Analytical Model of Lead Rubber Bearings Based on Full-Scale Dynamic Loading Tests

Key Points

• This research aims to develop an analytical model for lead rubber bearings that considers temperature and strain rate effects.
• Proposed a model accounting for lead's processing hardening and recovery based on Arrhenius law.
• Conducted full-scale dynamic tests on lead rubber bearings with a diameter of 1300 mm.
• Validated model predictions against experimental results across varying frequencies and amplitudes.
• The model accurately replicates experimental data with high fidelity under different dynamic conditions.
• Demonstrated the model's capability to reflect temperature increases from repeated loading on lead plugs.
• Indicated potential application of the model for similar viscoelastic materials.