Study on the Post-Tensioned Prestressed Concrete Bridge Construction Method
Download as PDF
DOI: 10.25236/icess.2019.040
Corresponding Author
Yuewu Du
Abstract
To effectively promote the quality of concrete bridge, in this paper, we propose a post-tensioned prestressed concrete bridge construction method. Firstly, we introduce the background theory of post-tensioned prestressed concrete bridge construction, and illustrate the process flow chart of the post-tensioned prestressed technology. Secondly, we discuss how to utilize the prestressed principle in concrete bridge construction. Particularly, a hole are reserved below the eccentric distance in a concrete beam axis, and then high-strength steel can be installed and stretched. Moreover, normal stress of the concrete section is produced by the external load moment. Finally, we conduct a simulation to make performance evaluation by testing the vibration velocity under various truck speeds. Simulation results demonstrate that the post-tensioned prestressed technology is able to promote the safe level of the concrete bridge.
Keywords
Post-tensioned prestressed concrete, Bridge construction, high-strength tendon, Normal stress, Resistance Moment