PERFORMANCE BASED SEISMIC-Hamburger reduced - Code...

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1 Limit permissible drifts under specified forces Require buildings have complete structural systems Code Procedures Require systems have sufficient strength to resist specified forces Require members and connections be “detailed” prescriptively
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2 Building Codes Imply Performance Ability to resist frequent, minor earthquakes without damage Ability to resist infrequent, moderate earthquakes with limited structural and nonstructural damage Ability to resist worst earthquakes ever likely to occur without collapse or major life safety endangerment 100 yrs 500 yrs 2,500 yrs Performance is not guaranteed
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