“短锚+轻架”联合支护体系支护特性

On Supporting Property of Short Anchor and Light Frame

针对"短锚+轻架"联合支护体系支护特性问题,在分析其结构组成的基础上,采用三维建模软件Creo和Nastran数值计算软件研究分析了"短锚+轻架"联合支护体系支护的刚度和强度特性.研究发现:在刚度特性方面,支护体系顶部和两侧分别以垂直位移和水平位移为主,且顶部和两侧变形呈现出阶段性分布特征;在强度特性方面,支护体系Mises应力分布具有明显规律性,各断面最大Mises应力出现在工字钢翼缘处,锚杆和锚索对支护体系的Mises应力起到了一定的控制作用.

Aimed at the supporting characteristics of “short anchor + light frame” support system, based on the analysis of its structure and by the means of numerical calculation, this paper researches on the stiffness and strength characteristics of “short anchor + light frame” support system with Creo and Nastran. Results show that in the aspect of stiffness, the vertical displacements of the support system top and horizontal displacements of the support system sides are large respectively, and they both have significantly distributed characteristics. In the aspect of stiffness, the distribution of Mises stress in the support system is regular and its maximum value appears on the edge of I-beam, and the anchors and anchors play a certain role in controlling the Mises stress of the support system.