NEHRP Clearinghouse

Title
Seismic Energy Based Fatigue Damage Analysis of Bridge Columns. Part 2. Evaluation of Seismic Demand.
File
PB95181806.pdf
Author(s)
Chang, G. A.; Mander, J. B.
Source
National Center for Earthquake Engineering Research, Buffalo, NY.; Federal Highway Administration, Washington, DC.; National Science Foundation, Arlington, VA.; New York State Science and Technology Foundation, Albany., June 1, 1994, 150 p.
Abstract
This is the second part of a two-part series on the Seismic Energy Based on Fatigue Damage Analysis of Bridge Piers. This second part deals with the determination of energy and fatigue demands on bridge columns. A smooth asymmetric degrading hysteretic model is presented, capable of accurately simulating the behavior of bridge piers. The model parameters are determined automatically by using a system identification routine integrated into a computer program OPTIMA. The program can use either real experimental data or simulated experiment results from a reversed cyclic loading Fiber Element analysis.
Keywords
; Damage assessment; Earthquake engineering; Seismic design; Bridge piers; Reinforced concrete; Finite element analysis; Computer applications; Mathematical models