On the Discussion of the Damping Reduction Factors in the Constant Acceleration Region for ATC-40 and FEMA-273
Journal
Earthquake Spectra
Journal Volume
19
Journal Issue
4
Pages
1001-1006
Date Issued
2003
Author(s)
Abstract
According to the ATC-40 (1996) and FEMA-273 (1997) documents, the damping reduction factors for the constant acceleration range of the design response spectra are larger than those for the constant velocity range of those. This trend is contrary to the results obtained from several recent studies and may lead to underestimates of the high-damped design response spectra. This paper points out the issue and suggests further examinations of the factor in the constant acceleration region with potential revision to design practice.
Other Subjects
Buildings; Damping; Deformation; Earthquakes; Energy dissipation; Equations of motion; Seismology; Spectrum analysis; Stiffness; Constant acceleration regions; Damping reduction factors; Structural design; acceleration; damping; earthquake engineering; seismic design; seismic response; structural analysis; structural response
Type
review