve 17, the diameter of the internal diameter of metal sleeve 17 and metallic rod 16
It matches, wall thickness can be 2mm to 3mm, and length can be 20mm, and inner wall is processed by shot blasting, may make metal sleeve 17 and metal
It can produce relative movement between bar 16 in the Y direction；The size of metal batten 18 can be 10mm × (40mm on metal sleeve 17
It to 50mm) × 2mm, is welded on metal sleeve 17, surface is straight, distortion free, and the plane and metal of metal batten 18
The axis of sleeve 17 is parallel, and the metal batten 18 is set on the lower surface of the sensor mounting plate 7.
As shown in figure 12, an edge of sensor mounting plate 7 is arranged at intervals with two for installing the screw hole of bolt, and
The bolt being installed in two screw holes is corresponded with two trapezoidal keys 22 respectively, and the bottom end of the bolt and institute
State the contact of incline plane of trapezoidal key 22.Preferably, which is aluminium material, and rectangle, short side and double-shaft tilt angle pass
The size of sensor 2 is identical, long side than 2 size of double-shaft tilt angle sensor can big 15mm to 20mm, plate thickness can be 2mm to 3mm.It is double
Axial rake sensor 2 can be installed by other bolt or reliable adhesive is pasted on sensor mounting plate 7, sensor peace
The side short side of loading board 7, such as can be away from two threaded holes are bored at edge 5mm, aperture can be 5mm to 8mm, in two threaded holes
Bolt is installed respectively, bolt diameter therein is matched with 7 upper screwed hole internal diameter of sensor mounting plate, and bolt is pacified with nut
On sensor mounting plate 7, length can be 20mm, and the nut thickness being used cooperatively with bolt is no more than 3mm, and outer diameter is not more than
10mm, bolt edges at two ends does fillet processing, and is processed by shot blasting, can also carry out other reduces the technical office of coefficient of friction
Reason.
When installing the sensor mounting plate 7, so that two on the bottom of the bolt in two threaded holes and second support 5
The contact of incline plane of a keyway 12, and guarantee that the bottom of two bolts is in same horizontal line.When deformation joint two sides main structure
When X-direction is subjected to displacement variation, first support 4 and second support 5 are subjected to displacement variation therewith in the X direction, so that sensing
Relative displacement occurs in the X direction for device mounting plate 7 and the trapezoidal key 22 being set in second support 5, to change sensor
The contact point of two bolts and two trapezoidal 22 inclined-planes of key on mounting plate 7, shows that one of contact point is low, another connects
The high phenomenon in contact, the double-shaft tilt angle sensor 2 resulted on sensor mounting plate 7 are rotated around connecting shaft axis, thus
The change in displacement of deformation joint two sides main structure in the X direction can be calculated according to the rotational angle of the double-shaft tilt angle sensor 2.
When deformation joint two sides main structure is when Z-direction is subjected to displacement variation, first support 4 and second support 5 are in Z-direction
On be subjected to displacement variation therewith, because on the one hand sensor mounting plate is contacted by trapezoidal key 22 with second support 5, further through connection
Axis 8 is contacted with first support 4, results in 7 run-off the straight of sensor mounting plate, so that the double-shaft tilt angle on sensor mounting plate 7
Sensor 2 is rotated around X-direction, meanwhile, double-shaft tilt angle sensor 2 rotates around X-direction and drives metal sleeve 17 and metallic rod 16 1
It rises and is rotated around X-direction, that is, so that metallic rod 16 is rotated around connected installation axle 9, so as to be passed according to the double-shaft tilt angle
Sensor 2 calculates the change in displacement of deformation joint two sides main structure in z-direction around the rotational angle of X-direction.
When deformation joint two sides main structure generates displacement in the Y direction, first support 4 and second support 5 are in the Y direction
On be subjected to displacement therewith so that be located at first support 4 and second support 5 on displacement monitoring component 3 occur stretch or shrink, from
And deformation joint two sides main structure can be obtained according to the stretching or contracted length of displacement monitoring component 3 and generate position on the direction Y
It moves.Meanwhile deformation joint two sides main structure is generated in the Y direction when being displaced, and is connect with the installation axle 9 on first level bar 4-1
Metallic rod 16 displacement of Y-direction then occurs with the movement of first support so that metallic rod 16 and metal sleeve 17 are in the side Y
Relative displacement occurs upwards and ensure that the double-shaft tilt angle being set on metal sleeve 17 at this point, metal sleeve 17 then remains stationary
Sensor 2 will not rotate, and avoid and pass when deformation joint two sides main structure generates displacement in the Y direction to double-shaft tilt angle
The influence of sensor 2.
In addition, it is necessary to explanation, when installing the device of Three-direction deformation of above-mentioned Deformation Monitoring seam two sides main structure,
In addition to foregoing description content, the following conditions are also needed to meet: double-shaft tilt angle sensor is mounted on sensor mounting plate, make double
Two angle monitor directions of axial rake sensor are parallel with the long side of sensor mounting plate and broadside respectively；Sensor mounting plate
The central axis of the symmetry axis of 7 two long sides and the connecting shaft 8 is parallel to each other in same vertical plane；Sensor
The bottom end of two bolts on mounting plate 7 respectively with point contact in the inclined-plane of corresponding trapezoidal key 22, and adjust sensor installation
Length of the bolt under sensor mounting plate 7 on plate 7 is set to first water so that metallic rod 16 is in horizontality
Between the midpoint of the installation axle 9 of the first end of flat bar 4-1 and two keyways 12 being set on the second horizon bar 5-1
Midpoint should be at same level；Two be set in two keyways 12 on the second horizon bar 5-1 are described trapezoidal
The inclined-plane of key 22 is upward, and the central axis of the inclined-plane midpoint of two trapezoidal keys 22 and the connecting shaft 8 is in same water
In plane.
After being installed, data acquisition can be carried out, according to the angle and displacement monitoring structure of double-shaft tilt angle sensor rotation
Displacement is shortened in the stretching of part, calculates displacement of the deformation joint two sides main structure in X-direction, Y-direction and Z-direction.Setting the
Horizontal space between one horizon bar 4-1 and the cross-section center of the second horizon bar 5-1 is L, 8 axle center of connecting shaft and bolt-ladder
The horizontal distance of the contact point of shape key is；Trapezoidal key inclined-plane angle with horizontal plane is ψ, and deformation joint two sides main structure 1 is vertical
On, i.e., the sliding deformation amount in Z-direction is a, mistake of the deformation joint two sides main structure 1 on first level direction, i.e., in X-direction
Dynamic deformation amount is b, and for deformation joint two sides main structure 1 in the second horizontal direction, i.e., the spacing variable quantity in Y-direction is c, twin shaft
Obliquity sensor 2 is α along the angle variable quantity that first level direction rotates, and is β along the second horizontal direction rotational angle variable quantity,
Displacement monitoring component 3, if the variable quantity of slit gauge elongated or shortened is d.
When deformation joint two sides main structure 1 only in an X direction on change when, the mathematical relationship of b and β are as follows:
A=0, c=0；
When deformation joint two sides main structure 1 only changes in the Y direction:
A=0, b=0, c=d
When only the Z-direction changing of the relative positions occurs for deformation joint two sides main structure 1:
A=Ltg α, b=0, c=0；
When the variation of X, Y, Z three-dimensional occurs for deformation joint two sides main structure 1:
A=(L+c) tg α,C=d；
The method of the Three-direction deformation of Deformation Monitoring seam two sides main structure provided by the invention, uses double-shaft tilt angle to sense
Device can monitor the change in displacement of first level direction and vertical direction simultaneously, occupy little space, and be easily installed and safeguard；In addition,
The connection of double-shaft tilt angle sensor and displacement monitoring component and deformation joint two sides main structure of the invention is indirect, non-solid
The connection of fixed pattern will not be to double-shaft tilt angle sensor and displacement monitoring when relative displacement occurs for deformation joint two sides main structure
Component generates hardness and pulls, to can avoid the Systematic Errors for causing monitoring data due to lacking deformability two；Furthermore this
Invention provides the first support of two kinds of structures and the second support of two kinds of structures, can be respectively used to be mounted on deformation joint two sides master
On the horizontal plane of body structure or on vertical plane.
In the description of the present invention, it should be noted that term "top", "bottom", " orientation of instructions such as "inner", "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as indicating
Or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
In the description of the present invention, it should be noted that the specific size of each components is used for the purpose of exemplary illustration,
Those skilled in the art's introduction according to the present invention can choose size appropriate to realize the device of the invention.
Following present two specific embodiments:
Embodiment 1
Measure wall horizontal and vertical Direction distortion, mounting surface be it is vertical, first support is linear type, and diameter is
10mm；Second support is linear type, diameter 15mm, and the keyway depth on the second horizon bar is 3mm, length 25mm, wide
Degree is 10mm；Trapezoidal key bevel angle ψ=10 °, between the level between first level bar and the cross-section center of the second horizon bar
Away from L=100mm, connecting shaft axle center and the horizontal distance of the contact point of the trapezoidal key of bolt-areA, b, c and α, β,
The respective value of d is as shown in table 1.
Table 1
Embodiment 2
Measure wall horizontal and vertical Direction distortion, mounting surface be it is vertical, first support is linear type, and diameter is
10mm；Second support is linear type, diameter 15mm, and the keyway depth on the second horizon bar is 3mm, length 25mm, wide
Degree is 10mm；Trapezoidal key bevel angle ψ=15 °, between the level between first level bar and the cross-section center of the second horizon bar
Away from L=100mm, connecting shaft axle center is with the trapezoidal bonded contact horizontal distance of bolt-A, b, c and α, β, d
Respective value is as shown in table 2.
| a(mm) | α(°) | b(mm) | β(°) | c(mm) | d(mm) |
| 1.00 | 0.57 | 1.00 | 0.77 | 1.00 | 1.00 |
| 1.99 | 1.12 | 2.00 | 1.54 | 2.00 | 2.00 |
| 3.00 | 1.67 | 3.01 | 2.32 | 3.00 | 3.00 |
| 4.00 | 2.20 | 3.99 | 3.09 | 4.00 | 4.00 |
| 5.01 | 2.73 | 4.99 | 3.87 | 5.00 | 5.00 |
| 6.00 | 3.24 | 6.00 | 4.66 | 6.00 | 6.00 |
| 7.01 | 3.75 | 7.00 | 5.45 | 7.00 | 7.00 |
| 7.99 | 4.23 | 8.01 | 6.25 | 8.00 | 8.00 |
| 9.00 | 4.72 | 9.00 | 7.04 | 9.00 | 9.00 |
| 10.01 | 5.20 | 9.99 | 7.84 | 10.00 | 10.00 |
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all in spirit of the invention
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of method of the Three-direction deformation of Deformation Monitoring seam two sides main structure, Deformation Monitoring stitch two sides main structure perpendicular
To, first level direction and the change in displacement of second horizontal direction vertical with first level direction, which is characterized in that including with
Lower step:
S1 determines monitoring location in the main structure of deformation joint two sides, clears up the finishing layer and adjunct on main structure surface,
Expose the member body in main structure；
S2 installs monitoring device
First support is mounted in the main structure of the first side in deformation joint two sides, second support is mounted on the deformation
In the main structure for stitching second side in two sides；
Displacement monitoring component is mounted on displacement monitoring bracket, and the displacement monitoring bracket is mounted on first support and
On two brackets；
Sensor mounting plate is installed on the top of connecting shaft, and double-shaft tilt angle sensor is mounted on sensor mounting plate, is made
Two monitoring axis directions of double-shaft tilt angle sensor are parallel with the long side of sensor mounting plate and broadside respectively；
Displacement monitoring component is passed through signal wire with double-shaft tilt angle sensor respectively to connect with data acquisition device；
S3 acquires data and carries out data processing
According to the collected data, deformation joint two sides main structure sliding deformation amount vertically is calculated, on first level direction
Sliding deformation amount and the second horizontal direction on spacing variable quantity；
Wherein, the first support includes first level bar, and the first end of the first level bar is provided with installation axle, the peace
One end and the connection axis connection that dress axis is not connect with the first level bar；
Radially direction is provided with the first pin hole for installing the first spacer pin in the installation axle；
It is provided with along the direction vertical with its extending direction for installing the displacement monitoring bracket on the first level bar
Through-hole；
Wherein, the second end of the first level bar is mounted in the main structure of the first side in the deformation joint two sides；
Wherein, the first support further includes the first vertical bar, and first vertical bar is vertical with the first level bar, described
The first end of first vertical bar is connect with the first level bar；The second end of first vertical bar is mounted on the deformation joint
In the main structure of the first side in two sides.
2. the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure according to claim 1, which is characterized in that institute
Stating second support includes the second horizon bar, is arranged at intervals with two along its axial direction on second horizon bar and is used to install ladder
The keyway of shape key and one are located at two keyways for installing the mounting groove of the displacement monitoring bracket, the mounting groove
The same side；Two parallel edges of the trapezoidal key are erected in the keyway, and the length of any one parallel edges of the trapezoidal key
Degree is greater than the depth of the keyway.
3. the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure according to claim 2, which is characterized in that institute
The one end for stating the second horizon bar is mounted in the main structure of second side in the deformation joint two sides.
4. the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure according to claim 2, which is characterized in that institute
Stating second support further includes the second vertical bar, and second vertical bar is vertical with second horizon bar, and described second is vertical
The first end of bar is connect with second horizon bar；The second end of second vertical bar is mounted in the deformation joint two sides
In the main structure of second side.
5. the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure according to claim 3 or 4, feature exist
In the displacement monitoring bracket includes the first vertical bar and the second vertical bar disposed in parallel, and the displacement monitoring component is set to institute
It states on the first vertical bar and second vertical bar, and vertical with first vertical bar and the second vertical bar；First vertical bar is far from institute
The one end for stating displacement monitoring component is arranged in the through hole, and first vertical bar and the first level bar generate vertical side
Relative displacement in upward relative displacement and first level direction, second vertical bar far from the displacement monitoring component one
End is mounted in the mounting groove.
6. the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure according to claim 5, which is characterized in that institute
Stating connecting shaft includes metallic rod, metal sleeve and the metal batten being arranged on the metal sleeve outer wall；
The direction vertical with its extending direction is provided with the peace matched with the installation axle at the first end of the metallic rod
Hole is filled, so that the installation axle is mounted in the mounting hole；
In the metallic rod along the direction vertical with its extending direction be provided with the second pin hole for installing the second spacer pin and
For installing the third pin hole of third spacer pin；
The second end of the metallic rod passes through the metal sleeve, and is limited by second spacer pin and the third spacer pin
The position of the fixed metal sleeve；
The plane of the metal batten is parallel with the axis of the metal sleeve, and the metal batten is set to the sensor
On the lower surface of mounting plate.
7. the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure according to claim 6, which is characterized in that institute
The edge for stating sensor mounting plate is arranged at intervals with two for installing the screw hole of bolt, and is installed on two screw holes
In bolt corresponded respectively with two trapezoidal keys, and the contact of incline plane of the bottom end of the bolt and the trapezoidal key.
8. the method for the Three-direction deformation of Deformation Monitoring seam two sides main structure according to claim 7, which is characterized in that become
Shape is stitched two sides main structure and is become in first level direction, second horizontal direction vertical with first level direction and vertical displacement
The calculation formula of change are as follows:
Wherein, horizontal space of the L between first level bar and the cross-section center of the second horizon bar,For connecting shaft axle center with
The horizontal distance of the contact point of the trapezoidal key of bolt-, Ψ are trapezoidal key inclined-plane angle with horizontal plane, and a is deformation joint two sides main body knot
The sliding deformation amount of structure vertically, b are sliding deformation amount of the deformation joint two sides main structure on first level direction, and c is
Spacing variable quantity of the deformation joint two sides main structure in the second horizontal direction, α are double-shaft tilt angle sensor along first level side
To the angle variable quantity of rotation, β is along the second horizontal direction rotational angle variable quantity, and d is that displacement monitoring component elongates or shortens
Variable quantity.
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| CN108020199B (en) * | 2017-12-12 | 2020-08-14 | 湖南城市学院 | Crack deformation monitor |
| CN108050985B (en) * | 2017-12-12 | 2020-07-14 | 湖南城市学院 | Use method of crack deformation monitor |
| CN108050984B (en) * | 2017-12-12 | 2020-07-14 | 湖南城市学院 | Use method of monitor with crack bending deformation measurement function |
| CN111220110B (en) * | 2019-11-01 | 2021-11-12 | 浙江运达风电股份有限公司 | Tower top low-frequency vibration horizontal displacement monitoring method |
| CN113124826B (en) * | 2021-04-13 | 2023-03-10 | 中铁十四局集团有限公司 | Method for monitoring sedimentation |
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| CN102720173B (en) * | 2011-03-29 | 2014-10-01 | 中国科学院地质与地球物理研究所 | Engineering geology crack measuring method and measuring device thereof |
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