How to Calculate response modification factor?
response modification factor calculator uses response modification factor=1.2*seismic coefficient for short period structures/(seismic response coefficient*fundamental period^(2/3))
to calculate the response modification factor, The response modification factor formula calculates the response modification factor when we have a prior info of factors affecting it like fundamental period, seismic coefficient for short period structures etc.
. response modification factor and is denoted by R symbol.
How to calculate response modification factor using this online calculator? To use this online calculator for response modification factor, enter seismic coefficient for short period structures (C_{v}), seismic response coefficient (C_{s}) and fundamental period (T) and hit the calculate button. Here is how the response modification factor calculation can be explained with given input values -> 1.202E-5 = 1.2*1/(1*31556952^(2/3))
.