A Summary of Changes and Derivation of LRFD Bolt Design Provisions

Carter, Charles J.; Tide, Raymond H.R.; Yura, Joseph A. (1997). "A Summary of Changes and Derivation of LRFD Bolt Design Provisions," Engineering Journal, American Institute of Steel Construction, Vol. 34, pp. 75-81.

Technical changes made in the 1994 RCSC LRFD Specification for Structural Joints Using ASTM A325 or A490 Bolts include such areas as shear-tension interaction for high-strength bolts in bearing connections and clear distance- based bolt bearing strength. In this paper, corresponding changes are proposed for the AISC LRFD Specification for Structural Steel Buildings and the supporting background information is summarized. Additionally, a change is proposed for the service-load slip resistance reduction factor for shear-tension interaction in slip-critical connections in both documents. Finally, a change made in 1993 AISC LRFD Specification Section J8.1 covering bearing strength of pins is documented.