Hybrid Composite Cable With an Increased Specific Strength for Tensioned Structures

Dmitrijs Serdjuks, Kārlis Rocēns, Leonīds Pakrastiņš

Abstract


High-strength hybrid composite cables with large specific strength on the basis of such materials as carbon fibre reinforced plastics (CFRP), glass fibre reinforced plastics (GFRP) and Vectran, are widely used in constructional practice. But using a steel component enables to increase small relative elongation, decrease brittleness and expand area of application of high-strength hybrid composite cables. Steel was investigated in combination with such materials as CFRP, GFRP, and Vectran. The behaviour of hybrid composite cable was investigated analytically and by experiment. Hybrid composite cables with the increased specific strength were considered as materials of several cable groups for a prestressed saddle-shaped cable roof with dimensions 50×50 m. The opportunity to decrease the displacements of composite saddle-shaped cable roof by using cable trusses, made from the hybrid composite cable with the increased specific strength was investigated. Rational geometric characteristics of the cable truss were determined by the numerical experiment. It was shown that using hybrid composite cable enables to increase its specific strength up to 2.4 times. Rational components for composite cable with an increased specific strength were chosen by the numerical experiment.


Keywords:

hybrid composite cable; rational components; saddle-shaped roof; cable truss; max vertical displacements; effectiveness of cable net materials

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References


Beers, D. E.; Ramirez, J. E. 1990. Vectran fibers for ropes and cables, in Proc of the Conference MTS’90. Sept 26–28, 1990, Washington, USA, 662–670.

Bengtson, A. 1994. Fatigue tests with carbon-fiber-reinforced composite cable as nonmetallic reinforcement in concrete, Chalmers University of Technology, Dept of Building Materials Göteborg, Sweden, 1–14.

Berger, H. 2005. Light structures – structures of light: the art and engeneering of tensile architecture illustrated by the work of Horst Berger. 2nd edition. AuthorHouse. 248 p. ISBN 1420852671.

Blum, R. 2000. Material properties of coated fabrics for textile architecture, in Proc of the Symposium ”The Design of Membrane and Light Weight Structures”. Sept 15–16, 2000, Brussel, Belgium, 63–88.

Costello, G. A. 1997. Theory of wire rope. 2nd edition. Springer-Verlag, NewYork, Berlin, Heidelberg, 122 p. ISBN 9780387982021:122.

Houtman, R. 2003. There is no material like membrane material, in Proc of the Tensinet Symposium ”Designing Tensile Architecture”. Sept 19–20, 2003, Brussel, Belgium, 178–194.

Kumar, K.; Cochran, Ir. I. E. 1997. Closed form analysis for elastic deformations of multilayered strands, Journal of Applied Mechanics ASME 54: 898–903.

Pakrastinsh, L.; Serdjuks, D.; Rocens, K. 2001. Some structural possibilities to decrease the compliance of saddle shape cable structure, in Proc of 7th International Conference ”Modern Building Materials, Structures and Techniques”. May 16–18, 2001, Vilnius, Lithuania. 24 p.

Rocens, K.; Verdiņš, G.; Serdjuks, D.; Pakrastiņš, L. 1999. Kompozītpārseguma konstrukcija [Rocens, K.; Verdinsh, G.; Serdjuks, D.; Pakrastinsh, L. Structure of composite roof]. Latvijas Republikas Patentu Valde, Int.Cl. 6 E04B5/02, E04B5/43 [Patent No. 12191 of the Republic of Latvia, published in 20.03.1999].

Serdjuks, D.; Rocens, K. 2003. Hybrid composite cable based on steel and carbon, Materials Science 9(1): 27–30.

Serdjuks, D.; Rocens, K. 2004. Decreasing the displacements of a composite saddle-shaped cable roof, Mechanics of Composite Materials 40(5): 675–684.

Serdjuks, D.; Rocens, K.; Pakrastinsh, L. 2000. Utilization of composite materials in saddle-shaped cable roof, Mechanics of Composite Materials 36(5): 385–388.

Спиридонов, А. 1981. Планирование эксперимента при исследовании технологических процессов [Spiridonov, A. Experiment design for investigation of technological process]. Москва: Стройиздат. 350 c.

Трущев, А. 1983. Пространственные металлические конструкции [Truschev, A. Spaceous metal structures]. Москва: Стройиздат.




DOI: 10.3846/1822-427X.2008.3.129-136

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