NEHRP Clearinghouse

Seismic Energy Based Fatigue Damage Analysis of Bridge Columns. Part 1. Evaluation of Seismic Capacity.
Chang, G. A.; Mander, J. B.
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., March 14, 1994, 239 p.
The study is concerned with the computational modeling of energy absorption (fatigue) capacity of reinforced concrete bridge columns by using a cyclic dynamic Fiber Element computational model. The results may be used with a hysteretic rule to generate seismic energy demand. By comparing the ratio of energy demand to capacity, inferences of column damageability or fatigue resistance can be made. A complete analysis methodology for bridge columns is developed.
; Damage assessment; Seismic design; Energy absorption; Computerized simulation; Mathematical models; Pile structures; Earthquake engineering; Bridge piers; Cyclic loads; Bridge foundations