The aim of the pushover analysis add-on is the determination of pushover curves in nonlinear systems, the calculation of the equivalent bilinear capacity curve and the comparison of the existing and required deformation capacity, taking into account the energy dissipation capacity.
The main features of the 'Pushover Analysis' add-on are:
- Consideration of nonlinear component behavior through plastic standard hinges for steel (FEMA 356 [1 ]) or nonlinear material behavior (masonry, steel)
- Direct import of the masses for constant loads from load cases or load combinations
- User-defined specifications for consideration of the horizontal loads (standardized to the eigenmode or evenly distributed over the height of the masses)
- Determination of the capacity curve with user-defined limit criterion (collapse or limit deformation)
- Transformation of the capacity curve into capacity spectrum (ADRS format, single-mass oscillator)
- Bilinearization of the capacitance spectrum according to EN 1998-1
- Transformation of the applied response spectrum into the required spectrum (ADRS format)
- Determination of the target shift according to EN 1998-1 (N2 method according to Fajfar [2 ])
- Graphical comparison of the capacity and required spectrum
- Graphical evaluation of the acceptance criteria for predefined plastic hinges
- Output of the values used for the calculation of the target shift