MULTISTORY UNDERGROUND PARKING SYSTEM

PURPOSE:To provide an economical underground multistory parking system which is structured reasonably and presents a high parking efficiency. CONSTITUTION:A vertical space 2 for elevation and sinking of cars is provided in the central part of the peripheral mass 1 of a parking place formed in square or circular cylinder constructed deeply under the ground. Over the height of the mass 1 each parking floor 6 which works also as structural floor is so constructed that the spacing in the height direction is distributed large in the over-layer part, in which the water pressure and earth pressure applied to the mass 1 are lesser, and distributed small in the under-layer part where the water pressure and earth pressure are greater, and thereby the parking floor 6 is arranged as hopping out in the form of cantilever from the inside surface of the mass 1.