Response Spectra

Dynamic response spectrum analysis, elastic and elastoplastic response spectra

Version 1.7 (1.48 MB)
5.7K Downloads
(7)
14 Sep 2015

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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.

Cite As

George Papazafeiropoulos (2026). Response Spectra (https://www.mathworks.com/matlabcentral/fileexchange/44835-response-spectra), MATLAB Central File Exchange. Retrieved .

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General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
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Version Published Release Notes
1.7

Odd files excluded from the package
Description enriched
Additional examples are included.
New features incorporated (dynamic response spectrum analysis, elastoplastic constant ductility response spectra, etc.)
1.6.0.0

Examples were added which verify theoretical data, earthquake case studies and problems solved in textbooks.
1.5.0.0

Minor improvements in formatting
1.4.0.0

Code improvement. Examples from Chopra and Clough & Penzien incorporated.
1.3.0.0

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.
1.2.0.0

Minor improvements of the example file
1.1.0.0

An example is added with all necessary illustrations for the application of the fast elastic response spectrum algorithm
1.0.0.0