| Summary: | 碩士 === 國立中興大學 === 土木工程學系所 === 98 === The bridge is one of the key roles in transportation systems. Due to the necessity of the long-span steel box bridges and the special types of bridges, the steel bridges are increasing their competitive advantages.
Through the collection and comparison of the relevant researches, this research offered a general introduction for a variety of bridge constructions, and then, selected the large-span steel box girder bridges by full-span hoisting method as the main object of the study. Taking "Nantou section of National Highway No. C606A 6 " as an example, the research content includes the substructure and superstructure featuring construction methods, main steps of operations and the keys to success. According to the study, the following results are offered.
(1) A set of feasible construction checklists which are helpful for correctly judging the construction bottlenecks and developing measures prior to them is provided. These checklists can also increase the work efficiency and improve project quality. The checklists are developed for the reference for construction on working sites.
(2) The possible failure modes and the corresponding failure loads were discussed in the study. A linear equation and figure which differentiate the bending failures from shearing failures of the bridges were provided for the reference for engineers in their designing work.
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