Energy Based System Identification Using Quick-Release Experiments Conference Paper uri icon


  • This study presents a time-domain system identification method which is used to identify nonlinear hysteretic properties of isolation bearings installed in seismically isolated bridge structures from quick release experiments. The method utilizes a computational model of the bridge and an optimization technique to minimize an objective function which ensures the energy balance within the structural system at any given instant of time. It is shown that in the proposed method that the objective function is an algebraic quantity which does not require the solution of nonlinear second-order differential equations of motion. Hence, computational effort is minimal. Copyright ASCE 2004.

name of conference

  • Advanced Technology in Structural Engineering

published proceedings

  • Advanced Technology in Structural Engineering

author list (cited authors)

  • Pekcan, G., Chen, S. S., & Mander, J. B.

citation count

  • 1

complete list of authors

  • Pekcan, Gokhan||Chen, Stuart S||Mander, John B

publication date

  • April 2000