Civil Data
TIS 20 / TIS 24Live · Neon DB
Reinforcing Bars
เหล็กเสริมคอนกรีต — เหล็กเส้นกลม (RB) และเหล็กข้ออ้อย (DB)
Nominal properties per bar. Area = π d² / 4, weight = area × 7,850 kg/m³.
| Bar | Type | d (mm) | Area (cm²) | Weight (kg/m) | Perimeter (cm) |
|---|---|---|---|---|---|
| RB6 | Round (SR24) | 6 | 0.283 | 0.222 | 1.88 |
| RB9 | Round (SR24) | 9 | 0.636 | 0.499 | 2.83 |
| RB12 | Round (SR24) | 12 | 1.131 | 0.888 | 3.77 |
| RB15 | Round (SR24) | 15 | 1.767 | 1.387 | 4.71 |
| RB19 | Round (SR24) | 19 | 2.835 | 2.226 | 5.97 |
| RB25 | Round (SR24) | 25 | 4.909 | 3.853 | 7.85 |
| DB10 | Deformed (SD) | 10 | 0.785 | 0.617 | 3.14 |
| DB12 | Deformed (SD) | 12 | 1.131 | 0.888 | 3.77 |
| DB16 | Deformed (SD) | 16 | 2.011 | 1.578 | 5.03 |
| DB20 | Deformed (SD) | 20 | 3.142 | 2.466 | 6.28 |
| DB25 | Deformed (SD) | 25 | 4.909 | 3.853 | 7.85 |
| DB28 | Deformed (SD) | 28 | 6.158 | 4.834 | 8.80 |
| DB32 | Deformed (SD) | 32 | 8.042 | 6.313 | 10.05 |
| DB36 | Deformed (SD) | 36 | 10.179 | 7.990 | 11.31 |
| DB40 | Deformed (SD) | 40 | 12.566 | 9.865 | 12.57 |
Total steel area by number of bars (cm²)
| Bar | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| RB6 | 0.28 | 0.57 | 0.85 | 1.13 | 1.41 | 1.70 | 1.98 | 2.26 | 2.55 | 2.83 |
| RB9 | 0.64 | 1.27 | 1.91 | 2.54 | 3.18 | 3.82 | 4.45 | 5.09 | 5.72 | 6.36 |
| RB12 | 1.13 | 2.26 | 3.39 | 4.52 | 5.66 | 6.79 | 7.92 | 9.05 | 10.18 | 11.31 |
| RB15 | 1.77 | 3.53 | 5.30 | 7.07 | 8.83 | 10.60 | 12.37 | 14.14 | 15.90 | 17.67 |
| RB19 | 2.83 | 5.67 | 8.50 | 11.34 | 14.18 | 17.01 | 19.84 | 22.68 | 25.52 | 28.35 |
| RB25 | 4.91 | 9.82 | 14.73 | 19.64 | 24.54 | 29.45 | 34.36 | 39.27 | 44.18 | 49.09 |
| DB10 | 0.79 | 1.57 | 2.35 | 3.14 | 3.93 | 4.71 | 5.50 | 6.28 | 7.07 | 7.85 |
| DB12 | 1.13 | 2.26 | 3.39 | 4.52 | 5.66 | 6.79 | 7.92 | 9.05 | 10.18 | 11.31 |
| DB16 | 2.01 | 4.02 | 6.03 | 8.04 | 10.05 | 12.07 | 14.08 | 16.09 | 18.10 | 20.11 |
| DB20 | 3.14 | 6.28 | 9.43 | 12.57 | 15.71 | 18.85 | 21.99 | 25.14 | 28.28 | 31.42 |
| DB25 | 4.91 | 9.82 | 14.73 | 19.64 | 24.54 | 29.45 | 34.36 | 39.27 | 44.18 | 49.09 |
| DB28 | 6.16 | 12.32 | 18.47 | 24.63 | 30.79 | 36.95 | 43.11 | 49.26 | 55.42 | 61.58 |
| DB32 | 8.04 | 16.08 | 24.13 | 32.17 | 40.21 | 48.25 | 56.29 | 64.34 | 72.38 | 80.42 |
| DB36 | 10.18 | 20.36 | 30.54 | 40.72 | 50.90 | 61.07 | 71.25 | 81.43 | 91.61 | 101.79 |
| DB40 | 12.57 | 25.13 | 37.70 | 50.26 | 62.83 | 75.40 | 87.96 | 100.53 | 113.09 | 125.66 |
Nominal values. Check rolling-mass tolerances and the deformed-bar geometry requirements of TIS 24 for acceptance testing.