Research Article
Structural Behavior and Design of Barrier-Overhang Connection in Concrete Bridge Superstructures Using AASHTO LRFD Method
Table 1
Minimum required design forces and dimension for traffic railing (1 kip = 4.45 kN, 1 ft = 0.31 m).
| | Design forces and designations | Railing test levels | | TL-1 | TL-2 | TL-3 | TL-4 | TL-5A | TL-5 | TL-6 |
| | transverse (kip) | 13.5 | 27.0 | 54.0 | 54.0 | 116.0 | 124.0 | 175.0 | | longitudinal (kip) | 4.5 | 9.0 | 18.0 | 18.0 | 39.0 | 41.0 | 58.0 | | vertical (kip) down | 4.5 | 4.5 | 4.5 | 18.0 | 50.0 | 80.0 | 80.0 | | and (ft) | 4.0 | 4.0 | 4.0 | 3.5 | 8.0 | 8.0 | 8.0 | | (ft) | 18.0 | 18.0 | 18.0 | 18.0 | 40.0 | 40.0 | 40.0 | | (min) (in.) | 18.0 | 20.0 | 24.0 | 32.0 | 40.0 | 42.0 | 56.0 | | Min. height of rail (in.) | 27.0 | 27.0 | 27.0 | 32.0 | 40.0 | 54.0 | 90.0 |
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