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SLIP-JOINT CONNECTION OF CONICAL TOWER SEGMENTS - EXPERIMENTAL AND NUMERICAL ANALYSIS

Ing. Michal Botlo, PhD. Ing. Jan Brodniansky, PhD. Ing. Martin Magura, PhD. Prof.Ing. Jan Brodniansky PhD.

First published: 2017-11-20https://doi.org/10.5593/sgem2017h/63/s26.082View metrics

Abstract

The presented paper deals with the design and examination of steel towers of electrical transmission lines with circular or polygonal cross section. Structures of this kind are a safe and reliable option when selecting the appropriate structural solution, but nevertheless often remain omitted due to difficulties with design methodology. The cross sections of conical towers are in majority of cases categorized as class 4 sections. Being classified as such, they are in certain loading situations considered as shell structures, which results in structural problems related to buckling and web deformation. The presented article provides the results of a FEM analysis of multiple connection details of conical steel towers, highlighting the key aspects of their design, the crucial points for consideration, and the resultant stresses and deformations invoked by the loads these towers are subjected to in real conditions. Furthermore, it provides a simplified methodology of calculating the stress in perhaps the most vulnerable structural detail, i.e. the slip-joint connection of tower segments. The method is also compared with the FEM software analysis in order to identify its possible weaknesses.

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Publication details

Title
SLIP-JOINT CONNECTION OF CONICAL TOWER SEGMENTS - EXPERIMENTAL AND NUMERICAL ANALYSIS
Authors
Ing. Michal Botlo, PhD. Ing. Jan Brodniansky, PhD. Ing. Martin Magura, PhD. Prof.Ing. Jan Brodniansky PhD.
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future
Publisher
STEF92 Technology
Year
2017
Pages
651-658
SWS Citekey
Botlo201726651658
ISSN
1314-2704
ISBN
978-619-7408-29-4
Language
en
Publication type
Conference Paper
Keywords
slip-jointsteel towertangential stressfinite element method (FEM)
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