| 摘要 |
PURPOSE:To move a working vehicle, irrespective of a diagonal cable of a PC diagonal tensioned bridge by supporting a working bed on support members on opposite sides thereof and on opposite sides of a main beam. CONSTITUTION:Each of a pair of support member 1 is composed of a support post 4 integrally incorporated with a hanger part 3 on the inside of the upper part of the latter, lower chord members 5, 5 coupled to the front and rear faces of the lower part of the support post 4, diagonal members bridging between the front end parts of both lower chord members and the upper end of the post 4. The pair of support members 1 are arranged on opposite sides of a working bed 2 having a truss structure. The working bed 2 is engaged with the lower chord members 5, 5 so as to couple the support member 1 and the working bed 2 together. The working bed 2 is supported by the hanger parts 3, 3 on opposite sides of a main beam, outside of a diagonal cable 17 of a PC diagonal tensioned bridge 15. |
