Civil Engineering Reference
In-Depth Information
Table 4-9 continued
h = 8 in.,
d = 6
3
/
4
in.
h = 8
1
/
2
in.,
d = 7
1
/
4
in.
h = 9 in.,
d = 7
3
/
4
in.
COL.
SIZE
A
c
in.
2
J/c
in.
3
J/c'
in.
3
c
in.
c'
in.
A
c
in.
2
J/c
in.
3
J/c'
in.
3
c
in.
c'
in.
A
c
in.
2
J/c
in.
3
J/c'
in.
3
c
in.
c'
in.
10x10
293.6
1577
700
4.11
9.26
322.6
1792
791
4.17
9.45
352.6
2024
888
4.23
9.64
12x12
334.1
1994
898
4.78
10.6
366.1
2249
1008
4.83
10.79
399.1
2523
1124
4.89
10.98
14x14
374.6
2465
1124
5.44
11.94
409.6
2765
1253
5.50
12.13
445.6
3084
1391
5.56
12.32
16x16
415.1
2991
1376
6.10
13.27
453.1
3338
1528
6.16
13.46
492.1
3707
1689
6.22
13.65
18x18
455.6
3571
1655
6.77
14.61
496.6
3970
1832
6.83
14.80
538.6
4393
2018
6.89
14.99
20x20
496.1
4204
1961
7.43
15.94
540.1
4661
2164
7.49
16.13
585.1
5141
2378
7.55
16.33
22x22
536.6
4892
2294
8.1
17.28
583.6
5409
2526
8.16
17.47
631.6
5951
2768
8.21
17.66
24x24
577.1
5634
2654
8.76
18.61
627.1
6216
2916
8.82
18.80
678.1
6823
3190
8.88
18.99
h = 9
1
/
2
in.,
d = 8
1
/
4
in.
h = 10 in.,
d = 8
3
/
4
in.
COL.
SIZE
A
c
in.
2
J/c
in.
3
c
in.
c'
in.
A
c
in.
2
J/c
in.
3
J/c'
in.
3
c
in.
c'
in.
A
c
in.
2
10x10
383.6
2275
992
4.29
9.83
415.6
2544
1104
4.35
10.02
12x12
433.1
2816
1248
4.95
11.17
468.1
3129
1380
5.01
11.36
14x14
482.6
3424
1537
5.62
12.51
520.6
3785
1691
5.67
12.70
16x16
532.1
4098
1858
6.28
13.85
573.1
4511
2037
6.34
14.04
18x18
581.6
4839
2213
6.94
15.18
625.6
5308
2418
7.00
15.37
20x20
631.1
5646
2601
7.61
16.52
678.1
6176
2834
7.67
16.71
22x22
680.6
6519
3021
8.27
17.85
730.6
7113
3284
8.33
18.04
24x24
730.1
7458
3474
8.94
19.19
783.1
8121
3770
9.00
19.38
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