Determination of the combined heat transfer coefficient to simulate the fire-induced damage of a concrete tunnel lining under a severe fire condition
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- 作者：Soo-Ho Changa ; Soon-Wook Choia ; soonugi@kict.re.kr" class="auth_mail" title="E-mail the corresponding author ; Junhwan Leeb
- 关键词：Tunnel lining ; Fire-induced damage ; Element elimination model ; Combined heat transfer coefficient ; Initial temperature gradient ; Maximum temperature
- 刊名：Tunnelling and Underground Space Technology
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：54
- 期：Complete
- 页码：1-12
- 全文大小：5092 K
文摘
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Fire tests are performed under different initial heating rates and peak temperatures.
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The results of the thermal analyses using EEM are compared with fire test results.
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The combined heat transfer coefficients are derived from the comparison results.
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We obtain the optimized combined heat transfer coefficients in specific fires.
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Two regression equations are derived from whether or not a structural loss occurs.