| 摘要 |
PROBLEM TO BE SOLVED: To provide a bridge structure excellent in manufacturability and workability at low cost, and also excellent in weatherability.SOLUTION: The bridge structure comprises a plurality of steel main girders 1B for supporting a floorboard 1A, and comprises H-shaped steel 2 provided in an upper part of the steel main girders 1B, integrated members 101-103 for forming an H shape by contacting mutual webs of C-shaped steels 3, 4, 4 and 4 having a flange width being 1/2 of a flange width of the H-shaped steel 2 and a steel plate 5 of the same width as a lower flange width of the integrated members 101-103, and a part between a lower flange of the H-shaped steel 2 and an upper flange of the integrated members 101-103 and a part between the lower flange of the integrated members 101-103 and the steel plate 5 are joined by a bolt. Here, the C-shaped steel 4 and the steel plate 5 use a steel material excellent in the weatherability more than the other steel material. |
