COMPOSITION OF THE EXTERIOR VOID SPACE OF THE FIREPROOF BELT BUILDINGS IN YOKOHAMA

In this paper, the spatial composition of fireproof belt buildings in Yokohama are typologically analyzed in the relationship between their 'void,' which is defined as the exterior open space volume above the void elements, such as courtyard, path, parking, terrace and low building's roof behind the main building mass, and neighboring voids in their urban blocks. Firstly, the composition of the main void belonging to the fireproof belt building are classified into several types from their relationship with streets and the variation of the set of void elements. Secondly, the sets of the neighboring void elements are classified into some types. Thirdly, the composition of the whole void is analyzed from the combination of the main void types and neighboring void types, and classified into the several types. As the result, it is figured out that the characteristics of the exterior void space can be defined by the combination of the 'isolation - connection' aspect mainly dominated by the relationship with the neighboring voids, and 'open - close' aspect mainly dominated by the main void's connection with surrounding streets.