大跨度预应力渡槽静力分析

沙河渡槽是我国南水北调中的重要工程,在设计中采用了跨度45 m的大型渡槽.为了给施工和设计提供参考,针对预应力钢筋混凝土能极大提高混凝土结构抗拉抗裂强度的特点,在优化配置预应力钢绞线的基础上运用有限元技术对渡槽的位移和应力进行了计算.计算结果表明,渡槽应力、变形满足设计要求,因此渡槽在静荷载作用下是安全的.

The Static Analysis of Big Span Pre-stressed Aqueduct

Shahe aqueduct is an important project in the South-to-north Water Diversion project of our country,and it is designed by the big span aqueduct of 45 meters.For the sake of providing reference to the construction and design,according to the fact that pre-stressed reinforced concrete can greatly improve the tensile strength and rupture strength,and based on the optimical configuration of pre-stressed strand,the FEM is adopted to calculate the stress and displacement of the aqueduct.The results indicate that ...