User Defined Acceleration Spectra

ProtaStructure automatically calculates the elastic and design acceleration spectra according to
international seismic codes, using a highly parametric UI that encapsulates the code-specific parameters
in a user-friendly manner, enabling users to customize them to fulfill their project requirements.

In addition to this, ProtaStructure also allows user-defined acceleration spectra to be used in cases
where a site-specific survey is required for specific site conditions.

ProtaStructure 2026 introduces a powerful new feature, allowing engineers to import as many userdefined acceleration spectra functions as they want and assign different spectrum curves in the X, Y,
and Z directions. This enhancement provides greater flexibility and precision in seismic analysis, enabling
our users to tailor their designs to specific project requirements and regional seismic conditions.

How to create a user-defined spectrum library and how to create a new spectrum are explained in detail in the attached document.