A set of building components of a mechanically secured block building system for constructing structures include a plurality of trough blocks. Each trough block has an interior cavity characterized by a U-shaped cross section and a pair of oppositely disposed inner ledges recessed relative to top surfaces of opposing outer walls. A bottom of each trough block includes a plurality of apertures therethrough. In an assembled configuration of the trough blocks, the trough blocks are mechanically secured in an end-to-end arrangement and the interior cavities align to define a continuous pipe channel therethrough.

A semi-interlocking construction block system may include blocks having prism shaped male and female fittings configured for semi-interlocking interaction. When mated the male and female fittings may engage along their respective interfacing upper bases and lower ends of their respective lateral side faces. Gaps may be defined between upper ends of their respective lateral side faces. The fittings may include arcuate edges which may be quarter rounded.

A semi-interlocking construction block system may include blocks having prism shaped male and female fittings configured for semi-interlocking interaction. When mated the male and female fittings may engage along their respective interfacing upper bases and lower ends of their respective lateral side faces. Gaps may be defined between upper ends of their respective lateral side faces. The fittings may include arcuate edges which may be quarter rounded.

Structures including a curved corrugated wall fabricated from a plurality of layers formed of one or more shaped strips and methods of forming the structures are described. A shaped strip used in the fabrication includes a variable profile across the width of the strip with a first edge of a strip defining a series of cell profiles of a first geometric shape and a second, opposite edge of the strip defining a series of cell profiles of a second, different geometric shape, with each cell transitioning from the first profile to the second profile across the width of the strip. The geometry of the cell profiles at either end of each cell can be designed with respect to one another to allow for radial orientation of the strip about an axis with little or no deformation or stress on the strip edges.

Structures including a curved corrugated wall fabricated from a plurality of layers formed of one or more shaped strips and methods of forming the structures are described. A shaped strip used in the fabrication includes a variable profile across the width of the strip with a first edge of a strip defining a series of cell profiles of a first geometric shape and a second, opposite edge of the strip defining a series of cell profiles of a second, different geometric shape, with each cell transitioning from the first profile to the second profile across the width of the strip. The geometry of the cell profiles at either end of each cell can be designed with respect to one another to allow for radial orientation of the strip about an axis with little or no deformation or stress on the strip edges.

Provided is an assembly unit including 3N (here, N is a natural number) number of polygonal surface parts, which extend in a vertical direction and have flat surfaces, connecting parts connecting end portions, which are adjacent to each other, of end portions of each of the polygonal surface parts, and coupling protrusions respectively protruding from the polygonal surface parts in a horizontal direction that is perpendicular to the vertical direction. The three polygonal surface parts in a clockwise direction are defined as one set, and the coupling protrusions respectively have formation positions that sequentially increase in height within the one set in the vertical direction.

Provided is an assembly unit including 3N (here, N is a natural number) number of polygonal surface parts, which extend in a vertical direction and have flat surfaces, connecting parts connecting end portions, which are adjacent to each other, of end portions of each of the polygonal surface parts, and coupling protrusions respectively protruding from the polygonal surface parts in a horizontal direction that is perpendicular to the vertical direction. The three polygonal surface parts in a clockwise direction are defined as one set, and the coupling protrusions respectively have formation positions that sequentially increase in height within the one set in the vertical direction.

A wall block includes a first end portion, a second end portion, and an intermediate portion extending between the interconnecting the first and second end portions. The first end portion includes a first face and first and second opposing side surfaces. The second end portion includes a second face and third and fourth opposing side surfaces. The first and second side surfaces taper toward each other extending in a direction from the first face toward the second face. The third and fourth side surfaces taper toward each other extending in a direction from the second face toward the first face.

A wall block includes a first end portion, a second end portion, and an intermediate portion extending between the interconnecting the first and second end portions. The first end portion includes a first face and first and second opposing side surfaces. The second end portion includes a second face and third and fourth opposing side surfaces. The first and second side surfaces taper toward each other extending in a direction from the first face toward the second face. The third and fourth side surfaces taper toward each other extending in a direction from the second face toward the first face.

Structures including a curved corrugated wall fabricated from a plurality of layers formed of one or more shaped strips and methods of forming the structures are described. A shaped strip used in the fabrication includes a variable profile across the width of the strip with a first edge of a strip defining a series of cell profiles of a first geometric shape and a second, opposite edge of the strip defining a series of cell profiles of a second, different geometric shape, with each cell transitioning from the first profile to the second profile across the width of the strip. The geometry of the cell profiles at either end of each cell can be designed with respect to one another to allow for radial orientation of the strip about an axis with little or no deformation or stress on the strip edges.