| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress a change in the side-view arrayed shape of a precast concrete slab arrayed along cables during constructing an upper road type suspended slab bridge where columns are erected on a thin concrete plate-like member (suspended slab) supported by the cables and an upper road girder is supported thereon. <P>SOLUTION: A precast concrete slab 21 is arrayed between end blocks 3 and 4, and then water reserving containers 30 are placed on the precast concrete slab. Along with columns 8 erected thereon and segments 23 arranged to form an upper road girder 9, the amount of water in the containers placed on the precast concrete slab is adjusted to approximately uniform the distribution of a load carried in the axial direction of cables 12a. To adjust the amount of water, various methods are applied. For example, water equivalent to the working load is discharged from the containers near a position where a new load works, to remove the load, or the discharged water can be distributed into the other containers. <P>COPYRIGHT: (C)2013,JPO&INPIT |
