000018655 001__ 18655
000018655 005__ 20170118182234.0
000018655 04107 $$aeng
000018655 046__ $$k2017-01-09
000018655 100__ $$aAmadio, Claudio
000018655 24500 $$aBehaviour of Non and Partially Re-Centering Structures Under Repeated Ground Motions

000018655 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018655 260__ $$b
000018655 506__ $$arestricted
000018655 520__ $$2eng$$aThe self-centering capacity of a structure after a seismic event is an important feature of a well-designed seismic-resistant building. For this reason, self-centering isolators and/or dampers systems have been widely used recently to ensure this behavior in structures built in earthquake-prone areas. Another main issue related to a good seismic design is the resilience of the building when subjected to a seismic sequence, which may cause a significant accumulation of damage and the loss of the structure. In this work, the effect of repeated ground motions on structures with different hysteretic behavior is studied using nonlinear Single Degree of Freedom (SDOF) systems. Extensive dynamic analyses were carried out for natural ground motion sequences, namely sequences of more than one natural seismic record. Systems with different dissipative hysteretic laws, linear and non-linear damping behavior were considered with the aim to emphasize the difference in cumulated damage and seismic response. In addition, the re-centering capability of the structures after a ground motion was analyzed since hysteresis behaviors with strong post-earthquake residual deformations may lead to downtime and an unacceptable condition for the building. Some simple design rules for buildings in seismic areas subjected to repeated earthquakes are finally given.

000018655 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018655 653__ $$aRe-centering structures, Repeated ground motions, SDOF, Non-linear damping, Hysteretic behavior

000018655 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018655 720__ $$aAmadio, Claudio$$iFragiacomo, Massimo$$iRinaldin, Giovanni
000018655 8560_ $$ffischerc@itam.cas.cz
000018655 8564_ $$s816294$$uhttps://invenio.itam.cas.cz/record/18655/files/1928.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1928.
000018655 962__ $$r16048
000018655 980__ $$aPAPER