Department of Civil and Environmental Engineering

Maseeh College of Engineering & Computer Science

Facilities at iSTAR Laboratory
iSTAR Lab cropped

General Laboratory Information

The laboratory is 3600 sq. ft space that includes 1600 sq. ft of strong floor with 100,000 lb tie downs at approximately 4' centers, machine shop and conference area. A balcony overlooks the strong floor.

The laboratory is serviced by a 25 ton overhead crane and has truck access for material and specimen delivery.

The facilities include a strong floor laboratory equipped with dynamic hydraulic actuators and the largest shake table in the Pacific Northwest.

Shake Tables for Seismic and Impact Load Simulation

Horizontal Shake Table:

  • Platform of 10 ft x10 ft with tie downs
  • Payload capacity of 20,000 lb
  • Maximum acceleration of 3g

Vertical Shake Table:

  • Platform of 2 ft x 2 ft with tie downs
  • Payload capacity of 5,000 lb
  • Maximum acceleration of 5g

Hydraulic Actuators and Load Frames

Cyclic and Fatigue Loading:

  • Tension-compression 220,000 lb actuator capable of cyclic and dynamic loads with a 20" stroke
  • Tension-compression 55,000 lb actuator capable of dynamic loads
  • Tension-compression actuator of 110,000 lb cyclic load capacity and 6" stroke
  • Self reacting load frame with hydraulic grips and capacity of 110,000 lb and 6" stroke

Monotonic Loading:

  • Custum load frames with hydraulic jack for up to 700,000 lb capacity and X " stroke
  • Numerous 120,000 lb capacity hydraulic jacks ranging from 3" to 6" stroke

Data Acquisition & Instrumentation
  • Portable 16 channels for field and additional 32 channels of in-laboratory high sample rate data acquisition
  • Instrumentation includes accelorometers, displacement transducers, strain gauges
  • Digital video of tests are also available
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