不同天花裝修下之騎樓機車火災行為研究

陳昶翰

[中文摘要]

本研究係探討不同的騎樓天花板裝修型式之騎樓下機車火災行為研究，經由現況調查結果設定機車擺放方式與裝修條件，利用全尺寸實體建築模型進行火災試驗。量測的項目為溫度、熱輻射與火焰高度，分析火焰行為與騎樓各部的受害情形。由試驗結果發現，騎樓下方環境受害程度由高至低依序為木夾板、企口鋁、無裝修、輕鋼架（石膏板）。各種裝修情形之火焰高度皆高於5m，均將造成往上層延燒擴大。除輕鋼架裝修外，單跨騎樓對向3m的輻射均超過木質材料引燃界限1W/cm2，顯示可能引起輻射延燒的範圍超過3m。綜合所有試驗結果，使用耐燃材料裝修具有較高的安全性。

[英文摘要]

This experiment study discusses the fire behavior of motorcycles in the building arcade with different-material ceiling. Series full-scale tests, which include location of motorcycles and materials of ceiling in the building arcade, are conducted. Temperature profiles, heatflux and fire height are also measureed to analyze fire behavior and ceiling damage in the building arcade. It is found that the most serious damage is in the ceiling with wood materials and the next is aluminum, concrete and gypsum. The maximum flame height of the motorcycles fire in all tests exceed 5m and the exposure fire will spread to 2nd floor. The extent of heat flux may be more than 3m because radiation exceed the critical limit of ignition, excluding in the ceiling with gypsum. In conclusion, it is safer to use burn-enduring materials above all tests.