Multi-directional motions, including two orthogonal translations (X and Y-axis) and in-plane rotation.
A payload of 13 kips (5.9 tons) at 1g acceleration.
Table platen size of 6 ft × 6 ft.
Maximum table motions of ±7 in. (X-axis) and ±10 in. (Y-axis).Peak velocities of 51 inch/sec (X-axis) and 29 inch/sec (Y-axis).
The multi-directional shake table can can be linked to multiple experimental test beds and nonlinear analytical substructures that model the remaining part of a structural system and its foundation system to perform real-time hybrid simulations that concurrently use the shake table and the test beds.
Control and Acquisition
A real-time integrated control architecture with software that is identical to that of the Lehigh NHERI Experimental Facility multi-directional real-time hybrid simulation integrated control system, enabling real-time multi-directional shake table hybrid simulations to be performed.
Servotest Systems Pulsar Real-time Integrated Control System operating at 2048Hz
32 channel high speed Pacific Instruments Data Acquisition System
Use Case Scenarios
Real-time hybrid simulation of a 2-story reinforced concrete structure with a next-generation rotary friction damper subject to earthquake ground motions scaled to the MCE hazard level.
Characterization testing of a shape memory alloy-friction damper
Characterization testing of a nonlinear viscous damper
Characterization testing of a next-generation rotary friction damper
Characterization testing of a shape memory alloy-friction damper at elevated temperatures using heating elements and cold temperature chamber
3-D Real-time hybrid simulation of a tall building with tuned mass rotary friction damper subjected to a 700 year MRI 110 mph wind storm.
Real-time hybrid simulations of floor isolation systems (RII Track-4:Quantifying Seismic Resilience of Multi-Functional Floor Isolation Systems through Cyber-Physical Testing (OIA 1929151), PI - Scott Harvey, University of Oklahoma)