A truss includes a plurality of truss members, each truss member formed from a unitary folded blank of sheet metal to create a main panel, and proximal and distal flanges and a horizontal panel each extending perpendicularly from the main panel, the proximal flange of a first truss member is connected to the distal flange of a second truss member to form a truss. In one embodiment employing trusses formed of folded sheet metal, a plurality of interconnected truss modules, each truss module including a plurality of truss members, forms a plurality of oppositely extending horizontal flanges that collectively present the top and bottom surfaces of a cantilevered canopy.

This technology comprises a combined accessory of an in-situ concrete 3-D printed horizontal load-bearing member and a preparation method. The combined accessory includes 3-D printed concrete and a bottom mesh, the 3-D printed concrete contains fine aggregates having the particle size of 0.08 mm-4.75 mm, and the fluidity of the 3-D printed concrete is larger than or equal to 110 mm and smaller than or equal to 190 mm; the bottom mesh is a reinforcing mesh or expanded metal, the diameter of the reinforcing bar is larger than or equal to 0.5 mm, and the mesh aperture of the reinforcing mesh is smaller than or equal to 7.5 times of an upper limit of the particle size of the fine aggregate and is larger than or equal to 7.5 times of a lower limit of the particle size of the fine aggregate.

The present invention discloses a self-supporting prefabricated construction system that does not require a structure and has an arch-shaped configuration of different dimensions, intended for building living spaces and various types of uses. The present invention is based on modular structural elements that have the following configuration: undulating modules for the configuration of various types of roofs, that can be used in different kinds of spaces, wherein said modules are joined in an overlapping manner to generate rigidity and stability to the structure, making up completely sealed and waterproof spaces through various joining mechanisms. These curved undulating roof modules are of two kinds: curved ridge modules, whose size will depend on the dimensions of the intended arch, and curved wall modules. The system can have modules for different types of facades and interior dividing walls, which have a straight shape with obtuse folds.

A system for creating an enclosed room, such as an office, in an open space that has a floor and a ceiling. The system includes a support frame that is self-supported on the floor of the open space. The support frame includes a series of head rails supported by a series of vertical columns resting on the floor. The vertical columns support a series of wall panels and the head rails support a ceiling such that the ceiling is supported by the support frame independent of the wall panels. The ceiling of the enclosed room is created by a series of ceiling panels and at least one air intake panel and at least one air exhaust panel. The air exhaust panel includes an exhaust fan that removes air from within the enclosed room and draws fresh air into the enclosed room. The ceiling can include a plurality of adjustable louvers and lighting.

Pre-fabrication of a metal dormer provides for a one-step and relatively easy installation by a home owner, a roofing contractor or a carpenter. By using an aluminum alloy and specific forming and welding adaptations, a relatively water-tight, light and low-cost dormer may be readily pre-fabricated.

The invention is for a modular building unit (10, 200, 210) for use in constructing a building. The building unit (10, 200, 210) has a planar body (12) having two major side faces (12.1) and two ends (12.2) between each side face (12.1), and a connection interface (28, 30) provided at each of the ends, for connecting similar building units (10, 200, 210) with complemental connection interfaces. The body (12) comprises three walls (14, 16, 18) arranged side-to-side and transversely spaced from each other, the three walls (14, 16, 18) thus defining two planar spaces (20, 22) therebetween, and a plurality of reinforcing webs (24) in the first space, for providing structural support to the building unit (10, 200, 210). The second space (22) defines at least one hollow cavity for receiving a matched insulation insert (25) thereby to impart insulating properties to the building unit (10, 200, 210).

A prefabricated house including: a steel-frame foundation where H-shaped steels are connected in a rectangular contour, a vertical frame and a horizontal frame composed of an H-shaped steel are arranged inside the connected H-shaped steels, and inclined frames are mounted at four corners of the rectangular contour; a seismic isolation rubber supporting the steel-frame foundation on a foundation of the prefabricated house via a supporting frame; a rectangular floor member; outer wall members erected from four peripheries of the floor member; an inner wall member mounted at a position partitioning the floor member; and a roof member with a mountain-shaped section mounted on the outer wall members via a climbing beam, wherein changing positions of a window and a door and changing a room layout can is possible by changing positions of the wall member panels or reversing outer and inner faces or upper and lower sides of these panels.

A truss includes a plurality of truss members, each truss member formed from a unitary folded blank of sheet metal to create a main panel, and proximal and distal flanges and a horizontal panel each extending perpendicularly from the main panel, the proximal flange of a first truss member is connected to the distal flange of a second truss member to form a truss. In one embodiment employing trusses formed of folded sheet metal, a plurality of interconnected truss modules, each truss module including a plurality of truss members, forms a plurality of oppositely extending horizontal flanges that collectively present the top and bottom surfaces of a cantilevered canopy.

A wall section formed from sheet metal has a main panel, opposing vertical side flanges extending rearwardly from the side edges of the main panel, top and bottom horizontal flanges extending rearwardly from the panel, and stiffening flanges extending perpendicularly from the rear edges of the side, top and bottom flanges, thereby forming load bearing side beams, a header and a sill plate, the side flanges for attachment to the those of abutting wall sections to form a wall.

A module for use in constructing a building includes a ceiling assembly. Wall assemblies are configured for attachment to opposite sides of the ceiling assembly generally at tops of the wall assemblies. A floor assembly is configured for attachment generally to bottoms of the wall assemblies. Connector plates are attached to the wall assemblies. The connector plates are configured to receive fasteners for attaching the ceiling assembly and floor assembly to the wall assemblies. A method of construction using the modules is also disclosed.