ARCH CROSS-BARS
| Cross-bar | Dimension “a” (m) |
|---|---|
| B-1 | 1600 |
| BR-1 | 1600 |
| B-2 | 2000 |
| B-66 | 2625 |
| B1-C | 1600 |
| BR1-C | 1600 |
| B2-C | 2000 |
MECHANICAL CHARACTERISTICS
| Cross-bar | Load cases | Workloads + overload daN V | Workloads + overload daN L | Workloads + overload daN F | Factors of safety |
|---|---|---|---|---|---|
| B-66 | A | 350 | – | 500 | 1.5 |
| B-66 | B | 400 | 180 | 500 | 1.2 |
| B-1 | A | 130 | – | 110 | 1.5 |
| B-1 | B | 120 | 45 | 110 | 1.2 |
| BR-1 | A | 240 | – | 210 | 1.5 |
| BR-1 | B | 240 | 115 | 210 | 1.2 |
| B-2 | A | 320 | – | 260 | 1.5 |
| B-2 | B | 320 | 115 | 260 | 1.2 |
| B-1C | A | 130 | – | 110 | 1.5 |
| B-1C | B | 130 | 45 | 110 | 1.2 |
| B-1C | C | 130 | 45 | – | 1.5 |
| BR-1C | A | 240 | – | 210 | 1.5 |
| BR-1C | B | 340 | 115 | 210 | 1.2 |
| BR-1C | C | 240 | 115 | – | 1.5 |
| B-2C | A | 320 | – | 260 | 1.5 |
| B-2C | B | 320 | 115 | 260 | 1.2 |
| B-2C | C | 320 | 115 | – | 1.5 |
STRAIGHT CROSS-BAR
| Cross-bar | Dimension “a” (m) |
|---|---|
| CR-1 | 1700 |
| C-2 | 2000 |
| CR-2 | 2000 |
MECHANICAL CHARACTERISTICS
| Cross-bar | Load cases | Workloads + overload daN V | Workloads + overload daN L | Workloads + overload daN F | Factors of safety |
|---|---|---|---|---|---|
| CR-1 | A | 340 | – | 1000 | 1.5 |
| CR-1 | B | 190 | 1000 | – | 1.5 |
| C-2 | A | 380 | – | 1000 | 1.5 |
| C-2 | B | 215 | 1000 | – | 1.5 |
| CR-2 | A | 380 | – | 1500 | 1.5 |
| CR-2 | B | 215 | 1500 | – | 1.5 |
DOUBLE AND FLAG-TYPE CROSS-BARS
MECHANICAL CHARACTERISTICS
| Denomination | Load cases | Workloads + overload daN V | Workloads + overload daN L | Workloads + overload daN F | C.S |
|---|---|---|---|---|---|
| Double cross-bars DC-1 | A | 215 | – | 500 | 1.5 |
| Double cross-bars DC-1 | B | 215 | 115 | 500 | 1.2 |
| Double cross-bars DC-2 | A | 480 | – | 1500 | 1.5 |
| Double cross-bars DC-2 | B | 380 | 1500 | 500 | 1.2 |
| Double cross-bars DC-66 | A | 600 | – | 1500 | 1.5 |
| Double cross-bars DC-66 | B | 500 | 750 | 1500 | 1.2 |
| Flag-type cross-bar BA-1 | A | 215 | – | 500 | 1.5 |
| Flag-type cross-bar BA-1 | B | 215 | 115 | 500 | 1.2 |
The case of load A represents the wind hypothesis (C.S.=1.5), application of a transversal load, F, combined with the vertical load, V.
The case of load B, depending on the use of the cross-bar, may represent the “traction imbalance” hypothesis (C.S.=1.2) or that of end of line (C.S.=1.5), depending on the case, the following loads will apply: longitudinal, L, transversal F and vertical, V.