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http://dx.doi.org/10.5762/KAIS.2015.16.2.1516

A Numerical Analysis for Stress Concentration of Openings in Offshore Tubular Steel Tower under Design Loading Condition  

Reyno, Hannah (Department of Civil Engineering, Sangmyung University)
Park, Jong-Sup (Department of Civil Engineering, Sangmyung University)
Kang, Sung-Yong (School of Civil, Environmental and Architectural Engineering, Korea University)
Kang, Young-Jong (School of Civil, Environmental and Architectural Engineering, Korea University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.2, 2015 , pp. 1516-1523 More about this Journal
Abstract
This study investigates the stress concentration factor of a door opening of an offshore tubular steel tower. The tubular steel tower is subjected to eight (8) different load combinations which are deemed to be normal and abnormal operating cases for the ultimate limit state and serviceability limit state. Analytical method using parametric equations and numerical method of finite element are used to analyze the stress components as well as any translations or rotations where the flow of stress is interfered with. A finite element program, ABAQUS, is used for the numerical method analysis. Trends of the stress concentration in the localized area near the opening are studied, and points of interest are defined for comparison among three different cases of tubular steel tower: without door and without reinforcement; without door opening and with reinforcement; and with door opening and with reinforcement. Findings are tabulated and shown in illustrative charts, and conclusions are made.
Keywords
Sress Concentration; Door Opening; Wind Turbine; Tubular Steel Tower;
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Times Cited By KSCI : 2  (Citation Analysis)
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