ANSYS Tutorial: Earthquake analyses in workbench Do you want to perform earthquake analyses according to design codes or just i to verify your structure? The current article describes in great detail two dif approaches; the static (response specter) and the transient approach Introduction: Earthquake analyses can be performed by applying different procedures. The mo popular procedure is the Response Spectrum analysis (RS-analysis). The RS-ana cheap to use in terms of numerical costs as it is based on modal results. Ho spectrum solution can only sho positi!e results" i.e. positi!e stresses and only records the ma#imum amplitudes for each mode and the superposition of th results in turn ill gi!e the positi!e results. $nother procedure is to perform a full transient analysis of the earthquake. are computational e#pensi!e. Hoe!er" they ill gi!e results based on the dyn equation of equilibrium and hence both positi!e (tensile) and negati!e (compr stress results ill be reported for the full length of the earthquake. %n thi structure ill be used to sho ho such analysis can be run in $&S'S orkbench