2. Know your performance objectives before you push the building.
•No building can be displaced to infinity without damage.
•Since the objective of push-over analysis to assess the status of building and its components in a damaged state, it is of paramount importance to understand the specific performance objectives desired for the building.
•Performance objectives such as collapse prevention, life safety, or immediate occupancy have to be translated into technical terms such as: (a) a given set of design spectra, and (b) specific limit states acceptable for various structural components when subjected to the seismic demand embodied in these design spectra.
•A push-over analysis without a clearly defined performance objectives is of little use.