1. SBST – Core elective: Earthquake Resistant Construction Semester VI Chandra Bhakuni -0594

2. During the semester Introductions Basics of earthquakes History of earthquakes and damaging earthquakes Understanding seismic exposure and loss assessment Seismic analysis; and design and detailing (RCC and Masonry)

3. Basics of Earthquakes Movement of Body Earth diameter — 12,742 km

4. Basics of Earthquakes Plate Tectonics - a theory -

5. Basics of Earthquakes Plate Tectonics wikipedia

6. Basics of Earthquakes Plate Tectonics http://www.abag.ca.gov/bayarea/eqmaps/fixit/ch2/sld003.htm

7. Basics of Earthquakes Plate Tectonics http://www.abag.ca.gov/bayarea/eqmaps/fixit/ch2/sld004.htm

8. Basics of Earthquakes Release of energy from earth’s crust Type of Waves Body Waves (P wave & S wave) Surface Waves Rayleigh waves

9. Basics of Earthquakes Seismic Hazard Global Seismic Hazard Assessment Program (GSHAP) - 1992

10. Basics of Earthquakes India Seismic Risk Zones Bureau of Indian standards IS 1893 (Part 1) - 2002 http://www.iitk.ac.in/nicee/EQTips/EQTip04.pdf

11. Basics of Earthquakes Branch of Structural Dynamics Simplified SDOF ‘equation of motion’ f(t) = ma + kt + cu Or’ f(t) = cu + ků + mϋ F = Shear Force m = Mass k = Stiffness c = damping coefficient a = acceleration T = time period U = displacement

12. Basics of Earthquakes Natural Frequency, f n, Where, f n = Natural Frequency (Hertz ) or (No. of Cycles/Second) k = Element Stiffness (N/m) m = Element Mass (kg) Single degree of freedom (SDoF) oscillator Radian frequency, ω n = 2 π f n

13. Basics of Earthquakes History of Earthquakes Some Big Reported events in last 10 years 2010 04 13 - Southern Qinghai, China - M 6.92010 04 13 - Southern Qinghai, China - M 6.9 Fatalities 2,968Fatalities 2,968 2010 01 12 - Haiti region - M 7.02010 01 12 - Haiti region - M 7.0 Fatalities 222,570Fatalities 222,570 2009 09 30 - Southern Sumatra, Indonesia - M 7.52009 09 30 - Southern Sumatra, Indonesia - M 7.5 Fatalities 1,117Fatalities 1,117 2008 05 12 - Eastern Sichuan, China - M 7.92008 05 12 - Eastern Sichuan, China - M 7.9 Fatalities 87,587Fatalities 87,587 2005 10 08 - Pakistan - M 7.62005 10 08 - Pakistan - M 7.6 Fatalities 86,000Fatalities 86,000 2004 12 26 - Sumatra-Andaman Islands - M 9.12004 12 26 - Sumatra-Andaman Islands - M 9.1 Fatalities 227,898Fatalities 227,898 2003 12 26 - Southeastern Iran - M 6.62003 12 26 - Southeastern Iran - M 6.6 Fatalities 31,000Fatalities 31,000 2001 01 26 - Gujarat, India - M 7.62001 01 26 - Gujarat, India - M 7.6 Fatalities 20,023Fatalities 20,023 http://earthquake.usgs.gov/earthquakes/world/historical.php

14. Next Class History of earthquakes and recording Assignment

15. Explore one interesting point in the history of earthquakes Find the oldest event One page only Submit next week