| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an erection method of a precast composite floor slab, capable of closing a gap between an existing floor slab and a precast composite floor slab by rubber packing joint or a narrow infilling steel plate deck when replacing the existing floor slab of a bridge or a viaduct with the precast composite floor slab. <P>SOLUTION: A precast composite floor slab 3 is erected by forming a joint mounting gap 5 with an existing floor slab 2 at a part where the existing floor slab 2 is partially removed, a joint is mounted on the joint mounting gap 5 and a vehicle travel possible state is attained. Then, the steps of partially removing the existing floor slab 2 adjacent to the precast composite floor slab 3, erecting a precast composite floor slab 4, forming the joint mounting gap 5 between the precast composite floor slab and the existing floor slab 2, forming an infilling concrete placing space 7 between the precast composite floor slabs, mounting a joint, placing infilling concrete and attaining the vehicle travel possible state, are repeated for two or more times. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
