Flat strip slab system

Abstract

The present invention relates to a method and means of building a reinforced concrete construction employing a flat strip slab system which require less material and reduce over-all cost of construction, number of skilled workmen and as a viable alternative to conventional beam slab frame for medium and large span buildings. The defined strip is not a beam but the slab of larger thickness varied from column strip to its next strip and that is again different form bounded main panel.

1 . The method of forming a reinforced concrete flat strip slab system comprises of
 wide, rectangular strips especially used for floor slabs & roofs supported on columns directly;   plurality of steps is formed on the said system as a result of varied thickness of the slab as per the structural requirement across the span of the structure;   slab may possibly divided into middle, column and transition strips and corresponding reinforcement is based on the corresponding moments.   
     
     
         2 . The method of reinforced concrete flat strip slab system as claimed in  claim 1 , further leads to efficient stress leveling and utilization of material. 
     
     
         3 . The method of reinforced concrete flat strip slab system as claimed in  claim 1 , further advantageous with its low concrete consumption compared to the other systems. 
     
     
         4 . The method of reinforced concrete flat strip slab system as claimed in  claim 3 , said flat strip slab element has a strips of varying width and are suitable for medium to large spans. 
     
     
         5 . The method of reinforced concrete flat strip slab system as claimed in  claim 4 , in which the elongate strips of concrete have a thickness from 150 to 275 mm or more and a minimum width of 300 and maximum as per spans demands. 
     
     
         6 . The method of reinforced concrete flat strip slab system as claimed in  claim 1 , in which the reinforcing steel is of high yield strength deformed bars. 
     
     
         7 . The method of reinforced concrete flat strip slab system as claimed in  claim 4 , wherein stress patterns in slabs, forces in beams and slabs around selected columns, column steel for selected columns, deflections, composition of materials per floor are considered to determine economical, elegant alternative to the conventional reinforced concrete slab systems 
     
     
         8 . The method of reinforced concrete flat strip slab system as claimed in  claim 5 , wherein the columns are subjected to both axial forces and bi-axial moments as the combination will govern the design thereon. 
     
     
         9 . The method of reinforced concrete flat strip slab system as claimed in  claim 5 , is designed for all possible load cases of both gravity and lateral loads. 
     
     
         10 . The method of reinforced concrete flat strip slab system as claimed in  claim 7 , wherein efficient stress leveling can be acquired with more even distribution of bending stresses. 
     
     
         11 . The method of reinforced concrete flat strip slab system as claimed in  claim 10 , provide an economical and elegant alternative to the conventional building of slabs. 
     
     
         12 . The method of reinforced concrete flat strip slab system as claimed in  claim 10 , consumes less amount of concrete compared to the other conventional systems. 
     
     
         13 . The method of reinforced concrete flat strip slab system as claimed in  claim 10 , provide much higher specific surface as smaller diameter bars are used.