Vibration and seismic analysis

Design safer, more resilient structures with confidence

Structures experience not only static loads, but dynamic loadings every day, from human movement and machinery to the extreme effects of earthquakes.

With growing demand for vibration checks, especially in workplaces, hospitals, laboratories, and public spaces, engineers need reliable software that adheres to international standards. Oasys GSA supports a wide range of global codes, giving you confidence that your analysis meets project and regulatory requirements.

The use of stronger materials combined with refined design methods means you can create lighter structures, however these can still be subject to vibrations from everyday use, such as the occupant’s movements or vibrating machinery.

Stadium - footfall analysis

Why vibration and seismic analysis matters

Everyday footfall, rhythmic movement, and machinery can introduce vibrations that affect how a building feels and performs. Clients increasingly request footfall vibration analysis to ensure comfort for staff, occupants, and visitors.

In sensitive environments, such as laboratories, research centres, and hospitals, excessive vibration can compromise safety, disrupt operations, or affect the accuracy of scientific equipment.

Seismic events impose rapid and intense dynamic loads. Oasys GSA models excitations from earthquakes as load cases, allowing engineers to evaluate displacement, predict performance, and design for resilience.

Footfall analysis

Response Spectrum Analysis

Traditionally, engineers employ Response Spectrum Analysis (RSA) to design buildings and structures capable of withstanding earthquakes. A satisfactory RSA is a global compliance requirement for building regulations.

Using the Finite Element Method in GSA, you can model structures and predict the forces these structures must resist. The modal analysis options available in GSA find and return only the eigenvectors that capture the most interesting behaviour for the parts you are interested in. This approach not only improves accuracy but also significantly reduces memory usage and computational time compared to existing methods.

Footfall and modal analysis GSA models

Discover how GSA can enhance your vibration and seismic analysis workflows

GSA structural vibration and seismic analysis software gives engineers the tools to understand and predict how structures will respond under these conditions, helping you design safer, lighter, and more efficient buildings.

Speak to us about our vibration and seismic analysis software