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INFORMATION NETWORK FOR EARTHQUAKE DISASTER MITIGATION IN DEVELOPING COUNTRIES

XIX INTERNATIONAL SYMPOSIUM IN HONOR OF PROFESSOR YUJI ISHIYAMA. INFORMATION NETWORK FOR EARTHQUAKE DISASTER MITIGATION IN DEVELOPING COUNTRIES. Dr. Taiki SAITO Chief Researcher, IISEE Building Research Institute Tsukuba, Japan.

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INFORMATION NETWORK FOR EARTHQUAKE DISASTER MITIGATION IN DEVELOPING COUNTRIES

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  1. XIX INTERNATIONAL SYMPOSIUM IN HONOR OF PROFESSOR YUJI ISHIYAMA INFORMATION NETWORK FOR EARTHQUAKE DISASTER MITIGATION IN DEVELOPING COUNTRIES Dr. Taiki SAITO Chief Researcher, IISEE Building Research Institute Tsukuba, Japan

  2. INTERNATIONAL TRAINING PROGRAM ON SEISMOLOGY AND EARTHQUAKE ENGINEERING History 1960～ Training project started. 1962～ IISEE was established in BRI. 1963～ Joint project with UNESCO 1972～ The project was continued by JAPAN. 2005～ Master Degree for regular course participants. Training Courses Regular Course Global Seismological Observation Course Individual Course Field Seismology, Earthquake Engineering And Disaster Mitigation Global Seismological Observation Seismology Earthquake Engineering Period 12 months 2 months Arbitrary 20 10 5 Max. Members

  3. 1,164 participants from 89 countries Seismology Course Earthquake Eng. Course Administration 94 Research Inst. 51 74 University Private 68 Company Others 9 Unknown 101 0 50 100 150 200

  4. Background Severe earthquake damage in developing countries Weak social and economical bases Lack of technical information for earthquake disaster mitigation In order to disseminate technical information Training for seismologists and earthquake engineers Transfer of technical information Algeria Earthquake 5/21,2003, BBC News

  5. Survey Results of Ex-participants’ Perceptions 59 49 Through the IISEE Continue training program 48 46 Technical cooperation between nations International research cooperation 40 46 Through the Internet Serve as information center Journals and technical papers 33 46 Award degrees 32 Attend international workshop 39 Conduct seminar 30 26 New training course Individual network 10 7 Others Others 0 20 40 60 0 20 40 Preferred way of continuous information acquisition? What do you expect on IISEE? (Unit: person, multiple answer allowed) (Unit: person, multiple answer allowed)

  6. IISEE-nethttp://iisee.kenken.go.jp/net/index.htm • Internet-based system designed to disseminate a variety of technical information regarding seismology and earthquake engineering. • Free Web site to find technical information about seismic networks, the strong motion observatory network, seismic damage archives, seismic design codes, and microzonation data of developing countries. • Technical information on IISEE-net was obtained mainly through the International Training Program on Seismology and Earthquake Engineering and its ex-participants. • IISEE-net works not only as a system to disseminate technical information, but also as an forum for interactive information exchange among research institutes and researchers in developing countries.

  7. IISEE-net

  8. Seismic Network • Based on country reports by the ex-participants, the Web site provides information on approximately 50 earthquake-prone countries about their seismic networks, seismic activity, tectonics, and macrozonation. Example: COLOMBIA Tectonics Seismic Network Seismic Activity

  9. Seismic Damage • List of damaging earthquake and its characteristics • Country report for earthquake damage • Distribution of after shocks, fault mechanism, wave propagation analysis List of Damaging Earthquake Search Engine Source Rupture Process (Colima, Mexico Earthquake)

  10. Seismic Design Code • Seismic design codes of approximately 45 developing countries. • A summary of the Japanese Building Standard Law • European code and ISO information. Example: MEXICO Design Spectrum Seismic Design Force Zone Factor

  11. Microzonation • Microzonation project reports are reported from several countries focusing on their metropolitan areas. • Seismic Intensity, liquefaction, building damage, etc. Example: IRAN Microzonation of Teheran Estimated Seismic Intensity

  12. IISEE-nethttp://iisee.kenken.go.jp/net/index.htm

  13. PROSPECTS OF IISEE-NET Seismic network Strong motion network Historical earthquake damage reports Seismic design codes Microzonation IISEE net Two-way information exchange with developing countries through the internet Promotion of the utilization of accumulated information Course materials Individual training report Materials for the presentation etc. International Training Programs on Seismology and Earthquake Engineering Interrelated projects and research Hypocenter determination Tomography etc. Focal mechanism Fault model Distribution of aftershocks etc. Cooperation in seismic analysis Publication of earthquake information

  14. Earthquake Damage Estimation System for Buildings Shortly After Earthquake In Preparation Seismic observation Strong motion observation on site Geology, tectonics, seismic activities IISEE NET Source characteristics Source Source characteristics Assumed earthquake Promotion of the utilization of accumulated information Transmission characteristics Earthquake motion/ engineering bedrock Earthquake motion/ engineering bedrock Wave Transfer Estimation of amplification characteristics Earthquake motion/ ground surface Estimation of soil-structure interaction Input to building Estimation of response characteristics Response of building Estimation of damage Building Response Damage of building Estimation of the cost of reinforcement and repair probable countermeasures

  15. Earthquake Damage Estimation Methodologies ~ Before the Earthquake Estimation Methodologies ~ Required Input/ Output Data ~ Flowchart Grade I (Rough Estimation) Grade II Grade III (Detail) Geology, Tectonics, EQ Activity Geology, Tectonics, Seismic Activity and HIstory of Earthquakes and History of Active Faults 1. Study Scenario Earthquake Scenario Earthquake Hypocenter, Magnitude Hypocenter, Magnitude and Active Fault Parameters 2. Transmission Characteristic [ Experimental Law of Attenuation ] [Wave Analysis (1 Dimensional Model)] Input Earthquake Motion Seismic Intensity Map Acceleration, Velocity Soil Condition of Surface Response Spectrum Soil Condition of Surface 3. Amplification Characteristic [ Amplification Factor ] [Response Analysis (1 Dimensional)] Response of Surface Ground Acceleration Map, Velocity Map Response Spectrum Condition of Foundation 4. Soil ~ structure Interaction [ Modify Natural Period, Damping Ratio ] [ Neglect the Effect ] [ Neglect the Effect ] Design Seismic Force Seismic Intensity Structural Conditions Acceleration, Velocity Structural Conditions Response Spectrum Design Details 5. Structural Response Characteristic [Analysis of Wall Amount] {Analysis of Seismic Force] [Response Analysis (Linear)] Seismic Index (Wall Amount) Seismic Index (Base Shear Force) Seismic Index (Sectional Stress/ Strain) Response of Building [Damage Function] [Check of Capacity] [Damage Function] 6. Study Damage Probability Damage Description ( Qualitative) Damage Description ( Quantitative) Damage Description (Much Quantitative) Damage of Building 7. Study Effectiveness of Measures Measures and Cost (Qualitative) Measures and Cost (Quantitative) Measures and Cot (Much Quantitative) Measures and Cost

  16. Earthquake Damage Estimation Methodologies ~ After the Earthquake Estimation Methodologies ~ Required Input/ Output Data ~ Grade I (~ several hours) Grade II (~ several days) Grade III ( several days ~ ) Flowchart Earthquake Observation Observed Wave Record Observed Wave Record Observed Wave Record 1. Determine EQ Characteristic Source Parameters Source Parameters Source Inversion Method Hypocenter, Magnitude and Fault Mechanism and Source Rupture Process Earthquake Characteristics 2. Transmission Characteristic Experimental Law of Attenuation Wave Analysis Seismic Intensity Map Acceleration, Velocity Soil Condition of Surface Response Spectrum (Wave) Soil Condition of Surface Input Earthquake Motion 3. Amplification Characteristic Amplification Factor Response Analysis Observation Data of Acceleration, Velocity Observation Data of Earthquake Ground Motion Strong Motion Observation Acceleration, Velocity Structural Conditions Response Spectrum (Wave) Design Details Response of Surface Ground 4. Soil ~ Structure Interaction Earthquake Force to Buildings Same as “before earthquake” 5. Response Characteristic Structural Response 6. Study Damage Probability Structural Damage 7. Study Effectiveness of Measures Measures and Cost

  17. Example of Estimation Methodologies Seismic Source Source Before Earthquake Grade 1 Step 1. Go to IISEE-net web site Step 2. Search damaging earthquake from Catalog Ex.) Search parameters: casualty > 1,000

  18. Example of Estimation Methodologies Wave Transmission

  19. Example of Estimation Methodologies Attenuation Law (Excel Software)

  20. Damage State • None, slight or moderate • Extensive • Partial collapse • Complete collapse Example of Estimation Methodologies Building Vulnerability (GESI Method) Rating Scheme Quality of design (0-3) Quality of construction (0-3) Quality of materials (0-1)

  21. Conclusions IISEE NET Earthquake Damage Estimation System for Buildings (EDES-B) will provides Manual and Database of methodologies Promotion of the utilization of accumulated information

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