| 摘要 |
PROBLEM TO BE SOLVED: To provide a replacing method (method) for a stretching device with which realized are comparatively quiet operation, operation at night time, and traffic use at day time and a structure of a temporal forming plate used upon the operation.SOLUTION: A method comprises the steps of: (1) cutting a concrete floor plate, or existing pavement and deposited concrete into a removing section and a leaving section, (2) detachment/removing from main beam of the removing section of the concrete floor plate, or the removing section of the pavement and the removing section of the concrete floor plate and an existing stretching device; (3) arrangement of a temporal forming plate in a space created by removal; (4) arrangement of a joint onto the remaining section of the concrete floor plate; (5) removing the temporal forming plate; (6) arrangement of a new stretching device with precast concrete at the space created by removal; (7) framing of the joint of the remaining section of the concrete floor plate with a joint on the new stretching device, and arrangement of a frame in a gap between the remaining section of the concrete floor plate and the precast concrete of the new stretching device at outside of the framing section; and (8) casting concrete into the frame and performing curing operation. Said operation (4) is performed under the temporal forming plate. |
