| 摘要 |
PROBLEM TO BE SOLVED: To provide an erection method for an arch bridge capable of saving labour for field work, shortening a construction period and reducing construction cost by using ready-made shop fabricated formworks by facilitating connection of a plural number of the formworks to each other. SOLUTION: An erection method for an arch bridge includes each of processes of a steel material setting process to erect steel materials (Melan steel material M) in an arch shape between arch abutments A1, A2 on both banks and a formwark setting process to erect an arch rib by setting divisionally manufactured formwarks P in the circumference of the steel materials and connecting a plural number of the formworks P to each other ion the bridge lengthy direction. Additionally, the formwork setting process includes a formwark lifting process to lift and set the formworks P in the neighbourhood of the steel materials in an intermediate part in the bridge lengthy direction, a formwark moving process to move the lifted and set formworks P in the steel material end part direction by using a formwork moving means (winch 42 for travelling, etc.), provided attached on the steel materials and a formwork connecting process to connect a plural number of the moved formworks P to each other.
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