| 摘要 |
PROBLEM TO BE SOLVED: To improve workability by carrying a waveform steel plate web member hung up on a bridge pier up to the projected position of the existing bridge beam in a state where the side is parallel in the surface of a floorboard. SOLUTION: A corrugated steel plate web member 11 is carried up to the projected position of the existing bridge beam in a state where the side is parallel in the surface of a floorboard 5, and after the side coincides the right angle and vertical directions for the surface of the floorboard 5, it is arranged at a prescribed position between an upper frame 41 and a lower frame 42. The joined frame of a movable working vehicle carrying the waveform steel plate web member 11 up to the projected position of a girder is not needed. Thus, the movable working vehicle can be very easily traveled in a stable state, even when the joined frame is provided, the weight increase of the movable working vehicle is small, deflection occurs in the projected part of the completed bridge beam, care for buckling or the like does not occur, and working efficiency is made good. |
