Prediction and Evaluation of Surface Geology on Input Ground Motions for Seismic Design
| Project/Area Number |
10650466
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
構造工学・地震工学
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| Research Institution | University of Miyazaki |
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Principal Investigator |
HARADA Takanori MIYAZAKI UNIVERSITY, FACULTY OF ENGINEERING, Professor, 工学部, 教授 (70136802)
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| Project Period (FY) |
1998 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1998: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Boundary Element Method / Seismic Ground Motion / Seismic Waves / Fault / Seismic Design / 3次元 / 耐震設計 / レベル2地震動 / 設計用入力地震動 / 運動学的断層モデル / 地震波 / 剛性マトリックス / 確率論的グリーン関数法 / 経験的グリーン関数法 / 地震波合成 / 地盤特性 |
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| Research Abstract |
A direct boundary element method of analysis of fault-three dimensional ground system with irregular topography has been developed by combining with a kinematical rupturing fault model. It is found from a numerical example that the several vortexes, like those appearing behind an obstacle in an air or water flow, can be seen in the seismic wave field on free-field ground surface near a strike slip fault and then the space-time variation of near-field ground motions are quite large and complex.
It is also found that the seismic waves radiated from the rupturing fault are amplified drastically by the alluvial embedded valley.
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Report
(4 results)
Research Products
(27 results)
