000012128 001__ 12128
000012128 005__ 20141205160022.0
000012128 04107 $$aeng
000012128 046__ $$k2008-10-12
000012128 100__ $$aXie, Junju
000012128 24500 $$aA Measure of Drift Demand for Earthquake Ground Motions Based on Timoshenko Beam Model

000012128 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012128 260__ $$b
000012128 506__ $$arestricted
000012128 520__ $$2eng$$aA new measure of demands for earthquake ground motion is presented. It is base on a continuous Timoshenko beam model. While considering the effect of nonuniform distribution of drift demands along the building height and taking into account the coupling effect of bending and shear distortion on the vibration of cantilever beam structures, the drift spectrum leads to more accurate estimations of drift demand for earthquake ground motions. This continuous model is compared with the combined flexural-shear beam model proposed by Miranda. Similar to the model proposed by Miranda, the dynamic properties of the cantilever Timoshenko beam model are highly influenced by a parameter called the height-width ratio. A formula is given to indicate the relation of height-width ratio with lateral stiffness ratio. The effects of height-width ratio, damping and higher modes on drift demands are examined.

000012128 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012128 653__ $$aearthquake, drift demands, ground motion, Timoshenko theory, cantilever beam.

000012128 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012128 720__ $$aXie, Junju$$iWen, Zengping
000012128 8560_ $$ffischerc@itam.cas.cz
000012128 8564_ $$s334730$$uhttps://invenio.itam.cas.cz/record/12128/files/05-01-0182.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0182.
000012128 962__ $$r9324
000012128 980__ $$aPAPER