000011354 001__ 11354
000011354 005__ 20141205155902.0
000011354 04107 $$aeng
000011354 046__ $$k2008-10-12
000011354 100__ $$aPique, Javier R.
000011354 24500 $$aEffective Rigidity of Reinforced Concrete Elements in Seismic Analysis and Design

000011354 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011354 260__ $$b
000011354 506__ $$arestricted
000011354 520__ $$2eng$$aSeismic analysis and design of reinforced concrete structures are performed based on linear response, however it is universally accepted that under severe earthquakes inelastic response and cracking is accepted. Therefore element properties should reflect this condition and inertias of beams and columns should be reduced accordingly. Several procedures are suggested to considered effective rigidity: Priestley (2003), ACI 318S-05, FEMA 356, Paulay and Priestley (1992). In this work the convenience to consider the effective stiffness of elements is demonstrated. However since there is not a uniform criteria, a comparison of these procedures was performed. Most world seismic standards do not establish effective stiffness for seismic analysis, although all of them accept inelastic incursions. Therefore it is useful to find a common or reasonable criterion to reduce inertias. Priestley (2003) procedure is applied to find the effective rigidity of elements, which are dependent on element strength. A direct consequence of reduced inertias is larger elastic displacements. On the other hand seismic standards specify displacements are computed by factoring elastic displacements from analysis, therefore using reduced inertias a substantial increase of estimated displacements would occur produced turning analysis into over conservative.

000011354 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011354 653__ $$aEffective Stiffness, seismic analysis, member properties, lateral displacements.

000011354 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011354 720__ $$aPique, Javier R.$$iBurgos, Maribel
000011354 8560_ $$ffischerc@itam.cas.cz
000011354 8564_ $$s273906$$uhttps://invenio.itam.cas.cz/record/11354/files/05-01-0471.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0471.
000011354 962__ $$r9324
000011354 980__ $$aPAPER