| 摘要 |
PURPOSE:To speed up the work by providing jacks below a frame structure, a forwarding and drop prevention devices in the back part, and a device for lifting and transporting forms and reinforcing bars on the upper part. CONSTITUTION:A frame structure 1 is supported by wheels 5 and rollers 4 after jacks 15 are pulled up. And the frame 1 is advanced by 1/2 stroke l by operating a winch 7. After the rollers 4 are moved forward by extending the jacks 15 and supporting the frame 1 on them, the frame 1 is advanced as mentioned before. Then, extending the jacks 15, the frame 1 is supported on them. A drop prevention device 9 is then fastened to a fastening member 10, and a reaction beam 8 is removed. And the rollers 4 are moved forward. Next, upper forms 23 are suspended by trolleys 13, and are set up in desired positions. And side forms 19 are set up. After concrete 26 is placed in the forms 19 and 23, the surface finishing is executed with the forms 23 as footholds. |
