According to the detection duty of the bridge-detection vehicle,this paper discusses the design of the parameter and structure of work arm of the bridge-detection vehicle and establishes its kinematics model.

Research on the data acquisition and managing technique of bridge detection;

Questions deserving attention in bridge detection and evaluation;

The technology of bridge detection and it s develop trend;

The measurements of deflection,displacement,and geometric configuration are important components of bridge inspection.

Signal processing is one of the most important aspects in bridge inspection.

All of the issures related to project survey,design and construction plan,quality control point and measure,bridge inspection for pre-stressed concrete arched bridge were studied in this paper,which can offer reference to similar engineering.

Starting from the whole process in standard- izing the bridge testing and maintenance,this article ex- patiated the bridge testing system and maintenance sys- tem in practical work,and then proposed some sugges- tions to deal with the questions occurred in the actual operation process.