The floating type structural system is applicable to large offshore structures including airports, power plants, and multi-purpose facilities. Such a large-scale floating structure should be in service at least 100 yr because of the large capital investments and social utilization, so it also should be designed to be safe and stable against several natural hazards and accidents during its service life. In this report, seismic response and risk analyses of a mega-floating structure supported with many dolphins (MFSD) are carried out to study the mutual interaction and its instability of the floating-dolphin system against earthquake attack. The final goal is to obtain the optimal allocation of dolphins to minimize the displacement of an MFSD.

1.
Boore
D. M.
, and
Joyner
W. B.
,
1982
, “
The Empirical Prediction of Ground Motion
,”
Bulletin of Seismology Society of America
, Vol.
72
, pp.
S43–S60
S43–S60
.
2.
Hanks
T. C.
, and
McGuire
R. K.
,
1981
, “
The Character of High-Frequency Strong Ground Motion
,”
Bulletin of Seismology Society of America
, Vol.
71
, pp.
2071
2095
.
3.
Harada, T., T. Tanaka, and Y. Tamura, 1995, “Digital Simulation of Earthquake Ground Motions Using a Seismological Model,” JSCE, No. 507, pp. 209–217.
4.
Haskell
N. A.
,
1964
, “
Total Energy and Energy Spectral Density of Elastic Wave Radiation From Propagating Faults
,”
Bulletin of Seismology Society of America
, Vol.
54
, pp.
1811
1841
.
5.
Hino, M., 1977, Spectral Analysis, Asakura Publishing Inc.
6.
Irikura, K., 1986, “Prediction of Strong Acceleration, Motions Using Empirical Green’s Function,” Proceedings of 7th Japan Earthquake Engineering Symposium, pp. 151–156.
7.
Kameda, H., 1975, “On the Consideration of Calculating Method of Nonstationary Power Spectral Density of Strong Motion Accelerogram,” JSCE, No. 235, pp. 55–62.
8.
Kamiyama, M., 1986, “Strong Motion Earthquake Wave Form of the Baserock and Its Prediction by Statistical Analysis of Strong Motion Records,” JSCE, No. 374, pp. 557–566.
9.
Kanai
K.
,
1957
, “
A Semi-Empirical Formula for the Seismic Characteristics of the Ground Motions
,”
Bulletin of Earthquake Research Institute
, University of Tokyo, Japan, Vol.
35
, pp.
309
325
.
10.
Kawakami, E., 1989, “Temporal and Spatial Simulation of Earthquake Wave Form From the Observed Data at the Single, Station,” JSCE, No. 410/112, pp. 435–443.
11.
Matsuda
T.
,
1975
, “
Earthquake Magnitude and Its Repetition Period Occurring From the Active Faults
,”
Seismology
, Vol.
28
, pp.
269
283
.
12.
Matsuda
T.
,
1990
, “
Seismic Zoning Map of Japanese Islands With Maximum Magnitudes Derived From Active Fault Data
,”
Bulletin of Earthquake Research Institute
, University of Tokyo, Japan, Vol.
65
, pp.
289
319
.
13.
Seno, T., 1996, “Plate Movement and Earthquake in the Vicinity of Japan,” Hanshin-Awaji Great Earthquake and Future Prediction, Iwanami Publishing Inc., pp. 295–303.
14.
Sugito, M., 1986, “Earthquake Motion Prediction, Microzonation, and Buried Pipe Response for Urban Seismic Damage Assessment,” doctorial dissertation, Kyoto University, Japan.
15.
Theoretical Earthquake Research Group, 1994, Earthquake Ground Motion, Kashima Publishing Inc.
16.
Utsu, T., 1984, Seismology, Kyouritu Zensho.
17.
Warburton, G. B., 1976, The Dynamical Behavior of Structures, Pergamon Press.
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