URBAN EARTHQUAKE SIMULATION USING 3D NONLINEAR GROUND MOTION ANALYSIS AND MULTI-SCENARIO BUILDING RESPONSE ANALYSIS
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- FUJITA Kohei
- 理化学研究所 計算科学研究機構
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- ICHIMURA Tsuyoshi
- 東京大学 地震研究所
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- TANAKA Seizo
- 東京大学 地震研究所
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- HORI Muneo
- 東京大学 地震研究所・理化学研究所 計算科学研究機構
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- MADDEGEDARA Lalith
- 東京大学 地震研究所
Bibliographic Information
- Other Title
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- 3次元地盤震動解析と多数シナリオの構造物応答解析による都市地震シミュレーション
Abstract
We conduct an urban earthquake simulation with city-block scale 3D nonlinear ground motion analysis and multiscenario analysis of building structure response by utilizing the large and fast compute capability of the K computer. Here, we model a 1.25 km x 1.25 km city block of Shinjuku, Tokyo with temporal resolution of 15 Hz, and compute its response under the 1995 Kobe wave and 1968 Hachinohe wave. In order to reflect the uncertainty of building structure models to the simulation results, we generate many models with varying structural parameters, and compute their response under the Kobe wave input. By increasing the number of samples to 10,000, we were able to obtain convergence of the response distribution. By combining 3D ground motion analysis and multi-scenario analysis of structures, we can improve the scientific rationality of disaster estimations, and can evaluate the damage of structures in terms of probability distributions.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
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Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 71 (4), I_680-I_688, 2015
Japan Society of Civil Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390282680327319040
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- NII Article ID
- 130005100247
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- ISSN
- 21854653
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed