Stand column perpendicularity measuring method

A measurement method and verticality technology, which is applied in the direction of measuring devices, measuring fixed angles, instruments, etc., can solve the problems of complicated and inconvenient measurement, and achieve the effect of simple measurement process, good practicability and fast measurement speed

Inactive Publication Date: 2020-05-19
CHINA MCC17 GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, when using a total station for measurement, it is necessary to observe in two directions perpendicular to each other on the column, and use a small steel ruler to measure the inclination of the column, which is complicated and inconvenient

Method used

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] see Figure 1-2 , a method for measuring verticality of a column in the present invention only needs a total station 1 with a prism-free ranging function. When using the total station 1 to measure the absolute offset of the column 2, an orientation tool When measuring the center pole and more than two control points, the total station 1 should not be too far away from the column 2 to avoid being unable to distinguish the side of the column 2. The positi...

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Abstract

The invention discloses a stand column perpendicularity measuring method and adopts a prism-free distance measurement total station for measurement. The method comprises steps of preparing more than two control points with known three-dimensional coordinates and a centering rod in advance, erecting the total station at one control point, and leveling, centering and orientating the total station; determining an upper section and a lower section on a stand column, measuring azimuth angles on left and right sides of the upper section by using the total station, taking an average value of the twoazimuth angles as a central azimuth angle of the upper section, measuring a horizontal distance from the total station to a surface of the central azimuth angle of the upper section without a prism, and calculating central three-dimensional coordinates of the upper section according to the horizontal distance, a radius of the stand column and a vertical angle from the total station to the surfaceof the central azimuth angle of the upper section; measuring and calculating the lower section according to the same method to obtain the central three-dimensional coordinates of the lower section; and calculating an inclination angle and an inclination azimuth angle of the stand column by utilizing the central three-dimensional coordinates obtained by calculating the upper section and the lower section, and finally obtaining perpendicularity of the stand column.

Description

technical field [0001] The invention belongs to the technical application of construction engineering, and relates to a method for measuring the verticality of a road bridge column. Background technique [0002] The bridge is the column is the support system of the bridge, which transfers all the loads of the superstructure to the foundation of the bridge. Columns should be vertical, otherwise lateral stress will be generated on the foundation, causing displacement of the foundation and affecting the service life of the bridge. The bridge construction specification stipulates the verticality of the columns, and the verticality of the columns needs to be tested during the bridge acceptance. The traditional method uses a ruler, a vertical ball, etc., but now theodolite and total station can be used. At present, when using a total station for measurement, it is necessary to observe in two directions perpendicular to each other of the column, and the inclination of the column ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/12G01B21/22
CPCG01B21/22G01C15/12
Inventor 陈曙霞吕雨干明
Owner CHINA MCC17 GRP
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