On the Compliance and the Load Factor of Bolted Connections Subjected to Eccentric Loading

Abstract

One of the important subjects of bolted connections is the study of the compliance of the clamped parts and the load factor. In this report, the equation of the axial load of the bolts is derived on the premise of separation and nonseparation, and some experiments are carried out for comparison. The results of this study are concluded as follows: (1) The difference in thickness of the clamped parts scarcely influences the axial load. As the eccentricity of load is increased or the initial clamping force is decreased an extreme increase in axial load is more likely to occuer. (2) It has been recognized that the safety limit of bolted connections is partly the separating limit, but it is recognized that it also extends to the center of the bolt hole. (3) The simplified theoretical equation for compliance of the clamped parts and the load factor is derived, and the axial load can be obtained from it because the calculated values agree with the experimental ones.