基于灰色系统理论的混凝土徐变试验研究  

Research on the Concrete Creep Based on the Gray Model Theory

作　　者：张开银[1] 毛昌庆[2] 向小斌[1] 刘若南[1] 

机构地区：[1]武汉理工大学交通学院,武汉430063 [2]水路公路交通安全控制与装备教育部工程研究中心

出　　处：《武汉理工大学学报》2008年第8期117-121,共5页Journal of Wuhan University of Technology

摘　　要：根据灰色系统理论建立GM(1,N)模型,运用MATLAB软件编程计算,对计算数据和试验数据进行对比分析,根据需要进行GM(1,1)残差修正,建立了混凝土徐变在加载时间、应力状态和温度环境共同作用下的递推公式,其试验结果与预测结果吻合较好。The age of the concrete, the stress of the body, and the temperature of the surrounding have more effects on the creep of the concrete structures. According to the GM（1 ,n） of the gray model theory and with the aid of the MATALAB soft- ware the forecasted data and the research data have been computed and contrasted. With the necessary residual modification we have made up the step-by-step increase formula, which related to the age of the concrete, the stress of the body, and the tem- perature of the surrounding. It was proved that the forecasted results and the research results were inosculated well.

关 键 词：灰色模型 残差修正 混凝土徐变 

分 类 号：TU313[建筑科学—结构工程]