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.

A tensioned panel extended insulation system includes a support structure, a panel support structure and a pair of insulation panels. A telescoping tube extended insulation system includes a support structure and a ceiling sheet material. A rafter clip may be attached to a rafter for attachment of an end of the support structure. A cable arched telescoping tube extended insulation system includes an arched support structure, an adjustable spacer, a cable and the ceiling sheet material. A bar joist extended insulation system includes a support structure, an insulation support structure and an ceiling sheet material. A bar joist extended insulation system may be arched. A system for installing ceiling sheet material in buildings preferably includes either two roller supports or two sheave supports, a middle section, a first end section and a second end section. A rotary strut could also be used to replace an existing strut.

A multi-story boxed wall frame system for reinforcement of multi-story structures includes first and second boxed wall frames disposed one on top of the other and connected together. Each boxed wall frame includes first and second columns, and first and second panel zones attached to the respective first and second columns at their top ends. Each of the panel zones includes yielding members and reinforcing structure at least partially bounding the yielding members. The reinforcing structure is configured to concentrate stresses to within the yielding member. A beam extends between the first and second panel zones in each of the boxed wall frames. The boxed wall frame is configured to resolve external forces into shear force in the yielding member such that the yielding members will yield prior to yielding of the beam and the columns.

The system relates to a system for creating junctions for tubular structures. The system is based on provided a plurality of junctions (7) which are different from each other, formed by pairs of profiles (2) or (2a) or (2) or (2) or (2) secured to each other to form the corresponding junction (7) and to be able to mount and join tubular arms (1) that will form the actual structure. Said tubular arms can be longitudinally aligned, can form a right angle between each other, can form T-shaped configurations, and can meet at junctions with four tubular arms (1), junctions with five tubular arms (1), and junctions with even more arms, in order to allow any type of structure for different constructions, both in terms of buildings and in terms of furniture, inter alia.

The present invention relates to a modular assembly, a site factory, for at least partially enclosing a site during construction of a structure. The modular assembly comprising: a plurality of portal frames, each portal frame comprising two columns and a roof beam, each column and roof beam comprising a plurality of pre-assembled units; a jack-up frame for each column; at least two first rails, each of the first rails being mounted to at least one of the roof beams; at least one second rail slidably mounted to the at least two first rails; and a plurality of panels of a flexible material configured to provide a full enclosure of the site and mounted above the roof beam. The or each second rail is configured to slidably receive at least one lifting device. The pre-assembled units are configured to be connected on site, and lifted using said jack-up frames, to form the portal frames, and wherein each first rail, and the or each second rail are configured to be mounted on the portal frames on site.

A tensioned panel extended insulation system includes a support structure, a panel support structure and a pair of insulation panels. A telescoping tube extended insulation system includes a support structure and a ceiling sheet material. A rafter clip may be attached to a rafter for attachment of an end of the support structure. A cable arched telescoping tube extended insulation system includes an arched support structure, an adjustable spacer, a cable and the ceiling sheet material. A bar joist extended insulation system includes a support structure, an insulation support structure and an ceiling sheet material. A bar joist extended insulation system may be arched. A system for installing ceiling sheet material in buildings preferably includes either two roller supports or two sheave supports, a middle section, a first end section and a second end section. A rotary strut could also be used to replace an existing strut.

The present subject matter relates to structure systems, including structures with integrated solar racking systems, frame systems, post and frame components, and related methods. In particular, the present subject matter relates to posts and frame components that form a frame system that can be used to support a roofing system. The frame system and roofing system can forma structure system. The roofing systems can include integrated solar panels in the roofing structure and/or support the use of insulated roofing panels for non-solar applications to form a roofing system for a building, a structure, or a canopy.