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The Advanced Hazards Mitigation Laboratory has facilities for
experiments in structural, earthquake and control
engineering for both research and educational purposes.
Currently the bench-scale laboratory (located in Brown
Building 292B) is operational (Click HERE
for live video feed from the bench-scale laboratory). The laboratory is in the
developmental phase and more extensive facilities are
anticipated to come on line within the next few years
(including a medium-scale seismic simulator expected to be
operational by Fall 2004.
This page contains brief descriptions of the equipment in
the Advanced Hazards Mitigation Laboratory.
Medium-Scale
Seismic Simulator
The medium-scale uniaxial seismic simulator will be a 2m x 2m
table capable of +-4g with a 1000 kg payload and maximum
frequency of 30 Hz. Construction is well underway and the
table is scheduled for completion by December 2005.
Bench -Scale
Seismic Simulator
The bench-scale seismic simulator has a 46 x 46 cm slip-table
driven by a ball-screw mechanism with an operating frequency
of 0-20 Hz, a +-7.6cm stroke and a peak acceleration +-1g with a 11.3
kg payload. The equipment provided by Quanser Consulting Inc.
is the same equipment provided to the NSF sponsored
University Consortium on Instructional Shake Tables (UCIST).
Sensors
Sensors include capacitive and ICP accelerometers, force transducers, torque
transducer, strain gauges, and LVDTs.
Spectrum
Analyzer
The PI has a data acquisition system that consists of a
Spectral Dynamics Siglab 20-42 portable lab-quality dynamic
signal and system analyzer. The Siglab 20-42 has 4 input and
2 output channels and operates over a range of 0-20 kHz. The
system software includes a function generator, oscilloscope,
spectrum analyzer, network analyzer, virtual swept-sine,
system identification and long record capture and interfaces
with MATLAB.
Test Equipment
Testing equipment include a modal impact hammer, and
calibration system both donated by PCB.
Test
Structures
Test structures include a prototype nonlinear portal
frame test structure and multiple 2- and 3-degree-of-freedom
flexible shear and flexural building models.
Control
Devices
Semiactive control devices include multiple shear mode
magnetorheological dampers and associated MRF-336AG and
MRF-132AD magnetorheological fluid donated by the Lord
Corporation.
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