Abstract

Some simplified 1-degree-of-freedom (1-dof) constitutive models suitable for the simulation of high damping rubber bearings are analyzed. The well-known equivalent elastic and bilinear models are compared with a version of the Davidenkov-Martin law modified by the authors. The seismic behavior of an isolated structure is analyzed using the different models and the results are compared. The predictions obtained by means of the proposed law are also compared with experimental snap-back test results.

1.
Bonacina, G., Zola, M., and Casirati, M., 1989, “Prove dinamiche su isolatori elastomerici ad elevato smorzamento,” Doc. ISMES Spa REL-DPD 775/89.
2.
Fujita, T., 1989, “Seismic Isolation Rubber Bearings for Nuclear Facilities,” Proceedings, SMiRT 10 Post Conference Seminar, San Francisco, CA, Aug.
3.
Giuliani, G. C, 1989, “Structural and Practical Requirements for the Design of Seismically Isolated Buildings,” Proceedings, International Meeting on Base Isolation and Passive Energy Dissipation, Assisi, Universita` degli Studi Di Perugia, pp. 15.01–15.17.
4.
Kausel
E.
, and
Roe¨sset
J. M.
,
1984
, “
Soil Amplification: Some Refinements
,”
Soil Dynamics and Earthquake Engineering
, Vol.
3
, No.
3
, pp.
116
123
.
5.
Kelly
J. M.
,
1990
, “
Base Isolation: Linear Theory and Design
,”
Earthquake Spectra
, Vol.
6
, No.
2
, pp.
223
244
.
6.
Martelli, A., et al., 1990, “R&D Studies at ENEA in Support to the Application of Seismic Isolation to the Innovative Nuclear Reactor,” Proceedings, ANS/ENS International Fast Reactor Safety Meeting, Snowbird, U.S.A.
7.
Martin, P. P., and Bolton Seed, H., 1978, “MASH, A Computer Program for the Non-linear Analysis of Vertically Propagating Shear Waves in Horizontally Layered Deposits,” Report UCB/EERC 78/23, University of California, Berkeley, CA.
8.
Sano`, T., and Di Pasquale, G., 1990, “Modellazione del legame costitutivo di isolatori in gomma armata,” Ingegneria Sismica, No. 2, pp. 36–41.
9.
Sano`, T., 1977, “Smorzamento Modale per Strutture Composite,” CNEN RT/PROT(77)26.
10.
Taijirian, F. F., and Kelly, J. M., 1988, “Testing of Seismic Isolation Bearings for Advanced LMR PRISM,” Proceedings, Pressure Vessels and Piping Conference, ASME PVP-Vol. 147.
11.
Tsai, N. C, 1974, “Modal Damping for Soil-Structure Interaction,” ASCE Journal of Engineering Mechanical Division, Vol. 100, No. EM2.
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