000018874 001__ 18874
000018874 005__ 20170118182245.0
000018874 04107 $$aeng
000018874 046__ $$k2017-01-09
000018874 100__ $$aHesam, Pedram
000018874 24500 $$aEstimating Equivalent Viscous Damping in Reinforced Concrete Buildings Responding To Earthquake Ground Motions

000018874 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018874 260__ $$b
000018874 506__ $$arestricted
000018874 520__ $$2eng$$aUse of constant damping ratio, often at 2% or 5% level of critical damping, is common in the design and analysis of reinforced concrete buildings. Using an empirical method that extracts both the capacity curve and the effective viscous damping from actual strong motion response data recorded in buildings, we show that the effective viscous damping ratio in low to mid-rise RC buildings responding at their dominant mode (equivalent of fundamental mode in linear systems) varies linearly with the inverse of the effective period. We demonstrate the method using acceleration records obtained in an actual 7-story RC building intensely shaken and damaged during earthquakes. The consequences of the observed variation of damping ratio versus the constant damping ratio that is assumed in the current practice of RC building design are discussed and illustrated using the 7-story RC building as a testbed.

000018874 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018874 653__ $$aeffective viscous damping; reinforced concrete buildings; energy dissipation; inelastic response

000018874 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018874 720__ $$aHesam, Pedram$$iIrfanoglu, Ayhan$$iHacker, Thomas J.
000018874 8560_ $$ffischerc@itam.cas.cz
000018874 8564_ $$s270696$$uhttps://invenio.itam.cas.cz/record/18874/files/2393.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2393.
000018874 962__ $$r16048
000018874 980__ $$aPAPER