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<br />XI.) Shear: <br /> <br />McAdams Addition <br /> <br />Load to ceiling/roof dia )hragm: <br />Height: 0-15 15-20 20-40 40-60 Total <br />T ota! hz. Pressure = 315.0 0.0 0.0 0.0 315.0 <br /> <br />pvlf <br /> <br /> <br />0.0 <br /> <br />3150.0 lbs <br />3150.0 lbs <br /> <br />Total shear transferred to sidewall = <br /> <br />Unit Shear at roof diaphragm: <br /> <br />v=R/b <br />Unit Shear ( v ) =1 <br /> <br />196.91 <br /> <br />0.01 <br /> <br />0.01 <br /> <br />0.01 <br /> <br />196.91plf <br /> <br />Unit Shear at Midheight walls (v'): (Design case) <br /> <br />Total width of openings at mid-height wall : <br /> <br />o <br /> <br />ft <br /> <br />Length of wall available to resist shear = <br /> <br />16 <br /> <br />ft <br /> <br />Unit Shear @ Midheight ( v' ) = <br /> <br /> <br />Select structural element to resist v' from SBC tables ie. 1710.2B <br /> <br />Shear capacity of structural element: 1050 plf <br /> <br />Fv=35psi x 2(1.25si x 12")/ft=1050 plf. <br /> <br />Required length of transverse shearwall =1 3.0 1ft <br /> <br />Longitudinal shear: <br /> <br />Height: 0-15 15-20 20-40 40-60 T ota! <br />Pressure: 25.2 27.6 33.6 37.2 <br />Contributing Height: 7.0 -1.0 -6.0 -26.0 <br />Unit Hz. Pressure = 176.4 0.0 0.0 0.0 <br />Reaction (R) = 1411.2 0.0 0.0 0.0 1411.2 <br />Unit shear (v=R/l) = 70.6 0.0 0.0 0.0 70.6 <br />Tot. opngs. @ mid ht 3.0 3.0 3.0 3.0 3.0 <br />Unit Shear (v') = 83.0 0.0 0.0 0.0 83.0 <br /> <br />Ibs <br /> <br />ft <br /> <br />Required length of longitudinal shearwall =1 <br /> <br />1.3 I ft <br /> <br /> <br />Page 8 <br /> <br />4. .L.~l-L""'U.L.J.v .L L..VVJ,\. LLJ.;"vn~ .J..v1'(v., <br /> <br />r 1 ,- -:::'1"' IV' ~ n.::::> l 1- ( ~,., ^-J S Y) 0 "'- So e <br /> <br />****************************************** <br />CONTRACTOR SF~ . <br />BUILDER II\-'\. C _1- .11 " <br />~~ ~ Company Jv'\",....., Jat:J~~~~6'f-J <br />State Cert, or Regist, 1F C&Q.-b.s'6I~""'- <br />Signature ~ ' -- .,- <br />City License Regis tration IF h - ~S <br />~~ : ***************************************** <br /> <br />ET ECTRTCTAN ' ~ ~ ~. ~ f?----Jo U \.." C"'>\ . ( - ' <br />~_ _ ~~ Company J-I~"""t r f'o..J c:::: eC"Tf ~ I <2- <br />State Cert, or Regist, 0 - <br />City License Registration # ~7/ <br />****************************~************* <br /> <br />Sismature <br /> <br />Signature <br /> <br /> <br />Guntpany <br />S-tat-e..Ce-r.t.. - Q..t:,..Re.gi.s.t.,--.if' <br />City License eg~s rc <br />************************************* <br /> <br />