000019080 001__ 19080
000019080 005__ 20170118182258.0
000019080 04107 $$aeng
000019080 046__ $$k2017-01-09
000019080 100__ $$aSpoerer, German
000019080 24500 $$aDynamics of a Multiple Building Base Isolated System

000019080 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019080 260__ $$b
000019080 506__ $$arestricted
000019080 520__ $$2eng$$aIn multiple-building real state complexes, where seismic protection needs to be delivered to all structures, individual isolation may bring a series of construction difficulties. An alternative, is to create a large isolated concrete slab, on which all structures are built, delivering seismic protection to all of them, including common areas and connections. This concept has already been implemented and delivers diverse construction benefits; however, the behavior of each structure differs greatly from its response with individual isolation and this aspect has not been studied in proper depth. The objective is to characterize the dynamic behavior of a multiple-building base-isolated system subject to spatial motion by identifying its equivalent modal properties and analyzing its non-linear response. To do this, a simplified case of two structures was adopted and several configurations were simulated through a 3D numerical model, which considered the non-linear hysteresis of isolators and the possibility of structures undergoing non-linear incursions in addition. All simulations were complemented with a modal analysis of the system. Results indicate that there is a significant interaction between the two structures, caused mainly by the influence of higher modes, in which each structure has an effect on the kinematic of the isolation system. That is to say, the modal response of one structure depends on the parameters of adjacent buildings. As a consequence, common isolation of two dissimilar structures could lead to a significant increase in their displacements or interstory drift. The magnitude of this interaction depends principally on building distribution, structure properties (mainly their period and mass difference) and analysis direction.

000019080 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019080 653__ $$amultiple-building; common isolation; fragility.

000019080 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019080 720__ $$aSpoerer, German$$iDechent, Peter
000019080 8560_ $$ffischerc@itam.cas.cz
000019080 8564_ $$s1950300$$uhttps://invenio.itam.cas.cz/record/19080/files/2805.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2805.
000019080 962__ $$r16048
000019080 980__ $$aPAPER