Tests of Bolted Beam-To-Column Connections,

摘要

A test program was recently completed which had as its objective the investigation of various symmetrically-loaded moment-resisting beam-to-column connections which are of extreme importance in the design and construction of steel multi-story frames. All specimens were fabricated of A572,Grade 55steel. The report discusses the results of those specimens which were designed with high-strength bolts for resisting moment. There were three specimens designed and tested with bolts in bearing and one specimen with bolts in a friction (slip resistant) connection. Test results show that the bearing bolted connections initially behave in a similar manner to previous tests. However,at a certain load,these connections exhibit a distinct difference in overall behavior. The load at which this occurs can be predicted.