000018978 001__ 18978
000018978 005__ 20170118182252.0
000018978 04107 $$aeng
000018978 046__ $$k2017-01-09
000018978 100__ $$aTait, Michael
000018978 24500 $$aExperimental Study on the Response of Fiber Reinforced Elastomeric Isolators (Frei) Under Combined Loading

000018978 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018978 260__ $$b
000018978 506__ $$arestricted
000018978 520__ $$2eng$$aThe objective of seismic isolation is to decouple the superstructure from earthquake induced ground motions. The introduction of properly designed low horizontal stiffness elements between the superstructure and the foundation, which are capable of carrying the vertical loads to the foundation, can significantly reduce the seismic demand and seismicinduced damage. Numerous isolation systems have been developed for this purpose. Fiber reinforced elastomeric isolators (FREI) are a relatively new type of reinforced elastomeric isolator. A unique feature of FREI is that individual isolators of any plan geometry can be rapidly cut from a large pre-manufactured sheet. FREI are typically categorized as either bonded (B-FREI) or unbonded (U-FREI). Early investigations have revealed that U-FREI can effectively protect a structure and its non-structural components from moderate and strong seismic events. Although both the vertical and lateral response of UFREI have been investigated experimentally, few tests have been carried to evaluate the influence of rotational deformations on the vertical and lateral response of U-FREI. This paper reports on an experimental investigation of the response of UFREI under combined vertical, lateral and rotational deformations. The experimental program was conducted using a 3 degree-of-freedom test apparatus. Based on findings from the experimental tests, the paper offers recommendations for the design and manufacture of U-FREI.

000018978 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018978 653__ $$aseismic isolation; fiber-reinforced; elastomeric; rotational deformation; bridges application;

000018978 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018978 720__ $$aTait, Michael$$iTorrie, Mark$$iAl-Anany, Yasser
000018978 8560_ $$ffischerc@itam.cas.cz
000018978 8564_ $$s947320$$uhttps://invenio.itam.cas.cz/record/18978/files/2616.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2616.
000018978 962__ $$r16048
000018978 980__ $$aPAPER