Structural Dynamics and Control Laboratory


When designing new roads and highways, understanding and quantifying the performance of different unbound bases, sub-base materials and bound materials (asphalt layer) is of key importance.

The Dynamic Triaxial Testing machine supplied by GDS is an apparatus combining a triaxial cell with a dynamic actuator capable of applying load, deformation and stresses of up to 20Hz. The permanent deformation tests can be carried out in the CIE dynamic lab using this dynamic triaxial apparatus on specimens with 150 mm and 100 mm diameters. In this testing machine, the axial axis is screw-driven from an integral base unit housing the motor drive. Axial force and axial deformation are applied through the base of the cell. The environmental chamber is capable of controlling the temperature of specimens ranging from -20°C to 60°C.

The system would also have the capability to log the data obtained from the various sensors. In addition, the capability of this apparatus has been extended to cover the Indirect Tensile Test for Resilient Modulus of Asphalt.

The software module included in this apparatus is a desirable accessory to enhance the capability of the machine. This option will unlock the full functions of the machine and allow the user to define square, triangular and other custom waveforms.

Frequency: 20 Hz
Maximum Dynamic load: 20 kN
Temperature range: -20°C to 60°C
Confining pressure: 2 MPa
Loading frame: for up to 50 kN load


There are two mid-size open-architecture single-axis Quanser shake tables at CIE, which together can be used as a 2D earthquake simulator and therefore suitable for structural dynamics, vibration isolation, feedback control, and other control topics related to earthquake, aerospace and mechanical engineering. Users can generate sinusoidal, chip as well as pre-loaded acceleration profiles of real earthquakes, such as Northridge, Kobe and El-Centro, to study their effects on buildings, bridges and various materials.

Please direct any structural research and testing enquiries to:

Professor Bijan Samali