WIT Press

Variable Rigidity As A Tool Of Shaping Of Self- Erecting Structures

Price

Free (open access)

Paper DOI

10.2495/MRS000121

Volume

47

Pages

5

Published

2000

Size

371 kb

Author(s)

R. Tarczewski

Abstract

The paper presents a concept of shaping of the space structures formed by means of post tensioning. Basic structure is completed as a plane form with a bottom chord made of the cable. Shortening of the bottom chord allows "self-erection" of the structure. Final shape i.e. curvature of the upper chord is a result of interaction between bending rigidity of the structure and the tensile force in the cable. Struc- tures more rigid in the central part than at the sides gains curvature with smaller radius while structures more rigid at the sides than at the central part gains curva- ture with bigger radius. The simple way of changing global rigidity of the structure is to change its height. This concept allows to easily create a wide range of struc- tures suitable for any purpose especially of

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