Assessment of Bridge Damage Based on Analytic Hierarchy Process

Abstract

For a comprehensive assessment of the technical condition of bridge structures, combining domestic and international bridge assessment methods, this paper establishes a time-influenced Analytic Hierarchy Process (AHP) to assess bridges in a hierarchical and graded evaluation. At the same time, based on the hierarchy model, we constructed a comprehensive condition assessment system, a judgment matrix for long-span cable-stayed bridges, and the consistency validation method of AHP to determine the reasonableness of the assessment results. We used ANSYS simulation analysis software to validate the method proposed in this paper and used the current structural condition of a cable-stayed bridge as an example. The results show that the current structural condition of the bridge is good, and the assessed structure corresponds to the actual state of the bridge. This paper’s bridge condition assessment system is based on bridge wear and time-influenced AHP. This technique is conducive to an accurate grasp of the bridge’s operational status and is significant to bridge maintenance and repair.