Structural plates and methods of constructing arch-shaped structures using structural plates. Structural plates may include a combination of features including: an outer structural plate having adjacent circumferential apertures respectively spaced nominally greater than adjacent circumferential apertures of an inner structural plate; and the outer structural plate having nominally 5 enlarged or differently shaped circumferential apertures (as compared to circumferential apertures of the inner structural plate) such that the embodiment structural plates may be radiused to a variety of different radii while achieving desirable overlapping alignment of apertures along overlapping circumferential edges for receiving fasteners therein. Joiner plates may be provided for interconnecting structural plates along transverse edges in a non-overlapping arrangement, 10 thereby reducing the quantity of structural plate material that otherwise would be needed for a given circumferential length of the arch-shaped structure.

Blast resistant shelters and structural designs therefor according to which the structural designs include anchoring systems and manufacturing of the anchoring system. The anchoring systems include at least one bracket with a spiral winding and opposing first and second end portions. The first end portion includes two holes, and the second end portion includes two holes. The spiral winding is disposed between the first end portion and the second end portion.

Apparatus, systems, and methods for securing anchoring posts to a decking surface without the use of a metal plate or washer to redirect force from a single central fastener on an internally mounted anchor, or the use of an externally visible connector. An anchor member having a generally planar upper surface and vertical sidewalls has connection ridges extending out from those sidewalls that correspond to channels formed in the internal sidewalls of a hollow post member. Using a press, the anchor member is pressed into a secured position in the post. A plurality of attachment holes are disposed in a pattern around the anchor member, passing through the body thereof. For installation, a post with the fitted anchor is placed on a decking surface and a plurality of screws are attached to the decking surface to secure the anchor member and post thereto.

A panel is configured for attachment to a mounting surface of a building structure. The panel includes a first end surface and a second end surface, spaced from each other along a longitudinal axis; a top edge surface and a bottom edge surface, spaced from each other and offset from the longitudinal axis; and an inner surface and an outer surface, opposed to each other and extending from the first end surface and the second end surface. The inner surface includes a contact portion and a contour portion. The contact portion is disposed on a reference plane. The contour portion is contoured toward the outer surface, away from the reference plane, such that the contour portion defines a channel. The channel extends along at least a portion of a length of the panel, between the first end surface and the second end surface.

The present disclosure relates to a field-type negative pressure isolation room system including main facilities necessary for constructing a negative pressure isolation room defined by the legal regulations, wherein the main facilities are manufactured in a plant in a modular way, so these modular facilities are usually stored in a warehouse, etc., and are installed in an outdoor site such as a parking lot, playground, vacant lot, and the like in case of emergency to utilize as a negative pressure isolation room, and these modular facilities are disinfected and dismantled during demolition and stored in the warehouse again, whereby these modular facilities can be used repeatedly regardless of the number of times of use, and can be quickly constructed and dismantled.

Outdoor fitness pavilions, and systems and methods related to the same are provided. The pavilions include a floor substructure including floor support members, pillars distributed about a perimeter of the floor substructure, a roof substructure including roof support members, at least some of which are connected to the pillars. The pavilion includes integrated fitness equipment items connected to at least some of the pillars.

A locking assembly for use in building construction includes a locking body configured to be mounted on a first modular building unit and extend in a first direction away from the first modular building unit. The locking body is configured to receive and engage another locking assembly of a second modular building unit for locating the first modular building unit and the second modular building unit with respect to each other. A locking extension is configured to be mounted on the first modular building unit and extend in a second direction, opposite the first direction, away from the first modular building unit. The locking extension is configured to engage another locking body on a third modular building unit to lock the first modular building unit to the third modular building unit.

A fastening apparatus for two or more prefabricated blocks, in which the apparatus includes a perforated plate, a first block with a step, a connector plate that sized and shaped to engage the step, and an upstanding wall that is spaced apart from the block member. The perforated plate is connected to the wall and extends away from it towards the step. The perforated plate is partially mounted on part of the connector plate so as to sandwich it between the perforated plate and the step.

The disclosure relates to a connector assembly including a male connector and a female connector that are connectable to each other. The male connector includes a connector main body having an annular shape and a plurality of male nubs arranged circumferentially around the connector main body, each male nub configured to be received by a corresponding female slot. The female connector includes a main body portion having an annular shape and a plurality of female slots arranged circumferentially around the main body portion, each female slot configured to receive a corresponding male nub. The male connector and female connector are configured such that when the male connector is connected to the female connector, the plurality of male nubs engages with respective ones of the plurality of female slots. The connector system is particularly applied to link building components together to form structural elements.

A floating modular stair system includes a wall mounting plate that is attachable to a vertical wall, and a base mounting plate that is anchorable to a horizontal floor. A monostringer beam is attachable to the wall mounting plate and to the base mounting plate. The monostringer beam includes an integrated hook attachment for variable angle adjustment and attachment to the wall mounting plate. Stair tread brackets are attachable to the monostringer beam for equal spacing of stair treads after installation of the monostringer beam to the wall mounting plate and to the base mounting plate. Each of the stair tread brackets are also designed for individual variable angle adjustment and leveling after attachment to the monostringer beam, and the stair tread brackets are rotatable through an adjustable anchor point about a fixed pivot anchor point to level the stair treads of the floating modular stair system.