• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2016.05a
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• pp.117-118
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• 2016

전세계 인구 및 경제생산의 약 50%가 연안에 거주하고 있으며, 연안육역에서 집중된 사람들의 생활공간이 사회적, 환경적 이유로 점차 수상공간으로 확장되고 있다. 이에 따라 수상공간을 활용한 다양한 요구들이 증가하고 있으며, 사람들이 보다 안전하고 쾌적하게 수상에서 거주할 수 있는 시설에 대한 수요가 증가하고 있다. 본 연구에서 수상공간의 보다 적극적인 활용을 위해 설치되는 부유식 건축물을 활용하여 부산 연안공간을 보다 적극적으로 활용할 수 있는 방안을 제시하기 위하여 부유식 건축물의 특징, 적용 사례 등을 분석하였다. 또한 부산 연안공간에 부유식 건축물을 건설하기 위한 입지선정방법, 법제도 및 부유식 건축물 설계방법에 대하여 제시하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.285-287
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• 2012

염해는 철근 콘크리트 구조물의 주요 열화원인으로서 특히 수해양 부유식 건축물의 상부구조는 비래염분에 의한 피해에 노출되어 있고, 해수에 접하고 있는 함체는 다공질 콘크리트의 모세관으로 염수이온이 침투하므로 상당히 높은 수위의 열화 환경에 노출되어 있다고 분류할 수 있다. 본 연구는 해양에서 유입되는 비래염분량을 정량화하여 철근 콘크리트 구조물 뿐만아니라 강재 건자재의 장수명화를 꾀하는 기초자료를 구축하고자 하였다. 1년간에 걸쳐 측정된 비래염분유입 지역은 기존연구에서 조사된 1km 범위을 상당히 초과하고 있으며 그 량도 강재 발청농도를 탁월하게 상회하는 것으로 분석되었다.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.34 no.6
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• pp.275-289
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• 2022

New businesses such as marine leisure and floating construction have recently flourished on the coast. As a result, consideration is given to a floating structure appropriate for marine environments. In this study, we applied a damping plate to increase the stability of a hybrid floating structure that was expanded by vertical and horizontal stacking of mobile unit modules. In the numerical analysis using ANSYS AQWA, the behavioral characteristics of the floating structure were analyzed according to the length change of the damping plate. However, the wave forces acting on a floating structure are excessively calculated by the resonance of fluid surrounded by the structure in the numerical analysis using potential flow. Therefore, we used the damping zone option of the ANSYS AQWA in the frequency domain analysis.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.06a
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• pp.209-210
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• 2011

최근 다양한 수해양공간개발계획에 있어 플로팅 건축물 도입에 대하여 긍정적인 관심이 증가하고 있다. 플로팅 건축물은 수상에 부유식 구조체 형식으로 조성되는 거주용 시설로 육역의 일반 건축물과 비교하여 수역에 위치하는 점과 구조체가 부체인 점에서 그 특성이 있다. 이러한 플로팅 건축물의 건설을 위해서는 플로팅 건축물 특성에 따른 장단점을 파악하여 적당한 입지를 찾는 것이 가장 중요하다. 본 연구에서는 플로팅 건축물 입지선정을 위해 고려해야하는 다양한 전제조건을 검토하여 플로팅 건축물 입지평가항목을 도출하고 전문가 설문조사를 통하여 각 평가항목별 가중치를 설정하여 플로팅 건축물 입지평가기준을 제시하였으며 입지평가기준을 바탕으로 전남과 전북지역을 대상으로 플로팅 건축물 입지를 선정하였다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.30 no.3B
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• pp.315-324
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• 2010

We developed a design chart for very large floating structures through intensive hydroelastic analysis. Using this chart, one can predict the hydroelastic response of very large floating structures preliminarily at design stage without the cost-demanding hydroelastic analysis. This paper presents two new design charts based on the theory of VLFS. The purpose of the first design chart is to determine RAOs of the maximum longitudinal stress of VLFS considering properties of waves and structures. The design chart I can be applied to any sizes of VLFS in same aspect ratios and dimensionless stiffness parameters. The second design chart is developed to take into account the actual wave condition by using the Bretschneider spectrum with Beaufort sea state.

• Journal of Navigation and Port Research
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• v.32 no.3
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• pp.257-264
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• 2008

This study is intended to know what is the legal problems to settlement and public announcement of property right for construction of marine architectural building in Korea. Firstly, the situation and the prospect around marine architectural building are examined Secondly, the legal concepts of marine architectural building and the application of related laws are analyzed. Thirdly, the problems related to public announcement of property right of marine architectural building are suggested. Fourthly, some improvement schemes to solve the legal problems in relation with property right of buildings on the water at sea and ocean are proposed. As the conclusion, the marine architectural building can be divided into fixed-type and floating-type in order to find the proper way to handle the public announcement of property right for that sort of building. The fixed-typecan be registered as real estate according to the Building Law through the amendment of the existing related laws. But for the registration of floating-type building a new law should be made. In the near future, improvements on the legal system related with the settlement of property right of marine architectural building should be made, so that private sectors can join construction and operation of the building. Especially a new law for the floating-type marine architectural building should be made as soon as possible.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.10a
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• pp.201-202
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• 2014

플로팅 건축은 일반 육상 건축과는 달리 건축의 개념을 해양으로 확장시킨 것으로 육상 건축이 가지는 한계를 극복하는 하나의 출발점으로 시작하였다. 하지만 우리나라 플로팅 건축의 역사는 매우 짧으며 축적된 기술도 거의 전무한 실정이다. 아직 초보단계에 그치고 있는 플로팅 건축은 활용측면에서도 단순 기능의 부유식 선착장이나 낚시용 시설 등으로 사용되고 있을 뿐이며 ${\cdots}$(중략)${\cdots}$.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.229-235
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• 2019

A floating photovoltaic generation system is a new concept that combines existing photovoltaic generation technology with floating technology. This is installed in the water not on conventional land and a building. The system is designed as a unit module type that can be connected to other modules according to the power generation capacity, thereby forming a large-scale power generation facility. As a renewable energy source, it is composed of a floating structure, mooring device, photovoltaic power generation facility, and underwater cable. Because this system is installed outdoors, the effect of the wind load on the structure is very large. In this study, the wind loads most affected on the floating photovoltaic generation structure were obtained by computational fluid dynamic analysis. The flow characteristics and wind loads were analyzed for a range of wind orientations and angles of inclination. The analysis showed the position and magnitude of the maximum wind load to the wind direction and the flow characteristics around the solar panel and floating system. The wind load increased with increasing angle of inclination of the panel to the ground.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.32 no.1A
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• pp.19-30
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• 2012

Recently, vision-based dynamic deflection measurement techniques have significant interests and are getting more popular owing to development of the high-quality and low-price camcorder and also image processing algorithm. However, there are still several research issues to be improved including the self-vibration of vision device, i.e. camcorder, and the image processing algorithm in device aspect, and also the application area should be extended to measure three dimensional movement of floating structures in application aspect. In this study, vision-based dynamic motion measurement technique using multiple targets is proposed to measure three dimensional dynamic motion of floating structures. And also a new scheme to select threshold value to discriminate the background from the raw image containing targets. The proposed method is applied to measure the dynamic motion of large concrete floating quay in open sea area under several wave conditions, and the results are compared with the measurement results from conventional RTK-GPS(Real Time Kinematics-Global Positioning System) and MRU(Motion Reference Unit).