钢管混凝土柱的抗火措施  

FIRE DESIGN METHODS OF CONCRETE-FILLED STEEL TUBULAR COLUMNS

作　　者：徐蕾[1] 刘玉彬[1] 

机构地区：[1]大连民族学院土木建筑工程学院,辽宁大连116600

出　　处：《工业建筑》2009年第4期14-17,共4页Industrial Construction

摘　　要：在以往对钢管混凝土柱耐火极限试验研究和理论分析的基础上,针对在钢管混凝土柱外包防火涂料和在核心混凝土中配置专门考虑抗火的钢筋两种防火设计方法进行了研究,在规范ISO-834或GB9978—88《建筑构件耐火试验方法》规定的标准升温曲线升温作用下,分别提供了两种抗火措施下钢管混凝土柱的实用设计方法,并将公式结果与数值结果和试验结果进行对比,均吻合较好。Based on the theoretical and experimental results on fire resistance of concrete-filled steel tubular columns with circular and square sections, two fire design methods, that is, coated fire protection and embedded bars in core concrete were discussed, the composite columns subjected to ISO - 834 or GB 9978-88 Standard Fire. As a result, the corresponding simple expressions were given, such formulas were suitable for incorporation into building codes. The validity of the calculation formulas was established by comparing the calculated fire resistances with those obtained from theoretical model and fire tests.

关 键 词：钢管混凝土 柱 防火保护层 钢管配筋混凝土 

分 类 号：TU398.9[建筑科学—结构工程]