Design energy input spectra for moderate‐seismicity regions

TLDR

The spectra represent the input‑energy load effect of the most severe earthquake a structure may experience during its lifetime. The paper proposes energy‑input spectra for seismic design of structures in low‑to‑moderate seismicity regions. They are derived from dynamic response analyses of more than 100 ground‑motion records from 48 Spanish earthquakes, include an empirical equation that accounts for damping and plastification, and are compared with the Spanish Seismic Code and recent earthquakes in Turkey and Taiwan. © 2002 John Wiley & Sons, Ltd.

Abstract

Abstract This paper proposes energy input spectra applicable to seismic design of structures located in low‐to‐moderate‐seismicity regions. These spectra represent the load effect, in terms of input energy, of the most severe earthquake that the construction might encounter during its lifetime. The spectra have been derived through dynamic response analyses of over 100 ground motion records obtained from 48 earthquakes that have occurred in Spain. An empirical equation for estimating the energy input contributable to damage from the total input energy is also suggested. This equation takes into account both the damping and the degree of plastification of the structure. Finally, the proposed design energy input spectra are compared with the provisions of the current Spanish Seismic Code and with the response spectra of recent earthquakes that have occurred in Turkey and Taiwan. Copyright © 2002 John Wiley & Sons, Ltd.