The invention relates to panelized system for a structure. The panelized system typically comprises a plurality of joists structured to be operatively coupled to one or more support members of the structure. Each of the plurality of joists are associated with a joist seat comprising a toe and one or more joist apertures. Typically, at least one or more of a plurality of joist seats are operatively coupled to the one or more support members using a toe weld between the toe and the one or more support members. However, an aperture weld between the one or more joist apertures and the support members is omitted. Moreover, a fastener between the one or more joist apertures and the support members is also omitted.

A beam can comprise a plurality of steel channel members that extend along a longitudinal axis. The plurality of steel channel members can cooperate to define an interior volume that is configured to receive concrete therein. The plurality of steel channel members can comprise a first C-shaped channel member defining a channel therein and having first and second flanges. The channel of the first C-shaped channel member can define a portion of an outer boundary of the interior volume. The first and second flanges can extend into the interior volume. A plurality of internally projecting members can be spaced along the longitudinal axis. The plurality of internally projecting members can extend into the interior volume from a steel channel member of the plurality of steel channel members. A strap can extend across the interior volume so that when the interior volume is filled with concrete, the strap engages the concrete.

A building structure including a first building member and a second building member may be connected by a plurality of fasteners, each fastener having a head, a threaded portion having a through hardness of between HRB 70 and HRC 40, a thread-forming portion of at least HRC 50 hardness enabling the fastener to form threads in at least the second steel building member, and a fluted lead portion of at least HRC 50 hardness with a nominal diameter between 70 and 95% of major diameter, such that the fastener is capable of providing a ratio of strip torque to thread-forming torque of at least 3.0 and a ratio of strip torque to drive torque greater than 6.0 when the second steel building member having a thickness of 0.25 inch and the fluted lead portion having at least one diameter within nominal diameter between 80 and 98% of major diameter.

Structural truss panels include first, second, third, and fourth horizontal elongated members and first and second vertical elongated members fastened to the first, second, third, and fourth horizontal elongated members. The first and fourth horizontal elongated members form respectively a top and a bottom of the structural truss panel. The first and second vertical elongated members forming respective sides of the structural truss panel. The structural truss panel further includes and an angled webbing fastened between the first and second vertical elongated members and the first and second horizontal elongated members thereby creating an integrated web truss within the structural truss panel. The structural truss panel includes first, second, and third brace members forming a V-braced truss panel.

A prefabricated column assembly includes a hollow tubular column having a longitudinal axis. A gusset plate assembly includes a plurality of gusset plates connected to the column and extending laterally outward from the column in planes generally parallel to the longitudinal axis of the column. A first pair of the gusset plates extends laterally outward from the column along a first axis and defines a space for receiving an end portion of a first beam for mounting the first beam on the first pair of gusset plates. A second pair of the gusset plates extends laterally outward from the column along a second axis that is nonparallel and non-coincident with the first axis. The second pair of gusset plates defines a space for receiving an end portion of a second beam for mounting the second beam on the second pair of gusset plates to provide a bi-axial joint connection.

A column and beam connection structure for connecting a steel H-beam to a column uses an external diaphragm. The external diaphragm includes a plurality of divided diaphragm segments such that each diaphragm segment has a column plate abutting on the column. A diaphragm segment which is arranged along the steel H-beam among the plurality of divided diaphragm segments has a beam plate installed in a flange of the steel H-beam. The beam plate has an end portion in which the column plate is provided. A joining surface between the diaphragm segments is placed in a vicinity of a corner portion of the column so that only the column plate of one of the diaphragm segments abuts on each column surface of the column. A joining member fastens to fix between the diaphragm segments such that contact pressure is applied from the column plates to the surface of the column.

The disclosed technology provides a seismic yielding connector. The seismic yielding connector includes a U-shaped plate configured to connect a side stud of a panel to another component of a panel and a yielding plate located between the U-shaped plate and the side stud of the panel. A high-strength bolt connects the U-shaped plate, the yielding plate, and the side stud of the panel to a structural column. A bushing is located between the U-shaped plate and the structural column.

Structural truss panels include first, second, third, and fourth horizontal elongated members and first and second vertical elongated members fastened to the first, second, third, and fourth horizontal elongated members. The first and fourth horizontal elongated members form respectively a top and a bottom of the structural truss panel. The first and second vertical elongated members forming respective sides of the structural truss panel. The structural truss panel further includes and an angled webbing fastened between the first and second vertical elongated members and the first and second horizontal elongated members thereby creating an integrated web truss within the structural truss panel. The structural truss panel includes first, second, and third brace members forming a V-braced truss panel.

A joint connection structure of a building framework includes a column assembly including a column and a pair of gusset plates connected to the column on opposite sides of the column and extending laterally outward from the column. A beam assembly includes a beam having upper and lower flanges and an end portion received between the gusset plates. The beam assembly is bolted to the column assembly. A channel is attached to one of the column and beam to facilitate connection of the beam assembly to the column assembly. The channel defines an elongate slot for attaching the channel to said one of the column and beam.

A frame system for a building structure includes beam members. Each beam member includes two opposed, parallel flanges. A web is interposed between the flanges. Spreader members include two opposed, parallel side flanges, a web interposed between the side flanges and two opposed end flanges bridging the side flanges at respective terminal ends of the web. The beam members and the spreader members are configured to be fastened to each other to form a frame assembly.