摩擦型高强度螺栓连接件滑移阶段工作性能研究

Study on the Working Performance of Friction-Typed High-Strength Bolt Connectors in Sliding Stage

抗滑移荷载是检验抗滑移系数的重要参数,按现行规范对高强度螺栓连接件滑移荷载判定的某些判据,受试验假象影响,得到的滑移荷载可能不准确。文中通过自行设计检验装置,对连接件滑移阶段的工作性能展开研究,研究结果表明:试验机回针不能反映滑移的整个工作性能,试件滑移先于试验机回针。因此,将部件间的滑移量作为判断滑移荷载更为合理。

Slip load is an important parameter to test the anti-slip coefficient. It may not be accurate due to false appearance in accordance to the criterion of high-strength bolt connectors. Working performance of anti-slip connectors in sliding stage was studied by self-designed checking device in this paper. The results show that pointer return could not reflect the whole slipping performance for pointer return is preceded by slip. Therefore, it is more reasonable judging the slip load by connectors slid.