Complicated and variable space structure large-scale multi-branch node measuring construction method

A technology of space structure and construction method, applied in the direction of measuring devices, measuring instruments, height/horizontal measurement, etc., can solve the problems of inability to meet the precise positioning requirements of large multi-branch cast steel nodes, difficulty in controlling installation accuracy, and large dimensional deviations. Achieve the effects of shortening the construction period, high operating efficiency and improving production efficiency

Inactive Publication Date: 2018-05-08
CHINA MCC17 GRP
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Problems solved by technology

In some complex and changeable space structures, the main stress-bearing nodes adopt large multi-branch cast steel nodes, which have large dimensional deviation after casting and are difficult to control the installation accuracy
Traditional measurement methods for regular shapes can no longer meet the precise positioning requirements of large multi-branch cast steel nodes

Method used

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  • Complicated and variable space structure large-scale multi-branch node measuring construction method
  • Complicated and variable space structure large-scale multi-branch node measuring construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0019] like figure 1 and figure 2 A method for measuring and constructing large-scale multi-branch nodes in a complex and variable space structure is shown, and its specific implementation steps are as follows:

[0020] 1. Use the coordinate fitting method to detect large multi-branch nodes.

[0021] (1) By fitting the three-dimensional coordinates of the measured external dimensions of the nodes with the three-dimensional coordinates of the designed external dimensions, the node label value is obtained. The obtained data is used to establish a three-dimensional space model of nodes.

[0022] (2) Use the total station to detect the external dimensions of the node entity, and measure the coordinates of each outrigger port of the node. The relative coordinate values ​​obtained are converted into geometric figures, that is, the solid model, through the drawing software.

[0023] (3) Fitting the solid model with the design model (combination of theoretical value coordinate poi...

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Abstract

The invention provides a complicated and variable space structure large-scale multi-branch node measuring construction method, which belongs to a method of combining a coordinate fitting method for detecting large-scale multi-branch nodes and a three-dimensional coordinate decomposition method for installing the large-scale multi-branch nodes. The method has the advantages that the operation practicability is high; the operation efficiency is high; the measurement control precision is high; the instrument station setting is flexible; the detection result is practical, and the like. The important effect is achieved in aspects of improving the production efficiency, saving the cost and shortening the construction period in the construction process of building the complicated and variable space structure large-scale multi-branch nodes.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a large-scale multi-branch node measurement construction method for complex and variable space structures, which is applicable to various complex and variable space steel structure buildings. Background technique [0002] At present, domestic large-scale multi-branch nodes are widely used in buildings with complex and variable space structures, as the main force-bearing nodes of the structure. In the past, the appearance of large-scale multi-branch nodes was mostly regular geometric shape. The size inspection of the joints during on-site construction mostly used the mutual dimension inspection of the connecting ports; the measurement and positioning of the nodes was mostly the three-dimensional coordinate measurement and control method. In some complex and changeable spatial structures, the main force-bearing nodes adopt large multi-branch cast steel nodes, which ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/00G01B11/24G01C5/00
Inventor 刘伟滕晓静
Owner CHINA MCC17 GRP
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