混凝土徐变效应的计算机分析

Computational Analysis of Concrete Creep Effect

采用按龄期调整的有效模量（ＡＡＥＭ）法编制了考虑混凝土徐变效应的有限元分析程序。在程序中将ＣＥＧ－ＦＩＰ１９７８模式的徐变系数所用图表改用函数表达式写出，并用算例验证了该程序。计算结果还表明加载初期不可恢复的变形不可忽略。

According to the age adjusted effective modulus (AAEM) method, a computing program which taking account of concrete creep effect is presented in this paper. Mathematical functions of creep coefficient are also introduced. An example shows that unrecoverable deformation of concrete at the preliminary stage of loading can not be neglected.