000011290 001__ 11290
000011290 005__ 20141205155856.0
000011290 04107 $$aeng
000011290 046__ $$k2008-10-12
000011290 100__ $$aPapagiannopoulos, G.A.
000011290 24500 $$aSeismic Inelastic Design of Steel Structures by Spectrum Analysis and Equivalent Damping

000011290 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011290 260__ $$b
000011290 506__ $$arestricted
000011290 520__ $$2eng$$aThis paper presents a new method for the seismic design of steel structures. The method involves the use of equivalent modal damping for predefined deformation limits and spectrum analysis and modal synthesis for the calculation of the design base shear of the structure. All the work of dissipation due to material and geometric nonlinearities is converted into work of dissipation due to linear damping. Design curves providing equivalent damping ratios as functions of period for the first few modes as well as design accelerations as functions of period for given equivalent damping are constructed using numerical data coming from a large number of plane steel moment resisting frames excited by various long duration seismic motions. The proposed design procedure is illustrated by means of the seismic design of a steel moment resisting framed structure and is checked by means of non – linear inelastic dynamic analysis. It is concluded that the presented design method can be viewed as a more rational and effective alternative of the force based method of current seismic codes with equivalent modal damping values playing the role of the behaviour or strength reduction factor.

000011290 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011290 653__ $$aEquivalent modal damping, seismic design, steel structures, spectrum analysis 

000011290 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011290 720__ $$aPapagiannopoulos, G.A.$$iBeskos, D.E.
000011290 8560_ $$ffischerc@itam.cas.cz
000011290 8564_ $$s246297$$uhttps://invenio.itam.cas.cz/record/11290/files/05-05-0038.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-05-0038.
000011290 962__ $$r9324
000011290 980__ $$aPAPER