Department of Civil Engineering Structures Laboratory
The Structures Laboratory has a floor area of 162 square metres and is
well equipped for testing various structural components under static
and cyclic loading.
Typical experiments that are undertaken regularly as part of the
curriculum for the Bachelor of Civil Engineering program include
tensile, shear, and compression testing of steel and timber structural
assemblies. Additionally, BCIT faculty members preform experimental
research in the lab on a wide range of topics.
The structural lab is currently equipped with the following testing
facilities and instruments. It also contains a 2-tonne capacity gantry
crane.
Reaction frame and associated testing equipment
including actuators, hydraulic pump and control
system
The reaction frame is equipped with 4 actuators
including one 25kip, two 50kip and one 100kip
actuator which can be used for monotonic or cyclic
loading of beams, columns, walls, etc. These
actuators are controlled hydraulically using a
HYSECO hydraulic pump and a MOOG hydraulic control
system. The actuators can be configured to run under
a force control or displacement control mechanism.
The shake table, manufactured by QUANSER, is a
mid-size single-axis earthquake simulator ideal for
demonstrating the concepts of structural dynamics,
vibration isolation and other structural control
topics related to earthquake loading. Users can
generate sinusoidal acceleration profiles or real
earthquake records to be simulated by the shake
table. A two level frame is mounted on the platform.
Accelerometers located at each level can measure and
display response of the structure under the applied
earthquake record.
Tinius Olsen L200 Universal Testing Machine
This long bed model has a capacity of 1000 kN, and
can be configured for test specimens up to 3.6m in
length and 2.0m in height. The machine is most
commonly used for flexural testing of beams and
monitoring load, strain and deflections. Data from
sensors like strain gauges and LVDTs is acquired
and presented by National Instruments hardware and
software(LabVIEW).
Baldwin Wiedermann Universal Testing Machine
This UTM is capable of applying up to 530 kN of load
and is mostly used for testing steel coupons under
tension to determine the material properties of
steel. A dedicated National Instruments data
acquisition system allows students to view the
stress/strain relationship in real time as the test
specimen is loaded.
Tinius Olsen L60 Universal Testing Machine
This UTM is used for testing small timber and steel
specimens under axial loading. It can apply up to
250 kN of load. Short timber specimens are tested
for compressive and shear strengths. Quarter inch
diameter steel bar is tested in single and double
shear.
National Instruments data acquisition system(DAQ)
National Instruments(NI) DAQ is used throughout the
civil laboratories. NI hardware(SCXI, X and M Series
DAQ cards) and software(MAX and LabVIEW) is used,
allowing dozens of gauges and low voltage
transducers to be simultaneously monitored in real
time. MAX and LabVIEW simplify the task of
preparing, converting and displaying the eletrical
signals of sensors and transducers.
Tinius Olsen EMT20 Axial Testing Machine
This axial loading machine is used primarily for
testing long slender timber sections to demonstrate
buckling.