Patent ID: 9243398
Filing Date: 2016-01-26
CPC Classification: E04B,E04F,E04G

Claim Text:
1. A modular building system for constructing a multi-story building, the system comprising: a plurality of prefabricated modular units, each modular unit comprising a unitary horizontal concrete slab for forming a floor of the building, a concrete joist portion extending horizontally along a first edge of the slab, the joist portion extending below the slab and having a lip portion that extends horizontally beyond the first edge of the slab, in a first direction perpendicular to the first edge of the slab, to form a receiving lip, a plurality of concrete columns positioned on top of the slab along the first edge, and a plurality of connectors installed in cavities formed in the modular unit, wherein the slab and the joist portion form a bottommost portion of each modular unit, and wherein the horizontal concrete slab extends further than the joist portion in a second direction, opposite the first direction, ending at a free end of the slab having a second edge, wherein at least one floor of the multi-story building is formed by arranging the modular units so that the second edge at the free end of the slab of a first modular unit is positioned on the receiving lip of the first edge of a second modular unit such that the unitary slab of the first modular unit spans an entire distance to the second modular unit, and at least one additional floor of the multi-story building is formed by arranging the modular units so that the joist portion of an upper modular unit is positioned on the columns of a lower modular unit.