Reinforced foundation wall system

Abstract

The invention relates to a foundation wall system comprising: a foundation wall of a known height, thickness, and length and wherein a first end of the foundation wall has an extension; a foundation base having a groove, wherein the foundation wall is situated on the foundation base by inserting the extension into the groove, and the foundation base has extensions along predetermined portions of the foundation base; a plurality of horizontal reinforcement members incorporated into the foundation wall distal to an exterior edge of the foundation wall; and a plurality of lateral stiffeners structures integrated into the foundation wall at predetermined location along the length of the foundation wall, wherein the lateral stiffeners are sized to fit on the extensions of the foundation base.

What is claimed is: 
     
         1 . A foundation wall system comprising:
 a foundation wall of a known height, thickness, and length and wherein a first end of the foundation wall has an extension;   a foundation base having a groove, wherein the foundation wall is situated on the foundation base by inserting the extension into the groove, and the foundation base has extensions along predetermined portions of the foundation base;   a plurality of horizontal reinforcement members incorporated into the foundation wall distal to an exterior edge of the foundation wall; and   a plurality of lateral stiffeners structures integrated into the foundation wall at predetermined location along the length of the foundation wall, wherein the lateral stiffeners are sized to fit on the extensions of the foundation base.   
     
     
         2 . The foundation wall system of  claim 1 , wherein the lateral stiffeners have a predetermined shape based on the height of the foundation wall and the location of integration into the foundation wall. 
     
     
         3 . The foundation wall system of  claim 1 , wherein the lateral stiffeners height is below a grade level. 
     
     
         4 . The foundation wall system of  claim 1 , wherein the plurality of reinforcement members are predetermined distances from one another. 
     
     
         5 . The foundation wall system of  claim 1 , wherein the at least one of the lateral stiffeners are reinforced with a reinforcement member. 
     
     
         6 . The foundation wall system of  claim 1 , wherein the lateral stiffeners interface with the foundation wall at substantially right angles. 
     
     
         7 . The foundation wall system of  claim 1 , further comprising a continuous strip footing of substantially uniform width supporting the foundation wall and the lateral stiffening structures. 
     
     
         8 . The foundation wall system of  claim 1 , wherein each of the lateral stiffeners has a uniform horizontal cross section throughout its height, and not extending above a grade level. 
     
     
         9 . The foundation wall system of  claim 1 , wherein each lateral stiffening including horizontal reinforcement members. 
     
     
         10 . A foundation wall system comprising:
 a foundation wall of a known height, thickness, and length, and wherein a first end of the foundation wall has an extension;   a foundation base having a keyway sized to fit the extension of the foundation wall and interfacing with the foundation wall and having a series of extensions extending outward from the foundation wall at predetermined locations;   a plurality of lateral stiffeners structures integrated into the foundation wall at the extensions of the foundation base; and   a series of horizontal reinforcement members integrated into the foundation wall distal to an exterior surface of the foundation wall and the lateral stiffeners.   
     
     
         11 . The foundation wall system of  claim 10 , wherein the lateral stiffeners and the foundation wall, and the foundation base are a unitary component. 
     
     
         12 . A method of constructing a foundation wall, comprising: identifying a height and a length of a foundation wall member and calculating a load applied to the foundation wall member based on a backfill soil type and soil grade height from a base of the foundation wall member, wherein the calculated applied load is above a threshold value, integrating at least one lateral stiffener into the foundation wall member distal to an exterior surface of the foundation wall member, wherein the position of the lateral stiffener creates segments of the foundation wall member and recalculating the applied load across each of the segments of the foundation wall member and determining if the applied load is above the threshold value. 
     
     
         13 . The foundation wall system of  claim 10 , wherein the maximum length of each segment of the foundation wall member is calculated by determining the height and equivalent weight of the backfill soil. 
     
     
         14 . The foundation wall system of  claim 10 , further comprising, choosing a compressive strength of plain concrete and using that compressive strength to calculate a length of the segment by assuming a ratio for the length of the segment with respect to height of the foundation wall member. 
     
     
         15 . The foundation wall system of  claim 10 , further comprising, calculating the maximum tensile stress in said segment in both vertical and horizontal directions, on account of lateral pressure exerted by the backfill soil, wherein the segment is free at the top edge, hinged at the bottom edge, and fixed at the two vertical edge. 
     
     
         16 . The foundation wall system of  claim 10 , further comprising, calculating a direct tensile stress acting at a joint of said foundation wall member and the lateral stiffener, wherein the lateral pressure exerted by the backfill soil on said tentative length of said segment 
     
     
         17 . The foundation wall system of  claim 10 , further comprising, calculating an overturning moment acting on the lateral stiffener, on account of the lateral pressure exerted by the backfill soil on a tentative length of said segment. 
     
     
         18 . The foundation wall system of  claim 10 , further comprising, calculating resisting moment acting on one the lateral stiffener, on account of the combined weight of concrete and soil acting above a footing of the lateral stiffener, wherein ensuring that the foundation wall member eliminates the need to construct a first floor deck before backfilling of soil. 
     
     
         19 . The foundation wall system of  claim 10 , wherein a profile of the lateral stiffener is calculated based on the necessary strength of the lateral stiffener. 
     
     
         20 . The foundation wall system of  claim 10 , wherein a plurality of reinforcement members are integrated into the foundation wall or the lateral stiffener based on a calculated strength requirement of the foundation wall and the lateral stiffener.