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    • 133. 发明专利
    • ERECTION OF SUSPENDED TYPE BRIDGE FOR PIPE
    • JPH03253602A
    • 1991-11-12
    • JP4728890
    • 1990-03-01
    • KAWASAKI STEEL CO
    • KAWAI YUTAKAYUKITOMO HIROSHI
    • E01D11/02E01D18/00E01D19/16
    • PURPOSE:To simplify erection work and improve the workability, and to obtain a high quality, without using reinforcing girders, by hanging a conduit pipe from a main cable and a wind-resisting cable, while moving backward a temporarily installed pipe, after the conduit pipe is laid within the temporarily installed pipe arranged in advance. CONSTITUTION:Multiple coaxially cylindrical pipes 23A-23C temporarily installed are drawn simultaneously from the main tower 12 side on both banks to the middle of the temporarily installed area. And after closing the pipes they are fastened and suspended from cables 22 for erection. Next, a conduit pipe 13 is inserted within the temporarily installed pipes 23A-23C from the other main tower 12 side and fed successively toward the center, while being welded, and extended to the other main tower 12 side. Next, while the temporarily installed pipes 23A-23C are drawn back from the center to the main tower 12 side, a supporting frame for the conduit pipe is fitted to the conduit pipe 13, and the conduit pipe 13 is supported by hanging it with the main hanger rope 16. At the same time, it is tightened to a wind resisting cable 15 through a wind resisting hanger rope 17. By repetition of this work, the conduit pipe 13 is installed between the main towers 12.