Connection system for volumetric modular construction

Abstract

A modular unit connection system for jointing together pre-fabricated rectangular modular building units to form a multistory building. The building units can be completely fitted out and this connection system allows for positive structural connection using liquid grout filled columns, without bolting or welding and without the requirement for access to the connections from inside the pre-finished building module interiors. The four corner columns of the box-shaped modules are steel square hollow sections. This connection system uses a unique connector tube passing from the bottom of the column above, through a horizontal connector plate containing a guidance system and into the top of the hollow column below, and then a system of grouting the inside of the column, from an access position on top the upper most module to form the final positive structural connection.

Dependencies are inferred from the claim text.