| 摘要 |
PROBLEM TO BE SOLVED: To easily and inexpensively provide a conduit structure for a bridge, without dripping and sticking leakage water to concrete of a bridge body and a pier and a surface of a steel member of the bridge body, by flowing downward. SOLUTION: This conduit structure for the bridge is provided with a pair of parallel wires 37 tensioned over in the bridge breadth direction by a clearance 30 of a bridge joint part J and separate in the direction of the clearance 30, a water cut-off gutter 33 inserting the longitudinal direction of a belt-like elastic sheet material 41 into the clearance 30 and hookingly supporting both upper ends by the pair of wires 37 by bending so that a cross-sectional shape in the longitudinal orthogonal direction of this belt-like elastic sheet material 41 becomes a U shape, and an adhering means 39 fixing both upper side surfaces of the water cut-off gutter 33 in close contact to respective opposed surfaces 31a and 31b sandwiching the clearance 30. The water cut-off gutter 33 can be hookingly supported in a single-flow gradient lower on the other end than one end in the longitudinal direction. A conduit of discharging flowed-in water to an external part from the water cut-off gutter 33, is desirably arranged on the downstream side end of the single-flow gradient of the water cut-off gutter 33. COPYRIGHT: (C)2009,JPO&INPIT
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