Abstract: In bridge engineering, the utilization of prestressed intelligent tensioning and intelligent grouting can improve the construction quality and performance of bridge. Base on it, the structure and principle of intelligent tensioning and intelligent grouting are analyzed, and the concrete application of these technology are explored. The application example shows the technology of intelligent tensioning and intelligent grouting meet the demand of bridge construction, and they are in favor of the safety and the quality of bridge structure. The technology will be used widely in bridge engineering.

Key words: bridge engineering, intelligent tensioning, intelligent grouting, construction principle, construction technology