| 摘要 |
PROBLEM TO BE SOLVED: To provide a rainwater falling-preventive bridge drainage basin preventing the strength of a bridge as much as possible from lowering by preventing rainwater falling on a paved section for the bridge from infiltrating into the floor slab of the bridge. SOLUTION: The rainwater falling-preventive bridge drainage basin 10 is formed integrally of a rubber, and a drainage cylinder section 15 is installed separately in the lower section of the basin upper section 14 of the basin body 12. The drainage basin 10 is mounted properly by a fixing means under the state in which the drainage basin 10 is inserted into a brain-basin mounting hole 6 penetrated and formed to the floor slab 3 of the bridge 2. A rainwater falling-preventive flange section 16 is projected extensively over the whole periphery from the outer peripheral surface 14A of the basin upper section 14 of the basin body 12. The flange section 16 is placed on a waterproof layer 4, and disposed under the state in which the flange section is held by the waterproof layer 4 and the paved section 5. COPYRIGHT: (C)2004,JPO |
