| 摘要 |
PROBLEM TO BE SOLVED: To provide upper floor slab support beam for arch bridge capable of eliminating the changing work of a feeding roller and the boring work for fitting the feeding roller. SOLUTION: At the time of placing the upper floor slab concrete of a box- type arch rib beam 500 for arch bridge, in an upper floor slab support beam 100 for supporting the upper floor panel placing framework, the upper floor slab support beam 100 is arranged along the projecting direction of the arch rib beam 500, and a tip of the upper floor slab support beam 100 is suspended from a working truck 600 provided at a tip of the arch rib beam 500, and a support 110 having a wheel 111 at a lower end thereof is fitted to the base of the upper floor slab support beam 100 so that the upper floor slab support beam 100 can travel on a lower floor panel 520 of the arch rib beam 500. |
