Cable-stayed bridge safety assessment method based on multi-source information-fuzzy analytic hierarchy process

The invention relates to a cable-stayed bridge safety assessment method based on multi-source information-fuzzy analytic hierarchy process, which comprises the following steps: S1, fusing multi-source disease data in daily inspection, regular detection and health monitoring of a bridge, constructing a bridge disease database, and converting diseases into technical condition scores; s2, based on the disease technical condition score, technical condition evaluation is carried out on the components, the component overall and the upper-layer indexes in sequence, and finally the overall technical condition score of the bridge is obtained; and S3, giving a bridge maintenance operation strategy based on the technical condition score of each part of the bridge. Compared with the prior art, the multi-source information fusion and fuzzy comprehensive evaluation technology is introduced, mass multi-platform multi-source data generated in the maintenance operation of the cable-stayed bridge is fused, the cable-stayed bri