- 摘 要
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高立堂 董毓利 袁愛民 （青島建筑工程學院266033）
[提要] 對無粘結預應力混凝土連續(xù)板在中跨受火下的反應進行試驗研究，得出了板的溫度場分布、板的變
形情況及支座反力的變化情況，并得出了負彎矩鋼筋長度、預應力度對無粘結預應力混凝土連續(xù)板的影響。為今后無粘結預應力混凝土板火災行為研究提供了依據。
[關鍵詞] 火災 混凝土 連續(xù)板 溫度場 負彎矩鋼筋長度 預應力度 支座反力The behavior of continuous slabs of unbonded prestressed concrete with the middle span under fire are investigated. From the test results, the regularities of temperature field and deformation are presented. The effects of different lengths of negative moment reinforcement and prestressing level on the behavior of the slabs are also suggested. It provides a basis for further research to explore fire behavior of prestressed concrete structures with unbonded tendon.
Keywords: fire; continuous slab; temperature field; negative moment reinforcement; prestressing level; reaction參 考 文 獻
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