MODELING OF ELASTOMERIC DEVICES IN THE DYNAMIC LINEAR AND NONLINEAR RANGE

A hysteretic model able to simulate the behavior of elastomeric devices for seismic base isolation is presented. The model is an extension of the Wen's model which has been modified in order to introduce a dependency of some coefficients on the achieved shear deformation, so that the shape of the hysteretic cycles of the high damping rubber device is reproduced with suitable precision at all amplitude of deformation. A comparison with experimental data from shaking table tests and with other typical modelings (equivalent viscous model and Bouc-Wen's model) has been carried out to prove the adequacy and advantages of the proposed model. The comparison has shown a satisfactory agreement between the numerical simulation provided by the proposed model and the experimental response both for low and for high deformations, thus overcoming the drawbacks typical of the hysteretic models existing to date.

• Corporate Authors:

  Multidisciplinary Center for Earthquake Engineering Research

  State University of New York, 107 Red Jacket Quadrangle, P.O. Box 610025
  Buffalo, NY  United States  14261-0025
• Authors:
  • De Luca, A
  • Faella, G
• Conference:
  • Proceedings of the U.S.-Italy Workshop on Seismic Protective Systems for Bridges
  • Location: Columbia University, New York, NY
  • Date: 1998-4-27 to 1998-4-28
• Publication Date: 1998-11-3

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 351-369

Subject/Index Terms

• TRT Terms: Deformation; Earthquake resistant design; Elastomers; Seismicity; Structural design
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00779891
• Record Type: Publication
• Report/Paper Numbers: MCEER-98-0015
• Contract Numbers: DTFH51-92-C-00106
• Files: TRIS
• Created Date: Dec 22 1999 12:00AM