Buckling Safety Analysis of Circumferentially Edge-Stiffened Openings in Offshore Tubular Steel Towers under Normal and Abnormal Design Situations of the Ultimate Limit State through Parametric and Finite Element Analyses

• 발행기관: 한국방재학회
• 저자명: Hannah Reyno LA Nicolas Jong Sup Park Sung Young Kang Young Jong Kang
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2015년, 100~100쪽, 전체 1쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2015.02.25

영문 초록

This study analyzes the buckling safety in the area of circumferentially edge-stiffened door openings without any additional longitudinal stiffeners of offshore tubular steel towers. The tubular steel tower is subjected to six (6) different load situations which are deemed to be normal and abnormal operating cases for the ultimate limit state. Analytical method using parametric equations based on Eurocode 3 - Design of Steel Structures and numerical method of finite element are used to analyze the critical meridional buckling stress. ABAQUS, a finite element program, is used for the numerical method analysis. Buckling safety analysis in the localized area near the opening is studied, and points of interest are defined for comparison between the two aforementioned analyses. Findings are tabulated and shown in illustrative charts, and conclusions are made.

키워드

buckling meridional buckling stress door opening tubular steel tower wind turbine