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<br />**** T RAN S V E R S E <br /> <br />SHE A R W ALL <br /> <br />A N A L Y S I S **** <br /> <br />Shearwall is 8 inch concrete masonry with Type S mortar <br />Specified compressive stren~th of masonry F'm is 1500 psi <br />Net area compressive strength of block units is 1900 psi <br />Steel is Grade 40 , with 1--#5 in single grouted cell at each end <br /> <br />Total lateral force on building <br />Force applied at top of walls <br />Sum of shearwall stiffnesses I/L == <br /> <br />== 8162 pounds <br />== 4081 pounds <br />4104.454 <br /> <br />Shearwall Number 1 : <br />Shearwall length <br />Relative stiffness percentage ratio <br />Total shear at top and bottom of wall <br />Clear height <br />Overturning moment <br />Uplift tensile stress on masonry <br />Dead load at bottom of shearwall x 2/3 <br />Net uplift tension for shearwall action <br />Normal uplift on exterior bearing wall <br /> <br />== 96 inches <br />== .25 <br />== 1020 pounds <br />== 7.333333 feet <br />== 7481 ft-pounds <br />== 701 plf <br />== 448 plf <br />== 253 plf <br />== 2723 pounds <br /> <br />Moment at base of shearwall <br />Area of reinforcing steel <br />Neutral axis to compression fiber <br />Neutral axis to reinforcing steel <br />Value of ratio <br />Bending stresses: <br />Reinforcing steel, tension <br />Concrete masonry, compression <br />Shear stress in concrete masonry <br /> <br />== 7481 ft-pounds <br />= "3067969 sq. in. <br />== 42.54603 inches <br />== 49.20397 inches <br />== .864687 <br /> <br />for each grouted cell <br /> <br />Actual == 9471 psi <br />Actual == 36 psi <br />Actual == 5 psi <br /> <br />Allowable == 26666 psi <br />Allowable == 666 psi <br />Allowable == 49 psi <br /> <br />Required lap splice == 25 inches <br /> <br />*** Summary of Analysis *** <br />Shearwall COMPLIES with all Code requirements. <br /> <br />------------------------------------------------------------------------------- <br />