基于Ansys的大型船闸人字闸门背拉杆预应力设计

Design of prestress applied to back-tie rods of miter gate based on Ansys

大型船闸的人字闸门结构的整体抗扭刚度较小,在自重、风压力以及水压力作用下,闸门在运行过程中容易发生过大的扭曲变形。为了提高人字闸门的抗扭刚度,减少人字闸门在运行过程中的变形,在设计中一般采用对人字闸门背拉杆施加预应力。结合汉江雅口航运枢纽工程船闸,利用Ansys有限元分析软件对人字门背拉杆施加预应力问题进行分析研究。分析结果可为背拉杆预应力的应用提供参考,同时为同类闸门背拉杆预应力的设计计算提供借鉴。

The overall torsion stiffness of the miter gate structure of a large ship lock is very small.Under the action of self-weight,wind pressure and water pressure,the gate is prone to cause excessive distortion during operation.In order to improve the torsional rigidity of miter gate and reduce the deformation of miter gate during operation,the prestress is usually applied to the back-tie rods of miter gate in the design.In this paper,the problem of prestressing force applied to the back-tie rods of the miter gate is analyzed and studied by using the Ansys finite element analysis software,combining the shiplock of the Yakou hydro-junction in Hanjiang River.The analysis results provide reference for the application of the prestress applied to the back-tie rods,and provide reference for the design and calculation of the prestress applied to the back-tie rods of the similar project.