FRAME3D is a program for the three-dimensional nonlinear analysis of steel
buildings. It aims to overcome the computational challenges posed by full 3D
analysis of buildings subject to earthquake ground motion. The element library
consists of a plastic hinge beam element, an elastofiber beam element, a modified elastofiber element, a panel
zone element, a 4-noded diaphragm element to model floor slabs, and an elastic
translational/rotational spring element to model foundations and supports. The
program utilizes a Netwon-Raphson iteration strategy applied to an implicit Newmark time-integration scheme to solve the nonlinear equations of motion at
each time-step. Geometric nonlinearity and shear deformation are included in the
P-FRAME3D is the parallel version of FRAME3D currently under development.
Upon completion, P-FRAME3D
can be executed on a parallel computer cluster to solve complex structural
engineering problems such as the strong shaking of a super-highrise building or
a long-span cable-supported bridge under a large earthquake occurring on a
FRAME3D Program - http://www.frame3d.caltech.edu.
The Caltech Virtual Shaker - http://virtualshaker.caltech.edu
FRAME3D Program User Guide - FRAME3D -
A Program for Three-Dimensional Nonlinear Time-History Analysis of Steel
Buildings: User Guide.