Verify AISC DG4 Bolt No Prying Assumption
AISC DG4 Is Used
Bolt Moment Strength (No Prying)
bolt grade
= A325-N
Ft
= 90.0
[ksi]
AISC 14th Table J3.2
bolt dia db
= 0.750
[in]
bolt area Ab
= 0.442
[in2]
Bolt norminal tensile strength
Pt
= Ft Ab
= 39.76
[kips]
AISC 14th Eq J3-1
Tension bolt moment arm
h0
= 13.705
[in]
h1
= 10.015
[in]
Bolt moment strength (no prying)
Mnp
= 2 Pt ( h0 + h1 )
= 157.19
[kip-ft]
AISC DG4 Eq 3.7
Bolt resistance factor-LRFD
φv
= 0.75
AISC 14th Eq J3-1
φnpv M
=
= 117.89
[kip-ft]
End Plate Bending Strength
End plate width
bplate
= 8.520
[in]
thickness tp
= 0.750
[in]
Beam flange width
bfb
= 6.520
[in]
Effective end plate width
bp
= min ( bplate , bfb + 1" )
= 7.520
[in]
AISC DG4 Page 9 item 5
End plate yield strength
Fyp
= 50.0
[ksi]
See AISC DG4 Table 3.2 for all formulas to derive the following parameters
AISC DG4 Table 3.2
Tension bolt moment arm
h0
= 13.705
[in]
h1
= 10.015
[in]
g
= 4.000
[in]
de
= 1.375
[in]
pfi
= 1.625
[in]
pfo
= 1.625
[in]
s
= 2.742
[in]
Yp
= 120.44
[in]
Flexure resistance factor-LRFD
φbv
= 0.90
AISC 14th F1 (1)
End plate bending strength
φb vMpl
= φbv Fyp t2p Yp
= 254.05
[kip-ft]
AISC DG4 Table 3.1
Check thick end plate condition
φb vMpl >= 1.11 X φv Mnp
AISC DG4 Eq 3.33
ratio
= 0.52 thick plate
The thick end plate conditions are met. AISG DG4 is used and
no bolt prying is considered
AISC DG4 Eq 3.33 & 3.35