After the Hyogoken-Nanbu earthquake on 17th January 1995, which brought about enormous damage to Hanshin area, many large span roof spaces were converted as temporary refuge spaces for numerous refugees. In this report the results of investigations, carried out by spatial structure researchers, of damage to large span roof structures of about four hundred and thirty school gymnasiums and public sports halls are summarized. Types of damage to large span roof structures are classified and distribution of damaged structures is shown. Special remarks are put on the damage to suspended non-structural elements, such as ceilings, lights and acoustic facilities.
