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。本文以某斜置单层球面网壳工程为例 ,分析了间隙销支座受力体系 ,用数据说明销在销孔中将发生滚动 ,斜置球面网壳销支座切向将产生下滑 ,造成周边各个支座受力不均 ,部分支座顶紧、部分支座腾空 ,结构受力状态失控、不利 ,结构存在安全隐患 The gap pin bearing is used as a three-way non-moving hinge and is applied to a spherical reticulated shell with a circular plane. Therefore, there is a big structural safety hazard. In this paper, an inclined single-layer spherical reticulated shell project is taken as an example to analyze the bearing system of the clearance pin. The data shows that the pins will roll in the pin hole, Resulting in uneven bearing around the various support, some of the top bearing tight, part of the support vacated, the state of structural control out of control, unfavorable, the structure there is a security risk