Department of Civil and Environmental Engineering
Edmund T. Pratt School of Engineering
Duke University - Box 90287,
Durham,
NC 27708-0287
Henri Gavin - Associate Professor - Henri.Gavin@Duke.edu - tel: 919-660-5201 - fax: 919-660-5219
Free software for static and dynamic structural analysis of 2D and 3D frames and trusses with elastic and geometric stiffness. Computes the static deflections, reactions, internal element forces, natural frequencies, mode shapes and modal participation factors of two- and three- dimensional elastic structures using direct stiffness and mass assembly. Graphical output and mode shape animation via Gnuplot version 4.0.

Right-Click or Control-Click to Download for:
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Linux (Intel) |
OS X (Intel) |
OS X (PPC) |
SunOS |
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Windows |
Installation Instructions, Manual and Reference
Example Input/Ouput Files
| Example A | 2-D Pratt Truss | Input/Output File | Plot | |
| Example B | Pyramid Frame | Input/Output File | Plot |
Movie |
| Example C | Tetrahedral Frame | Input/Output File | Plot |
Movie |
| Example D | Un-Restrained Frame | Input/Output File | Plot |
Movie |
| Example E | Lateral-Torsional Coupling | Input/Output File | Plot |
Movie |
| Example F | Building with Seismic Isolation | Input/Output File | Plot |
Movie |
| Example G | Building with Set-Back | Input/Output File | Plot |
Movie |
| Example H | Pedestrian Ramp Lateral Sway | Input/Output File | Plot |
Movie |
Index of free structural analysis software
Open System for Earthquake Engineering Simulation
Finite Element Analysis in Matlab
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FRAME3DD is is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Simply put, the GPL says that anyone who redistributes the software, with or without changes, must pass along the freedom to further copy and change it. By distributing the complete source code for FRAME3DD under the terms of the GPL, we guarantee that you and all other users will have the freedom to redistribute and change FRAME3DD. |
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FRAME3DD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License (GPL) and the GNU General Public License FAQ for more details.
© 1992-2008 Henri P. Gavin.
Verbatim copying and distribution is permitted in any medium, provided this notice is preserved. |