| 摘要 |
PROBLEM TO BE SOLVED: To provide an erection device for bridge capable of erecting the bridge even if a building is located close to a considerably sharp curved district, reducing a work execution period and cost, changing an work execution district according to circumstances and flexibly, and receiving the order for construction of a sharp curved road in a built-up area and also constructing it smoothly also in a large span district, moving a girder by arbitrarily reversing the work execution direction to any direction or skipping unexecuted work districts, and constructing work the bridge according to circumstances. SOLUTION: An erection device for bridge comprises a bridge erection girder 7 mounted across the tops of bridge piers adjacent to each other and forming a road by joining bridge segments between the bridge piers and a guide arm 18 installed rotatably at the front and rear parts of the bridge erection girder 7 at any horizontally optional angle. Rails extending in longitudinal direction are installed on the bottom surface of the bridge erection girder 7 and the guide arm 18, respectively and the bridge erection girder 7 and guide arm 18 are put on a guide roller installed on the bridge piers and rotatable in horizontal direction, can be moved linearly in a rod longitudinal direction, and made transferable curvedly and generally in an arc shape.
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