The structure may be unsafe when clearance pin connections are adopted as three directional hinge support system for spherical lattice shells.
间隙销支座用作三向不动铰应用于支座所在平面为圆形的球面网壳 ,存在较大的结构安全隐患。
In this paper, mechanism analysis of clearance pin was carried out, the rules of pin rolling along pinhole was revealed, the influence of pin movement on structural behavior was calculated, and the factor of insecurity of clearance pin connections was pointed out.
销支座作为一种平面铰支座 ,在国内得到了广泛的应用 ,但国内部分工程采用了销径小于销孔孔径的间隙销支座。