Chapter 4 Design for Direct Shear, Torsional Shear, and Torsional Deformation
Direct Shear Stress
4-1
4-4
4-7
4-8
4-10
4-13 :
4-16 =
F1 cos 30°
F2 sin 30°
F1 = 3.6 kN
40 mm
10 30 mm
4-17
4-18
[Continued on next page]
F
27.5 kN
B
By
B
x
1.4 m
0.80 m
0.60 m
A
x
A
y
A
RW
6
x
4-20
4-21
4-22
4-23
4-25
4-27
Problems with More Than One Kind of Direct Stress and Design Problems
4-30
4-31
4-32
4-33
4-34
4-35
4-36 [
4-37
4-38
4-39 F
4-40
;
0.375 m
34.0 kN
C
x
C
y By
Bx
0.90 m
1.80 m
0.60 m
1.65 m
FBD of Boom
34.0 kN
Fx
Fy
AE AEy
0.375
AEx
1.80 m
Pin A
AE = 110.8 kN
4-40
FBD of vertical post
Joint C
Cy = 102 kN
Cx = 27.2 kN
= 110.9 kN
4-40
4-40
Torsional Shear Stress
4-41
4-42
4-45
4-47
4-49