抗滑移系数是检查高强度螺栓摩擦型连接面涂层质量的重要参数。从涉及该参数的4个现行有效的国家及行业标准入手,分析了试样的型式、板宽、螺栓孔径、螺栓中心距等因素对抗滑移系数检测造成的影响。结果表明:两栓连接试样较三栓连接试样更能减小试样不均匀变形对检测结果的影响;随着试样螺栓孔径的增大,抗滑移系数随之降低;受到偏心拉伸荷载时,抗滑移系数检测结果偏小。最后对现有检测标准的不足之处进行了讨论,提出了相应的建议。

Anti-slip coefficient is an important parameter for checking the coating quality of high strength bolt friction-type joint surface. From the parameter which was involved in four existing effective national and industry standards, the influence of specimen type, plate width, bolt aperture, bolt center distance and other factors in anti-slip coefficient testing was analyzed. The results showed that the two bole joint specimen could reduce the influence of inhomogeneous deformation of specimen to the test results compared with three bole joint specimen;as the bolt aperture increased, anti-slip coefficient decreased;under eccentric tensile load, anti-slip coefficient was small. Finally, the shortcomings of the existing test standard were discussed, and some suggestions were put forward.