DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Cho, Gye-Chun | - |
dc.contributor.advisor | 조계춘 | - |
dc.contributor.author | Dong, Yihe | - |
dc.date.accessioned | 2022-04-15T07:56:43Z | - |
dc.date.available | 2022-04-15T07:56:43Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=963775&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/294871 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 건설및환경공학과, 2021.8,[ix, 103 p. :] | - |
dc.description.abstract | With the increase in the volume and weight of offshore floating structures, the requirements for using the suction anchor as a basis have increased. During the past few years, several methods have been used to modify the regular suction anchors, thus can reach a better performance. This study employed two distinctly modified suction anchors (MSA-H and MSA-HV) in a series of 60-g centrifuge tests and Abaqus simulations to verify the influence of a horizontal outer skirt or horizontal–vertical combined skirt for improving the inclined pull-out capacities but decreasing the displacement of RSA. The 60°-inclined centrifuge test results demonstrated that both MSA-H and MSA-HV improved the capacities of RSA. A horizontal skirt mobilized a relatively higher moment bearing capacity for the rotational behavior. Moreover, this study found that the different improvements in the inclined pull-out capacity and the moment bearing capacity originated from the different movement combinations of the different anchor shapes. The higher inclined pull-out capacity of MSA-HV came from a more significant portion of translation, while the higher moment capacity of MSA-H resulted from a larger percentage of rotation. For parametric studies in this study on ultimate bearing capacities, totally 102 Abaqus simulations were conducted at five loading points of RSA and MSA-H, and at seven loading points of MSA-HV under six inclinations varying from 0° to 90°. The test results showed that the optimum loading point of the three anchors are different, and the improvement of ultimate capacities of MSA-HV is the most apparent. Also, the failure envelopes are drawn of the three anchors to show the improvements of the ultimate bearing capacities of horizontal and vertical components. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | modified suction anchor▼ainclined monotonic load▼aultimate bearing capacity▼arotational behavior▼aoptimum loading point▼acentrifuge test▼aAbaqus numerical analysis | - |
dc.subject | 개량형 석션 앵커▼a정적 경사 하중 실험▼a최대 지지력▼a회전 거동▼a최적의 하중 재하점▼a센트리퓨지 모델 실험▼aABAQUS 수치 해석 | - |
dc.title | Analysis of modified suction anchors under monotonic inclined pull-out load in silty sand | - |
dc.title.alternative | 사질토 지반에 설치된 개량형 석션앵커에 대한 경사 인발 거동 분석 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :건설및환경공학과, | - |
dc.contributor.alternativeauthor | 동일학 | - |
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