Measuring ARMCO® RailgardTM Curvatures
- 1. The first step is to mark along the curve you wish to measure at 4 or 5m intervals.
- 2. Measure the chord length (refer to Diagram 1, ‘C’).
- 3. Measure the offset (refer to Diagram 1, ‘H’).
- 4. Use the values achieved from steps 2 and 3 to select the radius from Table 1.
- 5. Determine whether the curved ARMCO® Railgard™ is to be Concave or Convex from Diagram 2.
DIAGRAM 1
DIAGRAM 2
Please note. This is meant only as an information tool. Please do not hesitate to contact Armco Barriers for assistance in determining the radius bend of curved ARMCO® Railgard™.
Table 1
| RAIL LENGTH | 4m | 5m | |||
|---|---|---|---|---|---|
| RADIUS | CHORD | HEIGHT | ANGLE | CHORD | HEIGHT |
| (m) | (mm) | (mm) | (Degrees) | (mm) | (mm) |
| 2.5 | 3,587 | 758 | 114.59 | 4,207 | 1,149 |
| 3 | 3,710 | 642 | 95.49 | 4,441 | 983 |
| 4 | 3,835 | 490 | 71.62 | 4,681 | 756 |
| 5 | 3,894 | 395 | 57.30 | 4,794 | 612 |
| 6 | 3,926 | 330 | 47.75 | 4,857 | 513 |
| 7 | 3,946 | 284 | 40.93 | 4,894 | 442 |
| 8 | 3,958 | 249 | 35.81 | 4,919 | 387 |
| 9 | 3,967 | 221 | 31.83 | 4,936 | 345 |
| 10 | 3,973 | 199 | 28.65 | 4,948 | 311 |
| 11 | 3,978 | 181 | 26.04 | 4,957 | 283 |
| 12 | 3,982 | 166 | 23.87 | 4,964 | 259 |
| 13 | 3,984 | 154 | 22.04 | 4,969 | 240 |
| 14 | 3,986 | 143 | 20.46 | 4,973 | 223 |
| 15 | 3,988 | 133 | 19.10 | 4,977 | 208 |
| 20 | 3,993 | 100 | 14.32 | 4,987 | 156 |
| 25 | 3,996 | 80 | 11.46 | 4,992 | 125 |
| 30 | 3,997 | 67 | 9.55 | 4,994 | 104 |
| 35 | 3,998 | 57 | 8.19 | 4,996 | 89 |
| 40 | 3,998 | 50 | 7.16 | 4,997 | 78 |
| 45 | 3,999 | 44 | 6.37 | 4,997 | 69 |
| 50 | 3,999 | 40 | 5.73 | 4,998 | 62 |