CN110044340B - Method for measuring and controlling size of hemispherical steel structure shell - Google Patents
Method for measuring and controlling size of hemispherical steel structure shell Download PDFInfo
- Publication number
- CN110044340B CN110044340B CN201910140920.6A CN201910140920A CN110044340B CN 110044340 B CN110044340 B CN 110044340B CN 201910140920 A CN201910140920 A CN 201910140920A CN 110044340 B CN110044340 B CN 110044340B
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- shell
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Abstract
The invention discloses a method for measuring and controlling the size of a hemispherical steel structure shell, which comprises the steps of positioning the center of the shell through a measurement control net when the shell is constructed on the first layer, firstly placing a measurement platform on the middle line of the shell, projecting a central control point on the measurement platform from the bottom layer, erecting a measuring instrument on a projection point, directly measuring the distance r from each position point on a construction layer to the center of the shell through the measuring instrument, then adjusting the position point with large deviation according to design requirements, obtaining the relative height h of h0-h1 by using the height h1 of a plumb bob or a ruler and the height h0 of a known measuring instrument, then adjusting the position point with large deviation according to the design requirements, and finally completing the measurement control of the rest layers in sequence. The method is simple to operate, high in efficiency, accurate in measurement and high in assembling precision.
Description
Technical Field
The invention belongs to the field of steel structure construction, and particularly relates to a method for measuring and controlling the size of a hemispherical steel structure shell.
Background
The steel construction occasionally can meet the hemisphere steel structure casing, and this kind of casing generally divide into the polylith and carries out the layering and assemble, need control parameters such as radius, elevation, radian at any time along with the layer height in the assembly process. Because the hemispherical steel structure shell does not have a fixed measuring field, the construction diameter of the shell can be determined only by repeatedly measuring the shell edge at present, and the distance and the elevation between any point of the shell and the center cannot be accurately determined, so that the current measuring and controlling method of the hemispherical steel structure shell is complex in operation, low in efficiency and low in assembling precision.
Disclosure of Invention
The invention aims to provide a method for measuring and controlling the size of a hemispherical steel structure shell, which is simple to operate, high in efficiency, accurate in measurement and high in assembly precision.
The technical scheme adopted by the invention is as follows:
a method for measuring and controlling the size of a hemispherical steel structure shell comprises the following steps:
s1, positioning the center of the shell through the measurement control net when the shell is constructed on the first layer;
s2, after the first-layer shell is installed, firstly, the measuring platform is placed on the middle line of the shell, then, the central control point is projected onto the measuring platform from the bottom layer, and then, the measuring instrument is erected on the projection point;
s3, directly measuring the distance r from each position point at the construction layer to the center of the shell by a measuring instrument, then adjusting the position points with large deviation according to design requirements, and simultaneously, obtaining the relative height h1 by using a plumb bob or a ruler and the known height h0 of the measuring instrument, namely h0-h1, and then adjusting the position points with large deviation according to the design requirements;
and S4, repeating S2 and S3, and finishing the measurement control of the rest layers in sequence.
Further, the height h1 and the distance r from the center of the shell of each position point are collected to form a database and modeled, so that data analysis and dynamic monitoring are carried out on each position point.
Furthermore, a protective guard is arranged on the measuring platform.
The invention has the beneficial effects that:
in the former method, the diameter of the shell needs to be determined by repeatedly pulling a ruler at the edge of the shell during the measurement of the inner diameter of the shell, the edge of the shell cannot provide a fixed instrument erection site, and the safety of a measurer is difficult to guarantee; the former method can only measure the diameter of the shell and can not quickly and accurately judge the deviation of the position points, and the method can quickly and accurately measure the height h1 of each position point and the distance r from the center of the shell, so that the installation of the shell is accurately controlled, the measurement is accurate, the assembly precision is high, and the purposes of controlling the size, the radian and the elevation are achieved.
Drawings
FIG. 1 is a schematic view of radius measurements at various points on a casing formation.
FIG. 2 is a schematic elevation measurement at various points on the housing.
In the figure: 1-a measurement platform; 2-projection point; 3-a shell; 4-a measuring instrument; 5-central control point.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 and 2, a method for measuring and controlling the size of a hemispherical steel structure shell comprises the following steps: s1, positioning the center of the shell through the measurement control net when the shell 3 is constructed on the first layer; s2, after the first-layer shell 3 is installed, the measuring platform 1 is placed on the shell centerline, the central control point 5 is projected onto the measuring platform 1 from the bottom layer, and the measuring instrument 4 is erected on the projection point 2; s3, directly measuring the distance r from each position point at the construction layer to the center of the shell by the measuring instrument 4, then adjusting the position points with large deviation according to the design requirement, and simultaneously, obtaining the relative height h1 by using the height h1 of the position points measured by a plumb bob or a ruler and the known height h0 of the measuring instrument, namely h0-h1, and then adjusting the position points with large deviation according to the design requirement; and S4, repeating S2 and S3, and finishing the measurement control of the rest layers in sequence.
In the former method, the inner diameter of the shell 3 needs to be measured by repeatedly pulling a ruler at the edge of the shell 3 to determine the diameter of the shell, the edge of the shell 3 cannot provide a fixed instrument erection site, and the safety of a measurer is difficult to guarantee; the former method can only measure the diameter of the shell 3 but cannot quickly and accurately judge the deviation of the position points, and the method can quickly and accurately measure the height h1 of each position point and the distance r from the center of the shell, so that the installation of the shell 3 is accurately controlled, the measurement is accurate, the assembly precision is high, and the purposes of controlling the size, the radian and the elevation are achieved.
In the embodiment, the height h1 of each position point and the distance r from the center of the shell can be collected to form a database and be modeled, so that data analysis and dynamic monitoring can be carried out on each position point.
As shown in fig. 1 and 2, in the present embodiment, a guard rail is disposed on the measuring platform 1.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (3)
1. A method for measuring and controlling the size of a hemispherical steel structure shell is characterized by comprising the following steps: comprises the steps of (a) carrying out,
s1, positioning the center of the shell through the measurement control net when the shell is constructed on the first layer;
s2, after the first-layer shell is installed, firstly, the measuring platform is placed on the middle line of the shell, then, the central control point is projected onto the measuring platform from the bottom layer, and then, the measuring instrument is erected on the projection point;
s3, directly measuring the distance r from each position point at the construction layer to the center of the shell by a measuring instrument, then adjusting the position points with large deviation according to design requirements, and simultaneously, obtaining the relative height h1 by using a plumb bob or a ruler and the known height h0 of the measuring instrument, namely h0-h1, and then adjusting the position points with large deviation according to the design requirements;
and S4, repeating S2 and S3, and finishing the measurement control of the rest layers in sequence.
2. The method for measuring and controlling the size of the hemispherical steel structure shell according to claim 1, wherein the method comprises the following steps: the height h1 and the distance r from the center of the shell of each position point are collected to form a database and modeled, so that data analysis and dynamic monitoring are carried out on each position point.
3. The method for measuring and controlling the size of the hemispherical steel structure shell according to claim 1, wherein the method comprises the following steps: and a protective guard is arranged on the measuring platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910140920.6A CN110044340B (en) | 2019-02-26 | 2019-02-26 | Method for measuring and controlling size of hemispherical steel structure shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140920.6A CN110044340B (en) | 2019-02-26 | 2019-02-26 | Method for measuring and controlling size of hemispherical steel structure shell |
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| Publication Number | Publication Date |
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| CN110044340A CN110044340A (en) | 2019-07-23 |
| CN110044340B true CN110044340B (en) | 2021-06-29 |
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| CN201910140920.6A Active CN110044340B (en) | 2019-02-26 | 2019-02-26 | Method for measuring and controlling size of hemispherical steel structure shell |
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Citations (5)
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| US3867843A (en) * | 1969-03-25 | 1975-02-25 | Chrysler Corp | Missile altitude sensing system |
| CN205156907U (en) * | 2015-11-07 | 2016-04-13 | 常州安塔歌电子科技有限公司 | Wireless sensor is measured to translucent construction , azimuth angle sensor and base station antenna gesture |
| CN106461391A (en) * | 2014-05-05 | 2017-02-22 | 赫克斯冈技术中心 | Surveying system |
| CN106695213A (en) * | 2015-11-13 | 2017-05-24 | 中国航空工业集团公司北京航空制造工程研究所 | Tool clamp for transverse automatic welding of large spherical shell structure and assembling method |
| CN107063525A (en) * | 2017-06-25 | 2017-08-18 | 中国科学院武汉岩土力学研究所 | A kind of fiber Bragg grating type six for deep soft rock stress measurement is to pressure sensor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6195163B1 (en) * | 1996-02-05 | 2001-02-27 | Micron Technology, Inc. | Reflectance method for evaluating the surface characteristics of opaque materials |
| CN105865395A (en) * | 2016-06-17 | 2016-08-17 | 中航工业哈尔滨轴承有限公司 | Axial clearance measuring method for large-sized bearing |
| CN108592877B (en) * | 2018-04-28 | 2020-08-25 | 中国核工业华兴建设有限公司 | Variable-size dome radius detection method |
-
2019
- 2019-02-26 CN CN201910140920.6A patent/CN110044340B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3867843A (en) * | 1969-03-25 | 1975-02-25 | Chrysler Corp | Missile altitude sensing system |
| CN106461391A (en) * | 2014-05-05 | 2017-02-22 | 赫克斯冈技术中心 | Surveying system |
| CN205156907U (en) * | 2015-11-07 | 2016-04-13 | 常州安塔歌电子科技有限公司 | Wireless sensor is measured to translucent construction , azimuth angle sensor and base station antenna gesture |
| CN106695213A (en) * | 2015-11-13 | 2017-05-24 | 中国航空工业集团公司北京航空制造工程研究所 | Tool clamp for transverse automatic welding of large spherical shell structure and assembling method |
| CN107063525A (en) * | 2017-06-25 | 2017-08-18 | 中国科学院武汉岩土力学研究所 | A kind of fiber Bragg grating type six for deep soft rock stress measurement is to pressure sensor |
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| CN110044340A (en) | 2019-07-23 |
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