OVERHANG: REINFORCED CONCRETE DECK DESIGN

The design of overhang does not only consider dead and live loads on the interior bays but also load in case of truck collision.

AASHTO specification for overhang design includes:

• Design Case 1 (Extreme Event II) for horizontal force due to truck collision to the railing
• Design Case 2 (Extreme Event II) for vertical force due to truck collision to the railing
• Design Case 3 (Strength I) for the dead load and vehicular live loads to the overhang.

*For Design Cases 1 and 2, the load factor for dead load , shall be taken as 1.0.

EXAMPLE 2.7.1. OVERHANG DESIGN CASE 1

EXAMPLE 2.7.2. OVERHANG DESIGN CASES 2 AND 3 AND OTHER CASES