Shake table tests of gravity well-inspired double friction pendulum systems under Bi-directional ground motions

Key Points

• Shaking table tests reveal improved seismic response for double friction pendulum systems under bi-directional ground motions.
• The systems demonstrated up to 30% reduced maximum displacements with increased friction coefficients during seismic simulations.
• Using shaking table experiments, key parameters were evaluated for their impact on the performance against ground motion.
• These findings highlight potential design optimizations for seismic isolation systems, improving structural safety in earthquakes.