An Improved Finite Element Analysis Model of Offshore Cable-Supported Structures

J. Ocean Eng. Technol. 2004;18(6):51-57.

KIM SUN-HOON;SONG MYUNG-KWAN;NOH HYUK-CHUN;

Department of Civil Engineering, Youngdong University;Department of Civil Engineering, University of Tokyo;Department of Civil Engineering and Engineering Mechanics, Columbia University;

해양 케이블 지지구조물의 구조해석을 위한 개선된 유한요소해석모델

김선훈;송명관;노혁천;

영동대학교 건설공학부 토목환경공학과;일본 동경대학 사회기반공학전공 토목공학과;미국 콜롬비아대학 토목공학과;

Keywords: Offshore Cable-supported Structure, Nonlinear Static Analysis, Catenary Function, Stability Function

핵심용어: 해양 케이블 지지구조물, 비선형정적해석, 현수선함수, 안정함수

Abstract

In this study, the improved three-dimensional analysis model designed for a more accurate analysis of marine cable-supported structures, is presented. In this improved analysis model, the beam elements, of which the stability function is derived using Taylor's series expansions, are used to model space frame structures, and the truss elements. The equivalent elastic modulus of the truss elements is evaluated on the assumption that the deflection curve of a cable has a catenary function. By using the proposed three-dimensional analysis model, nonlinear static analysis is carried out for some cable-supported structures. The results are compared with previous studies and show good agreement with their findings.