Dept.of Civil and Env.Eng.;
Rice Univ;
Houston;
TX 77005 USA Associate Professor;
Dept.of Civil and Env.Eng.;
Rice Univ;
Houston;
TX 77005 USA Graduate Student;
USC; hospital; building; base; isolation; least; squares; system; identification; time; segments; reduced; order; observer; Northridge; earthquake;