Patent ID: 8341907

Claim:
A building system for a modular building structure construction on a foundation of poured concrete comprising: a foundation of concrete with a plurality of rods disposed and embedded at a lower end in said foundation in a building floor plan pattern to engage a plurality of columns and a plurality of wall panels; a plurality of concrete blocks with a hollow core stacked on top of each other to a specified height above said foundation with at least one rod bracket device disposed in a joint and with at least one of said rods extending upwardly through said hollow core to form a plurality of columns on said foundation; an attachment rod is inserted in at least one channel of said rod bracket device in each of said columns; a plurality of wall panels are disposed on said foundation abutting a side of each of said columns for each of said wall panels to span the space between adjacent columns; and each of said wall panels has at least one of said rods extending through a lower horizontal member and attached with a fastener, and a wall holding bracket engaged with an outside stud member of two adjacent wall panels at one of said columns and attached to said attachment rod of said rod bracket device.