- Bispec
http://www.ce.berkeley.edu/~hachem/bispec
Computes Linear and Nonlinear spectra of earthquake records. Reads several strong data in various formats, and produces spectral results both in 2D and 3D plots. Can also analyze a single SDOF system under any ground acceleration record, and plot the displacement or force response over time or watch an animation of the response.
- Construsoft
http://www.construsoft.com/english.htm
Offers the programs : Xsteel, a 3D modeling system for steel structures; Powerframe, for analyzing structures in steel, concrete and timber and Powerplate, to analyze plates with using the finite element method (FEM). Description of programmes and services offered. Examples of structures developed with these programmes.
- ELPLA
http://elpla.com
A program for analyzing slab foundations of arbitrary shape with the real subsoil model. Description and download of a limited edition.
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