As a first step for the development of an energy-based procedure for seismic design and verification, establishing seismic demand in the form of absorbed energy spectra for an inelastic single- degree-of-freedom system was the main objective of this research. The absorbed energy ( Ea), not the input energy or hysteresis energy, was selected as the key demand parameter because it is not only related to the yield strength but also directly attributed to the damage of the structure.
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February 1, 2000
Chou, C., & Uang, C. (2000). An Evaluation of Seismic Energy Demand: An Attenuation Approach, PEER Report 2000-04. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA.