A joint connection structure of a building framework includes a column assembly including a column and a pair of side plates attached to the column on opposite sides of the column and extending laterally outward from the column. A beam assembly includes a beam having an end portion received between the side plates. At least one of the column and the beam has an opening in an area between the side plates to provide access for bolting at least one of the side plates to one of the column and the beam. The opening is free of a fastener extending through the opening when the column assembly is attached to the beam assembly.

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 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.

Modular building cleanrooms having integrated mechanical rooms with removable, walkable floor panels above their ceilings are disclosed. The attic area above the sealed cleanroom ceiling and below joists of the modular building's frame provides an interstitial volume through which ducts, piping, electrical conduit, etc. run from the mechanical room to dampers, valves, and junctions boxes. The walkable floor panels can be bar grating through which maintenance people can see components below. The floor panels can have individual sections that may be removed for access to the components. Along with walkable floor panels, the modular building roofs can have foldable electrical panelboards that are pre-wired at the factory and then rotated upright once delivered to their destination.

Modular building cleanrooms having integrated mechanical rooms with removable, walkable floor panels above their ceilings are disclosed. The attic area above the sealed cleanroom ceiling and below joists of the modular building's frame provides an interstitial volume through which ducts, piping, electrical conduit, etc. run from the mechanical room to dampers, valves, and junctions boxes. The walkable floor panels can be bar grating through which maintenance people can see components below. The floor panels can have individual sections that may be removed for access to the components. Along with walkable floor panels, the modular building roofs can have foldable electrical panelboards that are pre-wired at the factory and then rotated upright once delivered to their destination.

The present invention provides a building frame structure with both support and ventilation functions, the building frame structure contains at least one starting column and multiple main beams, the main beams are connected with the starting column, and top of the starting column is connected to a fan. The starting column is a hollow cylinder, and there are four thin hollow columns in the starting column. The main beams are hollow structures, and a reinforcing wall is arranged inside the main beams, the reinforcing wall is connected with inner walls of the main beam to form multiple ventilation ducts. When the frame structure is installed, air sent by the fan flows to the ventilation ducts of the main beams through the ventilation spaces of the thin hollow columns, the second air guide holes, and the first air guide holes, and then sends the air to various places in the building.

The present invention provides a building frame structure with both support and ventilation functions, the building frame structure contains at least one starting column and multiple main beams, the main beams are connected with the starting column, and top of the starting column is connected to a fan. The starting column is a hollow cylinder, and there are four thin hollow columns in the starting column. The main beams are hollow structures, and a reinforcing wall is arranged inside the main beams, the reinforcing wall is connected with inner walls of the main beam to form multiple ventilation ducts. When the frame structure is installed, air sent by the fan flows to the ventilation ducts of the main beams through the ventilation spaces of the thin hollow columns, the second air guide holes, and the first air guide holes, and then sends the air to various places in the building.

A metallic extruded profile has two parallel skins interconnected by a set of at least two webs running between extrusion edges of the profile and snap-fit features on joining edges permitting two instances of the profile to snap fit together along the joining edges, where a first web that is closest to snap-fit features of a first joining edge, is a curved web viewed from the extrusion edges. The curvature allows for both the curved web and skins to participate in snap-fit deformation, allowing for the deformation to be distributed over a large area, for a stiffer snap fit, and reduced plastic deformation.

The invention relates to a formwork support (10) for supporting concrete formworks in the construction sector, comprising an upper flange (12) and a lower flange (14), which are connected to one another via a hollow profile web (16) such that they are at an invariant distance in relation to one another, wherein the hollow profile web (16) is stiffened inside by framework struts (28a, 28b).