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SD-Lecture01-Intro-Seismic-Hazards

SD-Lecture01-Intro-Seismic-Hazards - CEGCEG-5065C Soil...

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CEG CEG-5065C Soil Dynamics 5065C Soil Dynamics Lecture #01 Introduction to Earthquake Engineering Luis Prieto-Portar 2009

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Earthquake engineering studies the effects of earthquakes upon people and their structures, and the methods that reduce these effects. The Chinese and Japanese have written records of earthquakes for over 3,000 years. However, it is only during the past 40 years that engineers have developed the theories needed to mitigate some of their damage. The field of earthquake engineering combines knowledge from: - geotechnical engineering , - geology , - mathematics , - geophysics/seismology, - structural engineering and - risk analysis . Several billion humans live in seismic zones of considerable risk. Every ten minutes, the Earth experiences an earthquake, albeit usually of small magnitude. The cost of earthquake damage is counted in the hundreds of billions of dollars per year. Earthquakes have occurred on Earth for billions of years, and will continue for several more. Our job as engineers, is to first identify the level of risk, and then economically mitigate most of the hazards.
The purpose of this course is to identify the most common problems that engineers encounter in the field of soil dynamics or earthquake engineering. These include, 1. Seismic induced ground movements and wave propagation; 2. Design of foundations for heavy or vibrating machinery; 3. Analyze the changes of the bearing capacity of foundations under dynamic loads; 4. The change in load capacity of deep foundations under dynamic loads; 5. Analyze the changes of settlement behavior due to dynamic loads; 6. Increased lateral earth pressures due to dynamic loads; 7. Determine the potential for a soil to “liquefy” when subjected to dynamic loads; 8. Determine the potential for collapse of earth embankments under dynamic loads.

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SD-Lecture01-Intro-Seismic-Hazards - CEGCEG-5065C Soil...

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