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Bolts: ASTM A394 55T

Bolts: ASTM A394 55T

Bolts: ASTM A394 55T

(OP)
trying to analyze the connections on a transmission line tower that was designed in the 1950's. The bolts listed on the design drawings are not the typical type 1, 2, 3 etc. that we expect to see in present times. Instead, the bolts are listed as "ASTM-A394-55T". I am having trouble establishing a suitable shear capacity for these bolts. Any suggestions?

RE: Bolts: ASTM A394 55T

You might look at ASCE 10 to see if they say anything about old bolts. Bob Nickerson had a paper at an ASCE conference about analyzing old towers:
http://ascelibrary.org/doi/abs/10.1061/40642%28253...

You also might look at old ASTM specs from the time to see if they say anything.

If you use PLS-CADD software to analyze T-Lines, you might contact them to see if they have some specs for old bolts.


Sorry for the late response, I don't read these forums very often.

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