预应力混凝土梁极限承载力的非线性有限元分析

到目前为止我国已兴建了大量的桥梁,这些桥梁经过长时间使用,承载能力普遍下降,而规范方法对于桥梁结构实际承载力的计算并不准确;为此本文通过预应力混凝土模型梁的试验,对受力过程采用ansys程序进行了非线性有限元分析。

So far a great deal of bridges had been built in our country,which had been used for a long time, and the bearing capacity is widely descended,but it is not precise to calculate practical bearing capacity of bridge structure by the normative method;so through the model experiment of a prestressed reinforced con- crete beam this article adopted ansys program to process a nonlinear finite element analysis according.