Seismic Testing

TRaC continues to develop its offering of consultancy and testing within the field of seismic design, development and qualification testing.

Seismic Qualification with TRaC

In partnership with the Bristol Earthquake Engineering Laboratory (BEELAB), at Bristol University, since 2005, TRaC has qualified a broad range of equipment and systems to meet the seismic qualification and earthquake testing requirements of diverse industries in a variety of seismically active countries around the world.

The Process of Earthquake Testing 

Typically, TRaC will partner with Companies, from the initial tendering stage of a project, providing technical and commercial advice. In many instances, this involves working with the Design Authority to produce a relevant and practical seismic Qualification Test Plan (QTP), which may involve Finite Element Analysis, Physical Testing or a combination of both. Once the QTP has been approved, TRaC has a team of highly qualified and experienced analysis and test engineers that will provide an assured and timely qualification of a new or developed product, using a range of state of the art finite element analysis software and the most comprehensive seismic test facility in the UK.

Our Seismic Test Facilities 

The earthquake test facility (shown above), is a 3m by 3m shaking table which can carry a payload of up to 15 tonnes. Eight actuators can accelerate the platform to over 4g simultaneously in the horizontal and vertical directions with corresponding displacements of up to 300 mm (pk-pk). The table has full, active control of all six degrees of freedom of motion to give the greatest flexibility and control over tests.  Digital vibration controllers and control software developed by BEELAB, enable single axis, biaxial and triaxialearthquake tests to be carried out in accordance with an extensive range of national and international standards.

Typical Seismic Test Standards 

Standard(s) Scope
Telcordia GR-63-Core
ETSI EN 300 019-2-3
ETSI EN 300 019-2-4
Telecommunication applications
BS EN 60068-3-3
BS EN 60255
BS EN 61166
General commercial applications
BNFL ET 372 Specific to Sellafield
ANSI/IEEE 344
ANSI/IEEE 693
ANSI/IEEE 382
ANSI/IEEE 323
Nuclear and Electrical Power Industries