High Strength J-Bolts
High Strength J-Bolts
(OP)
I need to design several surface mounted base plates to resist relatively large pull-out and shear forces. Due to spacing and edge distance limitations we are running out of options with regular expansion and epoxy anchors plus the contractor would like to use some type of embeded anchor. Any recommendations on J-Bolts, or L-Bolts(MNFR, TYPE, STRENGTH, CAPACITY, etc) would be appreciated.
Thank yuo
Thank yuo






RE: High Strength J-Bolts
RE: High Strength J-Bolts
TY
RE: High Strength J-Bolts
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: High Strength J-Bolts
RE: High Strength J-Bolts
http://www.FerrellEngineering.com
RE: High Strength J-Bolts
RE: High Strength J-Bolts
I think for 36 ksi rods with a nut, concrete pull out never controls.
You'll still need to check everything else in APP D
RE: High Strength J-Bolts
There is a link to some related papers as well.
Also I second or third the recommendation to use heavy hex head rather than hooked rod ends.
http://www.eng-tips.com/viewthread.cfm?qid=310997
RE: High Strength J-Bolts
I thought the the failure mode for L & J anchors was crushing of the concrete at the corner prior to any significant bond stresses developing between the straight portion of the rod and the adjacent concrete.
Thus - wouldn't a U-bolt fail in the same manner - crushing of the concrete? Sure there's some prying action present in the J anchors not present in the U anchors, but is the effect that significant?
RE: High Strength J-Bolts
RE: High Strength J-Bolts
RE: High Strength J-Bolts
RE: High Strength J-Bolts
RE: High Strength J-Bolts
I was just looking at this for a project this AM. Refer to ACI 318`05 RD5.3.5,
"...neglecting any frictional component because crushing inside the hook will greatly reduce stiffness..."
RE: High Strength J-Bolts