Effectiveness of Studs in Tension
Effectiveness of Studs in Tension
(OP)
Folks,
How do you typically calculate the number of effective studs and plate thickness for conditions as shown in the sketch? It appears that the plate thickness will need to increase considerably before the studs on either side of the flange become effective.
Your thoughts?
How do you typically calculate the number of effective studs and plate thickness for conditions as shown in the sketch? It appears that the plate thickness will need to increase considerably before the studs on either side of the flange become effective.
Your thoughts?






RE: Effectiveness of Studs in Tension
This Mathcad worksheet is in an optimization setup that may be a bit more complicated to follow than a mere check.
RE: Effectiveness of Studs in Tension
Prior to powerful computer programs, we usually layout the bolt rows in a symmetrical manner with respect to beam flange connections, so the top and bottom connections each has two bolt rows to resist tension, and assume the middle row of bolts takes shear only to simplify the analysis. But nowadays I think you can use FEM method with the plate supported by tension only springs (representing concrete) and pins (studs) to derive more relistic results.
Watchout for prying action on top & bottom plate edges.
RE: Effectiveness of Studs in Tension
RE: Effectiveness of Studs in Tension
RE: Effectiveness of Studs in Tension
RE: Effectiveness of Studs in Tension
FEA analysis will be more accurate, but you can get close with the beam approximation.
RE: Effectiveness of Studs in Tension
Have you checked PCI design manual, it shall have something on concrete embedment like this.