Simple Damage Predictors for Large-Scale Seismic Risk Mapping

by C. J. Turkstra, Polytechnic Univ, United States,
H. -J. Kim, Polytechnic Univ, United States,
M. Grigoriu, Polytechnic Univ, United States,
S. Rahman, Polytechnic Univ, United States,

Abstract: Although it is now recognized that there is a risk of moderate seismic activity in the Eastern United States, many existing buildings were not designed for earthquake forces. To evaluate alternative public policies, earthquake hazard maps for eastern cities showing levels of damage with various probabilities of occurrence would be useful. The purpose of the preliminary study described in this paper is to evaluate alternative, very simple seismic damage predictors that could be used to assess large groups of structures. Existing simple predictors, which have been validated only for major earthquakes are reviewed and applied to two buildings in New York City. The buildings are also analyzed using conventional equivalent static and linear dynamic analysis in an effort to establish a basis for damage prediction for moderate events.

Subject Headings: Seismic effects | Damage (structural) | Seismic tests | Mapping | Linear analysis | Risk management | Earthquakes | Concrete structures | Public health and safety | North America | United States | New York | New York City

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