000011341 001__ 11341
000011341 005__ 20141205155901.0
000011341 04107 $$aeng
000011341 046__ $$k2008-10-12
000011341 100__ $$aPettinga, Didier
000011341 24500 $$aAccounting for P-Delta Effects in Structures When Using Direct Displacement-Based Design

000011341 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011341 260__ $$b
000011341 506__ $$arestricted
000011341 520__ $$2eng$$aAs part of the development of Direct Displacement-Based Design, a method for explicitly including P-∆ in the design process is presented. The differences in sensitivity to P-∆ of both elasto-plastic (approximating steel response) and stiffness degrading (reinforced concrete) hysteresis are discussed, from which a proposed multiplicative factor is derived to account for the enhanced performance of reinforced concrete structures. The derivation and an example the parametric behaviour of the proposed factor is presented here, following which a four-storey frame designed for both reinforced concrete and steel response is tested using non-linear response history analysis with a suite of seven spectrum-compatible ‘massaged’ real records. It is found that the proposed account for P-∆ satisfactorily reduces the storey drift amplifications, such that the design performance targets are maintained at the original level when second-order effects are not included in the analyses. Design recommendations are also presented based on simplifications to the derived equation through the assumption of reasonable values for typical new structures.

000011341 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011341 653__ $$aP-Delta, non-linear response, reinforced concrete, hysteresis, displacement-based design

000011341 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011341 720__ $$aPettinga, Didier$$iPriestley, Nigel
000011341 8560_ $$ffischerc@itam.cas.cz
000011341 8564_ $$s332924$$uhttps://invenio.itam.cas.cz/record/11341/files/05-01-0216.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0216.
000011341 962__ $$r9324
000011341 980__ $$aPAPER