A method for building a mechanical secured block structure, including placing a footer block on a desired surface, inserting two respective starter bar nuts into the footer block, inverting the footer block, placing a first concrete masonry unit over respective first and second anchor bars, aligning the first concrete masonry unit with the footer block, placing second and third footer blocks adjacent the first footer block, placing a second concrete masonry unit adjacent the first concrete masonry unit, positioning each respective concrete masonry unit to equally straddle two adjacent footer blocks, positioning respective anchor bars atop respective concrete masonry units, and bolting respective concrete masonry units to respective footer blocks to interconnect the two respective concrete masonry units and the three respective footer blocks to define a contiguous wall. Each respective masonry unit and each respective footer block are post tensioned to be under compression.

Hybrid joint assembly comprising at least one cylinder-shaped joint assembly comprising an elongated or disc-shaped main body provided with exterior connection surfaces for attachment of structure elements extending in a horizontal plane via a connection interface, and at longitudinal ends thereof adapted for connection to structure elements extending in a vertical plane via a connection disc or structure elements extending in a parallel vertical plane via a rotational connection module and at least one connection module.

A locating pin assembly for coupling a first modular frame to a second modular frame is disclosed. The locating pin assembly has a first gusset plate positioned between the first modular frame and the second modular frame. The first gusset plate has a first gusset plate aperture and a second gusset plate aperture for receiving fastening means for coupling the first-modular-frame-first-beam and the second-modular-frame-first-beam the gusset plate. The pin assembly also has a pin engaging the first gusset plate, the first modular frame and the second modular frame. Also disclosed are modular frame units having the pin assembly, system of modular frame units having the pin assembly and a method of coupling modular frame units.

A construction system comprising an elongate column member, an elongate beam member and at least one connector member. Each of the elongate members comprising an interior engaging portion 3B. The connector member includes a protruding keying portion 12 and mating formation 13. When the elongate column member and elongate beam members are engaged with the connector member in use, the interior engaging portion slidably receives the mating formation therein. The elongate members have a keying portion on an outside of their body to allow connection to a wall frame.

A locating pin assembly for coupling a first modular frame to a second modular frame is disclosed. The locating pin assembly has a first gusset plate positioned between the first modular frame and the second modular frame. The first gusset plate has a first gusset plate aperture and a second gusset plate aperture for receiving fastening means for coupling the first-modular-frame-first-beam and the second-modular-frame-first-beam the gusset plate. The pin assembly also has a pin engaging the first gusset plate, the first modular frame and the second modular frame. Also disclosed are modular frame units having the pin assembly, system of modular frame units having the pin assembly and a method of coupling modular frame units.

A post-installed anchor by which high drawing strength can be reliably maintained and an anchoring operation can be stably performed, or the like. A post-installed anchor, which is anchored into an anchor hole having a diameter expansion portion, includes: an anchor main-body inserted in the anchor hole; a plurality of straight-shaped guide opening portions formed to penetrate in a radial direction at positions corresponding to the diameter expansion portion; a plurality of spread pieces slidably provided at the respective guide opening portions and engaged to the diameter expansion portion in an anchoring state in which the plurality of spread pieces spread in the radial direction; and a cone portion that slides the respective spread pieces to an outside in the radial direction to spread the plurality of spread pieces.

A decorative moulding assembly for a wall or ceiling in an interior space. The decorative moulding assembly may include a first moulding piece and a second moulding piece each having an ornamental front surface, a rear surface, and a channel in the rear surface and a connector for connecting the first and second moulding pieces together. The connector may include a first portion that nests within the channel of the first moulding piece and a second portion that nests within the channel of the second moulding piece. The first portion of the connector may include a U-shaped body having first and second legs that deflect inwardly towards one another as the first portion of the connector is being inserted into the first channel of the first moulding piece.

A decorative moulding assembly for a wall or ceiling in an interior space. The decorative moulding assembly may include a first moulding piece and a second moulding piece each having an ornamental front surface, a rear surface, and a channel in the rear surface and a connector for connecting the first and second moulding pieces together. The connector may include a first portion that nests within the channel of the first moulding piece and a second portion that nests within the channel of the second moulding piece. The first and second moulding pieces may have engagement features that differ from one another, and the first and second portions of the connector may have engagement features that differ from one another.