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REPLACEMENT METHOD FOR MAIN CABLE OF SUSPENSION BRIDGE
REPLACEMENT METHOD FOR MAIN CABLE OF SUSPENSION BRIDGE
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机译：悬索桥主缆的更换方法
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摘要
PROBLEM TO BE SOLVED: To provide a replacement method for a main cable of a suspension bridge in which a main cable of a suspension bridge is replaced without installing a temporary cable along the main cable prior to removing the main cable and eliminating complicated processes to an extent possible.;SOLUTION: A diagonal suspension cable 11 is spanned between a main tower 2 and a stiffening girder 5 of a suspension bridge 1, for holding the stiffening girder 5. A hanger rope 4 is dismantled and removed under the condition, and a main cable 3 is replaced. The new hanger rope 4 is hung from the newly installed main cable 3, and the main cable 3 is made to hold the stiffening girder 5 while the hanger rope 4 supports the stiffening girder 5. Then, the diagonal suspension cable 11 is removed. A diagonal suspension steel tower 13 is installed outside of the main tower 2 when necessary, for having the diagonal suspension cable 11 spanned between the diagonal suspension steel tower 13 and the stiffening girder 5 and holding the stiffening girder 5.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2018,JPO&INPIT
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