Approximate Analysis and Design Tools

  • P. Gergely
  • C. Meyer
Part of the International Centre for Mechanical Sciences book series (CISM, volume 346)


Dynamic analysis generally implies the calculation of the time-history response (usually displacements and member forces). The response spectrum method of analysis is sometimes also used as a dynamic analysis method, because the response is computed in terms of mode shapes, although that is not dynamic analysis in a strict sense. Dynamic time history analysis of linear systems is now a practical and reliable analysis procedure. However, the analysis of nonlinear systems involves many difficulties and uncertainties and therefore is not yet recommended for routine use. The hysteretic properties of RC elements are functions of many different variables and difficult to reproduce analytically, as discussed in Chapter 2. The response of nonlinear systems can be very sensitive to the properties of the ground motion input. That means that in practice several possible inputs need to be selected and a nonlinear analysis performed for each. The unknown characteristics of future earthquakes adds to the uncertainties met in doing nonlinear analyses.


Base Shear Spectral Acceleration Pushover Analysis Reinforce Concrete Frame Roof Displacement 
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Copyright information

© Springer-Verlag Wien 1998

Authors and Affiliations

  • P. Gergely
    • 1
  • C. Meyer
    • 2
  1. 1.Cornell UniversityIthacaUSA
  2. 2.Columbia UniversityNew YorkUSA

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