This toolbox is suitable for carrying Dynamic Response Spectrum Analysis (DRSA) for a given structure, as well as producing linear elastic response spectra and elastoplastic response spectra, using elastic-ideally plastic force-deformation relation. The necessary functions included involve apart from DRSA and spectra production, linear interpolation, eigenmode combination rules, refinement of time history in case the time step needs to be reduced, etc.
George Papazafeiropoulos (2023). Response Spectra (https://www.mathworks.com/matlabcentral/fileexchange/44835-response-spectra), MATLAB Central File Exchange. Retrieved .
MATLAB Release Compatibility
Platform CompatibilityWindows macOS Linux
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Odd files excluded from the package
Examples were added which verify theoretical data, earthquake case studies and problems solved in textbooks.
Minor improvements in formatting
Code improvement. Examples from Chopra and Clough & Penzien incorporated.
A bug noted by Dimitris Loulelis, Civil Engineer, M.Sc., was fixed so that for T->0, Sa and PSa tend to the max ground acceleration.
Minor improvements of the example file
An example is added with all necessary illustrations for the application of the fast elastic response spectrum algorithm