How does ideCAD design Four Bolts Unstiffened End Plate Connection according to AISC 358-16 & AISC 360-16?
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Lh = distance between plastic hinge locations, in. (mm)
Lst = length of stiffener, as shown in Figure 6.5, in. (mm)
Mpr = probable maximum moment at the plastic hinge, kip-in. (N-mm), given by Equation 2.4-1
Sh = distance from the face of the column to the plastic hinge, in. (mm)
Vgravity = beam shear force resulting from 1.2D + f1L + 0.2S (where f1 is a load factor determined by the applicable building code for live loads, but not less than 0.5), kips (N)
Vu= shear force at the end of the beam, kips (N)
bbf = width of beam flange, in. (mm)
d = depth of connecting beam, in. (mm)
tp = thickness of end-plate, in. (mm)
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Four bolt end-plate connections consist of welding the beam to an end plate and bolting the end plate to a column flange.
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Connection Design Parameters
Resistance factor for ductile limit state (Yielding Limit State):
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Parametric Limitations on Prequalification for Four-Bolt Unstiffened Connections | ||
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Parameter | Maximum | Minimum |
tbf | 3/4 (19) | 3/8 (10) |
bbf | 91/4 (235) | 6 (152) |
d | 55 (1400) | 133/4 (349) |
tp | 21/4 (57) | 1/2 (13) |
bp | 103/4 (273) | 7 (178) |
g | 6 (152) | 4 (102) |
pfi , pfo | 41/4 (114) | 11/2 (38) |
pb | - | - |
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