直径	1根	2根	3根	4根	5根	6根	7根	8根	9根	10根	11根	12根	13根	14根	15根	16根
3	7.1	14.2	21.3	28.4	35.5	42.6	49.7	56.8	63.9	71	78.1	85.2	92.3	99.4	106.5	113.6
4	12.6	25.2	37.8	50.4	63	75.6	88.2	100.8	113.4	126	138.6	151.2	163.8	176.4	189	201.6
5	19.6	39.2	58.8	78.4	98	117.6	137.2	156.8	176.4	196	215.6	235.2	254.8	274.4	294	313.6
6	28.3	56.6	84.9	113.2	141.5	169.8	198.1	226.4	254.7	283	311.3	339.6	367.9	396.2	424.5	452.8
6.5	33.2	66.4	99.6	132.8	166	199.2	232.4	265.6	298.8	332	365.2	398.4	431.6	464.8	498	531.2
8	50.3	100.6	150.9	201.2	251.5	301.8	352.1	402.4	452.7	503	553.3	603.6	653.9	704.2	754.5	804.8
8.2	52.8	105.6	158.4	211.2	264	316.8	369.6	422.4	475.2	528	580.8	633.6	686.4	739.2	792	844.8
10	78.5	157	235.5	314	392.5	471	549.5	628	706.5	785	863.5	942	1020.5	1099	1177.5	1256
12	113.1	226.2	339.3	452.4	565.5	678.6	791.7	904.8	1017.9	1131	1244.1	1357.2	1470.3	1583.4	1696.5	1809.6
14	153.9	307.8	461.7	615.6	769.5	923.4	1077.3	1231.2	1385.1	1539	1692.9	1846.8	2000.7	2154.6	2308.5	2462.4
16	201.1	402.2	603.3	804.4	1005.5	1206.6	1407.7	1608.8	1809.9	2011	2212.1	2413.2	2614.3	2815.4	3016.5	3217.6
18	254.5	509	763.5	1018	1272.5	1527	1781.5	2036	2290.5	2545	2799.5	3054	3308.5	3563	3817.5	4072
20	314.2	628.4	942.6	1256.8	1571	1885.2	2199.4	2513.6	2827.8	3142	3456.2	3770.4	4084.6	4398.8	4713	5027.2
22	380.1	760.2	1140.3	1520.4	1900.5	2280.6	2660.7	3040.8	3420.9	3801	4181.1	4561.2	4941.3	5321.4	5701.5	6081.6
25	490.9	981.8	1472.7	1963.6	2454.5	2945.4	3436.3	3927.2	4418.1	4909	5399.9	5890.8	6381.7	6872.6	7363.5	7854.4
28	615.8	1231.6	1847.4	2463.2	3079	3694.8	4310.6	4926.4	5542.2	6158	6773.8	7389.6	8005.4	8621.2	9237	9852.8
32	804.2	1608.4	2412.6	3216.8	4021	4825.2	5629.4	6433.6	7237.8	8042	8846.2	9650.4	10454.6	11258.8	12063	12867.2
36	1017.9	2035.8	3053.7	4071.6	5089.5	6107.4	7125.3	8143.2	9161.1	10179	11196.9	12214.8	13232.7	14250.6	15268.5	16286.4
40	1256.6	2513.2	3769.8	5026.4	6283	7539.6	8796.2	10052.8	11309.4	12566	13822.6	15079.2	16335.8	17592.4	18849	20105.6

用根数表示钢筋面积 用间距表示的1m板带钢筋