Abstract: A prefabricated building module can be essentially completed before transporting to the erection site. Thin walls, along with structural floor and ceiling, are fabricated on a plane aligned with the floor, and interconnected with hinges. After complete finishing of interior surfaces, such as wallpapering and carpeting, the ceiling and both walls are hinged into their final positions, along with temporary external strong-back forms as strong-backs. Internal soft-faced bracing sections are erected to support both walls before removal of the external strong-back forms. This bracing allows the completed module to be transported and craned to the upper floors of a multi-story building. The unit is light enough to allow knocked-down furniture to be carried inside.The module includes external welded wire fabric or reinforcement bars that will serve to tie adjacent units together, when concrete is poured between them to form a common wall.

Abstract: A simplified box-like building is constructed one room at a time. Concrete slabs are used for walls, floor and ceiling, and are poured in a horizontal position, stacked vertically with bond-breaking layers between them to allow separation. After the foundation and stub wall are partially cured, the ceiling slab is poured with wedge-shaped edges clearing stub walls by approximately one inch. Tiltable wall slabs are then poured on top of the ceiling slab, each connected by hinges to its own stub wall. An accelerated light weight low-slump concrete is normally used, and makes possible a rapid nearly continuous pouring sequence.Erection of the building is also rapid. The light weight walls are tilted up by hand, pivoting about their base hinges. While they are temporarily held in position, the wall edge dowel reinforcement is bent out and single-side corner forms are positioned or expanded metal is attached to the dowels.