A modular building unit is disclosed. The modular building unit includes at least nine elongated frame members, each forming one edge of a prism, which prism has at least three side faces and two end faces, with each end of each frame member being rigidly attached to an end of two other frame members. At least three parallel frame members include a channel running therethrough, which channel is open at both ends and adapted to receive a tensioning cable therethrough, whereby like modular building units can be held together at adjoining end faces by tensioning cables. Modular building systems for combining modular building units using tensioned cables are also disclosed.

A precast building material contains: a substrate, a peripheral frame, a metal reinforcement unit, and a concrete layer. The substrate is in a parallelogram shape. The peripheral frame is mounted around the substrate so that an accommodation chamber is defined between the peripheral frame and the substrate. The peripheral frame includes multiple first connection rails having at least one first slot, multiple second connection rails having at least one second slot, multiple convex engagement portions, and multiple concave engagement portions. The respective first connection rail has multiple first locking orifices, and the respective second connection rail has multiple second locking orifices. The metal reinforcement unit is fixed in the accommodation chamber and includes multiple rebars. The concrete layer is filled with the accommodation chamber, and the concrete layer is connected with the peripheral frame and the metal reinforcement unit and is removable from the substrate.

A modular building unit is disclosed. The modular building unit includes at least nine elongated frame members, each forming one edge of a prism, which prism has at least three side faces and two end faces, with each end of each frame member being rigidly attached to an end of two other frame members. At least three parallel frame members include a channel running therethrough, which channel is open at both ends and adapted to receive a tensioning cable therethrough, whereby like modular building units can be held together at adjoining end faces by tensioning cables. Modular building systems for combining modular building units using tensioned cables are also disclosed.

A construction system for structural frameworks of buildings is described, comprising a first and a second structural elements mutually connected by connecting elements, the first and second structural elements being vertically assembled to make a pillar of the framework, a third and a fourth structural elements mutually connected by connecting elements to make a beam of the framework, the third and fourth structural elements being assembled transversally to the first and second structural elements, the third and/or fourth structural elements being associated as joint to the first and/or to the second structural element, the third and fourth structural elements being further connected to the first and the second structural elements by connecting elements, to make the framework, the first, second, third and fourth structural elements being composed of a panel having height and width greater than the thickness.

The present invention relates to a metal framing connector spanning between support members secured by having web-flange notches engaging the aperture of support members or where adjacent connectors overlap web-flange notches by changing the connector widths or where the connector has added lips with lip notches to engage the support members or where the flange-notches can have a continuous web notch engage the aperture bottom edge or where one end of the connector has a web extension with hook tongue for tongue end to engage a hole receiver in the web of an adjacent connector or where the aperture bottom edge projects and extends into the continuous web notch or where hole notches or hole projections will hold the connector from moving horizontally or vertically within the apertures.

The present invention comprises a structure for coverage formed by various structural elements, in particular a main element comprising one piece (stringer), said stringer (1) comprising in its basic embodiment a steel plate approximately 1-2 mm thick, conformed in a characteristic way by a tool in a continuous process, said shape essentially longitudinal, comprising several holes (5, 7) and pairs of fins (9), also known as shields in your extension, arranged modularly in a characteristic fashion in a basic pre-determined pattern, the piece (stringer) (1) being capable of being made in several lengths, being connected to one another by connecting plates (6) of characteristic geometry.

The present invention relates to a prefabricated construction system and method, for erecting constructions by means of the assembly of prefabricated structural elements obtained by cutting flat materials, forming structural nodes by means of coupling at least a first coupling configuration formed by first slots made in a plurality of parallel boards forming a first structural element with at least a second coupling configuration formed by second slots made in a plurality of parallel boards forming a second structural element, providing a structural core in the form of an array having interstitial openings going through it which allow the coupling of third and fourth coupling configurations of third and fourth structural elements.

A batten bar is configured to secure first and second adjacent flat panels to a structural framework. The batten bar includes first and second inside legs, first and second outside legs, and a plurality of apertures disposed along the length of the batten bar. The first and second inside legs define a central channel. The first outside leg and the first inside leg define a first seal recess configured to receive and retain a first seal. The second outside leg and the second inside leg define a second seal recess configured to receive and retain a second seal. In an installed configuration, the first inside leg and the first outside leg are configured to contact the first flat panel along a first common plane, and the second inside leg and second outside leg contact the second panel along a second common plane.

A joint attachment system for a reconfigurable truss includes a first joint attachment having a first pivot axis and a second joint attachment having a second pivot axis. The first joint attachment and second joint attachment form a concentric spherical joint linkage when attached to a first body member and a second body member, respectively. The first pivot axis of the first joint attachment intersects the second pivot axis of the second joint attachment at a single point X which defines a center of the concentric spherical joint linkage. The concentric spherical joint linkage is configured to allow the addition of one or more joint attachments and body members to the truss node. In addition, the concentric spherical joint linkage is configured to allow the removal of one or more joint attachments and body members from the truss node.

The present invention comprises a structure for coverage formed by various structural elements, in particular a main element comprising one piece (stringer), said stringer (1) comprising in its basic embodiment a steel plate approximately 1-2 mm thick, conformed in a characteristic way by a tool in a continuous process, said shape essentially longitudinal, comprising several holes (5, 7) and pairs of fins (9), also known as shields in your extension, arranged modularly in a characteristic fashion in a basic pre-determined pattern, the piece (stringer) (1) being capable of being made in several lengths, being connected to one another by connecting plates (6) of characteristic geometry.