| 摘要 |
PROBLEM TO BE SOLVED: To deliver a girder from an existing bridge girder toward a traveling girder located at a stepped location by carrying out continuous work, and to smoothly, safely, and positively install the girder at a predetermined location, related to a girder installation device and a girder installation carriage, for example, the installation work of a bridge girder. SOLUTION: Two self-propelled two-stage carriages 3 are arranged on a rail 2 of the existing main girder 1, a turn table mechanism 6 is set between an upper-stage slave carriage 5 and a lower-stage master carriage 4 of each two-stage carriage 3, and height adjusting jacks 7 are arranged between the turn table mechanism 6 and the master carriage 4. In this manner, front and rear ends of a girder member 8 to be installed are borne by the two two-stage carriages 3. Then, after the master carriage 4 reaches the front end of the existing main girder 1 and stops, the slave carriage 5 is started to travel on a rail 2" along the traveling girder 14, and thus the girder member 8 is delivered from the existing main girder 1 to the traveling girder 14. COPYRIGHT: (C)2009,JPO&INPIT
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