Method of adding extra floors on existing buildings

A method of adding floors above an existing building structure, said existing building structure having existing foundations, walls supported on said existing foundations said wall defining a building perimeter, and a roof located above said walls, said method comprising the steps of:

• providing additional internal foundations adjacent the existing foundations within the perimeter of the building structure;
• providing additional external foundations adjacent the existing foundations outside the perimeter of the existing building structure;
• supporting a plurality of internal support columns on said additional internal foundations and extending said plurality of internal support colums through the roof of said existing building structure to a predetermined height;
• supporting a plurality of external support columns on said additional external foundations and arranging said external support columns to be substantially the same height as the internal support columns;
• supporting a platform truss on top of said external support columns and said internal support columns above said roof, said platform truss providing a base for a building construction skeleton framework;
• building a construction skeleton framework above said platform truss, said construction skeleton framework providing a plurallity of floors above said existing building structure.

A method of adding floors above an existing building structure, said existing building structure having existing foundations, walls supported on said existing foundations, said wall defining a building perimeter, and a roof located above said walls, said method comprising the steps of;

• providing additional internal foundations adjacent to existing foundations and within the perimeter of said existing structure;
• supporting a plurality of internal support columns on said additional internal foundations;
• supporting an intermediate floor on said internal support solumns and extending said internal support columns through the roof of said existing building structure;
• supporting a platform truss on said internal columns above the roof, said platform truss providing a base for a building construction skeleton framework, and
• building a construction skeleton above said platform truss, said construction skeleton providing a plurality of floors above said existing structure.

A building structure comprising:

• an existing building structure, said existing building structure having existing foundations, walls supported on said existing foundations said wall defining a building perimeter, and a roof located above said walls, and an additional internal building foundation adjacent said existing foundation;
• a plurality of internal support columns mounted on said additional internal foundations, said plurality of internal supporting columns extending above said existing structure to a predetermined height;
• a platform truss supported on said internal support columns above said existing building structure, said platform truss being proportioned to support an additional building structure with a plurality of floors above said existing building structure;
• an construction skeleton framework supported on said platform truss, said skeleton framework providing a plurality of floors above said existing building structure.

A building structure comprising:

• an existing building structure, said existing building structure having existing foundations, walls supported on said existing foundations, said wall defining a building perimeter, and a roof located above said walls, and an additional internal building foundation adjacent said existing foundation;
• a plurality of internal support columns mounted on said additional internal foundations, said plurality of internal supporting columns extending above said existing structure to a predetermined height;
• an additional external foundation adjacent said existing foundation, a plurality of external support columns mounted on said external foundation, said external support columns extending to substantially the same height as the internal support columns;
• a platform truss supported on said internal support columns and on said support columns above said existing building structure, said platform truss being proportioned to support an additional building structure with a plurality of floors above said existing building structure;
• and
• a construction skeleton framework supported on said platform truss said skeleton framework providing a plurality of floors above said existing building structure.