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Modes of Building Failure Connections between failure modes observed in shake table testing of models in building contest and earthquake damage to actual.

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Presentation on theme: "Modes of Building Failure Connections between failure modes observed in shake table testing of models in building contest and earthquake damage to actual."— Presentation transcript:

1 Modes of Building Failure Connections between failure modes observed in shake table testing of models in building contest and earthquake damage to actual buildings L. Braile, Purdue University, October 2003 (for additional information and sources see EQ Hazards and Photos links at: http://www.eas.purdue.edu/~braile/indexlinks/educ.htm)http://www.eas.purdue.edu/~braile/indexlinks/educ.htm

2 Intensity of shaking decreases with distance from epicenter (MM Intensity scale). M6.7, 1994 Northridge, California earthquake

3 Intensity of shaking decreases with distance from epicenter (Peak horizontal acceleration). M6.7, 1994 Northridge, California earthquake

4 Intensity of shaking decreases with distance from epicenter (star; USGS Shake Map). M6.7, 1994 Northridge, California earthquake

5 Soft first story failure

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7 Weak story failure, Kobe, 1995

8 Building shifted off foundation

9 Column failure

10 Bending

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12 Inadequate connection to uprights

13 High center of mass, resonance

14 Falling objects

15 Falling objects, partial wall collapse

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17 Liquefaction, ground failure

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