2013 Fiscal Year Final Research Report
Development of seismic structural response analysis method based on the fault-structure system incorporating the inversion analysis
| Project/Area Number |
23686065
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2011-04-01 – 2013-03-31
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| Keywords | 地震応答解析 / 階層型解析 / 逆解析 |
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| Research Abstract |
With aiming to further improve the accuracy of estimate on seismic structural response, we developed a new analysis method which is based on the fault-structure system: the fault mechanism, wave propagation through the crust, amplification near the surface, and soil-structure interaction. To analyze this system at high resolution and accuracy, we developed the forward tool with resolving difficulties: the extremely large computation cost of constructing a three-dimensional numerical model and solving the discretized governing equations. The accuracy of this forward tool is verified by comparing it to a Green's function solution. We demonstrate the potential utility of the method by estimating the seismic response of a large and complex structure in a given earthquake scenario. Further, in order to increase the reliability of this method, we also developed a prototype of the inversion analysis system incorporating the forward tool.
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Research Products
(26 results)
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[Presentation] Three-dimensional seismic response analysis of underground ramp tunnel structure based on multi-step analysis with massive numerical computation2012
Author(s)
Mitsumasa Osada, Hiroshi Dobashi, Kenji, Namikawa, Sho Nonaka, Tsuyoshi Ichimura, Muneo Hori, Takemine Yamada, Naoto Ohbo, Yoshihiro Terashima, Naoyuki Kojima, Takashi Obara
Organizer
WTC 2012
Place of Presentation
Bangkok
Year and Date
20120518-23
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[Presentation] Seismic Performance Analysis of Underground Ramp Tunnel Structure using 3-D Massive Numerical Computation2011
Author(s)
Hiroshi Dobashi, Yoshihiro Terashima, Muneo Hori, Tsuyoshi Ichimura, Naoto Ohbo, Takemine Yamada and Takashi Obara
Organizer
COMPDYN 2011, III ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, M. Papadrakakis, M. Fragiadakis, V. Plevris (eds.)
Place of Presentation
Corfu, Greece
Year and Date
20110526-28
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