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http://dx.doi.org/10.4334/JKCI.2013.25.4.401

Hydrodynamic Motion and Structural Performance of Concrete Floating Structure by Length Using Numerical Analysis  

Lee, Du-Ho (Korea Institute of Construction Technology, Structural Engineering Research Division)
You, Young-Jun (Korea Institute of Construction Technology, Structural Engineering Research Division)
Publication Information
Journal of the Korea Concrete Institute / v.25, no.4, 2013 , pp. 401-409 More about this Journal
Abstract
In the present study, numerical analysis was performed for hydrodynamic motion and structural performance on four different concrete floating structures, which have same cross-section but different length. The hydrodynamic analysis of floating structures is carried out using ANSYS AQWA with the different 34 wave load on regular wave period from three seconds to ten seconds in 35 m water depth. In order to evaluate structural performance of floating structures under the critical wave load which obtained from hydrodynamic analysis. The integrated analysis is also carried out through the mapping method, which can directly connect the wave-induced hydraulic pressure obtained form ANSYS AQWA to Finite Element Model in ANSYS Mechanical. As a results of this study, the hydrodynamic motion of floating structures is decreased as the length of structure increased. It means that the effect of wave-structure interaction is strongly dependent on the relationship between a wave period and a length of structure. Moreover, it is found that tension stress on bottom slab of floating structure is occurred by the critical wave load, the sectional force is not influenced by length of a structure.
Keywords
concrete floating structure; hydrodynamic motion; critical wave; structural performance; sectional force;
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1 Link, R. A. and Elwi, A. E. "Composite Concrete-Steel Plate Walls: Analysis and Behavior," Journal of Structural Engineering ASCE, 1995, Vol. 121, pp. 260-271.   DOI   ScienceOn
2 Lanquetin, B., Collet, P., and Esteve, J., "Structural Integrity Management for a Large Prestressed Concrete Floating Production Unit," 26th International Conference on Offshore, Mechanics and Arctic Engineering, SanDiego, 2007, pp. 1-12.
3 Clauss, G. F., Sprenger, F., Testa, D., Hoon, S., and Huhn, R., "Motion Behaviour of a New Offshore LNG Transfer System at Harsh Operational Conditions," 28th International Conference on Ocean, Offshore and Arctic Engineering, Honolulu, USA, 2009, pp. 385-939.
4 Cheetham, P., Du, S., May, R., and Smith, S. "Hydrodynamic Analysis of Ship Side by Side in Waves," International Aerospace CFD Conference, Paris, France, 2007.
5 Palo, P., "Mobile Offshore Base: Hydrodynamic Adv Ancements and Remaining Challenges," Marine Structures, 2005, pp. 133-147.
6 ANSYS AQWA Uer's Manual, ANSYS Inc 2010, 84 pp.
7 Thanh, N. H., Noh, H. C., Kim, S. E., and Na, S. W., "Estimation of the Design Member Forces in Very Large Floating Structure due to Wave Loads," Journal of The Korea Society of Civil Engineers, Vol. 29, No. 6A, 2007, pp. 641-650.   과학기술학회마을
8 Zi, G. S., Kim, J. G., Lee, S. O., and Lee, P. S., "Development of a Design Chart for the Initial Design Stage of Very Large Floating Structures," Journal of The Korea Society of Civil Engineers, Vol. 30, No. 3B, 2010, pp. 315-324.
9 Hong, S. Y., Design Manual for Very Large Floating Structure, KORDI, 2007, 280 pp.
10 Kim, K. T., "Hydroelastic Analysis of Three Dimensional Floating Structures," MS. C. Thesis, KAIST, Korea, 2007, 55 pp.
11 Allen, E., Dees, D., Hicks, S., Hollibaugh, R., Martin, T., and Starling, T., "Design of Floating Production Storage and Offloading Vessel for Offshore Indonesia," Final Report, Texas A&M University, Texas, 2006, 88 pp.
12 Jeong, Y. J., Cho, J. Y., You, Y. J., and Na, S. W., "Stability and Wave-Induced Bending Moment for Design of Offshore Floating Terminal," 9th Pacific Structural Steel Conference, Beijing, 2010, pp. 369-374.
13 Korea Institute of Construction Technology, Development of Application Technology for Concrete Floating Structure, Korea, 2010, 457 pp.