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.
Related Articles
Seismic Analysis to EuroCode 8
ProtaStructure can now calculate seismic loads in accordance EuroCode 8. Country specific requirements of the following National Annex have been implemented : MS EN 1998-1 : 2015 (Malaysia National Annex) SS EN 1998-1 : 2013 (Singapore National ...Seismic Analysis to Indonesia SNI 1726 : 2019
ProtaStructure can now calculate seismic loads in accordance with Indonesia (SNI 1726 :2019 ) seismic code, which is an adaptation of ASCE07. Go to Building Analysis dialog > Pre-analysis tab : Click on Settings Center > Code section will be shown > ...Assessment & Performance-Based Design to Eurocode 8 Part 3
Eurocode 8: Design of structures for earthquake resistance – Part 3: Assessment and retrofitting of buildings (EN 1998-3:2005) is a fundamental reference for the seismic evaluation of existing buildings. It provides a structured methodology for ...Nonlinear Seismic Isolators
By leveraging our expertise in seismic isolation, we have developed new tools to ensure the final precise design of seismically isolated buildings. The design of earthquake-resistant structures requires expertise in advanced earthquake engineering. ...Assessment & PBD to ASCE/SEI 41
ASCE/SEI 41-17—“Seismic Evaluation and Retrofit of Existing Buildings”—is the industry standard for assessing seismic performance in existing structures. Moreover, it uses performance-based design principles. Consequently, the standard defines a ...