Vertical installation system in which information processing apparatuses are installed

A vertical installation structure providing vertical installation for information processing apparatuses, said vertical installation structure comprising:

• a plurality of placing stages, each of the plurality of placing stages providing installation for at least one of the information processing apparatuses, each of the plurality of placing stages extending in a first direction, at least one of said plurality of placing stages comprising crossbeams extending in a second direction perpendicular to the first direction, each of the crossbeams comprising a bottom plate and standing walls coupled to and vertical to the bottom plate, each of the crossbeams having at least one hole in the respective bottom plate in which is inserted a sleeve through which a passing bolt passes, said passing bolt able to secure at least one of the information processing apparatuses to one of the crossbeams;
• supporting members, coupled to the plurality of placing stages, supporting said plurality of placing stages so that the plurality of placing stages are vertically arranged;
• and
• fire detecting devices arranged along at least one of said plurality of placing stages.