Stability analysis of elastomeric bearings in bridge structures

Abstract Elastomeric bearings (EB) and lead-rubber (LRB) are used in bridge structures to reduce vehicle vibrations, wind loads, earthquakes. Therefore, studying their stability is crucial ensuring the of system itself. Building upon previously proposed linear partially nonlinear models, two fully models suitable for EBs LRBs this paper. The developed adequately account interaction between horizontal vertical loads effect on bearing’s performance. This study considers that do not always act isolation can significantly affect overall behavior stability. Comparisons with experiments demonstrated could accurately replicate seismic isolators. Additionally, analytical predict stiffnesses as a function critical buckling load. mathematical readily be incorporated into open-source structural analysis software, such OpenSees.