Proposed Revisions
Submitted to AISC in January 2015
Affecting Buildings
Designed & Erected - September 1942 to
February 1946
Example
of One Selected Proposed Revision:
Existing Bending Stress Listed in
Design Guide 15:
20 KSI (1936 to 1963)
Proposed Revision to Bending Stress:
20 KSI (1936 to 1942) 24 KSI (1942 to 1946)
20 KSI (1946 to 1963)
One Reason for the Proposed Revision: Building structural
steel (circa 1942 to 1946) being reviewed today is actually 20% more
heavily loaded (24 KSI instead of 20 KSI) than Design Guide 15 advises.
Similar descrepancies are addressed in the proposed revisions
concerning bolts, rivets and welds.
I received a prompt, professional response from AISC on January 14,
2015. The proposed revisions have been forwarded to individuals
responsible for updating the AISC Design Guides. As of June 8,
2015, I have not been informed of any planned changes.
For reference, links to the pertinent AISC Specifications for Buildings
are provided below:
1. The proposed revisions apply only to buildings, bridges
were not covered in the 1942 specification.
2. The predecessor document to AISC Design Guide 15 is "AISC Iron
And Steel Beams, 1873 To 1952". This book was published in 1953,
is in the Public Domain, and is available on at the link below.
The proposed revisions to Design Guide 15 apply to pages 8 and 9 of
this 1953 book, also.
