FOUNDATION STRUCTURE

摘要

This invention provides a foundation structure (10) cast from a settable material such as concrete and comprises a slab (12) having a particular generally annular non-rectangular circumferential outer profile. The foundation structure (10) is further provided with a plurality of intersecting primary beams (14) extending through a common central region of the slab (12); and a secondary annular circumferentially extending beam (16). The structure (10) is constructed by a method including the steps of forming a plurality of radially extending primary channels extending through a central foundation region of the building; forming a secondary annular circumferentially extending channel; providing a void former for defining a common central region of intersecting channels, through which the primary beams (14) extend after being cast; casting a settable material into the channels; and casting a slab of settable material integrally with the primary and secondary beams (14, 16).