Page 182 - Handbook of Structural Steel Connection Design and Details

Design of Connections for Axial, Moment, and Shear Forces

Design of Connections for Axial, Moment, and Shear Forces 167

the interaction equations from Chapter H of the Specification are used
to combine the effects of the axial and bending forces.
P 39
Since 5 5 0.269 $ 0.2 Use (H1-1a AISC Manual)
R c 145
P 8 Va 2 V 2
a 1 b 1 a b
R c 9 M b R v
39 8 33s6d 2 33 2
5 a 1 b 1 a b 5 0.329 # 1.0 ok
145 9 683 122

Net shear, axial, and bending interaction on plate. Axial capacity (tension).
R 5 F t [L 2 ns 1 1>16d]
b
t
u p
5 0.75s58ds0.375d[15 2 4s0.875d] 5 163 kips
Bending capacity. The net bending capacity is assumed to be the same
as the gross bending capacity. This is based on testing reported by
Mohr (2005).

M 5 683 kips-in
b
Shear capacity.

R 5 0.6F t [L 2 ns 1 1>16d]
t
b
u p
5 0.75s0.6ds58ds0.375d[15 2 4s0.875d] 5 97.9 kips

Interaction.
P 39
Since 5 5 0.239 $ 0.2 use (H1-1a AISC Manual)
R t 163

P 8 Va 2 V 2
a 1 b 1 a b
R c 9 M b R v
39 8 33s6d 2 33 2
5 a 1 b 1 a b 5 0.361 # 1.0 ok
163 9 683 97.9

Weld capacity.
T 21 39
21

5 tan a b 5 tan a b 5 49.88
V 33
1.5
R w 5 2s1.392dLDs1 1 0.5sin
d
1.5
5 2s1.392ds15ds4d[1 1 0.5 sin s49.8d] 5 223 kips $ 51.1 kips, ok

Downloaded from Digital Engineering Library @ McGraw-Hill (www.accessengineeringlibrary.com)
Copyright © 2009 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.