How can I calculate hole numbers for plate support???
How can I calculate hole numbers for plate support???
(OP)
Hi everybody!
I want to calculate the minimum hole numbers for a plate that is going to support a tube working as a bending case. I´m goint to set this steel plate on wall and on it, a pipe will be welded at centre of the plate, and this pipe will have a bending load. So in order to have the pipe with the plate supported on wall, i require to put bolts, so i need to drill this plate. so How can I calculate the minimum number of holes in order that can support without problems. I´ve checked in other topics here minimum length between edge of plate and centre of hole but for calculating number of holes...can you help me with this?? I litlle guideness to calculate that please???
Thank you very much!
Roland Saver
I want to calculate the minimum hole numbers for a plate that is going to support a tube working as a bending case. I´m goint to set this steel plate on wall and on it, a pipe will be welded at centre of the plate, and this pipe will have a bending load. So in order to have the pipe with the plate supported on wall, i require to put bolts, so i need to drill this plate. so How can I calculate the minimum number of holes in order that can support without problems. I´ve checked in other topics here minimum length between edge of plate and centre of hole but for calculating number of holes...can you help me with this?? I litlle guideness to calculate that please???
Thank you very much!
Roland Saver





RE: How can I calculate hole numbers for plate support???
Seriously, though, your question depends on a number of factors. How thick can you or do you want to go on the plate? What are the limits of the plate width and length? Are there any side or torsional loads to deal with? What about construction loads? Is this plate mounted on concrete? Wood? Ice?
Please provide more information...
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RE: How can I calculate hole numbers for plate support???
RE: How can I calculate hole numbers for plate support???
Good luck!
Tobalcane
"If you avoid failure, you also avoid success."
RE: How can I calculate hole numbers for plate support???
Tobalcane
"If you avoid failure, you also avoid success."
RE: How can I calculate hole numbers for plate support???
Thank you all of you. Swearingen, My initial data are:
Plate on concrete wall
Plate thickness: 3/8"
Material: ASTM A-36
Width=Length = 4" x 4"
It is a pipe sch 40 (1" nominal diameter) welded at the centre of square plate. It will work as a horizontal beam in cantiliver. I´ve got the force with shear forces and momentums and with this, the maximum momentum for calculating maxium shear strees for a tubular section cross is 766.853 lb/in2. This value, I will use it of for maximum stress in the plate with the bolts (thanks twoballcane)For this moment I have supposed 4 holes of 1/2" diameter. But before calculating it, I want to know if exists a method of calculatin number of these.
What do you think?
Roland Saver
RE: How can I calculate hole numbers for plate support???
Calculate the loads that could exist at each mounting bolt location.
Select bolt diameter and grade accordingly.
Don't forget to check if the wall is strong enough.
RE: How can I calculate hole numbers for plate support???