connector spacing for built up members
connector spacing for built up members
(OP)
I am trying to reinforce a 140' 12-sided pole. It is galvanized steel 5/16" thick at the base. I'd like to bolt on some plates in order to reinforce the pole.
The AISC LRFD spec J3.5 states that the longitudinal spacing for connectors shall not exceed 24*t or 12" for members not subject to corrosion.
I'm wondering if this applies here (although the pole is subject to corrosion it is galvanized). And if so, why is the fastener spacing so close. This pole is overstressed up to 100'. At a 7" bolt spacing thats a lot of bolts. I've checked the horizontal shear and checked the plates as a column and have come up with a bolt spacing of about 18". Can anybody comment about the reason for the 24*t requirement?
The AISC LRFD spec J3.5 states that the longitudinal spacing for connectors shall not exceed 24*t or 12" for members not subject to corrosion.
I'm wondering if this applies here (although the pole is subject to corrosion it is galvanized). And if so, why is the fastener spacing so close. This pole is overstressed up to 100'. At a 7" bolt spacing thats a lot of bolts. I've checked the horizontal shear and checked the plates as a column and have come up with a bolt spacing of about 18". Can anybody comment about the reason for the 24*t requirement?






RE: connector spacing for built up members
RE: connector spacing for built up members
RE: connector spacing for built up members
RE: connector spacing for built up members
Probably a stupid question, but have you checked the cost of this swiss cheese repair against replacing the pole?
And how are you going to install the bolts with no access to the back side of the connection?
Hg
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RE: connector spacing for built up members
I was planning to use Lindapter hollo bolts to secure the plate.
-JT