Structure test detection method based on three-dimensional laser scanning technology

A three-dimensional laser and structural testing technology, applied in the testing of machine/structural components, optical instrument testing, measuring devices, etc., can solve the problems of insufficient observation accuracy and lack of observation, and achieve the effect of avoiding error accumulation and improving density.

Pending Publication Date: 2020-04-03
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

The measurement points of structural displacement obtained by this observation method are a small number, and the observation accuracy of cracking and damage of the structure is insufficient, especially for the measurement of irregular deformation of the structure.

Method used

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  • Structure test detection method based on three-dimensional laser scanning technology

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Embodiment

[0029] as attached figure 1 Shown, be a kind of structure test detection method based on three-dimensional laser scanning technology of the present invention, it comprises the following contents and steps:

[0030] a. Test object 1 is a reinforced concrete beam. Paint all the surface of test object 1 white with lime, and then draw black straight lines 2 and 2 on the surface of test object 1 with a pencil, which are perpendicular to each other and have equal spacing. The surface of the test object 1 is clearly divided into different square grid-like areas, and the size of the grid-like area can be determined according to the degree of detail of the observation. In this embodiment, the side length of the square grid-like area is 10 cm, which is convenient Observing and pinpointing developmental patterns of displacement, deformation, cracking and failure in different regions of the structure;

[0031] b. During the test, the test object 1 is placed at a certain distance above th...

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Abstract

The invention discloses a structure test detection method based on a three-dimensional laser scanning technology. The structure test detection method comprises the specific steps of placing a test object, selecting and arranging the position and the number of three-dimensional laser scanner observation stations, setting the position and the number of three-dimensional laser scanning target balls,detecting the test object and processing a detection result. The three-dimensional laser scanning technology is applied to the structure test, and the whole process of the structure test is detected and monitored. According to the structure test detection method based on the three-dimensional laser scanning technology, the full-displacement field of the structure can be tested, the full-deformation field of the structure is obtained, and the cracking, failure and damage modes of the structure can be fed back in all directions and in the whole process. According to the structure test detectionmethod provided by the invention, scientific research personnel can be helped to comprehensively master various changes of the structure in the test process, and the accuracy of understanding, analyzing and mastering the mechanical property of the structure can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of civil engineering structure tests, and in particular relates to a detection method for mechanical tests of structures. Background technique [0002] Structural mechanics test is an important method and means for researchers to understand the mechanical characteristics of structures, conduct mechanical analysis on structures, judge whether the design of structures is reasonable, and optimize structures. [0003] The traditional structural test method mainly uses displacement gauges to measure the displacement of the structure under load, and to understand the cracking, deformation and failure modes of the structure under load through visual inspection. The measurement points of structural displacement obtained by this observation method are a small number, and the observation accuracy for cracking and damage of the structure is insufficient, especially for the measurement of irregular deformation of the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/08G01B11/02G01B11/16
CPCG01B11/02G01B11/16G01M11/081
Inventor 薛东焱陆培黄杨成
Owner JIANGSU UNIV OF SCI & TECH
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