There was a download of SeismoStruct 18.1.1 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. This software was originally designed by SeismoSoft.
This PC program is developed for Windows XP/XP Professional/Vista/7/8/10/11 environment, 32-bit version. The most popular versions of the SeismoStruct are 18.1, 16.1 and 7.0. The program relates to Education Tools. SeismoStruct.exe, SeismoStruct.v2016.Loader.exe, SeismoStruct_es.exe, SeismoStruct_it.exe or SeismoStruct_tr.exe are the default file names to indicate this program's installer.
From the developer:
SeismoStruct is a Finite Element package for predicting large displacement behavior of space frames under static or dynamic loading. It can consider geometric nonlinearities and material inelasticity while during calculations. Concrete, steel, FRP and SMA material models are available, together with a library of 3D elements.
You may want to check out more software, such as Equation Wizard, StatPlus or CASSY Lab, which might be similar to SeismoStruct.