Laserfiche WebLink
MURDOC <br />STRUCTURE PROFESSIONALS <br />Ultimate Wind Speed= <br />110 <br />mph, IBC 2018 <br />Normal Wind Speed= <br />85.21 <br />mph <br />Exposure= <br />C <br />open terrain, scattered buildings <30Ft. <br />Cf= <br />1.59 <br />ASCE 7-16 Force Coefficient <br />G= <br />0.85 <br />Gust Factor <br />Kh= <br />0.85 <br />Velocity pressure Coefficient @ height <br />Kzt= <br />1 <br />Topographic factor <br />1= <br />1 <br />Importance factor <br />Kd= <br />0.85 <br />Wind directionality factor <br />Areas Subject to Wind Forces <br />Height <br />Width <br />Area <br />Centroid <br />I Wind <br />I Pounds <br />lbs. Tota <br />TOS <br />(cF) <br />(ftJ <br />(ft) <br />(s9ft) <br />(ft) <br />I (,ps l <br />1.59 <br />3.00 <br />2.00 <br />1 6.00 <br />r 1.9 <br />1 22.0 <br />1 84 <br />1 50.4 <br />1 3.38 <br />Column Support Design Table <br /># of <br />Column <br />Column <br />Length <br />Start <br />End <br />Cols <br />Type <br />Size <br />Elev <br />Elev <br />PITS <br />ft <br />ft <br />ft <br />2 <br />RT <br />IT1.5XX.121 <br />3.38 <br />3.38 <br />Section Modulus Provided (2"x2"x1/4") = 0.91146 in3 <br />Max. Bending Stress in Section = 248 lb-ft * 0.7 * 12 in/ft 10.91146 in3 = 2.286 ksi > 8 ksi [OK] <br />SECTION MEETS DESIGN CRITERIA <br />Plate Design <br /># of Base Plates= <br />Maximum Column Dimension, OD= <br />Number of Bolts, n= <br />Compressive Strength of Concrete, fc= <br />Moment / per/Base Plate, M= <br />Bolt Line Spacing, L= <br />Base Plate Dimensions: <br />Tension per Bolt Line, T= <br />Maximum Moment on the Plate, Mpl= <br />Plate Thickness w/o Gussets, t= <br />Plate Thickness w/ Gussets, t= <br />Mum. PL Thickness w/o Gussets. t= <br />Alum. PL Thickness w/ Gussets. t= <br />2 <br />in, perpendicular to sign face <br />per line front and back <br />psi at 28 days <br />lb-ft <br />in, from front to back <br />4-00 lin B= 8.00 in <br />lb, = M/L (simple moment couple) <br />lb -in, _ (T)((L-0Dy2) <br />in, = Sgrt((6MY(0.75Fy(4/3) Beft)) <br />in, = Sgrt((6M)/(0.75Fy(4/3) Bef)" 0.8) <br />2.00 <br />1 <br />173 <br />6.00 <br />N= <br />347 <br />693 <br />0 17 <br />0.14 <br />0.20 <br />0.16 <br />Tension per anchor = 347 lb <br />Shear per anchor = 46.2 lb <br />3/8"x2" DeWALT Screw -Bolt+, embd. 2" into minimum two-wythe solid brick masonry <br />Allowable Tension = 905 lb > 347 lb [OK] <br />Allowable Shear = 930 lb > 46.2 lb [OK] <br />FASTENING MEETS DESIGN CRITERIA <br />973-570-8215 2 of 2 New Projects <br />murdochengineering.com projects@murdochengineering.com <br />