Design A connection
Design A connection
(OP)
How do i determine the nos on anchors needed if i have to bolt a C- channel on concrete.
I can have only one Bolt on the channel along the c/s
I know the moment at the base...
The thought process that is going on is to avoid the tripping of my bolt,
How much should be my embedment, i.e what is the min embedment i need to hold..
and how do i calculate my spacing of the bolts along the channel..
Guy's please help, i thanks all of you, for your advice..
I can have only one Bolt on the channel along the c/s
I know the moment at the base...
The thought process that is going on is to avoid the tripping of my bolt,
How much should be my embedment, i.e what is the min embedment i need to hold..
and how do i calculate my spacing of the bolts along the channel..
Guy's please help, i thanks all of you, for your advice..






RE: Design A connection
Loads - how much - what kind
Thickness of concrete - type - psi?
Size of anchors - what type
This should be fairly simple...
RE: Design A connection
Maybe, just maybe you are lucky...
Mike McCann
McCann Engineering
RE: Design A connection
I think you can get out of that 4 bolt minimum if your member qualifies as a post instead of a column. If it qualifies as a post, I believe you're only required to have 2 bolts.
RE: Design A connection
Mike McCann
McCann Engineering
RE: Design A connection
RE: Design A connection
I have a a unit which will hold glass.
this unit is bolted to concrete..
This unit ressembles like a channel , so mentioned it on mys posting
My max embedment depth is 3 1/2 " (not much)
my Moment will be some where 9 kip -in
breath of the unit is 1.5 inches, max size of the bolt will be 1"
i need to calulate, what spacing i should place my bolt,
[_] I can have 1 bolt on the c/s
|
my length of unit will be around 4-8 feet..
How should i go around calculating the required bolts..
thanks for the comments
RE: Design A connection
a post is defined as "a structural member with a longitudinal axis that is essentially vertical, that: 1.) is axially loaded and weighs less than 300#, or 2.) is not axially loaded, but is laterally restrained by the above member. Posts typically support stair landings, wall framing, mezzanines and other substructures."
A post is only required to have 2 anchor bolts, but must still resist teh 300# point load 18" from the face of the post.
This is apparently from some caselaw from January 18, 2001. The docket No. is S-775. It is approximately 58 pages, the uote I give above is on page 56
RE: Design A connection
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RE: Design A connection
RE: Design A connection
But please guy's please help out the question
"Let me rephase my post:
I have a a unit which will hold glass.
this unit is bolted to concrete..
This unit ressembles like a channel , so mentioned it on mys posting
My max embedment depth is 3 1/2 " (not much)
my Moment will be some where 9 kip -in
breath of the unit is 1.5 inches, max size of the bolt will be 1"
i need to calulate, what spacing i should place my bolt,
[_] I can have 1 bolt on the c/s
|
my length of unit will be around 4-8 feet..
How should i go around calculating the required bolts..
thanks for the comments"
RE: Design A connection
:)
RE: Design A connection
From above discussion answers assume that your C element is vertical and you want a fixed connection to concrete for its bottom end. If so, aren't you allowed to have a plate and have whatever bolts are required?
But from what you have shown as a scheme it looks like your element is horizontal, lying on concrete surface with all of its length, and serves like a support for a vertical plate (the glass?) and you want it to act like a fixed support.
Mike
RE: Design A connection
RE: Design A connection
My C section is lying horizontal flat on the surface as [_]
Bolt ==> |
As Shown my Channel section need's to be fixed like a fixed support so that no overtunning take place ....
I can just put 1 bolt along the c/s as shown, but n number of bolts along the length..my channel section width (breath) is just 2"..the tricky question to me is how much embedment, and nos of bolts.
I know how to design in shear, and tension but how will one bolt along c/s restrict bending...
[_] ==> channel
| ==> Bolt (just one along c/s)
RE: Design A connection