The Behaviour of Elastomeric Bearings Under Load Combinations
Tomme: LX (LXIV) Fascicle: 3 | 2014
Pages: 47-54
Abstract text:
This paper presents experimental tests to determine the shear modulus of elastomeric bearings at different values of the vertical force and horizontal displacements. The elastomeric bearings were designed for an experiment on scale models for the shaking table tests. The elastomer had a hardness of 60 Sh A Two sets of tests were carried out. The first was the application of a compressive force on the elastomeric bearings with values between 10,...,60 kN and the applied horizontal displacement with values of 14 mm and 17 mm. For the second test, the compression force was 60 kN and the horizontal displacements were equal to 17 mm, 34 mm and 43 mm. Following the experimental tests, it resulted that the shear modulus of elastomeric bearing has different values depending on the maximum applied displacement. If the vertical force applied to the bearing increases, the shear modulus decreases.
Key Words:
base isolation; shear modulus; hysteresis curves; experimental tests.
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