CN110790140B - Method for measuring perpendicularity of tower crane attached to seismic isolation structure - Google Patents
Method for measuring perpendicularity of tower crane attached to seismic isolation structure Download PDFInfo
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- CN110790140B CN110790140B CN201910920746.7A CN201910920746A CN110790140B CN 110790140 B CN110790140 B CN 110790140B CN 201910920746 A CN201910920746 A CN 201910920746A CN 110790140 B CN110790140 B CN 110790140B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/46—Position indicators for suspended loads or for crane elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention relates to the technical field of perpendicularity measurement, and discloses a perpendicularity measurement method for a tower crane attached to a seismic isolation structure, which comprises the following steps: s1, after the tower crane is attached to a shock insulation structure, setting a reference point at a measuring point, setting a rear view point near the reference point, adhering a reflector plate to the tower body, and recording initial coordinates for the later positioning measurement of the total station; s2, recording coordinates at the reference point through the total station erection, and re-measuring whether the reference point is accurate by using a prism to stand at a rear viewpoint; s3, measuring a tower body reflector through a total station instrument and feeding back coordinate information; and S4, through regular analysis of the coordinates of the tower body, if the coordinates are not within the allowable deviation range, the tower body of the tower crane can be judged to be inclined, and effective measures are taken to avoid similar phenomena. According to the method for measuring the perpendicularity of the tower crane attached to the seismic isolation structure, the total station and the coordinate control of the tower body reflection point are utilized, accurate measurement can be performed, the method is more accurate than the traditional method which adopts a theodolite, and the measurement result and the basis are more sufficient.
Description
Technical Field
The invention relates to the technical field of perpendicularity measurement, in particular to a method for measuring the perpendicularity of a tower crane attached to a seismic isolation structure.
Background
Perpendicularity measurement is used for indicating that a measured element on a part keeps a correct 90-degree included angle relative to a reference element, namely the degree of orthogonality between two elements is generally called, perpendicularity refers to position tolerance, and perpendicularity tolerance is as follows: the maximum allowable variation amount between the ideal directions perpendicular to the reference of the actual direction of the measured element, namely the maximum allowable variation range of the measured element deviating from the perpendicular direction, is limited by the maximum allowable variation amount on the pattern.
The existing verticality measurement is generally carried out by utilizing a theodolite vertical dial for measuring the verticality, namely, an instrument frame is leveled on the same vertical plane, a telescope is rotated to a vertical side to be detected by a building, a cross wire vertical wire is aligned to the vertical side, a horizontal dial is fixed, then the telescope is rotated up and down to see whether the cross wire is coincided with the vertical side or not, but the error in the measurement process is larger, the measurement precision is reduced, and therefore a method for measuring the verticality of a shock insulation structure attached to a tower crane is provided.
Disclosure of Invention
The invention provides a method for measuring the perpendicularity of a tower crane attached to a seismic isolation structure, which has the advantages of more accurate measurement and more sufficient measurement result basis compared with the traditional method adopting a theodolite and solves the problems in the background art.
In order to achieve the above purpose, the invention provides the following technical scheme to realize: a method for measuring the perpendicularity of a tower crane attached to a seismic isolation structure comprises the following steps:
s1, after the tower crane is attached to a shock insulation structure, starting detection, setting a reference point at a measuring point, setting a rear view point near the reference point for preventing the reference point from deviating, sticking a reflector plate at the tower body part, and recording initial coordinates for later positioning and measurement of the total station;
s2, recording coordinates at the reference point through the total station erection, and re-measuring whether the reference point is accurate by using a prism to stand at a rear viewpoint;
s3, measuring the tower body reflector plate through the total station, feeding back coordinate information and recording;
and S4, through regular analysis of the coordinates of the tower body, if the coordinates are not within the allowable deviation range, the tower body of the tower crane can be judged to be inclined, the sliding influence on the vibration isolation support is caused, and effective measures are taken to avoid similar phenomena.
Optionally, in S3, the reflective sheet is made of a plastic reflective material, and is fixed to the tower body by gluing; the method comprises the following steps of gluing and fixing the reflecting sheet material and the tower body: respectively sticking two reflection sheets on a tower body, sticking a first reflection sheet close to the right-angled edge of the tower body, sticking a second reflection sheet at the same position but 5M higher than the first reflection sheet, measuring a first reflection point a by a total station to record an initial coordinate value (X1, Y1, Z1), measuring a second reflection point b to record an initial coordinate value (X2, Y2, Z2), regularly measuring the coordinates of the two reflection points of the point a and the point b to be (X1-2, Y1-2, Z1-2), (X2-2, Y2-2 and Z2-2) and comparing the coordinates with the initial coordinates, if the horizontal deviation and the vertical deviation are within an error range, indicating that the tower crane adhesion does not influence a vibration isolation support, and if the horizontal deviation M = X2-2-X1-2, L = Y2-2-Y1-2, the positive and negative results are obtained through calculation, the horizontal deviation direction of the shock insulation support can be judged, the effect of the attachment of the tower crane on the shock insulation support is shown within the sliding distance range of the shock insulation support, the shock insulation support slides, measures are taken in time, the effective sliding distance range of the shock insulation support is-550 mm, and the shock insulation support is not allowed to slide in the construction process according to relevant regulations.
Optionally, the size of the tower crane reflector plate is 6cm by 6cm, the material composition is made of 3M materials, the surface is screen-printed, smoothness of the tower crane reflector plate is guaranteed, requirements can be met, and the reflector plate and the tower crane joint are fixed by using an adhesive material.
Optionally, the crane is attached to the position of the column, the tower crane attachment rod is clamped by the double-sided hoop steel plate in the attachment position, the attachment rod is welded with the hoop steel plate to form a whole, meanwhile, in order to prevent the hoop steel plate from falling and twisting due to the influence of gravity, 200 × 10mm steel plates are embedded in the corresponding position of a floor slab, and vertical 50 × 8mm square steel pipes are welded between the floor slab embedded steel plates and the tower crane hoop steel plate.
The invention provides a method for measuring the perpendicularity of a tower crane attached to a seismic isolation structure, which has the following beneficial effects:
according to the method for measuring the perpendicularity of the tower crane attached to the seismic isolation structure, the total station and the coordinate control of the tower body reflection point are utilized, accurate measurement can be performed, the method is more accurate than the traditional method which adopts a theodolite, and the measurement result and the basis are more sufficient.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for measuring the perpendicularity of a tower crane attached to a seismic isolation structure comprises the following steps:
s1, after a tower crane is attached to a seismic isolation structure, construction of the seismic isolation structure cannot be met due to the free height of the installation of the tower crane, after the tower crane is lifted, the structure above a seismic isolation support needs to be attached to the structure above the seismic isolation support, the seismic isolation support is arranged at the top of a B2 layer of an underground structure and is provided with the seismic isolation support, the seismic isolation support is a main body structure above the seismic isolation support, 8 tower cranes are arranged in a main engineering area, after the tower crane is attached, under the action of hoisting load, high-altitude wind load and the like, in order to detect whether the sliding influence is generated on the seismic isolation structure due to the attachment of the tower crane or not, the verticality deviation of the tower crane is measured, the coordinate control of a total station and a tower body reflection point is utilized, accurate measurement can be realized, the detection is started, a reference point is firstly arranged;
s2, recording coordinates at the reference point through the total station erection, and re-measuring whether the reference point is accurate by using a prism to stand at a rear viewpoint;
s3, measuring the tower body reflector plate through the total station, feeding back coordinate information and recording;
and S4, through regular analysis of the coordinates of the tower body, if the coordinates are not within the allowable deviation range, the tower body of the tower crane can be judged to be inclined, the sliding influence on the vibration isolation support is caused, and effective measures are taken to avoid similar phenomena.
In S3, the reflective sheet is made of a plastic reflective material and is fixed to the tower body by gluing; the method comprises the following steps of gluing and fixing the reflecting sheet material and the tower body: respectively sticking two reflection sheets on a tower body, sticking a first reflection sheet close to the right-angled edge of the tower body, sticking a second reflection sheet at the same position but 5M higher than the first reflection sheet, measuring a first reflection point a by a total station to record an initial coordinate value (X1, Y1, Z1), measuring a second reflection point b to record an initial coordinate value (X2, Y2, Z2), regularly measuring the coordinates of the two reflection points of the point a and the point b to be (X1-2, Y1-2, Z1-2), (X2-2, Y2-2 and Z2-2) and comparing the coordinates with the initial coordinates, if the horizontal deviation and the vertical deviation are within an error range, indicating that the tower crane adhesion does not influence a vibration isolation support, and if the horizontal deviation M = X2-2-X1-2, L = Y2-2-Y1-2, the positive and negative results are obtained through calculation, the horizontal deviation direction of the shock insulation support can be judged, the effect of the attachment of the tower crane on the shock insulation support is shown within the sliding distance range of the shock insulation support, the shock insulation support slides, measures are taken in time, the effective sliding distance range of the shock insulation support is-550 mm, and the shock insulation support is not allowed to slide in the construction process according to relevant regulations.
The size of the tower crane reflector plate is 6cm x 6cm, the material composition is made of 3M materials, the surface is screen-printed, smoothness of the tower crane reflector plate is guaranteed, requirements can be met, and the reflector plate and the tower crane joint are fixed by adopting an adhesive material.
Wherein, hang and attach to the cylinder position, attach the position way and adopt two-sided staple bolt steel sheet to clip tower crane and attach to the pole, attach to pole and staple bolt steel sheet welding, form wholly, for avoiding the staple bolt steel sheet to receive the gravity influence whereabouts and twist reverse simultaneously, in the pre-buried 200 of relevant position floor position 200 x 10mm steel sheet, the vertical 50 x 8mm square steel pipe of welding (totally four places) between pre-buried steel sheet of floor and tower crane staple bolt steel sheet to prevent the staple bolt whereabouts and twist reverse, and then influence the adnexed stability of tower crane.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A method for measuring the verticality of a tower crane attached to a seismic isolation structure is characterized by comprising the following steps: the method comprises the following steps:
s1, after the tower crane is attached to a shock insulation structure, starting detection, setting a reference point at a measuring point, setting a rear view point near the reference point for preventing the reference point from deviating, sticking a reflector plate at the tower body part, and recording initial coordinates for later positioning and measurement of the total station;
s2, recording coordinates at the reference point through the total station erection, and re-measuring whether the reference point is accurate by using a prism to stand at a rear viewpoint;
s3, measuring the tower body reflector plate through the total station, feeding back coordinate information and recording;
s4, through regular analysis of the coordinates of the tower body, if the coordinates are not within the allowable deviation range, the tower body of the tower crane can be judged to be inclined, the sliding influence on the shock insulation support is caused, and effective measures are taken to avoid the occurrence of similar phenomena;
in S3, the reflecting sheet is made of plastic reflecting material and is fixed with the tower body by gluing; the method comprises the following steps of gluing and fixing the reflecting sheet material and the tower body: respectively sticking two reflection sheets on a tower body, sticking a first reflection sheet close to the right-angled edge of the tower body, sticking a second reflection sheet at the same position but 5M higher than the first reflection sheet, measuring a first reflection point a by a total station to record an initial coordinate value (X1, Y1, Z1), measuring a second reflection point b to record an initial coordinate value (X2, Y2, Z2), regularly measuring the coordinates of the two reflection points of the point a and the point b to be (X1-2, Y1-2, Z1-2), (X2-2, Y2-2 and Z2-2) and comparing the coordinates with the initial coordinates, if the horizontal deviation and the vertical deviation are within an error range, indicating that the tower crane adhesion does not influence a vibration isolation support, and if the horizontal deviation M = X2-2-X1-2, L = Y2-2-Y1-2, the positive and negative results are obtained through calculation, the horizontal deviation direction of the shock insulation support can be judged, the effect of the attachment of the tower crane on the shock insulation support is shown within the sliding distance range of the shock insulation support, the shock insulation support slides, measures are taken in time, the effective sliding distance range of the shock insulation support is-550 mm, and the shock insulation support is not allowed to slide in the construction process according to relevant regulations.
2. The method for measuring the perpendicularity of the tower crane attached to a seismic isolation structure according to claim 1 is characterized in that: the size of the tower crane reflector plate is 6cm by 6cm, the material composition is made of 3M materials, the surface is screen-printed, the smoothness of the tower crane reflector plate is ensured, the requirements can be met, and the reflector plate and a tower crane joint are fixed by adopting an adhesive material.
3. The method for measuring the perpendicularity of the tower crane attached to a seismic isolation structure according to claim 1 is characterized in that: the tower crane is attached to the position of the column, the attachment part is made by clamping the attachment rod of the tower crane by the double-sided hoop steel plate, the attachment rod is welded with the hoop steel plate to form a whole, meanwhile, in order to prevent the hoop steel plate from falling and twisting under the influence of gravity, 200 × 10mm steel plates are embedded in the corresponding position of the floor slab, and vertical 50 × 8mm square steel pipes are welded between the embedded steel plates of the floor slab and the hoop steel plate of the tower crane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920746.7A CN110790140B (en) | 2019-09-27 | 2019-09-27 | Method for measuring perpendicularity of tower crane attached to seismic isolation structure |
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| CN201910920746.7A CN110790140B (en) | 2019-09-27 | 2019-09-27 | Method for measuring perpendicularity of tower crane attached to seismic isolation structure |
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| CN110790140A CN110790140A (en) | 2020-02-14 |
| CN110790140B true CN110790140B (en) | 2021-04-30 |
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| CN104176634B (en) * | 2013-05-21 | 2016-09-21 | 上海航鼎电子科技发展有限公司 | A kind of stacker crane body perpendicularity real-time detection method and device |
| CN207335723U (en) * | 2017-10-11 | 2018-05-08 | 江苏永晋控股有限公司 | A kind of total powerstation for detecting tower crane verticality |
| CN110207661A (en) * | 2019-07-01 | 2019-09-06 | 中铁大桥局集团第二工程有限公司 | A method of installation reflector plate establishes reference line measurement tower crane verticality |
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