ABCDEFGHIJKLMNOPQRSTUV
1
2
PROJECT : PAGE :
3
 CLIENT :
DESIGN BY :
4
JOB NO. : DATE :
REVIEW BY :
5
Flexure Capacity for Z-Profile Tread and Riser Based on AISC 360-10/16
6
7
INPUT DATA & DESIGN SUMMARY
8
SECTION
8 Gage (0.1644 in Thickness)
9
STEEL YIELD STRESS
Fy =
ksi, (345 MPa)
10
BENDING UNBRACED LENGTH
Lbx =18
ft, (5.49 m), (AISC 360 F2.2.c)
11
MAXIMUM BENDING MOMENT
Mrx =1,35
ft-kips, (2 kN-m), ASD
12
13
THE DESIGN IS ADEQUATE.
14
15
ANALYSIS
16
CHECK YIELDING CAPACITY
17
Mx = Mn / Wb =
22,77/ 1.67 =13,64ft-kips
18
>Mbx
[Satisfactory]
19
Where
Mn = Fy Smin =
22,77
ft-kips, (AISC 360 F12)
20
Smin =5,46in3
21
22
CHECK LATERAL-TORSIONAL BUCKLING
23
Mx = Mn / Wb =
2,39/ 1.67 =1,43ft-kips
24
>Mbx
[Satisfactory]
25
WhereMn =2,39
ft-kips, (AISC 360 F10.2)
26
b =9in
27
t =0,1644in
28
E =29000ksi
29
Cb =1,00
30
My = 0.8 Fy Smin =
18,22
ft-kips, (AISC 36014 F10.2)
31
32
33
2,67
ft-kips, (AISC 360 F10-6a)
34
35
36
CHECK LEG LOCAL BUCKLING
37
Mx = Mn / Wb =
2,50/ 1.67 =1,50ft-kips
38
>Mbx
[Satisfactory]
39
Where
Mn = 0.8 Fcr Smin =
2,50
ft-kips, (AISC 360 F10-8)
40
Fcr = 0.71 E / (b /t)2 =
6,87
ksi, (AISC 360 F10.9)
41
42
43
44
45
46
LICENSE NUMBER: Package License Including New Software Based on ASCE 41-17, ASCE 7-16, AISC 360/341/358-16
47
48
www.Engineering-International.com
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100