000011049 001__ 11049
000011049 005__ 20141205155830.0
000011049 04107 $$aeng
000011049 046__ $$k2008-10-12
000011049 100__ $$aMorfidis, Konstantinos E.
000011049 24500 $$aEffects of Seismic Directivity Within the Framework of the Lateral Force Procedure

000011049 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011049 260__ $$b
000011049 506__ $$arestricted
000011049 520__ $$2eng$$aIn the present paper the influence of the seismic incident angle on the longitudinal steel reinforcement of R/C buildings within the context of the lateral force method of analysis is investigated. According to current seismic codes the horizontal static seismic forces are applied along the structural axes of the building, provided that can be clearly identified. In an extensive parametric study a wide range of buildings (symmetric, asymmetric, with or without orthogonal arrangement of their resisting elements) have been analysed and their response is computed due to the simultaneous action of the two horizontal seismic components for a series of different angles of seismic incidence. It is proved that, in general, different orientations of the seismic action may lead to differences of up to 29% concerning the required longitudinal steel reinforcement. The only case in which the structural response does not depend on the loading direction is that of structures which fulfill the criterion ΤB<Τα<ΤC for any value of α, where α is the angle of incidence, Τα is the uncoupled fundamental period of the structure along the α-direction and TB, ΤC are the lower and upper limits of the constant spectral acceleration branch.

000011049 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011049 653__ $$aSeismic analysis, Lateral Force Procedure, seismic directivity

000011049 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011049 720__ $$aMorfidis, Konstantinos E.$$iAthanatopoulou, Asimina M.$$iAvramidis, Ioannis E.
000011049 8560_ $$ffischerc@itam.cas.cz
000011049 8564_ $$s266929$$uhttps://invenio.itam.cas.cz/record/11049/files/08-02-0009.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 08-02-0009.
000011049 962__ $$r9324
000011049 980__ $$aPAPER