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題 名 | Evaluation of Residual Fire Endurance of Concrete Slabs After Fire Exposure=火災後混凝土版殘餘抗火性能的調查研究 |
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作 者 | 熊光華; | 書刊名 | 警政學報 |
卷 期 | 24 1994.01[民83.01] |
頁 次 | 頁193-208 |
分類號 | 440.327 |
關鍵詞 | 火災; 抗火; 性能; 混凝土版; 殘餘; |
語 文 | 英文(English) |
英文摘要 | One of the important factors that must be considered in evaluating the integrity of structures for further use after exposure to fire is whether the fire endurance of specific structural elements or a structural assembly has been reduced to a value less than that required by the building code. While a building may appear to remain structurally sound after a fire, its structural members' fire endurance may have been impaired to the extent that occupancy cannot be permitted. Reusability of concrete structures after fire is of economic concern to the owner, especially when there is no visible damage to the structural members. The objective of this research is to conduct a smallscale pilot study and use statistical analysis to investigate the possible cause-and effect relationships of three factors on the residual fire endurance: exposure severity, recovery conditioning method, and recovery conditioning time lapse. This research provides information for predicting fire endurance loss of concrete slabs after exposure to fire and, as a consequence, for making decisions on the reusability of the structure. The research results indicate that once the concrete slabs (4 inches thick, no reinforcement and no load) are exposed to a standard fire for more than 30 minutes, their fire endurance will decrease by at least 20%. |
本系統中英文摘要資訊取自各篇刊載內容。