四面受火钢筋混凝土偏压柱承载力的灰色预测  

Gray Prediction on Residual Bearing Capacities of Eccentrically Compressed RC Columns with All-Side Heating

作　　者：徐媛媛[1] 贾玉琴[1] 张玉明[1] 

机构地区：[1]中国矿业大学建筑工程学院,江苏徐州221008

出　　处：《徐州建筑职业技术学院学报》2007年第4期9-13,共5页Journal of XUZHOU Institute of Architectural Technology

摘　　要：根据钢筋混凝土偏心受压柱在不同温度（20℃～650℃）后的承载力试验的结果，利用灰色系统理论建立了预测四面受火后钢筋混凝土偏心受压柱剩余承载力的GM（1，1）模型．并以后验差比值方法检验了模型的精度，检验结果表明该模型的精度较高．Based on the test results of bearing capacities of eccentrically compressed RC columns subjected to different temperatures （20 ℃-650 ℃）, this paper constructed, by the gray system theory, a GM （1, 1） model of predicting residual bearing capacities of the volumes with all-side heating. An examination was made on the accuracy of the model by means of the posterior error ratio, and the results showed that it was of fairly high precision.

关 键 词：钢筋混凝土 偏心受压柱 灰色预测 火灾 承载力 

分 类 号：TU375.3[建筑科学—结构工程]