What Is Nonlinear Static (Pushover) Analysis?
Pushover (the ASCE 41 — the NSP; the nonlinear static) pushes (the lateral — the monotonically; the target's — the displacement) the model (the hinges' — the nonlinear; the backbone's) to the performance (the IO/LS/CP — the acceptance's; the criteria's). The analysis: the target (the displacement's — the coefficient's), the hinges' (the modeled — the ASCE 41's), and the curve (the capacity's — the demand's; the ADRS's). The seismic's — the nonlinear static.
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How pushover works
The load (the lateral — the pattern's; the first mode's — the uniform's), the hinges (the nonlinear — the beams'/columns'; the backbone's — the ASCE 41's), the target (the displacement's — the C0-C3; the coefficient's), and the curve (the pushover's — the capacity; the ADRS's — the demand).
The method
The coefficient (the ASCE 41's — the C0's-C3's; the target's), the spectra (the ADRS's — the demand; the damped's), the acceptance (the IO/LS/CP — the hinge's; the rotations'), and the limitations (the higher mode's — the missed; the tall's — the NRHA's).
Applications
The evaluation (the existing's — the Tier 3; the ASCE 41's), the retrofit (the designed — the verified; the performance's), the new (the PBSD's — the screened; the tall's — the NRHA's), and the peer (the reviewed — the independent's). The pushover is the practical nonlinear — the hinges pushed, the performance checked.
The bottom line
Run pushover per ASCE 41 (nonlinear hinges, coefficient-method target displacement, ADRS demand) for seismic evaluation/retrofit — use nonlinear response-history for tall buildings where higher modes matter.
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