Abstract
In the scenarios of structure retrofit or bridge application, elastomeric bearings may be placed on top of columns or piers. These implementations result in a flexible boundary condition and the end-plates of the bearings may experience rotation. Experimental studies show that the end-plate rotation will affect the behavior of elastomeric bearings. In this paper, a new macroscopic model is developed for predicting the horizontal behavior of elastomeric bearings under end-plate rotation. The force equilibrium and deformation compatibility equations of the new model are derived, followed by the elaboration of its numerical implementation. Furthermore, the predictive capacity of this new model is validated by comparison with previous test data and numerical results. The application of this new model is demonstrated through a dynamic analysis example of a single-degree-of-freedom system. The results show that the macroscopic model will be promising to serve as an alternative approach to account for the effect of end-plate rotation.
Published Version
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