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고정식 해양구조물의 구조설계 기술 확보를 위한 스캔틀링 기법분석 및 강도평가 연구Study of Rule Scantling Method and Structural Strength Evaluation to Obtain Structural Design Technology for Fixed Offshore Platform

Other Titles
Study of Rule Scantling Method and Structural Strength Evaluation to Obtain Structural Design Technology for Fixed Offshore Platform
Authors
이강수박병재김현석김도엽
Issue Date
17-12월-2017
Publisher
선박해양플랜트연구소
Keywords
Jacket; Rule Scantling; Structural Design; Inplace Analysis; Structural Strength Evaluation
Citation
선박해양기술, v.2017, no.58, pp 69 - 79
Pages
11
Journal Title
선박해양기술
Volume
2017
Number
58
Start Page
69
End Page
79
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/8241
Abstract
In this study, the environmental load and the gravity load acting on a fixed offshore platform designed by rule scantling method are estimated and structural strength evaluation is performed to evaluate the safety of the structure and to investigate the effect of material and structural shape. In order to establish structural design technology of a fixed offshore jacket structure, the overall load calculation method proposed by the relevant design regulations and the overallshape of the jacket and the method of member arrangement are analyzed. Based on the size of the jacket structure and the water depth data, the specification of penetration pile is determined. Furthermore, the inner diameter of the jacket leg is decided by the installation method. The specific dimensions of leg and members of the jacket are designed to meet material strength standards such as slenderness, buckling, and hydrostatic pressure collapse. To assess the strength of the designed jacket structure, the allowable stress ratio is evaluated by performing beam element based full structure analysis. The jacket structure design and strength evaluation techniques discussed in this paper will be used as a cornerstone for safe and efficient structure design.
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