The roofing of the Crowne Plaza Hotel hall, located in Caserta (Italy), took into account the constraints given by the structural supports to be laid on the top of four existing buildings. The earthquake expected PGA is 0.25g. In order to avoid the important coupling of different structural parts while taking into account the dynamic behaviour of all them, the solution for correctly supporting the roof was found by seismically isolating the roof from the top of the existing buildings. The structural conceptual design included the construction method to be effected by incremental launching of the space frame with the glass panes already fixed. The results of the analysis, the detailing of the structure and the construction method are illustrated.
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