Modeling method for steel structure of large-span steel arch surface grid roof steel structure based on Rhino platform

Abstract

The invention relates to the technical field of three-dimensional modeling of steel structures, in particular to a modeling method for large-span steel arch surface grid roof steel structure based onRhino platform. The modeling method comprises the following steps of: analyzing a two-dimensional design drawing and extracting a required center line, drawing the required center lines in in the Topplane, the Front plane and Right plane of Rhino, constructing the steel arch surface in Rhino, drawing the roof reference plane by using the center line of the steel arch surface in Rhino, projectingthe center line of the projected roof to the roof reference plane in the Top plane of Rhino, the parameterized modeling grid roof in the Grasmotop, and generating the baked grid roof in the Grasmotopto entity. The surface modeling in three-dimensional modeling effect is remarkable, not only adopts the powerful curved surface modeling function in the Rhino software, but also utilizes the plug-in Grasmotop to parameterize the grid roof, can accurately express the surface modeling of the steel structure, improves the accuracy and the efficiency of whole curved surface three-dimensional modelingof hyperbolic components and monobolic components, and provides an advantageous guarantee for the safety of the steel structure.

Description

technical field [0001] The invention relates to the technical field of three-dimensional modeling of steel structures, in particular to a method for modeling steel structures of large-span steel arch curved surface grid roofs based on the Rhino platform. Background technique [0002] The rapid development of the public building industry has brought opportunities to various industries, especially the development of the steel structure industry to a higher level, followed by the public building steel structure industry's requirements for modeling are becoming more and more complex. In particular, the surface modeling of steel structures is more and more widely used, which brings great challenges to the installation of steel structures. In order to better complete the installation of steel structures, the steel The 3D modeling of structural surface modeling is particularly important. In recent years, although the number of computer 3D design software has been increasing, most o...

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Problems solved by technology

[0002] The rapid development of the public building industry has brought opportunities to various industries, especially the development of the steel structure industry to a higher level, followed by the public building steel structure industry's requirements for modeling are becoming more and more complex. In particular, the surface modeling of steel structures is more and more widely used, which brings great challenges to the installation of steel structures. In order to better complete the installation of steel structures, the steel Three-dimensional modeling of structural surface modeling is particularly important. In recent years, although the number of computer 3D design software has continued to increase, most software cannot accurately express steel structure surface modeling, high modeling accuracy and low efficiency

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