Structural Concrete - Hassoun

Appendix A Design Tables (U.S. Customary Units) 999
Table A.7
Minimum Beam Width (in.) (Using Stirrups)
Size of
Bars
Number of Bars in Single Layer of Reinforcement
2 3 4 5 6 7 8
Add for
Each Added
Bar (in.)
No. 4 6.1 7.6 9.1 10.6 12.1 13.6 15.1 1.50
No. 5 6.3 7.9 9.6 11.2 12.8 14.4 16.1 1.63
No. 6 6.5 8.3 10.0 11.8 13.5 15.3 17.0 1.75
No. 7 6.7 8.6 10.5 12.4 14.2 16.1 18.0 1.88
No. 8 6.9 8.9 10.9 12.9 14.9 16.9 18.9 2.00
No. 9 7.3 9.5 11.8 14.0 16.3 18.6 20.8 2.26
No. 10 7.7 10.2 12.8 15.3 17.8 20.4 22.9 2.54
No. 11 8.0 10.8 13.7 16.5 19.3 22.1 24.9 2.82
No. 14 8.9 12.3 15.6 19.0 22.4 25.8 29.2 3.39
No. 18 10.5 15.0 19.5 24.0 28.6 33.1 37.6 4.51
[ ( )]
Mu lb ⋅ in.
Table A.8 Values of bd 2 (in. 3 )wherebd 2 =
R u
psi
Values of b (in.)
d (in.) 6 7 8 9 10 11 12 13 14 15 16 20
4 96 112 128 144 160 176 192 208 224 240 256 320
4.5 122 142 162 182 202 223 244 264 284 305 325 405
5 150 175 200 225 250 275 300 325 350 375 400 500
5.5 182 212 242 273 303 333 364 394 424 455 485 605
6 216 252 288 324 360 396 432 468 504 540 576 720
6.5 255 297 340 382 425 467 510 552 595 637 680 850
7 294 343 392 441 490 539 588 637 686 735 784 980
8 384 448 512 576 640 704 768 832 896 960 1024 1280
9 486 567 648 729 810 891 972 1053 1134 1215 1296 1620
10 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 2000
11 726 847 968 1089 1210 1331 1452 1573 1694 1815 1936 2420
12 864 1008 1152 1296 1440 1584 1728 1872 2016 2160 2304 2880
13 1014 1183 1352 1521 1690 1859 2028 2197 2366 2535 2704 3380
14 1176 1372 1568 1764 1960 2156 2352 2548 2744 2940 3136 3920
15 1350 1575 1800 2025 2250 2475 2700 2925 3150 3375 3600 4500
16 1536 1792 2048 2304 2560 2816 3072 3328 3584 3840 4096 5120
17 1734 2023 2312 2601 2890 3179 3468 3757 4046 4335 4624 5780
18 1944 2268 2592 2916 3240 3564 3888 4212 4536 4860 5184 6480
19 2166 2527 2888 3249 3610 3971 4332 4693 5054 5415 5776 7220
20 2400 2800 3200 3600 4000 4400 4800 5200 5000 6000 6400 8000
21 2646 3087 3528 3969 4410 4851 5292 5733 6174 6615 7056 8820
22 2904 3388 3872 4356 4840 5324 5808 6292 6776 7260 7744 9680
23 3174 3703 4232 4761 5290 5819 6348 6877 7406 7935 8464 10,580
24 3456 4032 4608 5184 5760 6336 6912 7488 8064 8640 9216 11,520
28 4704 5488 6272 7056 7840 8624 9408 10,192 10,976 11,760 12,544 15,680
30 5400 6300 7200 8100 9000 9900 10,800 11,700 12,600 13,500 14,400 18,000
34 6936 8092 9248 10,404 11,560 12,716 13,872 15,028 16,184 17,340 18,496 23,120
40 9600 11,200 12,800 14,400 16,000 17,600 19,200 20,800 22,400 24,000 25,600 32,000