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在无垫圈的螺栓联接中,螺栓的载荷取决于外部载荷F_e、预紧力F_i和接合刚度r。这些因素的相互关系如下式所示: Fe/F_(pr)=(F_b/F_(pr)-n)(r-1) 应用该式制成图表见附图,便可迅速估算出螺栓联接的载荷。在图象中,垂直轴表示外载和试验载荷的比值,水平轴是变化外载情形下螺栓载荷与试验载荷的比值。当Fe/F_(pr)=0时,水平轴对应于预紧力,F_b/F_(pr)=1的点由螺栓刚度定出,表示零压紧的直线定义为F_b/F_(pr)=F_e/F_(pr)的一系列点的集合。以预紧力的0.9绘出径向联接刚度线,该曲线可
In the non-washer bolted connection, the bolt load depends on the external load F_e, the preload F_i and the joint stiffness r. The relationship between these factors is shown in the following formula: F / pr = (F_b / F_ (pr) -n) (r-1) Applying this equation to the chart gives a quick estimate of the bolted Load. In the image, the vertical axis represents the ratio of external load to test load, and the horizontal axis is the ratio of bolt load to test load under varying external load. When Fe / F pr = 0, the horizontal axis corresponds to the preload, and the point of F_b / F pr = 1 is determined by the bolt stiffness. The line representing zero compression is defined as F_b / F pr = A set of points of F_e / F_ (pr). The pre-tightening force of 0.9 shows the radial connection stiffness curve, the curve can be