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Published byGilbert Hancock Modified over 9 years ago
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The Role of Building Codes in Delivering Seismic Performance John Hooper Director of Earthquake Engineering Magnusson Klemencic Associates
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Over 220,000 fatalities Over 300,000 homes damage/destroyed Over 1.5 M people affected No Building Codes M W 7.0
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M W 8.8 Under 500 fatalities Displaced population: 800,000 Estimated damage: $30B US Building Codes Similar to US
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Performance of Chilean Buildings Post 1985 Buildings that collapsed: 4 (approximately) Buildings to be demolished: 50 (estimated) Number of buildings 3+ stories: 9,974 Number of buildings 9+ stories: 1,939 Failures of 3+ stories: 0.5% Failures of 9+ stories: 2.8%
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Life Safety Performance
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Seismic Design Codes – based on USGS National Seismic Hazard Map
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Summary Building Codes (and their enforcement) make a difference Continued Code updates are essential Analysis Physical Research Earthquake Reconnaissance Is Life Safety Performance adequate?
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