steelTOOLS

FRAME

02-24-2009 07:20

Analysis of portal and gable rigid frames using the stiffness matrix method. Program determines support reactions for any combination of pinned and/or fixed supports, member end forces, member maximum moments, and joint displacements.

#framedesign

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05-01-2013 09:16

Regarding the 2013 update to Version 1.1, the author states:
In the process of creating the new metric units version of the "FRAME.xls" spreadsheet workbook for the analysis of portal and gable frames, I realized that for some reason I had used the angular units of radians for the slope (rotation) which really are suited for metric (SI) units. Degrees would have been the better choice for consistent English units, so I made that minor change in the 2 calculation worksheets.
Also, since a few people had asked me about it, I added some information at the bottom of the "DOC" worksheet describing how the user can manually implement an iterative solution to account for P-Delta ("Big" Delta) effects (2nd order) on the columns of a frame.