摘要
从负温高强混凝土的冻结损伤特征出发 ,利用负温高强混凝土的抗冻临界强度区域的模糊性 ,研究了负温高强混凝土的冻结损伤结构模糊可靠度问题 ,初步建立了模糊可靠度指标 βf 和初指标βα 的概念 ,同时 ,导出了 βf的近似计算公式 ,以C5 0～C6 0级高强混凝土的KI
Based on the frost character of high strength concrete at minus-temperature(HSCMT)freezing damage and the regional fuzziness of frost critical strength for HSCMT,it was investigated that fuzzy reliability of HSCMT freezing damage structure was analysed.The new concept was a preliminary built for fuzzy reliability target β f and initid target β α and derives its approximate calculative formula.Finally,the fuzzy reliability analyses method was used example for C50～C60 HSCMT of K I type crack freezing result.It is for reference when it analysed freezing damage structure reliability of HSCMT.
出处
《低温建筑技术》
2001年第3期1-4,7,共5页
Low Temperature Architecture Technology
基金
黑龙江省自然科学基金资助项目 (黑E96 0 8)
黑龙江省科技攻关项目"负温高强混凝土冬期施工成套技术研究"子课题
关键词
负温
高强混凝土
冻结损伤
结构失效
High strength concrete at minus-temperature(HSCMT),Freezing damage,Structural failure
