Recently,accidents of collisions between over-high trucks and bridge superstructures happen frequently,which seriously threaten the safety of bridges and city traffic system.

In order to improve the design and the capacity of anti-collision of bridge superstructure,the mechanism of collision between over-high truck and bridge superstructure was studied.

This paper introduces the checking、scheme of reinforcement and simulation of loading test of overweight vehicle for the bridge according to the transporting of scheme.

This paper introduces the requirement of bridge of overweicht oehicle,measures and the method of checking computation,combining actual example to expound the practicality of this method,managing overweight vehicle,bridge offers reference.

The paper discussed the harm types and cause of overload vehicles on all kinds of bridges,and proposed some advice for reference.

According to the types of the overload vehicles and the requirements for the bridge-passing,this paper analyzes on the vehicle overload transportation in Shanxi Province,and puts forward some measures for the management of the overload vehicles and for the reinforcement of the bridges.

In accordance with the bridge damage question in view of the overload vehicles,analyzed the damage form when the overload vehicles act on the different structure bridge,given the general method which the bridge damage investigates and examines,discussed the bridge structure damage preventive measure,and given the preliminary discussion on the prevent and reinforcement.

Study on effect of overloading vehicles to asphaltum road;