A Review of Seismic Response Spectra, Time History Analysis and Energy Method
Abstract
The long period components of strong ground motion of earthquakes have significant influence on super highrise buildings and large span structures. Yet it cannot be evaluated by the normal dynamic equations based on acceleration parameters due to the limitation of response spectra for seismic design of buildings. In this paper, the availability of using velocity and displacement spectra for seismic design has been studied with the applicability of time history analysis of structures put forward. The theory of energy method and its practical value are also discussed. Finally, a new approach is suggested for analyses of the seismic response and damage criterion based on the relation between instantaneous energy of earthquake actions and maximum displacements of the structural response.
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