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標題: 溫度對構件挫屈的影響
The temperature frustrates the influence which to the component bends
作者: 陳明淵
Chen, Ming-Yuan
關鍵字: temperature
buckling load
出版社: 土木工程學系所
引用: [1] James M.Gere,”Mechanics of Materials”,sixth edition,Thomson Brooks/Cole [2] 謝元裕,”結構穩定學”文笙書局,1999 [3] 郭厚村,"模態參數於結構桿件之挫屈載重分析”國立中興大學土木工程研究所碩士論文,1990 [4] 劉正達,"模態參數於版構件之挫屈載重分析”國立中興大學土木工程研究所碩士論文,1991 [5] 許榮輝,"結構組件挫屈載重檢測分析模式”國立中興大學土木工程研究所碩士論文,1993 [6] 洪瑞堅,”挫屈載重之試驗與分析” 國立中興大學土木工程研究所碩士論文,1994 [7] 林政毅,"圓版挫屈載重震動試驗分析模式”國立中興大學土木工程研究所碩士論文,1996 [8] Go,C.G.,Lin,Y.S.and Khor,E.H.,”Experiment Determination of the Buckling Load of a Straight Structural Member by Using Dynamic Parameters”,Journal of Sound and Vibration, 1997,205(3),257-264 [9] 郭俊昇,"模態參數於初始彎曲桿件之挫屈載重試驗分析”國立中興大學土木工程研究所碩士論文,1999 [10] “Handbook of Fire Protection Materials For Structure Steel” , Australian Institute of Steel Construction [11] ECCS-Technical Committee 3-Fire Safety of Steel Structures,”European Recommendations for the Fire Safety of Steel Structures”,Elsevier Scientific Publishing Company,New York,1983 [12] 沈進發、沈得縣,「鋼筋混凝土結構物火害後之安全評估程序」,內政部建築研究所專題研究計畫成果報告 MOIS 860001,1997 [13] M.S.Abram,”Compressive Strength of Concrete,at Temperatures to1600℉”,Temperature and Concrete. [14] 王松永,”木構造古蹟與歷史建築物之火災性狀與防火措施”, Journal of Cultural Property Conservation/Vol.1(1)/pp. 18-26 [15] 王松永,蔡明哲,” 省產中小俓木製造集成材之耐燃性能與火災 性狀評估研究成果報告”, 行政院國家科學委員會專題研究計 畫NSC 95-2313-B-002-099-,2007 [16] 內政部營建署,”木構造建築物設計及施工技術規範” [17] Francisco JONG and Paul CLANCY,”Compression Properties of Wood as Functions of Moisture, Stress and Temperature”, Second International Workshop _Structures in Fire_ – Christchurch – March 2002 [18] 戴嘉鴻,張起明,”防火材料設備的可靠度評估”,中華民國第六 屆可靠度與維護度技術研討會論文集,民國94年
摘要: 本文旨在探討結構物因溫度效應對結構系統挫屈載重的影響。以結構系統之振態與自然頻率,經由力法分析,求取結構系統受溫度效應之挫屈載重。 根據研究顯示:(1)鋼構件、混凝土構件因溫度效應使得材料的彈性模數產生變化,並使構件產生熱應力,造成鋼構件在溫度約400℃時,承載力約為原本80%,溫度600℃時,承載力約為原本51%。而混凝土構件溫度約200℃時,承載力約為原本82%,溫度500℃時,承載力約為原本49%。 (2)木構件由於火害會產生表面炭化,使斷面積、慣性矩減少。在斷面積為140×260mm2之木材,其半小時之剩餘承載力約為原本26%,一小時之剩餘承載力約為原本2%。斷面積為203×260mm2之木材,其半小時之剩餘承載力約為原本39%,一小時之剩餘承載力約為原本9%。
In this study, the effects of temperature on the mechanical behaviors of the structure, made by different materials are investigated. The buckling shape function and natural frequency are utilized to establish an analytic model for predicting the buckling load of the structural system under various temperatures. Due to temperature effects, the elastic modulus of steel and concrete members is reduced. As temperature is up to 400 ℃, the bearing capacity of steel member is reduced to 80% of the original. As temperature is up to 600 ℃, the capacity of steel member is reduced to 51% of the original. For concrete member, when the temperature is up to 200 ℃, its bearing capacity is reduced to 82% of the original. When the temperature is up to 500 ℃, its bearing capacity is reduced to 49% of the original. Resulting from fire damage, the surface of wood members will be carbonized. The cross-section area and moment of inertia of wood are both reduced. During half hour fire duration the 140×260 mm2 wood's residual bearing capacity is reduced to 26% of the original and for 203×260mm2 wood, its residual bearing capacity is reduced to 39% of the original.
其他識別: U0005-2108200912215000
Appears in Collections:土木工程學系所



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