1. Determine the maximum allowable load for each of the following 6x6 columns, if the unbraced length is 9'-0". Assume pin ends (k=1). Neglect the self-weight of the column. a. #1 Douglas Fir b. #2 Douglas Fir 2. What is the maximum allowable load on a W10x100 column (Fy = 36 ksi) with an unbraced length of 18'-0"? Assume pins ends (k-1). Neglect the self-weight of the column.
1. Determine the maximum allowable load for each of the following 6x6 columns, if the unbraced length is 9'-0". Assume pin ends (k=1). Neglect the self-weight of the column. a. #1 Douglas Fir b. #2 Douglas Fir 2. What is the maximum allowable load on a W10x100 column (Fy = 36 ksi) with an unbraced length of 18'-0"? Assume pins ends (k-1). Neglect the self-weight of the column.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:1. Determine the maximum allowable load for each of the following 6x6 columns, if the unbraced
length is 9'-0". Assume pin ends (k=1). Neglect the self-weight of the column.
a. #1 Douglas Fir
b. #2 Douglas Fir
2. What is the maximum allowable load on a W10x100 column (Fy = 36 ksi) with an unbraced length
of 18'-0"? Assume pins ends (k-1). Neglect the self-weight of the column.
Transcribed Image Text:Slenderness Ratio: L/d
Allowable Compression Stress (Fc') in psi for sawn
timber columns
Douglas Fir
Structural Light Ne
1.800.000 1.700.000 1,600,000 1,300,000
1,250
1,000
303
289
310
000
272
260
237
st and Timber
12
208
200
192
* Structural Light Framing:2x2 throug
Post and Timber: 5"x5" and Emough 4x4
greater than thickness (.e. 6x6, 6x8)
: width less than 2"
256
232
221
Table C
Alle C-36
For Compression Members of 36-ksi Specified Yield Stress Steel"
22222
12221
4 13 18
12345 67890 12BH5 6781920 12232425 26 27 28 29 30 31 32 33 34 35 38 7 38 39 40
21.22.21.21.21. 2121212020 20 2020 20 20 20 20 20 20. 20 20 20 20 20 19 1919191919
11 12朶科578950 可能5科55 6 7 58 59 60引能的科65 6印開的 70 71 72 78 74 75 75 7 78 79 80
84
99999
50 42 35 28
--
台大希級別
09
777
57834 3488
5
15.79
15.69
16 17
15.36
18 18 18 18 12 12 :
88
01
9999
00 0000
NNNN
125
66666
66555
8833 35332 3326)
c
55.
月255.55% 33548 113船的班,能看不
5 15
पं.
433
83568
33333
86 85 8刀不
"When element width-to-thickness ratio exceeds noncompact section limits of Sect. B5.1,
See Appendix B5
Note: Ce=126.1
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