Study on Safety Evaluation of Cable-stayed Bridge Based on Inspection of the Main Span Cables´ Tension

This paper studies on the working state and safety performance of the cables, because cables are the principal bearing elements of the cable-stayed bridges. The paper makes a detailed analysis on the main span cables´ tension of a bridge over Yellow River and puts forward the safety evaluation. The paper suggests making an analysis on the deformation and tension of the whole bridge according to the cables´ tension variation, and taking corresponding project adjustment and structure adjustment measures if necessary.