An HSS 14 × 10 × 1/4 column has a length of 24 ft. The base of the column is considered to be fixed, while the upper end is assumed to be pinned. Use ?? = 46 ksi. Determine the axial compressive design strength for LRFD and the allowable strength for ASD considering local stability.
An HSS 14 × 10 × 1/4 column has a length of 24 ft. The base of the column is considered to be fixed, while the upper end is assumed to be pinned. Use ?? = 46 ksi. Determine the axial compressive design strength for LRFD and the allowable strength for ASD considering local stability.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
An HSS 14 × 10 × 1/4 column has a length of 24 ft. The base of the
column is considered to be fixed, while the upper end is assumed to be
pinned. Use ?? = 46 ksi.
Determine the axial compressive design strength for LRFD and the
allowable strength for ASD considering local stability.
Transcribed Image Text:Table 1-11 (continued)
Rectangular HSS
Dimensions and Properties
HSS16-HSS12
Axis Y-Y
Workable Flat
Torsion
Surface
Area
Shape
Depth Width
S
C
in.
in.
in.
in.
in.
in.
in.
in.
ft2/ft
1316
134
1416
HSS16×4×%8
27.0
23.5
1.60
1.65
32.5
60.5
50.7
3.17
3.20
54.1
174
47.0
27.4
150
38.3
19.1
1.71
21.7
25/16
120
39.7
3.23
x16
14%8
14/8
1516
33.2
16.6
1.73
18.5
103
33.8
3.25
2/8
316
27.7
13.8
1.76
15.2
85.2
27.6
3.27
x16
21.5
10.8
1.78
11.7
65.5
21.1
3.28
HSS14×10×%8
1116
114
12/16
1216
128
407
341
81.5
68.1
716
7%4
3.98
95.1
832
146
3.83
4.04
78.5
685
120
3.87
8%16
816
267
53.4
4.09
60.7
528
91.8
3.90
x/16
3.92
3.93
227
4.12
4.14
45.5
51.4
446
77.4
186
37.2
41.8
8%8
362
62.6
Transcribed Image Text:Table 1-11 (continued)
Rectangular HSS
-
Dimensions and Properties
Design
Wall
Thick-
Axis X-X
Nominal
Wt.
Area,
Shape
A
b/t
h/t
ness, t
in.
Ib/ft
in.?
in.
in.
in.
in.3
HSS16×4×%
76.33
62.46
0.581
21.0
3.88
24.5
539
67.3
5.06
92.9
0.465
17.2
5.60
31.4
455
56.9
5.15
77.3
0.349
47.90
13.2
8.46
42.8
360
45.0
5.23
60.2
x16
40.35
32.63
24.73
0.291
11.1
10.7
52.0
308
38.5
5.27
51.1
0.233
8.96
65.7
253
31.6
24.2
14.2
5.31
41.7
x16
0.174
6.76
20.0
89.0
193
5.35
31.7
HSS14×10×%
0.581
0.465
14.2
18.5
98.2
81.8
5.17
5.23
93.34
25.7
21.1
687
120
76.07
20.9
27.1
573
98.8
0.349
58.10
16.0
25.7
37.1
447
63.9
5.29
76.3
x/16
0.291
0.233
48.86
13.4
5.32
5.35
31.4
45.1
380
54.3
64.6
39.43
10.8
39.9
57.1
310
44.3
52.4
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