Copy of 1970 Uniform Building Code

[ILGSE623]

Calling out to anyone who has an extensive library of old codes!

We are in search of the 1970 or 1973 UBC to locate Table 25-C for allowable stresses for an existing glulam. General notes on the original 1-11-73 drawings are shown in the attached photo. We'd like to squeeze all the capacity we can out of these beams and our 1976 UBC does not have the same designations. Thank you for your assistance.

 

[JAE]

Here's Chapter 25 of the 1970 UBC.

 

[lexpatrie]

If the 1961 is of any use, it's online.

https://www.eng-tips.com/faqs.cfm?fid=2802

I feel at one point all the Uniform Building Codes were available in PDF on maybe Berkeley or Sanford web site, but they aren't there anymore.

 

[jayrod12]

On a note about getting the most out of a glulam beam, that may not work great for you depending on the date of manufacture. I came across this technical note when I was working on a glulam project (see attached), and have seen personally glulams of the day that met code at the time, but are showing signs of overstressing. We ended up reinforcing them in many occasions. It sounds like in your case you may be ok, but it's worth throwing up here for all to see.

 

[ILGSE623]

Thank you all so much! I knew the brain trust in this forum would not disappoint. We appreciate your time and assistance!