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Roman imperial central plan buildings as a free standing architecture
Mikulka, Petr ; Bouzek, Jan (referee) ; Ondřejová, Iva (advisor)
To the basic structural components of centrally planed buildings in the Roman imperial architecture belongs the pronaos or vestibule, the intermediate block, the mantle and the dome of the cella. Occasionally represented is the external portico. The specific feature of the rotunda - mausoleum type is the crypt located within the podium. The exact form of the pronaos at most of the buildings remains uncertain. Commonly anticipated is a temple facade with a fastigium or pediment carried on columns. The later edifices may have a Syrian fronton (Diocletian's mausoleum) or an arcade front (Tor de'Schiavi). The vestibul on the other hand was a closed hall of a square (Sant'Aquilino), but more often rectangular plan. With one exception (Mausoleum of Helena), all of the vestibules have semicircular apses on the short ends. Its primary function consists in integrating the rotunda with another structure. The conception of a central-plan building with an external portico can be related to the small circular peripteral temples, well known from both, the Hellenistic and the late republican Roman architecture ("Tempio di Portunno", Gallienus 'mausoleum, Constantina's mausoleum).The crypt is solely associated with the rotunda - mausoleum type and its form is not standardized but varies from an "H" shaped plan (Gallienus'...
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