DuctilityDemandSpectrum

Purpose

determines the ductility demand spectrum for given acceleration history

Synopsis

mu = DuctilityDemandSpectrum (Acceleration,Ry,T,zeta)

Description

DUCTILITYDEMANDSPECTRUM determines the ductility demand spectrum for given acceleration history
  MU = DUCTILITYDEMANDSPECTRUM (ACCELERATION,RY,T,Z)
  the function determines the ductility demand spectrum for a given acceleration history in
  data structure ACCELERATION with fields Deltat (time step size) and Value (acceleration value)
  and for given yield strength reduction factor(s) in row vector RY;
  the periods for the spectrum are specified in row vector T ( default= [0.001 0.1:0.1:5] );
  the row vector ZETA contains the damping ratio(s) ( default=0 )
  the ductility demand values for the periods in row vector T are returned
  in array MU with the row number corresponding to the period and
  the column number to the yield strength reduction factor

Cross-Reference Information

This function calls:

• InelSDOF_Newmark inelastic response of SDOF system to acceleration history with Newmark’s method
• LSDOF_Newmark determines the response of linear SDOF system to acceleration history with Newmark’s method