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This article focuses on vehicle impacts on the concrete columns of bridges and other structures. European regulations recommend minimum equivalent static design forces due to vehicular impact on members supporting structures over roadways. The value of this force is dependent only on the type of road (speed and mass of vehicle) and height of the impact. This type of calculation is deterministic and in principle cannot take into account all uncertainties that arise prior to and during vehicular impact with a concrete column. The impact probability, angle of the collision curse, vehicle velocity, vehicle mass and stiffness, and material and geometrical properties of the column are modeled in a probabilistic manner and the probability of failure is analyzed. This work compares deterministic and probabilistic modeling of vehicle impact, and concludes that deterministic modeling of vehicle impact can largely underestimate actions on columns during impact.

Reliability of concrete columns under vehicle impact