Experimental database on connections for composite special moment frames (C-SMFs) (Version 2)

Finally, Group 5 includes 77 tests of connections with other details.</p> <p>For the first four groups, the following details were collected as applicable: (1) joint location (interior or exterior), (2) loading type (cyclic or monotonic) and protocol, (3) axial load ratio, (4) weak link (beams, columns, or panel zone), &nbsp;(5) geometric and material properties of CFT columns and steel beams, (6) test results (failure modes, ratio of maximum beam moment to beam plastic flexural strength (<em>M_max</em> / <em>M_p</em>), and story drift angle), and (7) figures showing connection details and experimental load-deformation responses.

Properties of CFT columns included the length (<em>L_c</em>), steel tube diameter (<em>D</em>) or width (<em>B</em>), steel tube wall thickness (<em>t</em>), steel yield stress (<em>F_y</em>), and concrete compressive stress (<em>f&rsquo;_c</em>). Properties of steel beams included the length (<em>L_b</em>), depth (<em>H</em>), flange width (<em>B</em>), flange thickness (<em>t_f</em>), web thickness (<em>t_w</em>), and steel yield stress (<em>F_y</em>).

The story drift angle capacity is defined as the angle corresponds to 0.8<em>M_p</em> or 0.8<em>M_max</em> (for specimens that cannot develop <em>M_p</em>). For connections using diaphragms (Groups 1 and 2), details of the diaphragm were also collected, including the thickness (<em>t_d</em>), width (<em>b_d</em>), opening hole dimension (for internal and through diaphragms), width (for external and through diaphragms), and yield stress.

For DST connections (Group 3), details of the split-tee (flange width and thickness, and stem length and thickness) and bolts (numbers, dimensions, and tensile strength) were collected as well.&nbsp;</p> <p>For the last group (Group 5), the following details were collected: (1) cross-section shape of CFT columns, (2) loading type (cyclic or monotonic), and (3) connections details (prescriptive description and figures). &nbsp;Additional details are available in the provided references.</p>