台風0613号による強風被害について

Abstract

2006年には台風や竜巻，突風による建物強風被害が多発した。とくに，9月の台風13号では八重山諸島や九州において多くの建物が強風被害を受けた。また，同台風は多くの竜巻や突風を伴い，延岡市の竜巻では3名の死者を出し，ＪＲ日豊本線の特急"にちりん"が脱線した。本報では，これら台風0613号による建物の強風被害を中心に，その特徴を検証し，防災・減災の観点から建物の耐風性能を高めることが必要であることを明らかにした。具体的な対策としては，1：屋根葺き材，屋上の設置物等の飛散を防ぐこと。2：雨戸や格子，耐風性能の高いガラスを用いるなど，飛散物に対する防備を高めること。また，3：軽量建物用の耐風設計を整備することが至急の課題であること。等である。

We had many strong wind disasters caused by typhoon, tornados and down bursts in 2006. Typhoon 0613 in September struck Yaeyama Islands, Japan, and significant damage to buildings and houses occurred. In Kyusyu, there was many damage to houses and buildings especially in Nagasaki, Saga and Hukuoka prefectures. This typhoon also brought a number of strong winds and a tornado that struck Nobeoka city in Myazaki prefectures. Three persons were dead and a train was derailed. This paper focuses on the characteristics of the damage to buildings and houses caused by strong wind of Typhoon 0613 and examined effective measures from the viewpoint of preventing and mitigating these disasters. To prevent the claddings and openings from the flying missiles is important to reduce the strong wind damage. The shutters and the wind resistant glasses are effective. To decrease the number of missile is also essential. The damage caused by lightweight houses is notable in urban area.