Experimental evaluation of serviceability of multi-unit floating structures with wave-dissipating modules
Youn-Ju Jeong,Min-Su Park,Young-Taek Kim,Jeongsoo Kim
Abstract
This study experimentally evaluated the serviceability of multi-unit floating structures designed for marine city applications and verified the effect of wave-dissipating modules on wave motion reduction. Serviceability indicators were defined as vertical acceleration and inclination (pitch and roll), reflecting both the stable operation of topside facilities and human activity and discomfort (motion sickness). The experimental results showed that the installation of wave-dissipating modules reduced vertical RMS accelerations by approximately 34- 39% and pitch/roll inclinations by 21-42%. These improvements were consistently observed not only under 1-year return period wave conditions but also under extreme 100-year return period waves, thereby confirming the reliability of the proposed design. This study demonstrates that wave-dissipating modules are an effective design strategy to enhance the habitability and serviceability of floating infrastructures for marine cities. Furthermore, it highlights the need to extend conventional serviceability evaluation frameworks, which have been focused on industrial facilities, to ergonomics-based criteria that reflect the dual requirements of technical stability and humanoriented serviceability in marine city environments. These findings are expected to make an important contribution to the development of next-generation offshore infrastructures, such as marine cities and offshore renewable energy hubs, where both technical stability and human-oriented serviceability must be simultaneously ensured.
Youn-Ju Jeong, Min-Su Park, Jeongsoo Kim — Department of structural engineering research, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-ro, Goyang, Gyeonggi-Do,10223, South Korea
Young-Taek Kim — Department of hydro science & engineering research, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-ro, Goyang, Gyeonggi-Do,10223, South Korea
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