A Caltech Library Service

FRAME3D - A Program for Three-Dimensional Nonlinear Time- History Analysis of Steel Buildings: User Guide

Krishnan, Swaminathan (2003) FRAME3D - A Program for Three-Dimensional Nonlinear Time- History Analysis of Steel Buildings: User Guide. EERL Report, 2003-03. California Institute of Technology , Pasadena, CA. (Unpublished)

PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


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 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 formulation. This document serves as a User Guide to the program. All the input and output variables encountered by the user are described here along with brief descriptions of the various types of elements. In addition, 2 examples illustrating the capabilities and usage of the program are presented. Finally a glossary of all the variables is alphabetically listed at the end of the document for the user's convenience.

Item Type:Report or Paper (Technical Report)
Krishnan, Swaminathan0000-0002-2594-1523
Group:Earthquake Engineering Research Laboratory
Series Name:EERL Report
Issue or Number:2003-03
Record Number:CaltechEERL:EERL-2003-03
Persistent URL:
Usage Policy:You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.
ID Code:26541
Deposited By: Imported from CaltechEERL
Deposited On:24 Feb 2004
Last Modified:03 Oct 2019 03:15

Repository Staff Only: item control page