台風7513号による八丈島の構造物の被害について

Abstract

By the typhoon of October 5, 1975, the severe damages occurred on Hachijojima Island. Themaximum wind speed 35.5 m/sec and the maximum peak gust 67.8 m/sec were observed there.The structural damages caused by the typhoon were explored. The distinct damages were thatmany roofs with galvanized iron sheets of wooden houses were blown off. The relationship ofdamage rate for collapse agreed with that of other severe typhoons in Japan. From the distribu-tions of damaged houses, it was suggested that the damages depended strongly on large, smalland microscale topography. The damages to glass panes were also investigated.