A STUDY ON SWING REMOVAL METHOD OF INCLINED BENTS OF THE MEGAMI BRIDGE

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  • 女神大橋斜ベントのスイング撤去工法に関する考察

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Abstract

The Megami Bridge (cable-stayed bridges, center span length of 480m) was constructed at entrance of the Nagasaki Port of Nagasaki Prefecture. The balancing girder erection method using inclined and vertical bents was adopted. <br>This paper examined the adoption of the wire clamping jack as a method of the removal of inclined bents in side spans. For the wire conversion caused by a horizontal movement of the removal material, the durability of the MC nylon was confirmed by the material test. The wire conversion equipment using MC nylon was arranged in the box girder. The effectiveness of swing removal with the wire clamping jack was proven in construction.

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