弯曲式可伸长锚杆结构及受力变形分析

Structure and deformation analysis of the bending extensible bolt

分析了弯曲式可伸长锚杆的弯曲段结构,探讨了弯曲段结构的影响因素和弯曲段结构与伸长量的关系.利用ANSYS软件研究了弯曲单元的弧度对其受力和变形量的影响.结果显示,弯曲段结构的确定要充分考虑钻孔直径和实际可行性,同时弯曲单元弧度大,其内径位置应力集中现象明显.这为弯曲式可伸长锚杆的结构设计和工程应用提供了参考依据.

The bending structure of the bending extensible bolt is analyzed,and the influence factors of the bending structure and the relationship of the bending structure with elongation are discussed.The influence of the radian of the bending elements to its force and deformation is studied by ANSYS.It concludes that the drilling diameter and the practical feasibility should be considered fully when determining the bending structure.At the same time,while bending unit with large radian,the stress concentration of inside diameter position is obvious.This consequence provides reference for the structure design and engineering application of the bending extensible bolt.