000018278 001__ 18278
000018278 005__ 20170118182215.0
000018278 04107 $$aeng
000018278 046__ $$k2017-01-09
000018278 100__ $$aLuca, Flavia De
000018278 24500 $$aEc8 Design Through Linear Time History Analysis Versus Response Spectrum Analysis €“ Is It An Enhancement for Pbee?

000018278 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018278 260__ $$b
000018278 506__ $$arestricted
000018278 520__ $$2eng$$aEurocode 8-conforming design of a 12-storey Reinforced Concrete building is carried out through Response Spectrum Analysis (RSA) and Linear Time History Analysis (LTHA). RSA is the reference design method; it accounts for higher modes effects through an approximate combination of modal results, and the input is characterized by a smoothed response spectrum. On the other hand, assessment of structures in the Performance Based Earthquake Engineering framework is primarily carried through Nonlinear Time-History Analysis, selecting sets of accelerograms. LTHA as design methodology allows direct comparison of linear and nonlinear response between design and assessment phases with the same set of accelerograms. This approach decouples the linear-nonlinear modelling problem from the spectrum-accelerogram input selection problem. This preliminary study investigates whether the Eurocode 8-design process is affected by the change in the linear analysis methodology; i.e., LTHA in lieu of RSA, and how the force-based design should be implemented when using LTHA. Two 12-storey RC archetype buildings are designed for different ductility classes. Spectrum-compatible accelerograms provide conservative results and similar design outcome for RSA and LTHA. Moreover, the high variability of LTHA results can be an issue since Eurocode 8-record selection does not provide restraints on the standard deviation of the input. LTHA has also a great potential as methodology for the assessment of approximate fragility curves for intermediate level of damage (excluding collapse), serviceability limit states and for bespoke analyses for near source conditions. The target is to come up with a robust methodological procedure both force-based and displacement-based to promote this method as option in future versions of Eurocode 8.

000018278 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018278 653__ $$aLinear Time-History Analysis, Response Spectrum Analysis, EC8 Design, RC Moment Resisting Frame

000018278 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018278 720__ $$aLuca, Flavia De$$iLombardi, Luca
000018278 8560_ $$ffischerc@itam.cas.cz
000018278 8564_ $$s891972$$uhttps://invenio.itam.cas.cz/record/18278/files/1155.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1155.
000018278 962__ $$r16048
000018278 980__ $$aPAPER