建筑物安全的一种函数评估方法的研究  

Research on a kind of function method for evaluating security of structures

作　　者：张劲松[1] 徐云修[1] 刘利珍[2] 

机构地区：[1]武汉大学水利水电学院,湖北武汉430072 [2]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2003年第4期69-72,共4页Engineering Journal of Wuhan University

摘　　要：针对倒虹吸管的结构特点和工作特性以及安全性影响因素,首先建立带有裂缝的倒虹吸钢筋混凝土管有限元模型,并按照回归分析计算要求确定影响管身安全的影响因子及其变化范围,然后在此回归分析安排下,以结构有限元安全分析代替物理结构模型试验,将计算分析所得的数据进行回归分析,最终得到关于倒虹吸管安全系数的一次多元函数.该函数评估方法在实际应用中,方便快捷,具有较高的评估精度,是一种比较实用的评估方法.Taking the structural characteristics and working characteristics of the siphon and the affecting factors to the security of the siphon into account, the finite element models of the reinforced concrete siphon with a crack are firstly established; and the affecting factors to the security and its ranges are made certainly according to the regression analysis; then structural finite element method has been used to replace structural experimentation according to the regression, the calculated data are analyzed by regression and a simple multifunction of the security coefficient of the siphon is finally gained. In practice, the method for function evaluation is not only convenient and quick, but also with high precision. Therefore it is a quite practical evaluation method.

关 键 词：建筑物 评估 回归分析 有限元 函数 

分 类 号：TU311.2[建筑科学—结构工程]