Lin, Y.-Y.Y.-Y.LinTsai, M.-H.M.-H.TsaiChang, K.-C.K.-C.ChangKUO-CHUN CHANG2019-12-202019-12-20200387552930https://scholars.lib.ntu.edu.tw/handle/123456789/437375https://www.scopus.com/inward/record.uri?eid=2-s2.0-0346305992&doi=10.1193%2f1.1623784&partnerID=40&md5=00a73f347658cb5bc1ca8e2c988c5120According 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.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 responsereview10.1193/1.16237842-s2.0-0346305992https://www.scopus.com/inward/record.uri?eid=2-s2.0-0346305992&doi=10.1193%2f1.1623784&partnerID=40&md5=00a73f347658cb5bc1ca8e2c988c5120