elevator pit bottom structure

摘要

An elevator pit structure precludes concrete structure requiring long construction period and steel structure of complicated composition such as rib. An elevator pit structure comprises an upper bottom(210) formed to be located upward and a lower bottom(220) disposed below the upper bottom. The upper bottom and lower bottom is arranged away from each other, having a space between them. A supporting member(230) is formed in opposite side between the upper bottom and lower bottom.