Original Scientific Paper, Volume 10, Number 1, Year 2012, No 221, pp 49 - 52

Published: Apr 25, 2017

DOI: 10.5937/jaes10-1670

WIND TOWERS - DESIGN OF FRICTION CONNECTIONS FOR ASEMBLING SECTIONS OF TUBULAR STEEL TOWERS

Zlatko Markovic 1
Zlatko Markovic
Affiliations
  University of Belgrade, Faculty of Civil Engineering, Belgrade, Serbia
Jelena Dobric 1
Jelena Dobric
Affiliations
  University of Belgrade, Faculty of Civil Engineering, Belgrade, Serbia
Nenad Fric 1
Nenad Fric
Affiliations
  University of Belgrade, Faculty of Civil Engineering, Belgrade, Serbia
Boris Gligic 1
Boris Gligic
Affiliations
  University of Belgrade, Faculty of Civil Engineering, Belgrade, Serbia
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Abstract

The towers represent about 15 to 20% of the total installation costs and optimized design may therefore lead to substantial savings with regard to costs and use of materials. Some of the most interesting design and manufacturing details are connections used to assemble sections of tubular steel towers supporting wind turbines. There is traditional flange ring connection and on the other side, as a new proposal, friction connection. In this paper theoretic basis of design of friction connection of wind towers is given.

Keywords

wind tower friction connection tension controlled bolts friction surfaces

References

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EN 1993-1-9 (2005). “Eurocode 3 - Design of steel structures - Part 1-9: Fatigue”, CEN, Brussels, Belgium.

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Heistermann C. 2011. Behaviour of Pretensioned Bolts in Friction Connections. Lulea University of Technology. 2011.

Training Course Wind towers: Design by FEM and Technological Features, Coimbra, Portugal, 2011.

N. Fric, M. Pavlovic, Z. Markovic, D. Budevac: “ WIND TOWERS - DESIGN OF FLANGE RING CONNECTION”, 14th International Symposium MASE, Struga, Macedonia,

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