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<br />~*** L d N G I T U DIN A L <br /> <br />SHE A R W ALL <br /> <br />A N A L Y 5 I S **** <br /> <br />Shearwall is 8 inch concrete masonry with Type S mortar <br />Masonry compressive strength is 1500 psi on net area <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 IlL <br /> <br />== 5116 pounds <br />= 2558 pounds <br />-- 1342.994 <br /> <br />Shearwall Number 2 : <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 <br /> <br />= .7640492 <br />= 1954 pounds <br />= 7..333333 feet <br />= 14332 ft-pounds <br />.- 1343 plf <br />471 plf <br />= 872 plf <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, compl-ession <br />Shear stress in concrete masonry <br /> <br />= 14332 ft-pounds <br />= .3067969 sq.. in.. <br />== 42.67474 inches <br />== 49.07526 inches <br />= .8695775 <br /> <br />for each grouted cell <br /> <br />Actual = 3688 psi <br />Actual = 188 psi <br />Actual = 20 psi <br /> <br />Allowable = 26666 psi <br />Allowable = 666 psi <br />Allowable = 51 psi <br /> <br />Required lap splice = 25 inches <br /> <br />*** Summary of Analysis *** <br />Shearwall COMPLIES with all Code requirements. <br /> <br />---------------------------------------~--------------------------------------- <br />