KB's Activities

RAM Connection: Dowswell Reference

KB — Tue, 06 Jun 2017 14:31:50 GMT

I frequently see the reference in RAM Connection Calcs to:

Dowswell, B., 2003, Connection Design for Steel Structures, Structural Design Solutions, LLC

I have not been able to find this document anywhere which presents a rather large issue when interpreting the RAM Connection Results. Could you please provide a location to buy/access this reference? If it is no longer available for purchase, I would recommend finding a new reference for these calculations, if possible, or providing additional background on the calculations using this reference.

RAM Conn vs. RAM Frame Panel Zones

KB — Mon, 07 Oct 2019 15:29:09 GMT

Why is the panel zone required demand different in RAM Frame - Steel Seismic Provisions than in RAM Connection for a RBS beam directly welded to a column flange? I can replicate the RAM Frame numbers for demand and capacity. In RAM Connection, the capacity matches RAM Frame, but the demand is much greater. The demand in RAM Connection is also the same for all load combinations.

RAM Connection: ACI Chapter 17 Seismic Ductility

KB — Fri, 21 Jun 2019 13:34:02 GMT

How does RAM Connection Baseplate handle the seismic ductility requirements for ACI Appendix D (Chapter 17)? Our typical buildings are SDC C with R=3. When I run the Connection module for projects, I do not see options relating to these requirements given.

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Fri, 21 Jun 2019 01:51:11 GMT

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Ram Connection Standalone: Anchors in Invalid Positions

KB — Thu, 09 Mar 2017 15:48:42 GMT

Ram Connection Standalone: In a double angle connection to a column flange, using (2)L5x3x3/8, long leg on supported member, bolted to beam and welded to column flange, I get an error of 'anchors in invalid positions'. I have check the a=3" and edge distances are ok, any other ideas what this error references?

Seismic Load Effects in RAM for non lateral members

KB — Tue, 28 Jun 2016 20:42:15 GMT

Does RAM do anything to account for vertical or horizontal Seismic Load Effects (ASCE 7/10-12.4) for non-lateral members? Has the decision been made that they will not often control for members outside of the seismic resisting system?