Axial Load Capacities Single Plates Calculator and Equations | Engineers Edge

AXIAL LOAD CAPACITIES FOR SINGLE PLATES
Based on Gross Section Loaded Uniformly in Either Tension or Compression
per AISC 9th Edition Manual (ASD)

Input:
Fy =		ksi	Fy = yield stress
Lc =		in.	Lc = unbraced length for compressive buckling
K =			K = effective length factor for compression

Gross Uniform Tension Capacites for Single Plates (kips)
In the case of bracing gusset plates, the concept of the "Whitmore Section" may be used to determine the effective height of the gusset plate to be used in analysis. The "Whitmore Section" consists of the total effective width at the end of the brace as determined by drawing 30 degree lines spreading or fanning outward from the point where the load is initially delivered to the gusset plate from the brace and continuing to where these lines intersect a line parallel to and at the end of the brace. In the case of a bolted brace, this would be from the first row of bolts to the end of the brace. In the case of a welded brace, this would be from the beginning of the welds to the end of the brace. Plate Ht.,	Plate Thickness, tp (in.)
Hp (in.)













Gross tension capacity of plate: Rt = Ft*Ap
where:	Ft = 0.60Fy and Ap = Hptp

Gross Uniform Compression Capacites for Single Plates (kips)
In the case of bracing gusset plates, the concept of the "Whitmore Section" may be used to determine the effective height of the gusset plate to be used in analysis. The "Whitmore Section" consists of the total effective width at the end of the brace as determined by drawing 30 degree lines spreading or fanning outward from the point where the load is initially delivered to the gusset plate from the brace and continuing to where these lines intersect a line parallel to and at the end of the brace. In the case of a bolted brace, this would be from the first row of bolts to the end of the brace. In the case of a welded brace, this would be from the beginning of the welds to the end of the brace. Plate Ht.,	Plate Thickness, tp (in.)
Hp (in.)













Compression (buckling) capacity of plate: Rc = Fa*Ap
where:	Ap = Hp*tp
	r = tp/(SQRT(12)) (radius of gyration for minor axis of plate)
	KL/r = K*Lc/r (slenderness ratio)
	Cc = SQRT(2p^229000/Fy)
	If KL/r <= Cc then Fa = (1-(KLc/r )^2/(2Cc^2))Fy/(5/3+3(KLc/r)/(8Cc)-(KLc/r)^3/(8Cc^3))
	If KL/r > Cc then Fa = 12p^229000/(23(KLc/r)^2)


















		Compression and Tension Loading