CA PE Seismic Exam Terms 1) 2) 3) 4) Chapter 1 Chapter 2 Chapter 3 Chapter 4 a) Seismic factors i) Response modification coefficient, R (1) Ductility of system ii) System overstrength factor, Ω0 (1) Max force = Ω0 (design force) iii) Deflection amplification factor, πΆπ