| 摘要 |
PROBLEM TO BE SOLVED: To achieve construction work in a short time and to secure the safety of travel in a short time after the construction work without the need to limit the speeds of traffic. SOLUTION: A stopper 21, made of a steel rod projecting upward through a hole in a plate secured to the bottom surface of a bridge girder, is installed on a pier 1, and a bridge girder bearing part is removed from the bridge girder 1 or a shoe seat to elevate the bridge girder 6 by the required amount. The bridge girder bearing part is shaped to surround the shoe seat and time stopper 21, and a steel form with an edging member formed on its inner surface and with a height-adjustment tool fitted thereto is installed. Then super-quick-curing mortar is poured into the steel form, is integrated with the bridge girder bearing part, and is cured after pouring. |
