WRS-BTU Seismic Isolator Performances  

Oleh:

Brancati, Renato ; Di Massa, Giandomenico ; Pagano, Stefano ; Rocca, Ernesto ; Strano, Salvatore

Jenis: Article from Books - E-Book
Dalam koleksi: Transactions on Engineering Technologies: Special Volume of the World Congress on Engineering 2013, page 149-162.
Topik: Ball transfer unit; Hysteresis; Nonlinear dynamics; Seismic isolators; Shake-table test; Wire rope springs
Fulltext: 12_978-94-017-8831-1_Brancati_Di Massa_Pagano.pdf (995.32KB)

Isi artikel

This paper describes an experimental investigation conducted on WRS-BTU seismic isolators that are constituted by a wire rope spring coupled with a ball transfer unit. The device can be considered rigid along the vertical direction while the horizontal stiffness can be independently chosen to shift the natural period away from the period range having the most of earthquake energy. Two kinds of tests were carried out: the first ones regard the isolator characterization; then, to evaluate the isolation efficiency, a small laboratory structure was equipped with four isolators and several tests on a shake-table were performed.

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