Single Bolt To Connect Pedestrian Rail Post to Concrete
Single Bolt To Connect Pedestrian Rail Post to Concrete
(OP)
Pedestrian railing...standard dimensions but the post connection to the stem wall is a little odd to me.
I haven't seen a design like this before. An architect and contractor are asking me to look at it for a peer review. Analyzing seams pretty straight forward: bolt shear, bolt bending, tension, post shear/bending.
Has anyone else designed something similar? If so, how was the performance?
I haven't seen a design like this before. An architect and contractor are asking me to look at it for a peer review. Analyzing seams pretty straight forward: bolt shear, bolt bending, tension, post shear/bending.
Has anyone else designed something similar? If so, how was the performance?






RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
www.FerrellEngineering.com
Providing fabrication and erection efficient structural design of connections. Consulting services for structural welding and bolting.
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
Lateral load applied to the handrail is multiplied into tension in the allthread/epoxy joint because the 3/4 square bar's lower edge acts as a fulcrum, at least to some extent.
The team may also have understimated the difficulty of tapping 1/2" diameter through 6" of steel.
... and I'm not sure exactly how the setscrew is supposed to help anything, but I really really hate setscrews.
Mike Halloran
Pembroke Pines, FL, USA
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
M.S. Structural Engineering
Licensed Structural Engineer and Licensed Professional Engineer (Illinois)
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
BA
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
The amount of accuracy involved in getting this to come out perfectly straight is pretty amazing. Not to mention some little kid coming along and seeing a lose set screw and removing it.
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
RE: Single Bolt To Connect Pedestrian Rail Post to Concrete
hokie66: They weren't wanting to tap the aluminum rod, they were wanting to put that as a sleeve over a 6" stick of solid steel that would be tapped.
I called the architect this morning and with a little moaning and groaning from him, I persuaded him to do an embedded post. He didn't like it being 1/2" bigger than what was originally there, but not much else a person can do!!!