A joist reinforcement apparatus is disclosed for a joist having a top chord, a bottom chord, and plurality of cross supports extending between the top chord and the bottom chord, the plurality of cross supports forming panel points along the joist. A panel point bracket assembly can be securable about one of the panel points of the joist. A load bracket assembly can be securable to either the top chord or the bottom chord of the joist. An adjustable coupling assembly can have a first end pivotally connected to the panel point bracket assembly and a second end pivotally connected to the load bracket assembly. The apparatus can help provide non-welded single point load reinforcement on a chord of a joist.

The assembled light steel structure energy-saving composite wall in the present invention comprises: a cement board and/or ceramic tile, a column, a support rod, a cross beam, a bottom plate, a diagonal brace and a diagonal draw steel bar. In the thickness direction of the composite wall, the horizontal side of each group of columns is outside the composite wall, a plurality of support rods and diagonal braces are installed between the four second vertical sides of the columns of the each opposite group of columns. In the width direction of the composite wall, a plurality of cross beams and diagonal draw steel bars are installed between the first vertical sides of the column of the adjacent groups of columns. On both sides of the thickness direction of the composite wall, the horizontal sides of the column of the two adjacent columns are provided with a cement board and/or a ceramic tile inserted by a strip fastener and a strip, and the space enclosed by the cement board and the ceramic tile, the cement board and the cement board or the ceramic tile and the ceramic tile is filled with the filler. The assembled light steel structure wall system is simple to assemble, convenient to transport, operate and maintain, energy-saving and heat-preserving, the wall installation and wall decoration is completed at one time.

A work platform system for implementation in relation to a structure, as well as subsystems and components thereof and methods of implementation and use relating thereto, are disclosed herein. In at least one embodiment, the work platform system includes a first pair of flexible elements and a second pair of flexible elements, where a respective first end of each of the flexible elements is coupled at least indirectly to a first support component and a respective second end of each of the flexible elements is coupled at least indirectly to a second support component. The work platform system can further include a plurality of panel structures supported upon the flexible elements, a suspension component, and a clamp structure coupled to at least one of the first pair of flexible elements and the second pair of flexible elements. The work platform system can include one or more support extension.

In one implementation, a metal deck is provided that includes a plurality of deck components formed in a contiguous metal sheet. Each of the deck components includes a plurality of folded ribs formed along the length of the metal deck. Each of the plurality of folded ribs are configured such that one or more trusses of a building may fit between the plurality of folded ribs. The metal deck may be used to complete the structural diaphragm without using concrete.

A reinforced beam system comprises at least one pair of angularly spaced, corner-connected beams configured with two oppositely oriented triangular closed head portions, and a web interposed between head portions; a plurality of reinforcement elements forcibly contacting an interior wall of the corresponding head portion; and for each pair, at least one angled connector. A first leg of the angled connector abuts the flange of a second head portion of the first beam and is connected to a first reinforcement element inserted within the second head portion of the first beam, and a second leg of the angled connector abuts the flange of a first head portion of the second beam and is connected to a second reinforcement element inserted within both the first head portion of the second beam and a first head portion of the first beam. A beam system in one embodiment is devoid of reinforcement elements.

A truss includes an upper angle assembly; the upper angle assembly including an upper gap positioned in the lower angle assembly; a lower angle assembly, the lower angle assembly including a lower gap positioned in the lower angle assembly; and at least one of: a web member; and a bridge web member. The at least one of the web member and the bridge web member is positioned within the gap of at least one of the upper angle assembly and the lower angle assembly.

A structural support system of paired top and bottom rails connected by a plurality of vertically-oriented brackets, for use in construction settings such as truss arrangements and staircases. The rails have elongated slots for receiving and retaining connectors of the brackets. For staircase arrangements, the upper rail further includes an upper elongated slot for receiving step supports, and at least two paired top-bottom rails are positioned laterally for a step to be secured to upper surfaces of the laterally-adjacent step supports. Spacers can be employed in any or all of the slots for providing a desired distance between brackets or step supports.

A strut and method using same is provided. The strut comprises a body member having a longitudinal axis, a first end and a second end. A first gripping member is connected to the first end of the body member. The first gripping member comprises a first plate for engaging a first structural engagement member. A second gripping member is connected to the second end of the body member. The second gripping member comprises a second plate for engaging a second structural member. The body member of the strut extends in a direction to intercept each of the first and second plates.

A stud such as a light-weight metal stud can include a first elongated channel member and a second elongated channel member coupled to the first elongated channel member by a wire matrix, where ends of the wire matrix are located at ends of the first and second channel members. A pitch of the wire matrix can vary over the length of the stud. Two or more such studs can have different lengths where a difference in the lengths is not a multiple of the pitch.

A length-adjustable truss stiffener is intended to be used to strengthen truss systems at locations of localized over-stress to reduce the cost from the alternative solution which is to reduce truss spacings. The stiffener consists of two or more sleeves locking around two or more components of the main truss. The sleeves mounted on different truss components are connected to one another with a length-adjustable shank. The stiffener may be used in two-dimensional or three-dimensional trusses. Of a collection of prefabricated trusses necessary to erect a structure, only a subset of one or more trusses are customized with stiffeners according to loading calculations predicting failure of that subset under required loading conditions, while all other trusses are installed in their original prefabricated state.