EQUALS — Earthquake and Large Structures Laboratory

Six degrees of freedom and nearly four decades of seismic qualification testing. Shakes up to 10 tonnes at twice the acceleration of gravity. Enables seismic testing of structural and non-structural systems under realistic actions.

Specifications:

Platform: 3 m × 3 m
Payload: 10 t
Peak acceleration: 2 g
Max frequency: 50 Hz
Peak displacement: ±150 mm

The shaking table sits within a reinforced concrete cell whose strong floor and strong walls double as reaction systems for static and pseudo-dynamic testing of large structures.

Specifications:

Anchoring channels: Every 1 m, floor & walls
Actuators capacity: 25 kN - 50 kN
Anchor capacity: up to 25 kN/m
Laboratory height: 16 m

Four APS420 electromagnetic shakers deliver controlled dynamic excitation for structural and component testing. They enable vibration, resonance, fatigue, and modal analysis studies, supporting investigations into dynamic response, structural behaviour, and vibration control.

Specifications:

Peak force: 900 N
Stroke: 150 mm peak-to-peak
Frequency range: DC–200 Hz
Shaker weight: 140 kg