The invention discloses a calculation method of ultimate moment resistance and moment-rotation relation for steel beam to concrete-filled steel tube column connections with bidirectional bolts, wherein the calculation method as follows: calculate ultimate moment resistance values of the connection for different failure modes, i.e. yielding of the endplate or T-stub in bending, failure of bolts in tension, failure of column in transverse compression, failure of panel zone in shear, and yielding of the steel beam in bending; the smallest one in the five ultimate moment resistance values is taken as the ultimate moment resistance of the connection; obtain the initial rotational stiffness of the connection by the test, simulation or theoretical calculation; then, the moment-rotation curve of the connection is obtained by substituting the initial rotational stiffness and the ultimate moment resistance into the proposed exponential model for the moment-rotation relation.

A support column extends in a longitudinal dimension and includes a plurality of outer hollow longitudinal structures. Each longitudinal structure defines an interior passage extending along a length of the longitudinal structure. The support column includes a plurality of inner members. The plurality of outer hollow longitudinal structures are aligned end-to-end along a single axis. The interior passages of the plurality of outer hollow longitudinal structures cooperate to define an interior passage of the support column. The inner members are aligned end-to-end along the single axis within the interior passage of the support column so that opposed longitudinal ends of each of the inner members extend to respective longitudinal ends of each adjacent inner member. At least one end of at least one inner member is longitudinally offset from every longitudinal end of the plurality of outer hollow longitudinal structures.

Method and system disclosed herein provides generating a three-dimensional construction grid based on a data file generated by an architectural software, wherein the three-dimensional grid includes three-dimensional position information of various structural building components; displaying the three-dimensional construction grid using a display device of a computing device; receiving information of various non-structural building components, the information including location of the non-structural building components on the three-dimensional grid; associating the non-structural building components to one or more of the structural components of the three-dimensional grid; and automatically generating a plurality of specifications for the non-structural building components.

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.

Screen device in which two beams (1, 2) in the mounted state of the screen device are mutually coupled with the aid of: a first coupling piece (3), comprising a first mounting cavity (4) for the fitting herein of a first part of the first beam (1); and a second mounting cavity (5) for the fitting herein of a first part of the second beam (2); and a second coupling piece (6), comprising a first mounting cavity (7) for the fitting herein of a second part of the first beam (1), extending opposite the first part; and a second mounting cavity (8) for the fitting herein of a second part of the second beam (2), extending opposite the first part.

Method and system disclosed herein provides generating a three-dimensional construction grid based on a data file generated by an architectural software, wherein the three-dimensional grid includes three-dimensional position information of various structural building components; displaying the three-dimensional construction grid using a display device of a computing device; receiving information of various non-structural building components, the information including location of the non-structural building components on the three-dimensional grid; associating the non-structural building components to one or more of the structural components of the three-dimensional grid; and automatically generating a plurality of specifications for the non-structural building components.

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.

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.

An assembly column-beam connection component includes a vertically-oriented connecting body for connecting to columns and a horizontally-oriented connecting body for connecting to beams. One end of the horizontally-oriented connecting body is connected to the vertically-oriented connecting body. The vertically-oriented connecting body includes sequentially arranged front sidewall, left sidewall, rear sidewall, and right sidewall. Each of these sidewalls features concave portions extending along the vertically-oriented connecting body's length in the vertical direction. The concave portions on the left sidewall and rear sidewall are positioned near the junction of the left sidewall and rear sidewall, while those on the front sidewall and right sidewall are situated at their respective centers. Multiple installation through-holes for connecting to columns are provided on the various sidewalls of at least one end of the vertically-oriented connecting body.