1997 Fiscal Year Final Research Report Summary
SEISMIC DESIGN PROCEDURES FOR SOIL-STRUCTURE INTERACTION
| Project/Area Number |
07044154
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Joint Research |
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| Research Field |
構造工学・地震工学
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| Research Institution | OKAYAMA UNIVERSITY |
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Principal Investigator |
TAKEMIYA Hirokazu Okayama University, Environmental and Science, Professor, 環境理工学部, 教授 (10026156)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIMURA Akira Japan Railway Research Institute, Earthquake Engineerin, Senior Researcher, 主任研究員
CHOUW Nawawi Okayama University, Environmental and Science, Lecturer, 環境理工学部, 講師 (70274016)
KONSTANTIN M アーヘン工科大学, 静的動的構造研究所(ドイツ国), 教授
GUNTHER Schm ルール大学, 動的シミュレーション研究所(ドイツ国), 教授
SCHMID Gunther Ruhr University, Dynamic Simulation Institute, Professor
MESKOURIS Konstantin Aachen Technical University, Static and Dynamic Structural Institute, Professor
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| Project Period (FY) |
1995 – 1997
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| Keywords | Fault rapture / Soil amplification / Underground structures / Vibration reduction measures / Nonlinear response / Bridge structures / Damage factor / Ultimate seismic safety |
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| Research Abstract |
(1) In order to investigate the inland type earthquake motions, fault rapture mechanics is analyzed by applying the dislocation theory to layred ground. The simulation results are compared with the observation data of past strong motions. Derived is the features of inland type ground motions.
(2) Seismic wave amplification is investigated for the alluvium soil in view of the irregular boundary with the diluvium. The wave interference mechanism is clarified in connection with Kobe case.
(3) In view of the impulsive ground motions in Hyogoken Nanbu Earthaquqake, certain impulse loads are applied to RC structures in order to interpret the stress transmission within the constitutive concrete members. The possibility of tensile stress failure is stressed.
(4) Bridge piers are analyzed with attention to the nonlinear behavior of the reinforced concrete members as well as of the soiles. Dynamic soil-structure interaction is taken into account for the response evaluation. The seismic damage factors are assessed in terms of the ductility and repetition of hysteretic mechanism.
(5) Underground structures are analyzed by taking account of the nonlinear characteristic of the neighboring soil.
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