Laserfiche WebLink
<br />**** T R"A N 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 />SheaTwal1 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 />= 6941 pounds <br />= 3470 pounds <br />= 1469.757 <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 />:= .5 <br />= 1735 pounds <br />::: 7.333333 feet <br />= 12723 ft-pounds <br />-. 15.57 plf <br />471 plf <br />= 1086 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 />Sending stresses: <br />Reinforcing steel, tension <br />Concrete masonry, compression <br />Shear stress in concrete masonry <br /> <br />= 12723 ft-pounds <br />:= .3067969 sq. in. <br />36.86685 inches <br />42.88315 inches <br />::: .8597049 <br /> <br />for each grouted cell <br /> <br />Actual -- <br />Actual = <br />Actual = <br /> <br />4319 psi <br />214 psi <br />20 psi <br /> <br />Allowable = 26666 psi <br />Allowable ::: 666 psi <br />Allowable = 46 psi <br /> <br />Required lap splice = 25 inches <br /> <br />*** Summary of Analysis *** <br />Shearwall COMPLIES with all Code requirements. <br /> <br />------------------------------------------------------------------------------- <br />