Abstract We present the results of forced-vibration experiments performed at large-scale prototype structure EuroProteas founded on gravel-rubber mixture (GRM) layers acting as a means Geotechnical Seismic Isolation (GSI). Three GRM with different rubber content per weight (0%, 10%, and 30%) but same mean grain size ratio were used foundation soil. Each GRM-structure system was subjected to har...

In this paper, in addition to introduce a hybrid structural system contained local isolators and dampers, its behavior and functional capabilities were studied on a conventional structure. For this purpose, an RC frame building with six-story was designed based on valid codes and then, in four cases based on the number of spans, it was split into two separate adjacent frames. Base isolation was...

The authors focus on the thermal-mechanical coupled behavior of tin rubber bearings (SnRBs) under cyclic loading. research consists three phases. First, tests providing a large number deformations to SnRBs were performed. Second, an analysis model considering was constructed by combining seismic response and thermal conductivity analysis. Finally, analyses using conducted evaluate dynamic seism...

A series of large-scale experimental tests is conducted on a mass equipped with a hybrid controlled base-isolation system that consists of rolling pendulum system (RPS) and a 20 kN magnetorheological (MR) damper. The 12-ton mass and its hybrid isolation system are subjected to various intensities of nearand far-fault earthquakes on a large shake table. Fuzzy controllers use feedback from displa...

A new intelligent isolation system combining a piezoelectric damper with laminated rubber bearing is proposed. and used in a practical example in this paper, LQR and GPC chose as the control algorithm according to the damper. The characteristic of these two kinds of algorithm is analyzed and is used in the civil engineering vibration controlling. The results of the analysis show the performance...

Abstract—In this paper, a one-dimensional (1d) Parallel ElastoPlastic Model (PEPM), able to simulate the uniaxial dynamic behavior of seismic isolators having a continuously decreasing tangent stiffness with increasing displacement, is presented. The parallel modeling concept is applied to discretize the continuously decreasing tangent stiffness function, thus allowing to simulate the dynamic b...