VARIETY OF RHEOLOGICAL MODELS USED IN THE ISOLATION OF THE BASE FOR EARTHQUAKE CHALLENGED CONSTRUCTIONS

Polidor BRATU

Abstract


There are presented the results of the researches performed for the optimization of the base isolation systems for residential buildings, bridges and viaducts. Thus, there were analyzed the types of elastomeric anti-seismic devices and fluid viscous damper which, through a suitable connection system, can ensure the isolation degree of over 95%. For this purpose, there were assessed the possibilities of the viscous-elastic isolation systems for the seismic prone regions in Romania. The paper presents the possible variants with the results of the assessment calculation of the dynamic isolation parameters

 


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Dobrescu, C., The rheological behaviour of stabilized bioactive soils during the vibration compaction process for road structures, 22th International Congress on Sound and Vibration, Florence, Italy, 12-16.07.2015

Dobrescu, C.F. Highlighting the Change of the Dynamic Response to Discrete Variation of Soil Stiffness in the Process of Dynamic Compaction with Roller Compactors Based on Linear Rheological Modelling. Appl. Mech. Mater. 2015, 801, 242–248

Dobrescu, C.F.; Brăguţă, E. Optimization of Vibro-Compaction Technological Process Considering Rheological Properties. In Springer Proceedings in Physics, Proceedings of the 14th AVMS Conference, Timisoara, Romania, 25–26 May 2017; Herisanu, N., Marinca, V., Eds.; Springer: Berlin/Heidelberg, Germany, 2017; pp. 287–293.

Dobrescu C.F), Study concerning bearing assessment of natural and stabilized soils using binders with ecological benefits based on parametric correlations, Romanian Journal of Materials 2017, 47 (1), 112 -116 (Factor de impact 0,612), 2017

Dobrescu C. F., Brăguță E., Dynamic modelling of vibro-compaction process on cohesionless granular soils In Acoustics and Vibration of Mechanical Structures May 25- 26, 2017 -Timișoara, Romania;

Forrest, James A., Free-free dynamics of some vibration isolators, Annual Conference of the Australian Acoustical Society, 13-15 Nov. 2002, Adelaide, Australia

Kim Young- Sang, Study on the effective stiffness of base isolation system for reducing acceleration and displacement responses, Journal of Korean Nuclear Society, vol.31, No. 6, pp. 586-594, Dec. 1999

Kyu-Sik Park, Sang-Won Cho, In-Won Lee, A comparative study on aseismic performances of base isolation systems for multi-span continuous bridge, 14th KKNN Symposium on Civil Engineering, November 5-7, 2001, Kyoto, Japan

Mitu, A.M., Sireteanu, T., Ghita, G., Passive and Semi-Active Bracing Systems for Seismic Protection: A Comparative Study, Romanian Journal of Acoustics and Vibration, Volume: 12 Issue: 1 Pages: 49-56, 2015

Pinarbasi, Seval, Konstantinidis Dimitrios, Kelly, James M., Seismic isolation for soft-story buildings, 10th World Conference on seismic isolation, energy dissipation and active vibrations control of structures, Istanbul, Turkey, May 28-31, 2007

Potirniche, A., Assessments Regarding Effective Configurations of Vibration Isolators Based on Displacements Analysis, Romanian Journal of Acoustics and Vibration, Volume: 12 Issue: 2 Pages: 126-131, 2015

Sireteanu, T., Smart Suspension Systems, Romanian Journal of Acoustics and Vibration, Volume: Issue: 1 Pages: 2-2, 2016

Stanescu, N.D., Vibrations of a Shell with Clearances, neo-Hookean Stiffness, and Harmonic Excitations, Romanian Journal of Acoustics and Vibration, Volume: 13 Issue: 2 Pages: 104 -111, 2016

Vasile, O., Active Vibration Control for Viscoelastic Damping Systems under the Action of Inertial Forces, Romanian Journal of Acoustics and Vibration, Volume: 14 Issue: 1 Pages: 54-58, 2017

Xi-Yuan Zhou, Miao Han, Lin Yang, Study on protection measures for seismic isolation rubber bearings, ISET Journal of Earthquake Technology, Paper no.436, vol.40, no.2-4, June-December 2003, pp 137-160


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