| 摘要 |
PURPOSE: A precast structure is provided to use a single structure in various purposes, since a second cavity is formed on a side part. CONSTITUTION: A precast structure comprises a sidewall portion(10) and an upper plate portion(20). The sidewall portion is installed in parallel at regular intervals. The sidewall portion comprises one or more cavities. A joint part(12) for a sidewall is formed outside the upper part of the sidewall. The upper plate portion is assembled with a part of multiple sidewall portions. The upper plate portion comprises the joint part(22) for an upper plate. |
