EN 1998 calcualtion Building weight Seismic mass (m) S Tb Tc Td Ref. peak ground accl. (agR) importance factor Design ground accel. (ag) Height of building Ct (for concrete MRF) T1 (=Ct*H^0.75) q (behaviour factor) basic alphaU/alpha1 q (behaviour factor) Sd lambda Fb = lambda*m*Sd Fb as % of seismic mass
80520 8208 1.15 0.2 0.6 2.0 3.0 1.0 3 28.8 0.075 0.93 3 1.3 3.9 1.42 0.85 9929 12.3
kN MT s s s m/s^2 m/s^2 m s
m/s^2 kN %