Design of composite finplate and angle cleated connections

Spring-stiffness model for flexible end-plate bare-steel joints in fire

“…Previous studies [11,12] on simple joints (mainly web cleats and fin-plates) have revealed that the depth of the compression zone in the column web can be as great as the depth of the end-plate. Therefore, the effective column web area resisting the compression force is substantial and overstressing of the column web is unlikely.…”

“…The buckling force, F bcwt , of the column web at a given temperature based on the empirical relationship suggested by Ahmed et al [12] may be written as:…”

Semi-rigid composite frames with perfobond and T-rib connectors Part 2: Design models assessment

“…This expression was confirmed by Anderson and Najafi tests [10]. Ahmed and Nethercot [11] also stated that when the composite beam's first stud is very close to the column Fig. 12.…”

“…The first tension bolt line (T-rib bolt line) acts as an independent line from the double web angle group lines and should satisfy the components related to: column web in transverse tension (3), column flange in bending (4), bolts in tension (10), T-rib flange in bending (4*), T-rib web in tension (10**), reinforcing bar in shear (in the T-rib hole) (11*) and reinforcing bar in tension (s, r ). This first bolt line (T-rib bolt line) should also satisfy the components in the compression zone, i.e., column web panel in shear (1), column web in transverse compression (2), beam flange and column web in compression (7), bolts in shear (11) and plate in bearing of the seating angle and beam flange (12) in order to keep the system in equilibrium. The numbers inside each bracket correspond to their component reference number defined in Eurocode 3 [6].…”

“…From the second to the fourth tension bolt line capacity, each bolt line is first evaluated as an independent line satisfying: column web in transverse tension (3), column flange in bending (4), web angles in bending (6), beam web in tension (8), bolts in tension (10), bolts in shear (11) and plates in bearing of web angles and beam flange (12). These bolt lines should also satisfy the components related to: column web panel in shear (1), column web in transverse compression (2), beam flange and column web in compression (7), bolts in shear and plates in bearing of the seating angle and beam flange (12).…”