CN107238379B - Measuring for verticality method - Google Patents
Measuring for verticality method Download PDFInfo
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- CN107238379B CN107238379B CN201710609419.0A CN201710609419A CN107238379B CN 107238379 B CN107238379 B CN 107238379B CN 201710609419 A CN201710609419 A CN 201710609419A CN 107238379 B CN107238379 B CN 107238379B
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- pedestal
- verticality
- measuring
- prefabricated components
- joint bar
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- 238000000034 method Methods 0.000 title claims abstract description 54
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 79
- 238000002627 tracheal intubation Methods 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 23
- 238000005259 measurement Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 10
- 210000003205 muscle Anatomy 0.000 description 3
- 241000826860 Trapezium Species 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/12—Instruments for setting out fixed angles, e.g. right angles
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention relates to building fields, in particular to measuring for verticality method.The present invention provides a kind of measuring for verticality methods, joint bar verticality in prefabricated components is detected by joint bar testing apparatus for verticality, this method by field measurement and through Simple Calculation obtain joint bar perpendicularity deviation as a result, providing for the installability in prefabricated concrete structure construction process according to increase the accuracy of construction in later period.The present invention also provides a kind of measuring for verticality methods, prefabricated components middle sleeve verticality is detected by sleeve testing apparatus for verticality, this method by field measurement and through Simple Calculation obtain sleeve perpendicularity deviation as a result, providing for the installability in prefabricated concrete structure construction process according to increase the accuracy of construction in later period.
Description
Technical field
The present invention relates to building fields, in particular to measuring for verticality method.
Background technique
In assembled architecture, due to grout sleeve interconnection technique maturation, reliable performance, easy for construction, receive more next
More applications.To ensure that each reserved joint bar can accurately protrude into corresponding sleeve during the lifting construction of component
Assembly could be completed, even if all more than the deviation of allowable error range occurs in the verticality of a reserved joint bar or sleeve
Cause entire component that can not assemble, seriously affects construction speed.Therefore, the verticality of reserved joint bar and sleeve is in prefabricated components
An important factor for influencing connection.
Existing national standards " concrete structure engineering construction quality accident specification " (GB50204-2015) and professional standard
The inspection of the reserved joint bar on prefabricated components is used in " reinforced bar sleeve grouting connection application technology regulation " (JGJ355-2015)
It observes, the method that the method for dipstick metering uses dipstick metering to the inspection of embedded sleeve barrel.It is well known that being needed first in squareness measurement
Determine a reference vehicular face, the vertical range difference at measurand both ends to the datum level is perpendicularity deviation.And existing
Have it is actually detected during, testing staff mostly with range estimation based on, to range estimation there may be the component of query auxiliary use dipstick metering
Mode.The mode of observation and dipstick metering is difficult to determine reference vehicular face, and the precise measurement to joint bar and sleeve verticality is even more hardly possible
Upper plus hardly possible, existing measurement method more rely on the technical level and engineering experience of testing staff itself, and different testing staff are to same
Even there is the conclusion completely contradicted in the judgement of one root cutting muscle or sleeve verticality.Therefore, it is necessary to one kind to detect verticality
Method and develop corresponding device.
Summary of the invention
The object of the present invention is to provide a kind of measuring for verticality methods, are detected by joint bar testing apparatus for verticality
Joint bar verticality in prefabricated components, this method by field measurement and through Simple Calculation obtain joint bar perpendicularity deviation as a result,
It provides for the installability in prefabricated concrete structure construction process according to the accuracy to increase construction in later period.
Second object of the present invention is, provides a kind of measuring for verticality method, by field measurement and through simple
Be calculated sleeve perpendicularity deviation as a result, for the installability in prefabricated concrete structure construction process provide according to
According to the accuracy to increase construction in later period.
The embodiment of the present invention is achieved in that
A kind of measuring for verticality method comprising following steps:
Step a: the casing of joint bar testing apparatus for verticality is set on the joint bar connecting with prefabricated components, and joint bar is made to hang down
Pedestal in straightness detecting device is abutted far from the one side of casing with prefabricated components；
Step b: in the gap of clearance gauge inserted base and prefabricated components, will obtain clearance distance is x；
Step c: a length of a of pedestal edge passes through formulaAcquire angle of inclination beta.
This method by above-mentioned formula, calculate obtain according to actual needs perpendicularity deviation as a result, increasing construction
Accuracy.
In a kind of embodiment of the invention:
Measuring for verticality method further includes step d, step d: joint bar horizontal direction offset distance is Δ, joint bar vertical direction
Length is L, passes through formulaAcquire perpendicularity deviation.
In a kind of embodiment of the invention:
Joint bar testing apparatus for verticality includes pedestal and casing；Through-hole is offered on pedestal, casing passes through through-hole and bottom
Seat connection, one side of the casing extending direction with pedestal far from casing are vertical.
In a kind of embodiment of the invention:
Internal screw thread is offered on through-hole wall；Casing has the thread segment of close pedestal and the active section far from pedestal；Spiral shell
External screw thread is offered on line section outer peripheral surface；Casing is connected through a screw thread with pedestal.
In a kind of embodiment of the invention:
Pedestal is rectangle in the section of the vertical direction of casing extending direction.
A kind of measuring for verticality method comprising following steps:
Step a: by the sleeve on the intubation insertion prefabricated components of sleeve testing apparatus for verticality, examine sleeve verticality
The pedestal surveyed in device is abutted close to the one side of intubation with prefabricated components；
Step b: in the gap of clearance gauge inserted base and prefabricated components, will obtain clearance distance is x '；
Step c: a length of α ' of pedestal edge passes through formulaAcquire angle of inclination beta '.
This method by above-mentioned formula, calculate obtain according to actual needs perpendicularity deviation as a result, for assembled coagulation
Installability in soil structure construction process is provided according to the accuracy to increase construction in later period.
In a kind of embodiment of the invention:
Measuring for verticality method further includes step d, step d: sleeve horizontal direction offset distance be Δ ', sleeve Vertical Square
It is L ' to depth, passes through formulaAcquire perpendicularity deviation.
In a kind of embodiment of the invention:
Sleeve testing apparatus for verticality includes pedestal and intubation；Through-hole is offered on pedestal, intubation passes through through-hole and pedestal
Connection, intubation extending direction are vertical close to the one side of intubation with pedestal.
In a kind of embodiment of the invention:
Internal screw thread is offered on through-hole wall；Intubation has the thread segment of close pedestal and the active section far from pedestal；Spiral shell
External screw thread is offered on line section outer peripheral surface；Intubation is connected through a screw thread with pedestal.
In a kind of embodiment of the invention:
The length of thread segment is less than the depth of through-hole.
Technical solution of the present invention at least have it is following the utility model has the advantages that
The present invention provides a kind of measuring for verticality methods, are detected in prefabricated components and are inserted by joint bar testing apparatus for verticality
Muscle verticality, this method by field measurement and through Simple Calculation obtain joint bar perpendicularity deviation as a result, for assembled coagulation
Installability in soil structure construction process is provided according to the accuracy to increase construction in later period.
The present invention also provides a kind of measuring for verticality methods, and it is vertical to obtain sleeve by field measurement and through Simple Calculation
Degree deviation as a result, providing for the installability in prefabricated concrete structure construction process according to increase the later period
The accuracy of construction.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the use state diagram of joint bar testing apparatus for verticality in the embodiment of the present invention 1；
Fig. 2 is Fig. 1 rough schematic view；
Fig. 3 is the use state diagram of 2 middle sleeve testing apparatus for verticality of the embodiment of the present invention；
Fig. 4 is Fig. 3 rough schematic view.
In figure: 110- prefabricated components；120- joint bar；130- clearance gauge；140- sleeve；200- joint bar testing apparatus for verticality；
210- pedestal；220- casing；300- sleeve testing apparatus for verticality；310- pedestal；320- intubation.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of embodiment of the present invention, it should be noted that the orientation of the instructions such as term "inner", "outside", "upper"
Or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put
Or positional relationship, it is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the existing detection process to prefabricated components joint bar and sleeve verticality, testing staff mostly with range estimation based on,
To range estimation, there may be the component of query auxiliary by the way of dipstick metering.The mode of range estimation and dipstick metering is difficult to determine reference vehicular
Face, even more extremely difficult to the precise measurement of joint bar and sleeve verticality, existing measurement method more relies on testing staff itself
Technical level and engineering experience, even there is completely phase to the judgement of same root joint bar or sleeve verticality in different testing staff
Anti- conclusion.Therefore, it is necessary to a kind of methods to detect verticality.
According to the deficiencies in the prior art, following specific embodiments are provided:
Embodiment 1
It include prefabricated components 110, joint bar 120, clearance gauge 130 and joint bar testing apparatus for verticality 200 with reference to Fig. 1, Fig. 1.It inserts
Muscle testing apparatus for verticality 200 includes pedestal 210 and casing 220.Offer through-hole on pedestal 210, casing 220 by through-hole with
Pedestal 210 connects.One side of 220 extending direction of casing with pedestal 210 far from casing 220 is vertical.It also opens on the inner walls of the via
Equipped with internal screw thread.Casing 220 has the thread segment of close pedestal 210 and the active section far from pedestal 210, in thread segment outer peripheral surface
On offer external screw thread, casing 220 is connected through a screw thread with pedestal 210.Pedestal 210 casing 220 extending direction it is vertical
Direction section is rectangle.In the present embodiment, section is square, and in other specific embodiments, can also be rectangle.
In a kind of measuring for verticality method of the present embodiment, step a is connect for joint bar 120 with prefabricated components 110, and
One end stretches out in prefabricated components 110.Casing 220 in joint bar testing apparatus for verticality 200 is by joint bar 120 far from prefabricated components
110 one end is set on joint bar 120, and is controlled one side of the pedestal 210 far from casing 220 and abutted with 110 surface of prefabricated components.
Due to out of plumb between joint bar 120 and prefabricated components 110,200 middle sleeve 220 of joint bar testing apparatus for verticality and pedestal 210 hang down
Directly, therefore after casing 220 is sheathed on joint bar 120 and pedestal 210 is abutted with 110 surface of prefabricated components, pedestal 210 and prefabricated structure
Part can have gap on 110 surface.Carry out step b: the gap between 130 inserted base 210 of clearance gauge and prefabricated components 110
In.
Further, in order to be inserted into clearance gauge 130 smoothly in gap, in the present embodiment, clearance gauge 130 has right-angled trapezium
Outer profile, in addition, in order to using clearance gauge 130 intuitively read the distance between pedestal 210 and prefabricated components 110, in clearance gauge
It is additionally provided with scale on 130 inclined-planes, the scale is for showing the distance between prefabricated components 110 and pedestal 210.Due to prefabricated components
The case where there may be out-of-flatnesses on 110 surfaces, therefore repeatedly measurement according to the actual situation, take the maximum value in gap.It needs to illustrate
It is that in other specific embodiments, according to actual use situation, clearance gauge 130 can be other forms, as engineering is commonly each
The clearance gauge 130 of kind shape.
With reference to Fig. 2, in use, 120 verticality measurement device of joint bar is set on joint bar 120, and by clearance gauge
130 inserted bases 210 obtain maximum clearance distance x with the gap of prefabricated components 110.Due to joint bar testing apparatus for verticality
200 pedestal 210 is square, and square section side length fixes, thus the clearance distance x of pedestal 210 and prefabricated components 110 with just
The ratio of square-section side length a is the sine value that joint bar 120 deviates the angle of 110 vertical line of prefabricated components.
In step c, the angle that joint bar 120 deviates 110 vertical line of prefabricated components is the gap of pedestal 210 and prefabricated components 110
The arcsin function of the ratio of distance x and square section side length a.Pass through formulaObtain angle of inclination beta.
Further, in engineering in use, usually vertical with joint bar 120 using 120 horizontal direction offset distance Δ of joint bar
The ratio of direction length L indicates perpendicularity deviation, i.e., above-mentioned joint bar 120 is deviateed to the angle of 110 vertical line of prefabricated components by step e
Degree β, which takes tangent value to obtain 120 horizontal direction offset distance Δ of joint bar and 120 vertical-direction length L of joint bar, indicates perpendicularity deviation.
Pass through formulaAcquire perpendicularity deviation.
A kind of measuring for verticality method provided in this embodiment, comprising:
Step a: the casing 220 of joint bar testing apparatus for verticality 200 is set in the joint bar connecting with prefabricated components 110
On 120, abut one side of the pedestal 210 far from casing 220 in joint bar testing apparatus for verticality 200 with prefabricated components 110.
Step b: by 130 inserted base 210 of clearance gauge with the gap of prefabricated components 110, obtaining clearance distance is x.
Step c: 210 side length of pedestal is α, passes through formulaAcquire angle of inclination beta.
And carry out step d according to actual needs: 120 horizontal direction offset distance of joint bar is Δ, and 120 vertical direction of joint bar is long
Degree is L, passes through formulaAcquire perpendicularity deviation.
This method measures 120 verticality of joint bar using joint bar testing apparatus for verticality 200, and by field measurement and through letter
Easily be calculated 120 perpendicularity deviation of joint bar as a result, for the installability in prefabricated concrete structure construction process
It provides according to the accuracy to increase construction in later period.
Embodiment 2
It include prefabricated components 110, sleeve 140, clearance gauge 130 and sleeve testing apparatus for verticality 300 with reference to Fig. 3, Fig. 3.Set
Cylinder testing apparatus for verticality 300 includes pedestal 310 and intubation 320.Offer through-hole on pedestal 310, intubation 320 by through-hole with
Pedestal 310 connects.It is vertical close to the one side of intubation 320 with pedestal 310 to be intubated 320 extending directions.It also opens on the inner walls of the via
Equipped with internal screw thread.Intubation 320 has the thread segment of close pedestal 310 and the active section far from pedestal 310, in thread segment outer peripheral surface
On offer external screw thread, intubation 320 is connected through a screw thread with pedestal 310.Pedestal 310 is being intubated the vertical of 320 extending direction
Direction section is rectangle, and section is square in this embodiment, in other specific embodiments, can also be rectangle.
Other than thread segment stretches out 310 contact surface of pedestal and will affect measurement accuracy, intubation 320 is with 310 contact surface of pedestal
No holding vertically also influences Surveying Actual Precision, and active section pipe thickness is 2mm-5mm, in the present embodiment, active section pipe
Wall is 2.5mm, in order to intubation 320 with pedestal 310 cooperate after, can intuitively check intubation 320 whether vertically with pedestal 310
Cooperation makes thread segment pipe thickness be less than active section pipe thickness, generally taken between 0.5mm-1mm in the present embodiment
0.7mm。
Intubation in a kind of measuring for verticality method of the present embodiment, in step a middle sleeve testing apparatus for verticality 300
320 are inserted in sleeve 140 by sleeve 140 far from one end of prefabricated components 110, and control pedestal 310 close to the one of intubation 320
Face is abutted with 110 surface of prefabricated components.Due to out of plumb between sleeve 140 and prefabricated components 110, sleeve testing apparatus for verticality
Intubation 320 and pedestal 310 are vertical in 300, thus intubation 320 be inserted into sleeve 140 and pedestal 310 close to intubation 320 one side
After abutting with 110 surface of prefabricated components, pedestal 310 and prefabricated components can have gap between 110 surface.Carry out step b: plug
In gap between 130 inserted base 310 of ruler and prefabricated components 110.
Further, in order to be inserted into clearance gauge 130 smoothly in gap, in the present embodiment, clearance gauge 130 has right-angled trapezium
Outer profile, in addition, in order to using clearance gauge 130 intuitively read the distance between pedestal 310 and prefabricated components 110, in clearance gauge
It is additionally provided with scale on 130 inclined-planes, the scale is for showing the distance between prefabricated components 110 and pedestal 310.It needs to illustrate
It is that in other specific embodiments, according to actual use situation, clearance gauge 130 can be other forms, as engineering is commonly each
The clearance gauge 130 of kind shape.
With reference to Fig. 4, in use, 140 verticality measurement device of sleeve is inserted in sleeve 140, and by clearance gauge
130 inserted bases 310 obtain clearance distance with the gap of prefabricated components 110.Due to 110 surface of prefabricated components there may be
The case where out-of-flatness, therefore repeatedly measurement according to the actual situation, take the maximum value in gap.Additionally due to the bottom of testing apparatus for verticality
Seat 310 is square, and square section side length is fixed, therefore the clearance distance and square section of pedestal 310 and prefabricated components 110
The ratio of side length is the sine value that sleeve 140 deviates the angle of 110 vertical line of prefabricated components.
In step c, the angle that sleeve 140 deviates 110 vertical line of prefabricated components is the gap of pedestal 310 and prefabricated components 110
The arcsin function of the ratio of maximum distance x ' and square section side length α '.Pass through formulaInclined
Oblique angle β '.
Further, in engineering in use, usually utilizing 140 horizontal direction offset distance Δ of sleeve ' vertical with sleeve 140
The ratio of direction length L ' indicates perpendicularity deviation, i.e., above-mentioned sleeve 140 is deviateed 110 vertical line of prefabricated components by step e
Angle takes tangent value to obtain 140 horizontal direction offset distance Δ of sleeve ' inclined with 140 vertical-direction length L ' expression verticality of sleeve
Difference.Pass through formulaAcquire perpendicularity deviation.
A kind of measuring for verticality method provided in this embodiment, comprising:
Step a: the intubation 320 of sleeve testing apparatus for verticality 300 is inserted into the sleeve 140 on prefabricated components 110, is made
Pedestal 310 in sleeve testing apparatus for verticality 300 is abutted close to the one side of intubation 320 with prefabricated components 110；
Step b: by 130 inserted base 310 of clearance gauge with the gap of prefabricated components 110, obtaining clearance distance is x '；
Step c: 310 side length of pedestal is α ', passes through formulaAcquire angle of inclination beta '.
And according to actual needs carry out step d: 140 horizontal direction offset distance of sleeve be Δ ', 140 vertical direction of sleeve
Depth is L ', passes through formulaAcquire perpendicularity deviation.
This method measures 140 verticality of sleeve using sleeve testing apparatus for verticality 300, and by field measurement and through letter
Easily be calculated 140 perpendicularity deviation of sleeve as a result, for the installability in prefabricated concrete structure construction process
It provides according to the accuracy to increase construction in later period.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of measuring for verticality method, which is characterized in that use joint bar testing apparatus for verticality, the joint bar measuring for verticality
Device includes pedestal and casing；Through-hole is offered on the base, described sleeve pipe is connect by the through-hole with the pedestal,
One side of the described sleeve pipe extending direction with the pedestal far from casing is vertical；
The measuring for verticality method the following steps are included:
Step a: described sleeve pipe is set on the joint bar connecting with prefabricated components, makes the pedestal far from the one side of described sleeve pipe
It is abutted with the prefabricated components；
Step b: clearance gauge being inserted into the gap of the pedestal and the prefabricated components, and obtaining clearance distance is x；
Step c: a length of α of pedestal edge passes through formulaAcquire angle of inclination beta.
2. a kind of measuring for verticality method according to claim 1, it is characterised in that:
The measuring for verticality method further includes step d, step d: the joint bar horizontal direction offset distance is Δ, the joint bar
Vertical-direction length is L, passes through formulaAcquire perpendicularity deviation Δ.
3. a kind of measuring for verticality method according to claim 1, it is characterised in that:
Internal screw thread is offered on the through-hole wall；Described sleeve pipe has close to the thread segment of the pedestal and far from the pedestal
Active section；External screw thread is offered on the thread segment outer peripheral surface；Described sleeve pipe is connected through a screw thread with the pedestal.
4. a kind of measuring for verticality method according to claim 1, it is characterised in that:
The pedestal is rectangle in the section of the vertical direction of described sleeve pipe extending direction.
5. a kind of measuring for verticality method, which is characterized in that use sleeve testing apparatus for verticality, the sleeve measuring for verticality
Device includes pedestal and intubation；Through-hole is offered on the pedestal, the intubation is connect by the through-hole with the pedestal, institute
It is vertical to state one side of the intubation extending direction with the pedestal far from intubation；
The measuring for verticality method the following steps are included:
Step a: by it is described intubation insertion prefabricated components on sleeve in, make the pedestal close to the intubation one side with it is described
Prefabricated components abut；
Step b: clearance gauge being inserted into the gap of the pedestal and the prefabricated components, and obtaining clearance distance is x '；
Step c: a length of a ' of pedestal edge passes through formulaAcquire angle of inclination beta '.
6. a kind of measuring for verticality method according to claim 5, it is characterised in that:
The measuring for verticality method further includes step d, step d: the sleeve horizontal direction offset distance be Δ ', the set
Cylinder vertical direction depth is L ', passes through formulaAcquire perpendicularity deviation Δ '.
7. a kind of measuring for verticality method according to claim 5, it is characterised in that:
Internal screw thread is offered on the through-hole wall；The intubation has close to the thread segment of the pedestal and far from the pedestal
Active section；External screw thread is offered on the thread segment outer peripheral surface；The intubation is connected through a screw thread with the pedestal.
8. a kind of measuring for verticality method according to claim 7, it is characterised in that:
The length of the thread segment is less than the depth of the through-hole.
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| CN201710609419.0A CN107238379B (en) | 2017-07-25 | 2017-07-25 | Measuring for verticality method |
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| CN201710609419.0A CN107238379B (en) | 2017-07-25 | 2017-07-25 | Measuring for verticality method |
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| CN107238379B true CN107238379B (en) | 2019-09-17 |
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| CN109403953B (en) * | 2018-11-16 | 2022-10-14 | 中铁三局集团有限公司 | Device and method for quickly and accurately measuring perpendicularity of drilled pile body |
| CN112683141B (en) * | 2021-01-29 | 2023-03-17 | 建研院检测中心有限公司 | Method for detecting perpendicularity of sleeve and dowel bar on prefabricated part |
| CN114923461A (en) * | 2022-05-17 | 2022-08-19 | 中建八局第一建设有限公司 | Perpendicularity detection device for building construction |
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| CN205679225U (en) * | 2016-06-13 | 2016-11-09 | 中冶建筑研究总院有限公司 | Rectangular column apparatus for measuring degree of inclination |
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| CN107238379A (en) | 2017-10-10 |
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