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Lener G.,Institute for Structural Engineering and Material Science | Reiterer D.,TIS Techno Innovation South Tyrol KAG | Hauser A.,Institute for Structural Engineering and Material Science
Procedia Engineering | Year: 2013

The assessment of the total service life of steel constructions shall gain importance in the near future due to the increasing significance of building preservation and building modernization. The main cause for failure of existing structural steel constructions under cyclic loading effects is material fatigue. Most steel constructions are however failure tolerant. For economic reasons, this behavior can be considered by including the crack propagation phase into the assessment. In this contribution newly developed software tools and the results of some executed simulations of the total lifetime on existing structures will be presented. © 2013 The Authors. Published by Elsevier Ltd.


The assessment of the total service life cycle of steel constructions will become much more important by the increasing meaning of building preservation and building modernization. The main cause for failure of existing structural steel constructions under cyclic loading is material fatigue. Most steel constructions are failure tolerant. This behaviour can be considered for economic reasons by including the crack propagation phase into the assessment. This paper will present developed software tools and results of executed simulations of the crack propagation phase on real steel structures. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.


Rauch P.,University of Natural Resources and Life Sciences, Vienna | Wolfsmayr U.J.,University of Natural Resources and Life Sciences, Vienna | Borz S.A.,Transilvania University of Brasov | Triplat M.,Slovenian Foresty Institute | And 11 more authors.
Forest Policy and Economics | Year: 2015

The objective of this study is to assess drivers and barriers to primary forest fuel (PFF) supply in the wide-stretched South East Europe (SEE) countries and to develop strategies to improve PFF supply involving dozens of stakeholders from different SEE countries. SWOT (strengths, weaknesses, opportunities and threats) analyses were used to evaluate country supply chains. Based on those a regional SWOT analysis was compiled and strategies were developed and evaluated in a participative decision process. Results show that strategies for increasing biomass utilisation are of high relevance in all participating countries. Additionally, strategies for knowledge dissemination are also important. The evaluated regional strategies for the forest fuel sector examined have great potential to improve cooperation, increase efficiency and strengthen competitiveness of PFF based bioenergy production. © 2015.

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