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["Jim Hannah" <jvhannah(--nospam--at)insightbb.com>]

You want the 1986 Metal Building Manufacturers Association(MBMA) Building Systems Design Manual with supplement and or the current Design Manual.  Both have examples of how to solve that problem.  Think sailing ship with lots of masts with lots of sails.  The MBMA has the original design studies available for some cost.  It was by some Canadian University researcher.  It returns enormous forces on the order of 3 and 4 times what a similar low rise box building would transmit thru all the bracing to the foundation.  Always seemed rather high to me but that was the methodology.

 

Jim Hannah

----- Original Message -----

From: Bruce Holcomb

To: seaint(--nospam--at)seaint.org

Sent: Monday, October 03, 2005 9:03 AM

Subject: wind on steel frames without cladding

I remember a procedure we used at the metal building company I used to work for, for analyzing the wind load on bare steel frames.  This was for open buildings where the wind pressure is directly against the main steel frame and I believe was in the MBMA design manual and was based on Canadian research.  Can anyone help me locate information on this topic?  I suppose one possibility would be to buy the new MBMA design manual (assuming the bare frame wind calc info is still in there).

 

 

Bruce Holcomb