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plate steel strength

thread723-63735

plate steel strength

plate steel strength

(OP)
Does anyone know what the allowable shear stress is in plate steel.  I'm hanging a load from an eye-hole cut in 4" square plate steel.  I was wondering if it was 0.40Fy, or if that only applies to beams in bending.  

RE: plate steel strength

The sheer is determined by the amount of material that is left from the edge of the hole to edge of the material.  A lot of this information is a simple look-up, or you can do like I have several times and that is send a email to your steel supplier.  I downloaded several analisis software from steel suppliers that give you the information.

Sincerely yours,
Leslie H. Howell

Leslie H. Howell
www.howellconsulting.com

RE: plate steel strength

(OP)
Thanks Leslie, but I need to know what the allowable stress is in the steel.  For Example...a beam in bending with proper lateral bracing has the allowable bending stress, Fb=0.66Fy.  A beam with the proper web to thickness ratio has the allowable shear stress, Fv=0.40Fy.  I need to know what the allowable shear stress is in plate steel.  I've been using 0.40Fy, but I think that I'm being conservative.\

 

RE: plate steel strength

In AISC, allowable shear stress in 0.40Fy if don't need to consider stability.

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