Analytical formulas of the mechanical behavior of rubber bearings considering the isolator nonlinearities and the influence of shear modulus

Kalfas, Konstantinos N.; Forcellini, Davide

doi:10.1016/b978-0-323-88530-0.00005-2

Cited by 1 publication

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“…In particular, Forcellini et al, and Kalfas and Forcellini [25,33] considered the mechanisms induced by the large deformations and the postbuckling behavior of EBs by developing the original model by Koh and Kelly, Kelly, and Kelly and Takhirov [2,41]. This study proposes 3D numerical simulations and presents the results developed by Kalfas et al [42,43], where the microscopic model of EBs to assess the role of the shear modulus, Gb, is reproduced. In section 2 the 3D numerical models are described, while the role of the shear modulus, Gb, the relative rotation, θ, and the applied axial compressive load, P, is investigated in section 3, buy comparing with the analytical model proposed by Forcellini and Kelly [40].…”

Section: Introductionmentioning

confidence: 99%

3d Numerical Simulations of Multi-Layered Elastomeric Bearings (Eb) Subjected to Combined Vertical and Horizontal Loads

Forcellini,

Kalfas

2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Multi-layered elastomeric bearings (EB) have been applied in structural engineering as a mitigation solution for improving the seismic resilience of structural configurations. Such devices have been extensively verified for different loading conditions with laboratory tests and numerical simulations during the last decades. However, their behavior under the mutual effect of axial and shear load is still under assessment. This paper presents the results of 3D numerical simulations of EBs when subjected to large horizontal movements by considering the role of the shear modulus. The paper considers several numerical models of EBs. The main goal is to implement the proposed analytical formulation to numerical platforms that can describe the combined axial -shear macroscopic behavior of the EBs.

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