| 摘要 |
PURPOSE: A steel pile capable of extraction of H-section section steel is provided to enable a function for transferring power in the progress of construction. CONSTITUTION: A steel pile capable of extraction of H-section section steel comprises soft materials(62,63) and a sheath material(61). Damaged or deformed in the extraction of an H-section beam, the soft material forms a path in which the H-section section steel(60) moves. The sheath material surrounds the H-section beam and the soft materials. The sheath material prevents concrete which is not hardened from being contacted with the H-section beam and the soft materials. |
