鋼筋的計(jì)算截面面積,,,,,,,,,,,,,,,,,,,,,,,,,,,

直徑,不同根數(shù)直徑的計(jì)算截面面積（mm2）,,,,,,,,,,,,,,,,,,,,,,,,,,直徑

（mm）,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,（mm）

5,20,39,59,79,98,118,137,157,177,196,216,235,255,274,294,314,333,353,372,392,412,431,451,470,490,510,5

6,28,57,85,113,142,170,198,226,254,283,311,340,368,396,425,453,481,509,538,566,594,623,651,679,708,736,6

6.5,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,50,6.5

8,50,101,151,201,252,302,352,402,453,503,553,604,654,704,755,805,855,905,956,1006,1056,1107,1157,1207,1258,1308,8

8.2,53,106,158,211,264,317,370,422,475,528,581,634,686,739,792,845,898,950,1003,1056,1109,1162,1214,1267,1320,1373,8.2

10,79,157,236,314,393,471,550,628,707,785,864,942,1021,1099,1178,1256,1335,1413,1492,1570,1649,1727,1806,1884,1963,2041,10

12,113,226,339,452,565,679,792,905,1017,1131,1244,1357,1470,1583,1697,1810,1923,2036,2149,2262,2375,2488,2601,2714,2828,2941,12

14,154,308,462,616,770,924,1078,1232,1385,1539,1693,1847,2001,2155,2309,2462,2616,2770,2924,3078,3232,3386,3540,3694,3848,4001,14

16,201,402,603,804,1005,1206,1407,1608,1809,2011,2212,2413,2614,2815,3017,3218,3419,3620,3821,4022,4223,4424,4625,4826,5028,5229,16

18,255,509,763,1018,1272,1527,1781,2036,2290,2545,2800,3054,3309,3563,3818,4072,4327,4581,4836,5090,5345,5599,5854,6108,6363,6617,18

20,314,628,942,1257,1571,1885,2199,2513,2827,3142,3456,3770,4085,4399,4713,5027,5341,5656,5970,6284,6598,6912,7227,7541,7855,8169,20

22,380,760,1140,1521,1901,2281,2661,3041,3421,3801,4181,4561,4941,5321,5702,6082,6462,6842,7222,7602,7982,8362,8742,9122,9503,9883,22

25,491,982,1473,1963,2454,2945,3436,3927,4418,4909,5400,5891,6382,6873,7364,7854,8345,8836,9327,9818,10309,10800,11291,11782,12273,12763,25

28,616,1232,1847,2463,3079,3695,4310,4926,5542,6158,6774,7390,8005,8621,9237,9853,10469,11084,11700,12316,12932,13548,14163,14779,15395,16011,28

32,804,1608,2413,3217,4021,4825,5630,6434,7238,8042,8846,9650,10455,11259,12063,12867,13671,14476,15280,16084,16888,17692,18497,19301,20105,20909,32

36,1018,2036,3054,4072,5089,6107,7125,8143,9161,10179,11197,12215,13233,14251,15269,16286,17304,18322,19340,20358,21376,22394,23412,24430,25448,26465,36

40,1257,2513,3770,5027,6283,7540,8796,10053,11310,12566,13823,15079,16336,17592,18849,20106,21362,22619,23875,25132,26389,27645,28902,30158,31415,32672,40

（mm）,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,（mm）

直徑,不同根數(shù)直徑的計(jì)算截面面積（mm2）,,,,,,,,,,,,,,,,,,,,,,,,,,直徑

"聲明：

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