Column Bars Combination for Design

COLUMN BAR COMBINATIONS
Notes:
1	Minimum spacing of bars considered to be 75mm as effective
2	Select bar combinations so that 200mm2 difference should be there in the column steel obtained from staad
3	Higher size bars are to be placed at the end and the combinations should be chosen so that steel is distributed equally on all sides as a priority
Combinations and Ast
Dia of bar	12	16	20	25	32
Area(mm2)	113	201	314	491	804
Width(mm)	Max. Number of bars
300	3
350	4
400	4
450	5
600	7
650	8
	Combinations	Ast(mm2)
	4-12#	452
	4-16#	804
	4-20#	1256
	4-25#	1963
	4-32#	3216
	4-16# & 4-12#	1256
	4-20# & 4-12#	1709
	4-20# & 4-16#	2060
	4-25# & 4-12#	2415
	4-25# & 4-16#	2767
	4-25# & 4-20#	3220
	4-32# & 4-12#	3669
	4-32# & 4-16#	4020
	4-32# & 4-20#	4473
	4-32# & 4-25#	5180
	8-12#	905
	8-16#	1608
	8-20#	2513
	8-25#	3926
	8-32#	6433
	10-12#	1131
	10-16#	2010
	10-20#	3141
	10-25#	4908
	10-32#	8041
	6-16# & 4-12	1658
	6-20# & 4-12	2337
	6-20# & 4-16	2689
	6-25# & 4-12	3397
	6-25# & 4-16	3749
	6-25# & 4-20	4201
	6-32# & 4-12	5277
	6-32# & 4-16	5629
	6-32# & 4-20	6081
	6-32# & 4-25	6788
	4-16# & 6-12	1483
	4-20# & 6-12	1935
	4-20# & 6-16	2463
	4-25# & 6-12	2642
	4-25# & 6-16	3169
	4-25# & 6-20	3848
	4-32# & 6-12	3895
	4-32# & 6-16	4423
	4-32# & 6-20	5101
	4-32# & 6-25	6161
	12-12#	1357
	12-16#	2412
	12-20#	3769
	12-25#	5889
	12-32#	9649
	6-16# & 6-12	1885
	6-20# & 6-12	2563
	6-20# & 6-16	3091
	6-25# & 6-12	3623
	6-25# & 6-16	4151
	6-25# & 6-20	4829
	6-32# & 6-12	5503
	6-32# & 6-16	6031
	6-32# & 6-20	6709
	6-32# & 6-25	7769
	6-16# & 8-12	2111
	6-20# & 8-12	2789
	6-20# & 8-16	3493
	6-25# & 8-12	3849
	6-25# & 8-16	4553
	6-25# & 8-20	5457
	6-32# & 8-12	4865
	6-32# & 8-16	6433
	6-32# & 8-20	7337
	6-32# & 8-25	8751
	14-12#	1583
	14-16#	2814
	14-20#	4397
	14-25#	6871
	14-32#	11257
	8-16# & 8-12	2513
	8-20# & 8-12	3417
	8-20# & 8-16	4121
	8-25# & 8-12	4831
	8-25# & 8-16	5534
	8-25# & 8-20	6439
	8-32# & 8-12	7337
	8-32# & 8-16	8041
	8-32# & 8-20	8946
	8-32# & 8-25	10359
	16-12#	1809
	16-16#	3216
	16-20#	5026
	16-25#	7853
	16-32#	12866
	18-12#	2035
	18-16#	3618
	18-20#	5654
	18-25#	8834
	18-32#	14474
	20-12#	2262
	20-16#	4020
	20-20#	6282
	20-25#	9816
	20-32#	16082