ABOUT THE GEOMETRY AND THE APPLICATIONS OF THE TWISTED SURFACES

Authors

  • Carmen Marza Gheorghe Asachi Technical University of Iasi
  • Dalia Cimpeanu Gheorghe Asachi Technical University of Iasi
  • Georgiana Corsiuc Gheorghe Asachi Technical University of Iasi

Keywords:

helical surface, twisted surface, stair, core, tower

Abstract

The helical and spiral surfaces are used in various fields. These surfaces are obtained by rotating a segment line called generatrix around directrices lines, respectively the spiral surfaces are obtained by composing simultaneously the movements of translation and rotation of a plane figure around an axis - which can be a straight line or a curved line, or around a real or imaginary surface - called core. After an overview of these surfaces, the attention of the authors will be focused on the geometrical and graphical analysis of the twisted surfaces in civil engineering branch, such as: columns, helical ramps and stairs, respectively buildings having a futuristic design.

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Published

2015-07-01

Issue

Vol. 10 No. 2 (2015): Special Issue

Section

Theoretical Geometry and Graphics Section

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