Experimental and numerical investigation on structural bolts under compression

Structural bolts have been widely used in prefabricated construction to connect one steel column another due their and structural benefits. In recent years, innovative column-to-column (PCC) connections using normal developed simplify the process of concrete-filled tubular (CFST) columns transfer upper load bottom through bolt-coupler connection. The PCC connection are under compression. Therefore, there is an essential need explore behaviour compression as different from tension. this paper, experimental numerical studies conducted investigate by considering bolt diameters grades. It observed research that failure modes ultimate capacity compared Finally, a simplified design equation determine compression, which will be very useful designing connections.