本論文旨在利用有限元素法(Finite element method)來模擬鋼製防火門在不同溫度邊界下的背溫研究。本文採用有限元素分析軟體ANSYS為數值模擬工具，將複雜的防火門外型簡化，分別使用不同的升溫曲線進行加熱試驗。研究在不同參數下，如傳導、對流與輻射效應等係數對防火門背溫的影響。在程式驗證方面，本研究以Wakili的可調式防火門樘作為實驗驗證數據，將數值模擬的結果與實驗數值比較，證實有限元素分析軟體可有效預測溫度變化情形。最後設計一扇有120A防火等級的鋼製防火門，對防火門進行一系列測試，經由模擬結果可做出以下結論: (1)熱傳導係數對背溫的影響最大 ，(2)防火門經由測試求出的溫度比例因子不會因材料的改變而影響結果。

The purpose of this study is to investigate unexposed temperature distribution of a standard fire door under different temperature curves by numerical simulations. In this paper, the finite element method by the software ANSYS is used for numerical simulation tool. We appropriately simplified the complicated structure of fire door and used the different boundaries to test fire resistance. Investigate the effects on unexposed temperature distribution with different parameters, such as the coefficients of conduction, convection and radiation. For the program verification, the Wakili's adjustable door frame is used as the experiment model. The results of the numerical simulation compared with the experimental data. It indicate the finite element software can well predict the temperature distribution. Finally, a 120A fire-safety door is designed to study the temperature distribution under different time-temperature curves. It can be concluded that the conductivity of meterial is an important to unexposed temperature distribution. The temperature ratio factor between different temperature curves will not be affected by the material coefficients.

【1】中華民國家標準 CNS 總號11227,“建築用防火門耐火試驗法”,經濟部中央標準局,台灣,2002.
【2】Ansys, Inc. Ansys 11.0, USA, 2008.
【3】丁育群,鄭邵材,“火災災害與預防”, 建築物火害與災後安全評估法研討會,台灣,1999.
【4】涂耀庭,“防火門阻熱時效之數值模擬”,國立成功大學航空太空工程研究所, 2009.
【5】A. F. Milis, Basic heat and mass transfer, Irwin, UAS, 1995.
【6】D. Joyeux, “Experimental investigation of fire door behavior during a natural fire”, Fire Safety Journal 37(6), pp.605-614, 2002.
【7】T.Z. Harmathy, M.A. Sultan, J.W. MacLaurin“Comparison of Severity of Exposure in ASTM E119 and ISO 834 Fire Resistance Test” , Journal of Testing and Evaluation,Vol(15), No.6, pp.371-375, Nov, 1987.
【8】T. Z. Harmathy, M. A. Sultan,“Correlation between the Severities of the ASTM E119 and ISO 834 Fire” , Fire Safey Journal , Vol(13), No. 2&3, pp.163-168 , 1988.
【9】E. Hugi, K. Ghazi Wakili , L. Wullschleger ,“Measured and calculated temperature evolution on the room side of a butted steel door frame subjected to the standard fire of ISO 834”, Fire Safety Journal , Vol. 44(5) , pp.808-812 , 2009.
【10】International Standard ISO 834-1, “Fire resistance tests—Elements of building construction—Part 1:General requirements” , 1999.
【11】M. Tabaddow, P. D. Gandhi, G. Jones, “Thermo-mechanical analysis of fire doors subjected to a fire endurance test” , Journal of Fire Protection Engineers, Vol. 19(1), pp.51-71, 2009.
【12】UL 10C, “UL Standard for Safety Positive Pressure Fire Tests of Door Assemblies” , First Edition, Underwriters Laboratories Inc. Northbrook, IL USA, 1998.
【13】建築技術規則,內政部營建署,台灣,2009 年12 月.
【14】中華民國家標準 CNS 總號5534,“熱電偶”, 經濟部中央標準局, 台灣, 1982.
【15】中華民國家標準 CNS 總號11073,“銅及銅合金板、捲片”, 經濟部中央標準局, 台灣, 1984.
【16】British Standards Institution BS476, “Fire tests on building materials and structures- part 20 : Methods for determination of the resistance of element of construction（general principles）”,1987.
【17】American Society for Testing and Materials Standard : ASTM E152 “Methods of Fire Tests of Door Assemblies”, 1995.
【18】National Fire Protection Association: NFPA 252, “Standard Methods of Fire Tests of Door Assemblies”, 2008.
【19】Draft for public Comment AS 1530-4, “Methods for fire tests on building materials, components and structures-Part 4：Fire-resistance tests of elements of building construction”, Draft for Public Comment Australian Standard , 2004.
【20】JIS A1311, “Method of Fire Protecting Test of Fire Door for Buildings”, Japan ,1994.
【21】European Committee for Standardization CEN: Eurcode 1,“Action on structures part 1-2:General Action – Actions on structures exposed to fire”, Brussels , 2002.
【22】Eurcode 3, Design of steel structure, part 1.2: general rules structural fire design,ENV 1993-1-2 European Committee for Standardisation, 1995.