Tabla Para Calculo de Cantidad de Acero
Diametro Ø 1/4" 8mm 3/8" 12mm 1/2" 5/8" 3/4" 1" 1 3/8" 1 CANTIDAD DE VARILLAS DE FIERROS VS. Area de su seccion (cm²)
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Diametro Ø 1/4" 8mm 3/8" 12mm 1/2" 5/8" 3/4" 1" 1 3/8"
1
CANTIDAD DE VARILLAS DE FIERROS VS. Area de su seccion (cm²) 2 3 4 5 6 7 8
9
10
0.32
0.64
0.96
1.28
1.60
1.92
2.24
2.56
2.88
3.20
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
0.71
1.42
2.13
2.84
3.55
4.26
4.97
5.68
6.39
7.10
1.13
2.26
3.39
4.52
5.65
6.78
7.91
9.04
10.17
11.30
1.27
2.54
3.81
5.08
6.35
7.62
8.89
10.16
11.43
12.70
1.98
3.96
5.94
7.92
9.90
11.88
13.86
15.84
17.82
19.80
2.85
5.70
8.55
11.40
14.25
17.10
19.95
22.80
25.65
28.50
5.07
10.14
15.21
20.28
25.35
30.42
35.49
40.56
45.63
50.70
10.06
20.12
30.18
40.24
50.30
60.36
70.42
80.48
90.54
100.60
As=1Ø₁+1Ø₂ 1 1 1 1 1 1 1 1
Cantidad de varillas por COMBINACION DE AREAS DE ACEROS En cm² Ø₂ 1 1 1 1 1 1 Ø₁ 3/8" 12mm 1/2" 5/8" 3/4" 1" 1.42 1.84 1.98 2.69 3.56 5.78 3/8" 1.84 2.26 2.40 3.11 3.98 6.20 12mm 1.98 2.40 2.54 3.25 4.12 6.34 1/2" 2.69 3.11 3.25 3.96 4.83 7.05 5/8" 3.56 3.98 4.12 4.83 5.70 7.92 3/4" 5.78 6.20 6.34 7.05 7.92 10.14 1" 10.77 11.19 11.33 12.04 12.91 15.13 1 3/8"
Ø₂ As=2Ø₁+1Ø₂ 2 Ø₁ 2 3/8" 2 12mm 2 1/2" 2 5/8" 2 3/4" 2 1" 2 1 3/8" As=1Ø₁+2Ø₂ 2 2 2 2 2 2 2 2
Ø₂ Ø₁ 3/8" 12mm 1/2" 5/8" 3/4" 1" 1 3/8"
As=2Ø₁+2Ø₂ 3 3 3 3 3 3 3 3
Ø₂ Ø₁ 3/8" 12mm 1/2" 5/8" 3/4" 1" 1 3/8"
As=3Ø₁+1Ø₂ 3 3 3 3 3 3 3 3
Ø₂ Ø₁ 3/8" 12mm 1/2" 5/8" 3/4" 1" 1 3/8"
1 1 3/8" 10.77 11.19 11.33 12.04 12.91 15.13 20.12
1 3/8"
1 12mm
1 1/2"
1 5/8"
1 3/4"
1 1"
1 1 3/8"
2.13
2.55
2.69
3.40
4.27
6.49
11.48
2.97
3.39
3.53
4.24
5.11
7.33
12.32
3.25
3.67
3.81
4.52
5.39
7.61
12.60
4.67
5.09
5.23
5.94
6.81
9.03
14.02
6.41
6.83
6.97
7.68
8.55
10.77
15.76
10.85
11.27
11.41
12.12
12.99
15.21
20.20
20.83
21.25
21.39
22.10
22.97
25.19
30.18
2 3/8"
2 12mm
2 1/2"
2 5/8"
2 3/4"
2 1"
2 1 3/8"
2.84
3.68
3.96
5.38
7.12
11.56
21.54
3.68
4.52
4.80
6.22
7.96
12.40
22.38
3.96
4.80
5.08
6.50
8.24
12.68
22.66
5.38
6.22
6.50
7.92
9.66
14.10
24.08
7.12
7.96
8.24
9.66
11.40
15.84
25.82
11.56
12.40
12.68
14.10
15.84
20.28
30.26
21.54
22.38
22.66
24.08
25.82
30.26
40.24
1 3/8"
1 12mm
1 1/2"
1 5/8"
1 3/4"
1 1"
1 1 3/8"
2.84
3.26
3.40
4.11
4.98
7.20
12.19
4.10
4.52
4.66
5.37
6.24
8.46
13.45
4.52
4.94
5.08
5.79
6.66
8.88
13.87
6.65
7.07
7.21
7.92
8.79
11.01
16.00
9.26
9.68
9.82
10.53
11.40
13.62
18.61
15.92
16.34
16.48
17.19
18.06
20.28
25.27
30.89
31.31
31.45
32.16
33.03
35.25
40.24
2 3/8"
2 12mm
2 1/2"
2 5/8"
2 3/4"
2 1"
2 1 3/8"
2.84 4.10 4.52 6.65 9.26 15.92 30.89
4.39 5.65 6.07 8.20 10.81 17.47 32.44
4.67 5.93 6.35 8.48 11.09 17.75 32.72
6.09 7.35 7.77 9.90 12.51 19.17 34.14
7.83 9.09 9.51 11.64 14.25 20.91 35.88
12.27 13.53 13.95 16.08 18.69 25.35 40.32
22.25 23.51 23.93 26.06 28.67 35.33 50.30
Autor: Mg. Ing. Juan Carlos Gallardo Mendoza
Cantidad de varillas por COMBINACION DE AREAS DE ACEROS En cm² As=3Ø₁+1Ø₂
Ø₂
3
3
3
3
3
3
3
3
Ø₁
3/8"
12mm
1/2"
5/8"
3/4"
1"
1 3/8"
3
3/8"
4.26
5.52
5.94
8.07
10.68
17.34
32.31
3
12mm
5.52
6.78
7.20
9.33
11.94
18.60
33.57
3
1/2"
5.94
7.20
7.62
9.75
12.36
19.02
33.99
3
5/8"
8.07
9.33
9.75
11.88
14.49
21.15
36.12
3
3/4"
10.68
11.94
12.36
14.49
17.10
23.76
38.73
3
1"
17.34
18.60
19.02
21.15
23.76
30.42
45.39
3
1 3/8"
32.31
33.57
33.99
36.12
38.73
45.39
60.36
As=3Ø₁+1Ø₂
Ø₂
1
1
1
1
1
1
1
4
Ø₁
3/8"
12mm
1/2"
5/8"
3/4"
1"
1 3/8"
4
3/8"
3.55
3.97
4.11
4.82
5.69
7.91
12.90
4
12mm
5.23
5.65
5.79
6.50
7.37
9.59
14.58
4
1/2"
5.79
6.21
6.35
7.06
7.93
10.15
15.14
4
5/8"
8.63
9.05
9.19
9.90
10.77
12.99
17.98
4
3/4"
12.11
12.53
12.67
13.38
14.25
16.47
21.46
4
1"
20.99
21.41
21.55
22.26
23.13
25.35
30.34
4
1 3/8"
40.95
41.37
41.51
42.22
43.09
45.31
50.30
As=4Ø₁+2Ø₂
Ø₂
2
2
2
2
2
2
2
4
Ø₁
3/8"
12mm
1/2"
5/8"
3/4"
1"
1 3/8"
4
3/8"
4.26
5.10
5.38
6.80
8.54
12.98
22.96
4
12mm
5.94
6.78
7.06
8.48
10.22
14.66
24.64
4
1/2"
6.50
7.34
7.62
9.04
10.78
15.22
25.20
4
5/8"
9.34
10.18
10.46
11.88
13.62
18.06
28.04
4
3/4"
12.82
13.66
13.94
15.36
17.10
21.54
31.52
4
1"
21.70
22.54
22.82
24.24
25.98
30.42
40.40
4
1 3/8"
41.66
42.50
42.78
44.20
45.94
50.38
60.36
As=4Ø₁+3Ø₂
Ø₂
3
3
3
3
3
3
3
4
Ø₁
3/8"
12mm
1/2"
5/8"
3/4"
1"
1 3/8"
4
3/8"
4.97
6.23
6.65
8.78
11.39
18.05
33.02
4
12mm
6.65
7.91
8.33
10.46
13.07
19.73
34.70
4
1/2"
7.21
8.47
8.89
11.02
13.63
20.29
35.26
4
5/8"
10.05
11.31
11.73
13.86
16.47
23.13
38.10
4
3/4"
13.53
14.79
15.21
17.34
19.95
26.61
41.58
4
1"
22.41
23.67
24.09
26.22
28.83
35.49
50.46
4
1 3/8"
42.37
43.63
44.05
46.18
48.79
55.45
70.42
As=4Ø₁+4Ø₂
Ø₂
4
4
4
4
4
4
4
4
Ø₁
3/8"
12mm
1/2"
5/8"
3/4"
1"
1 3/8"
4
3/8"
5.68
7.36
7.92
10.76
14.24
23.12
43.08
4
12mm
7.36
9.04
9.60
12.44
15.92
24.80
44.76
4
1/2"
7.92
9.60
10.16
13.00
16.48
25.36
45.32
4
5/8"
10.76
12.44
13.00
15.84
19.32
28.20
48.16
4
3/4"
14.24
15.92
16.48
19.32
22.80
31.68
51.64
4
1"
23.12
24.80
25.36
28.20
31.68
40.56
60.52
4
1 3/8"
43.08
44.76
45.32
48.16
51.64
60.52
80.48
Autor: Mg. Ing. Juan Carlos Gallardo Mendoza