Method of determining the exponent in the formula to predict yielding and maximum capacity under combined stress for bending moment‐resisting joints with drift‐pins

Abstract

Abstract An engineering judgment is often used to determine the exponent of the verification formula for combined stresses applied to moment‐resisting joints using drift‐pins. In this study, the exponent was determined based on a mechanical model. (1) The exponent of the verification formula for moment‐resisting joints with drift‐pins subjected to combined stresses was theoretically derived considering the effect of the grain angle given by Hankinson's formula. (2) The combined stress verification formula was validated by numerical analyses, experiments, and past experimental studies. It was confirmed that the method of determining the exponent in this formula is reasonable.

Keywords

• bending moment‐resisting joint
• drift‐pin joint
• exponent
• Hankinson's formula
• projected compressive force
• verification formula for combined stress