Construction System

Abstract

A building construction system utilizing prefabricated stacked modules creating tubular resistant modules forming spaced hollow columns interconnected by bridges and a plurality of elongate structural profiles made of bendable steel used as column and beam components in the modules.

What is claimed is: 
     
         1 . A construction system for multi-level buildings comprising
 a plurality of modules stacked one on top of the other, each of said modules having vertical side walls such that said stacked modules create tubular resistant modules forming spaced hollow columns;   a bridge flexibly connected with said hollow columns; and   a plurality of elongate structural profiles used as column and beam components in said modules, each of said profiles having first and second opposing ends, each of said profiles being made of bendable steel bent to have uniform cross-sections along the length thereof between said first and second ends, said cross sections defining a web having first and second longitudinal side edges defining a width therebetween, first and second spaced, planar side flanges extending from said first and second side edges of said web, respectively, to be perpendicular to said web from said first end to said second end of said profile, an indentation in said web having a “V” shape, and first and second planar stiffening inner flanges extending toward said indentation from said first and second planar side flanges, respectively, said stiffening inner flanges being disposed in a plane parallel to and spaced from said web and terminating at inner edges spaced from each other.   
     
     
         2 . A construction system as recited in  claim 1  wherein said plurality of profiles are joined together to form rigid frames pre-assembled at a factory for transportation to a construction site for the buildings and said modules are formed using said profiles as columns and beams. 
     
     
         3 . A construction system as recited in  claim 2  wherein said modules are open boxes formed of panels coupled with said columns and beams forming said metal frames 
     
     
         4 . A construction system as recited in  claim 3  wherein said boxes are grouped to accommodate damp elements. 
     
     
         5 . A construction system as recited in  claim 3  wherein said modules are grouped to form building modules and staircase modules. 
     
     
         6 . An elongate steel structural profile for use as a column or beam building element in construction of a building, said profile being made of bendable steel bent to have a uniform cross-section along the length thereof between said first and second ends, said cross section defining a web having first and second longitudinal side edges defining a width therebetween, first and second spaced, planar side flanges extending from said first and second side edges of said web, respectively, to be perpendicular to said web from said first end to said second end of said profile, an indentation in said web having a “V” shape, and first and second planar stiffening inner flanges extending toward said indentation from said first and second planar side flanges, respectively, said stiffening inner flanges being disposed in a plane parallel to said web and terminating at inner edges spaced from each other.