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http://dx.doi.org/10.5762/KAIS.2014.15.3.1764

Performance Evaluation of Junctions between Multi-Tubular and Cylindrical Sections for Steel Wind Tower  

Kim, Jongmin (Steel Structure Research Division, RIST)
Park, Hyun-Yong (Department of Civil and Environmental Engineering, Hanbat National University)
Kim, Kyungsik (Department of Civil Engineering, Cheongju University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.3, 2014 , pp. 1764-1769 More about this Journal
Abstract
Numerical investigations have been conducted on the junction that connect the multi-tubular section and the single shell section in order to evaluate applicability of hybrid sections in wind turbine towers instead of conventional single shell towers. Major characteristics in structural details include extension of multi-tubular member into shell end section, installation of wing stiffeners, and different layout of floor beams. Elastic and nonlinear incremental analyses were conducted to examine stress concentration patterns and ultimate behaviors, respectively. Based on evaluation of structural performance due to vertical and horizontal forces, it has been confirmed that installation of floor beams and wing stiffeners sensitively affect ultimate strength of global wind tower.
Keywords
Multi-tubular; Shell; Stress concentration; Ultimate strength; Wind turbine tower;
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