大型预应力混凝土箱形渡槽结构三维有限元分析

Three Dimensional Finite Element Analysis of Large Prestressed Concrete Box Flume Structure

结合南水北调中线工程中大型预应力混凝土箱形渡槽的结构设计，采用三维有限元技术对其受力性能进行了分析探讨。依此，证明所采用的渡槽结构型式及尺寸，预应力筋的布置方案是合理的。渡槽结构应力、变形满足规范要求。

Based on research of design of the large prestressed concrete box flume structure in the diversion project from south to north of central line, mechanical properties of the flume are explored with the three dimensional finite element method. Accordingly, the structural style, dimensions and the arrangement of prestressed reinforcements of the flume are proved to be reasonable. The stress and deformation of the flume satisfy requirements of the design code.