Circular column verticality detecting method

A detection method and verticality technology, which is applied in the field of verticality detection of circular columns, can solve problems such as endangering bridge safety, verticality exceeding the limit, and small offset distance, so as to avoid the danger of high-altitude operations, save time and cost, and save the effect of time

Active Publication Date: 2019-03-01
CHINA FIRST METALLURGICAL GROUP
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Problems solved by technology

[0002] Verticality detection is required after the construction of bridge columns or in the later stage of bridge structure inspection and monitoring. However, how to determine the deflection of the column for circular columns is a time-consuming and laborious process. The determination of the deviation direction directly affects the accuracy of the measurement results. Due to the traditional measurement The method cannot accurately determine the deviation direction, and the easily measured deviation distance is smaller than the real one, which is easy to cover up the problem of verticality exceeding the limit; verticality exceeding the limit will seriously affect the stress state of the column, from axial compression to eccentric compression It even develops into large eccentric compression, which will seriously endanger the safety of the bridge

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  • Circular column verticality detecting method

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[0022] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0023] 1) On-site survey, according to the position of the column 1, determine the appropriate erection distance and orientation of the total station 2, avoid the obstruction of other structures, and avoid backlight measurement. The appropriate erection distance generally refers to within 50m.

[0024] 2) Determine the coordinates of the erection point and the backsight point of the total station 2. There are two types of establishment of the coordinates; a. Use relative coordinates: establish a relative coordinate system by yourself, and the coordinates of the station can be set to (0,0). The coordinates of the measuring point can be measured by the total station, establish a relative coordinate system, and determine the coordinates of the total station and the coordinates of the backsight point. b. Absolute coordinates are used: after the...

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Abstract

The invention relates to a circular column verticality detecting method. The method uses a total station to measure three points of two interfaces on a bridge column, calculates center coordinates ofthe interface from three points, and compares the left sides of centers of two sections to obtain the maximum offset and perpendicularity of the circular column; the method effectively solves the complicated operation in the process of detecting the verticality of the circular column and does not need to work at heights, can accurately measure the verticality and the deviation direction of the circular column, saves human resources, improves the accuracy of the date, and has the advantages of simple principle, convenient and fast operation, accurate and accurate data, strong practicality and wide applicability.

Description

technical field [0001] The invention belongs to the field of bridge construction, and specifically refers to a method for detecting the verticality of a circular column. Background technique [0002] Verticality detection is required after the construction of bridge columns or in the later stage of bridge structure inspection and monitoring. However, how to determine the deflection of the column for circular columns is a time-consuming and laborious process. The determination of the deviation direction directly affects the accuracy of the measurement results. Due to the traditional measurement The method cannot accurately determine the deviation direction, and the easily measured deviation distance is smaller than the real one, which is easy to cover up the problem of verticality exceeding the limit; verticality exceeding the limit will seriously affect the stress state of the column, from axial compression to eccentric compression It even develops into large eccentric compr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/00G01C15/12
CPCG01C15/00G01C15/12
Inventor 李明明陈志达杨建新王庆钢鹿存良
Owner CHINA FIRST METALLURGICAL GROUP
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