Table 1.
Material properties of specimens.
Fig 1.
Cross-section of the column.
Table 2.
Dimension details and section properties of columns.
Fig 2.
Cross-section of the beam.
Table 3.
Dimension details and section properties of beams.
Fig 3.
Cross-section of the beam end connector.
Table 4.
Details of specimens’ ID.
Fig 4.
Schematic diagram of test set-up.
Fig 5.
Average M-θ graphs for each set of specimens.
M-θ graphs for specimens with column A, (b) M-θ graphs for specimens with column B. Contrary to an idealized graph of connections, these curves indicate non-linear behavior from the starting point. The major reasons for this overall non-linear behavior is due to the relative slippage between the column and the beam end connector, yielding of the tabs, or some points on the end-connector or the column perforation walls due to localized stress concentration, and geometrical non-linearity. The average results of experimental testing are given in Table 5.
Table 5.
Average test results.
Fig 6.
(a) Front view, (b) Back view.
Fig 7.
(a) Column A, (b) Column B.
Fig 8.
Deformation of the beam end connector.
Fig 9.
(a) Deformation of tabs in connector ‘A’, (b) Deformation of tabs in connector ‘B’.
Table 6.
Comparison of the Initial stiffness, Slope to half-ultimate moment and equal area methods.
Fig 10.
Effect of varying beam depth with constant column thickness and number of tabs in the beam end connector.
Fig 11.
Effect of varying column thickness with constant beam depth and number of tabs in the beam end connector.
Fig 12.
Effect of the geometry of the beam end connector.