Vehicular Collision
When the design choice is to redirect the collision load, follow the requirements given in Chapter 2 - Limit States and Loads. When the design choice is to provide structural resistance, design for the 600 kip equivalent static load as described in Chapter 2 - Limit States and Loads, Section 2 - Loads.
Design the column to withstand the collision force in shear and flexure. Consider the transfer of this force to the other elements such as bent caps, footings, piles, or drilled shafts. Design all the structural elements for collision forces. Consider the soil response when determining the boundary conditions (i.e. depth to fixity). Neglect the collision load when determining the lateral and bearing pressures for foundation design.
Use of a vehicular deflection wall between the columns is permitted if necessary. Design vehicular deflection wall assembly (columns plus wall) for the 600-kip equivalent static load as described in Chapter 2 - Limit States and Loads, Section 2 - Loads.
No further analysis is required for columns with a gross cross-sectional area no less than 40 sq. ft., a minimum thickness of 5 ft. and column transverse reinforcement is composed of at least No. 4 ties at 12 in. maximum spacing or a No. 4 spiral at 9 in. maximum pitch.