The present invention provides a prefabricated floor panel system used in stay in place formwork for pouring concrete floors. The prefabricated floor panel system includes a top and has walls depending downwardly at an upper lateral edge of the wall from each outermost lateral edge of the top, a lower lateral edge of each wall having a ledge extending outwardly away from the top. A first ledge of one prefabricated floor panel system is capable of overlying another ledge of an adjacent prefabricated floor panel system to allow for the one prefabricated floor panel system to be joined to the adjacent prefabricated floor panel system to form a channel. The first ledge of the prefabricated floor panel system is provided with a reinforcing bar spaced away from the wall and the first ledge of the prefabricated floor panel system, the reinforcing bar being supported by a plurality of a reinforcing bar chairs spaced along the length of the prefabricated panel system, the reinforcing bar chairs being attached to the first ledge or wall such that there are no significant interfering structures projecting from a lower surface of the first ledge. The other ledge of the prefabricated floor panel system is free of interfering structures above the ledge to allow the first ledge of one prefabricated floor panel system to overlie the other ledge of an adjacent prefabricated floor panel system to allow for the one prefabricated floor panel system to be joined to the adjacent prefabricated floor panel system to form a channel.

An elongate profile having a first portion and a second portion, the first and second portions being joined together at a first joining portion, the first and second portions being non collinear, the joining portion comprising an array of raised or rebated formations, each formation extending across the joining portion in a direction which is non-parallel to the principal axis of the profile and flat lands being provided between successive formations in an array and the pitch between successive formations in an array being from 2 to 20 times, for example from 5 to 15 times, the thickness of the flatlands.

A support wall frame system includes at least one end track, and a frame member received within the at least one end track. Such a frame member has a centrally registered longitudinal axis and includes at least one rib extended parallel to the centrally registered longitudinal axis. Advantageously, the at least one rib is statically affixed to the at least one end track. The at least one track includes at least one detent spaced from each shoulder of the track to allow bending the at least one track from a single and unitary sheet of metal. The at least one rib is interfitted within the at least one track.

A clearspan structure including component systems, and methods of forming a clearspan structure including component systems, for mitigating hazards to personnel or equipment from explosions, fires, toxic material release, and other hazards in hazardous locations. The exemplary clearspan structure is also capable of withstanding environmental conditions such as snow loads and wind. The exemplary clearspan structure is, for example, a tent or fabric structure which includes a plurality of frame members forming a support system for the clearspan structure, and fabric roof portions and walls for enclosing the clearspan structure.

A C-beam constructed to satisfy RMI and MHI standards for supporting two 2500 lb pallets over a 96 inch span and exhibit acceptable deflection, within industry safety specifications, that previously had only been satisfied by 4 inch C-beams of over 4 lb/ft, by optimizing the web thickness and the upper and lower flange dimensions. The beam is constructed, adapted, configured and dimensioned, such that it can weigh less than about 3.7 lb/ft, even less than about 3.55 lb/ft, and when supported at each end, will support an evenly distributed load of over 2400 lb, even 2500 lb, with a deflection of less than about 1/180 of its length.

A clearspan structure including component systems, and methods of forming a clearspan structure including component systems, for mitigating hazards to personnel or equipment from explosions, fires, toxic material release, and other hazards in hazardous locations. The exemplary clearspan structure is also capable of withstanding environmental conditions such as snow loads and wind. The exemplary clearspan structure is, for example, a tent or fabric structure which includes a plurality of frame members forming a support system for the clearspan structure, and fabric roof portions and walls for enclosing the clearspan structure.

Disclosed is a vertical profile for an automated sliding door. The profile is formed by front and rear walls connected by nose and tail walls. The nose and tail walls are thicker than the front and rear walls to provide enhanced resistance to deflection in the through-door direction. The walls are formed as an aluminum extrusion. The arrangement and thickness of the walls provides strength sufficient to withstand high wind loads without the installation of reinforcing members. Fillets may be provided where the walls are joined to lessen the tendency for the nose and tail walls deflect, further strengthen the profile.

A C-beam constructed to satisfy RMI and MHI standards for supporting two 2500 lb pallets over a 96 inch span and exhibit acceptable deflection, within industry safety specifications, that previously had only been satisfied by 4 inch C-beams of over 4 lb/ft, by optimizing the web thickness and the upper and lower flange dimensions. The beam is constructed, adapted, configured and dimensioned, such that it can weigh less than about 3.7 lb/ft, even less than about 3.55 lb/ft, and when supported at each end, will support an evenly distributed load of over 2400 lb, even 2500 lb, with a deflection of less than about 1/180 of its length.

A Three-Dimensional Positioning and Holding Modular System for office and industrial work stations including embodiments of multi-rail beams and rail-arm-leg modules. The embodiments have tubes, bars, or channels arranged and connected in ways that provide improved ability to transmit torque along a long axis of the multi-rail beam while providing improved resistance to twisting under the forces of the torque.

Modular system for creating a structure, in particular a building component, comprising at least one post profile (2), at least one ceiling profile (3) and at least one floor profile (4) for a basic framework of a first modular unit (50, 50′, 50″, 50′″), at least one further post profile (2), at least one further ceiling profile (3) and at least one further floor profile (4) for a basic framework of a second modular unit (50, 50′, 50″, 50′″), and a module connector (38) for connecting the first and the second modular unit (50, 50′, 50″, 50′″), wherein the post profile (2) has a first pin holding fixture (55) and the further post profile (2) has a second pin holding fixture (55), wherein the module connector (38) has a first connecting pin (39) for insertion into the first pin holding fixture (55) and a second connecting pin (40) for insertion into the second pin holding fixture (55), and wherein the module connector (38) has a supporting element (41) on which the first and second connecting pins (39, 40) are arranged.