Position: Home > Articles > ANALYSIS OF TEMPERATURE FIELD IN THIN-WALLED FRAME COLUMN WITH T-SHAPED CROSS SECTION EXPOSED TO FIRE
Journal of Shandong Agricultural University(Natural Science Edition)
2013,44
(3)
451-455
火灾下T型混凝土薄壁框架柱温度场分析
作 者：
赵廷胜
单 位：
山东潍坊公安消防支队
关键词：
火灾高温;T型薄壁柱;温度场;钢筋混凝土
摘 要：
采用大型通用有限元软件ANSYS参数化建模技术,研究了火灾下T型混凝土薄壁框架柱在不同受火方式下的温度场分布。研究表明:火灾下T型混凝土薄壁框架柱温度损伤严重区域分布特性与着火时间、受火方式及受火面面积密切相关,三面同时受火时,温度损伤最为严重;T型混凝土薄壁框架柱的抗火性能较差,工程应用过程中应采取防火措施;温度沿薄壁柱厚度的变化呈现非线性趋势,靠近受火面一侧增速较快;受火位置对称分布时,温度亦呈对称分布。研究成果可为进一步开展火灾下T型混凝土薄壁框架柱的受力性能分析提供依据。
译 名：
ANALYSIS OF TEMPERATURE FIELD IN THIN-WALLED FRAME COLUMN WITH T-SHAPED CROSS SECTION EXPOSED TO FIRE
作 者：
ZHAO Ting-sheng;Weifang Fire Detachment of Shandong;
关键词：
High temperature and fires;;thin-walled column with T-shaped cross section;;temperature field;;reinforced concrete
摘 要：
The temperature field distribution of thin-walled reinforced concrete column with T-shaped cross section exposed to fire was analyzed using ANSYS-based APDL technology. The distributing feature of the seriously damaged region is closely related to the ignition time,the way of ignition and the areas exposed to fire. The most seriously damaged region goes hand in hand with the three surface of the column exposed to fire. Thin-walled reinforced concrete column with T-shaped cross section has poor fire resistance performance,thus the fire protection measures should be taken in the practical engineering. Temperature difference along the thickness of thin-walled reinforced concrete column with T-shaped cross section exhibit the nonlinear trend,with the surface exposed to the fire rapidly incremental. Since the distribution of the fire location is symmetrical,the distribution of temperature also exhibits symmetrical feature. The research results lay the basis for further development of the strength performance of thin-walled reinforced concrete column with T-shaped cross section exposed to fire.
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