哈尔滨工程大学学报2011，Vol.32Issue(8)：997-1000,4.DOI:10.3969/j.issn.1006-7043.2011.08.006
高温下钢筋混凝土梁的时变可靠性分析
A time-variant reliability analysis of reinforced concrete beams under high temperatures
摘要
Abstract
Due to the mechanical properties of reinforced concrete under high temperatures showing significant deterioration, the reliability of reinforced concrete beams is largely discounted. The resistance of concrete in plastic zone under high temperatures was considered in this paper. A simple and feasible time-variant model of the resistance of reinforced concrete beams in fire was given along with a reliability index analysis method of the beams. The reliability of a reinforced concrete beam under the ISO834 standard heating curve was assessed by the first order second moment method. The result shows that, with the increase of the duration of fire action, the reliability of concrete structures is significantly reduced. This method may be used in reliability assessment of reinforced concrete structures under an environment with fire.关键词
钢筋混凝土/可靠度指标/高温/一次二阶矩法Key words
reinforced concrete/reliability index/high temperature/first order second moment method分类
能源科技引用本文复制引用
乔牧,王振清,朱大雷,韩玉来..高温下钢筋混凝土梁的时变可靠性分析[J].哈尔滨工程大学学报,2011,32(8):997-1000,4.基金项目
中央高校基本科研业务费专项资金资助项目(HEUCF20100201). （HEUCF20100201）
