| dc.description.abstract | Abstract
The degree of corrosion of steel structure bridge beams also varies depending on the environment. To investigate the structural safety of steel structure bridges or the effectiveness of subsequent maintenance of existing steel structure bridges, as well as the corrosion prevention design of new steel structure bridge towers in the future, understanding the degree of impact on the corrosion prevention ability of steel structure bridges and corrosion prevention management strategies is an important issue for design and maintenance. This study explores and analyzes the factors and indicators that are considered when affecting the corrosion of steel bridges, and organizes the aspects of this study. Through the distribution and recovery of questionnaires, the valuable opinions of the interviewees are compiled, and the AHP hierarchical analysis method is adopted. Calculate the relative weight and importance ranking of each evaluation factor. The research results related to this study are excerpted below.
1. Expert questionnaire on the evaluation aspects of the formwork support construction method for high-ceiling floors in technology factories, including five major aspects: ＂quality＂, ＂safety＂, ＂cost＂, ＂progress＂, and ＂risk＂.
2. The weight analysis results of the overall facets: the environmental condition facet has a weight value of 0.248, ranking first, the corrosion control mode facet has a weight value of 0.164, ranking 2, the paint anticorrosion facet has a weight value of 0.158, ranking 3, and the material condition facet has a weight value of 0.164, ranking 2 0.15 ranks 4, the maintenance method facet weight value 0.143 ranks 5, the corrosion speed facet weight value 0.138 ranks 6.
3. Cross-facet weight analysis: Summary table of structural facet weight values. This study conducts overall ranking based on overall weight ranking. It can be seen that in the weight part of the evaluation criteria, humidity is ranked first, reaching 0.087, geographical location is second, reaching 0.08, cathodic protection system is third, reaching 0.058, and member joint method and member shape are the lowest (No. 24), only 0.011.
Keywords: steel bridge, corrosion index, analytic hierarchy process | en_US |