A method for measuring the length of the back-embedded rod connected by the grid frame and the spherical support

A spherical bearing and spherical connection technology, applied in the field of measurement, can solve the problems of high risk of aerial work, unfavorable data processing, low measurement accuracy, etc., so as to reduce the workload and construction difficulty of aerial work, improve the construction quality, and the scope of application. wide effect

Active Publication Date: 2021-04-06
BEIJING NO 3 CONSTR ENG
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for measuring the length of the post-embedded rods used to connect the grid frame and the spherical support. It is necessary to solve the problems of high risk of working at heights, low measurement accuracy, unfavorable data processing and other problems in the traditional measurement method. Technical problems with low construction efficiency

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  • A method for measuring the length of the back-embedded rod connected by the grid frame and the spherical support
  • A method for measuring the length of the back-embedded rod connected by the grid frame and the spherical support
  • A method for measuring the length of the back-embedded rod connected by the grid frame and the spherical support

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Embodiment Construction

[0027] This method of measuring the length of the rear embedded rod connected to the grid frame and the spherical support is provided with a spherical connection end 3 at the connection position between the grid frame and the rear embedded rod 1, and the rear embedded rod 1 is connected to the spherical connection end 3 and the spherical bearing 2; the length measurement method includes the following steps.

[0028] Step 1. Assembling the grid frame: use the temporary tire frame on the ground to assemble the grid frame.

[0029] Step 2, use the three-dimensional laser to scan the spherical support 2: perform three-dimensional laser scanning on the spherical support 2 that has been constructed, generate the three-dimensional point cloud data of the spherical support 2, and scan the spherical support 2 before the overall lifting of the grid, Avoid the impact on the scanning of the spherical support 2 because the grid frame is lifted into place.

[0030] Step 3: Raise the net fr...

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Abstract

A method for measuring the length of a post-embedded rod for connecting a grid frame and a spherical support includes the following steps: Step 1, assembling the grid frame: assembling the grid frame by using a temporary tire frame on the ground; Step 2, using three-dimensional laser scanning Spherical support; step 3, lift the grid as a whole to the design height position; step 4, use a 3D laser to scan the spherical connection end of the grid to generate 3D point cloud data of the spherical connection end; step 5, establish a 3D coordinate system, and Put the three-dimensional point cloud data of the spherical support and the three-dimensional point cloud data of the spherical connecting end into the coordinate system; step 6, capture the feature points of the axis of the post-insert rod; step 7, calculate the length of the post-insert rod; step 8, The processing data table of the post-insert bar is generated and processed by data processing statistics. The invention solves the technical problems of high-altitude operation risk, low measurement accuracy, unfavorable data processing and low construction efficiency in the traditional measurement method.

Description

technical field [0001] The invention relates to a measuring method, in particular to a measuring method for the length of a rear embedded rod connected with a net frame and a spherical support. Background technique [0002] The construction of the back-embedded rods is an important process in the final structure closing of the overall lifting construction of the grid structure. It is interspersed in the process of lifting into place and unloading. The rear-embedded rods are one-span rods connected with spherical supports on three sides of the grid structure. ;This rod is not installed by welding during the ground assembly process. After the overall grid is lifted in place, it is installed at high altitude, so that the grid and the spherical support are connected as a whole. Due to the impact of the overall lifting deformation of the grid frame, pre-arching, installation errors, etc., the rear embedded rods have deviations from the theoretically calculated length. The traditi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02
CPCG01B11/02
Inventor 齐翰王南周建忠巩建胡高永
Owner BEIJING NO 3 CONSTR ENG
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