PURPOSE: To provide a movable bridge capable of increasing the span of movable bridge girders and being bridged across a channel such as a river having a large width.
CONSTITUTION: Base end sections of the first and second bridge girders 10, 20 extended slantly upward toward the opposite banks 8 are vertically rotatably hinge-coupled and supported on bridge abutments 9 of both banks 8 respectively, a guide 30 is provided on the first bridge girder 10, and a gear (coupling body) 42 coupled with the guide 30 is provided on the second bridge girder 20 on the rear side of the intersection sections 18, 25 of the bridge girders 10, 20 respectively. When the gear 42 is lifted along the guide 30 by a power device 50, the bridge girders 10, 20 are lifted, and a ship can pass below the bridge girders 10, 20. The bridge girders 10, 20 invariably form a straddle-mounted structure via the three-hinge structure by the coupling of the gear 42 and guide 30 at the base end sections of the bridge girders 10, 20 and the intersection sections 18, 25 of the bridge girders 10, 20, and a large span is available.
| JPH0726368 | [Title of Invention] Connecting Bridge |
| WO/2012/069825 | BRIDGE APPARATUS |
Yoshito Hatayama
Kengo Iwasa
Nakamuta Naoaki
