2001 Fiscal Year Final Research Report Summary
Evaluatin of the seismic performance for transportation systems
| Project/Area Number |
12480111
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Natural disaster science
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
KAMEDA Hiroyuki Kyoto University, Disaster Prevention Research Institute, Professor, 防災研究所, 教授 (80025949)
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| Co-Investigator(Kenkyū-buntansha) |
TANAKA Satoshi Kyoto University, Disaster Prevention Research Institute, Associate Researcher, 防災研究所, 助手 (90273523)
NOJIMA Nobuoto Gifu University, Dept. of Civil Engineering, Associate Professor, 工学部, 助教授 (20222200)
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| Project Period (FY) |
2000 – 2001
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| Keywords | Highwav system / Fragilitv functions / Flow-dependent index / Reconstruction process / Restoration method |
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| Research Abstract |
It is well known that the seismic performance of transportation systems plays key rolls for the post-earthquake emergency management. It needs to be evaluated from both physical and functional view points. This research deals with the fragility functions that can be used for post-earthquake management of transportation systems where both space and time factors are relevant.
This research developed a methodology for evaluating the seismic fragility function that takes both physical and functional aspects into account, and carried out an example analysis for the Hanshin expressway. The basic data that describe physical and functional characteristics of the highway system under the 1995 Hyogoken-Nanbu earthquake was provided by Hanshin Expressway Public Cooperation. This research (1) constructed the GIS-based damage database and developed the seismic fragility functions for the highway bridges ; (2) summarized the recovery and reconstruction process and developed the fragility function of the bridge reconstruction ; (3) established a methodology for estimating OD values under the disaster condition.
In addition, for evaluating the post-earthquake highway system recovery, (4) the database for the process of the recovery and reconstruction works was developed, and based on that, the recovery time was calculated by bridge type.
The functions developed in this study evaluate both physical and functional aspects of the seismic performance for highway systems and are used to demonstrate for estimating seismic losses due to earthquakes.
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