A Modeling Method for Reticulated Shell Structure

Abstract

The present invention provides a method for modeling reticulated shell structures, comprising the following steps: determining the required component specification parameter table, creating the component specification parameter table as a component parameter table, creating a component parameterized template with the component parameter table, and importing the parameterized template , and set the calling environment - Create 3D model - Perform collision detection on the 3D model. The invention can quickly establish a three-dimensional model of reticulated shell structure for massive components, greatly improving the modeling efficiency; the accuracy of the model is required to reach the level of component processing, and the information of each component can be accurately counted to achieve the purpose of high-precision modeling; based on reticulated shell The 3D model of the structure can be used for spatial collision inspection to avoid mistakes, omissions, collisions, and lacks of reticulated shells; the 3D model can be applied to component processing and blanking and on-site construction and installation positioning to achieve the purpose of improving production efficiency and guiding reticulated shell construction.

Description

Technical field [0001] The present invention relates to a network case structure modeling method belonging to the technical field of industrial and civilian building. Background technique [0002] The retail structure is a mesh structure, and the characteristics of the rod structure and the thin shell structure are reasonable. It can achieve large span and a beautiful appearance, and can use the factory prefabricated components to achieve industrial production The integrated technical economic indicators are better, and it is a spatial structure with good development prospects. [0003] When using conventional CAD software for the design, due to the large number of net shell structural members, the space is complex, the conventional two-dimensional map expression cannot be completely, accurately expressed, especially the rod arrangement on the node. Because the deviation of the rod and node geometry and the deviation of the surface have a large amount of internal force, overall s...

AI Technical Summary

Problems solved by technology

[0003] When traditional CAD software is used for reticulated shell structure design, due to the large number of reticulated shell structural members and complex spatial layout, the conventional two-dimensional diagram expression method cannot completely and accurately express the design information, especially the layout of the rods on the nodes

Because the deviation of the geometric dimensions of the members and nodes and the deviation of the curved surface have a great influence on the internal force, overall stability and construction accuracy of the reticulated shell, it brings certain difficulties to the structural design and construction, resulting in insufficient expression of component information and difficult Guidance on manufacturing and installation, engineering quantity statistics, time-consuming and labor-intensive issues

The traditional design method gives limited information on members and nodes, which cannot be accurate to the machining accuracy, and it is difficult to provide useful help for the installation and positioning of components on the construction site, and it is also impossible to perform space collision checks

For example, the design often uses TEKLA, MST and other steel grid design and calculation software, focusing on the structural calculation and analysis of the grid, the continuity of the model is not enough, and there is still a distance for refined modeling

Therefore, when the number of components reaches the order of tens of thousands, it takes a lot of manpower and material resources to refine the modeling of massive components

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