六面体单元预应力钢束等效刚度计算研究

Research on calculation of equivalent stiffness of hexahedral element prestressed tendon

从有限元方法的基本原理入手,推导得到混凝土和钢束共同作用下体单元的等效刚度的计算方法,指出该方法可以适应各种不同形状的预应力钢束,并经算例检验,证明了该方法具有较高的精度,从而给桥梁结构的研究带来帮助。

From the basic principle of the finite element method,the study induces the calculation methods for the equivalent stiffness of the body elements under the common effect of the concrete and the tendon,points out the method is suitable for the prestress tendons with various shapes,and proves by the checking and inspection that the method has higher accuracy,so it is helpful for the research on the bridge structures.