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Method for positioning intersecting mouth space of pipe truss secondary rod

A positioning method and intersecting mouth technology, applied in the processing of building materials, marking of measurement points, construction, etc., can solve the problems that intersecting lines cannot be directly adopted for plane design, unfavorable design description and dimensioning of intersecting lines, etc., to achieve The effect of shortening positioning time, high work efficiency, and meeting basic accuracy requirements

Active Publication Date: 2015-07-01
CHINA 22MCC GROUP CORP +1
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  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the intersecting lines at the relevant nodes in the prior art cannot be directly designed in a plane, and the intersecting lines have no obvious feature points, which is not conducive to design description and dimensioning. full

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  • Method for positioning intersecting mouth space of pipe truss secondary rod
  • Method for positioning intersecting mouth space of pipe truss secondary rod
  • Method for positioning intersecting mouth space of pipe truss secondary rod

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specific Embodiment

[0029] In this embodiment, taking the assembly of the intersecting joints of pipes and pipes in a typical pipe truss structure as an example, AUTOCAD is used to model the steel truss, and Boolean operations are performed on the modeled primary and secondary member models to form physical members. After approaching the simulation state, carry out imprint processing on the intersecting line of the intersecting outer surface of the primary and secondary members, leaving an intersecting line trajectory line, and determine any three feature points on the intersecting line trajectory line, as shown in figure 1 , locate the position of the secondary rod (steel pipe) 3 on the main rod (steel pipe) 1, the positioning method is: select three feature points on the upper port 2 and the lower port 4 of a secondary rod 3 to locate respectively, and the three feature points After the points are connected, an acute triangle structure is formed to locate the position of the secondary rod (steel...

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Abstract

A method for positioning intersecting mouth space of a pipe truss secondary rod is for determining the position of a secondary rod on a main rod. The method, a three-point positioning method, comprises the following steps: a design software is utilized to build a three-dimensional solid model of a steel pipe truss, boolean operations are then done at nodes of each of the built models of the main and the secondary rods, an intersecting line trajectory is left, and three random feature points are determined on the intersecting line trajectory; and relative size positions of the three feature points determined in last step are marked one by one, relative coordinates of the three feature points are directly lofted and plotted on the main rod by means of a measuring ruler, and the secondary rods can be positioned and assembled according to the contour. Via the three feature points, the method can determine the position of the secondary rod on the main rod quickly and relatively precisely. Through computer lofting and entity lofting processes, the method not only satisfies basic precision requirements of steel structure positioning, but also reduces time needed for lofting and rod positioning, and thus improves work efficiency.

Description

technical field [0001] The invention relates to a set of steel structure deepening design and secondary process lofting, which is used for steel structure processing, manufacturing and bar assembly [0002] The invention relates to a three-dimensional space positioning method for high-altitude hoisting and positioning of rods, in particular to a positioning method for the intersecting opening space of secondary rods of pipe trusses. Background technique [0003] The traditional lofting method of steel structure processing technology is to directly stake out the size of the detailed design plane. This method is only applicable to regular steel structures, that is, the plane projection of the actual structure and the dimension marked on the detailed design drawing design can be one-to-one correspondence , The dimensions marked on the drawing plane can directly guide the assembly of components such as steel columns, steel beams and trusses on site and the installation and posit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C15/02E04G21/14
Inventor 刘瑞强
Owner CHINA 22MCC GROUP CORP
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