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HomeMy WebLinkAboutWIND CALCULATIONSCSE - CONSULTING STRUCTURAL ENGINEERS Certificate of Authorization # 26982 1025 Cedar Falls Dr Weston FL 33327 T 954 439 0194 F 954 384 9836 cseng2001@gmail.com Customer: Forever Sign Building Codes: 2020 FBC and ASCE 7-16 Vult=Wind Velocity for strenght design Risk Category II Vasd=Wind velocity for allowable stress design Vasd=Vult*(0.6)^(1/2) Vult=160 MPH (Risk category = II) Vasd=124 MPH Exposure =C Height =8 Feet KD =0.85 KZ =0.85 KZT =1.00 Qz = Velocity Pressure QZ = 0.00256 *KZ *KZT *KD *V2 QZ = 28.41 PSF F = Design Wind Force F =Qz G Cf Af G = 0.85 Cf =1.5 Wind Claculations - Monument Sign (Solid Signs) Job: Treasure Hunt Monument Sign @ 440 S US 1 Fort Pierce FL Date: December 8, 2021 1 of 4 Alejandro Vargas P.E. License # 63894 CSE - CONSULTING STRUCTURAL ENGINEERS Certificate of Authorization # 26982 1025 Cedar Falls Dr Weston FL 33327 T 954 439 0194 F 954 384 9836 cseng2001@gmail.com Af =Sign Area Af =6'*6' + 2'*4.6' Af =45.20 SF F=1637 LBF Mb=Moment at post base CG =8'/2 *1.05= 4.2' Mb= 1637 Lbf * 4.2' Mb=6,876 Lbf-ft SM =Section Modulus SM = Mb / (fy*0.6) SM=6876 Lbf-ft *12(in/ft) /(39000*0.6) SM=3.53 IN3 Use 4"x4"x1/4" Steel tube with SM= 4.11 IN3 > 3.53 IN3 then OK Concrete Foundation: 5'-0" (lenght) x 6'-0" (width) x 1'-0" (depth) Concrete Footing Mr=Resisting Moment Mo=Overturning Moment Foundation Design Post Design 2 of 4 Alejandro Vargas P.E. License # 63894 CSE - CONSULTING STRUCTURAL ENGINEERS Certificate of Authorization # 26982 1025 Cedar Falls Dr Weston FL 33327 T 954 439 0194 F 954 384 9836 cseng2001@gmail.com Mo=F*(CG + 1.0') Mo= 1637 Lbf x (4.2' + 1.0') Mo=8,512 Lbf-Ft Mr= 150Lbf / CF *(5'*6'*1')*6'/2 + 400 Lbf * 6'/2 Mr=14700 Lbf-ft SF=safety factor = Mr/Mo SF=1.73 > 1.5 Then OK. qmax=2P / 3bm P=150Lbf /CF*(5'*6'*1') + 400 Lbf P=4900 Lbf e= M / P =8512 Lbf-ft / 4900 Lbf e= 1.74 FT m = 6'/2 - 1.74' = 1.29' qmax=2*4900 Lbf / (3*5'*1.29') qmax=507 PSF < 2000 PSF then OK. Steel Reinforcement Design As =0.0018*6'*1'*144(IN2/FT2) As =1.56 IN2 3 of 4 Alejandro Vargas P.E. License # 63894 CSE - CONSULTING STRUCTURAL ENGINEERS Certificate of Authorization # 26982 1025 Cedar Falls Dr Weston FL 33327 T 954 439 0194 F 954 384 9836 cseng2001@gmail.com Using # 5 rebar with 0.31 IN2 ea then # of # 5 rebars=1.56 IN2 / 0.31 IN2 = 5 Units D = distance betwen center on rebars D=6.5' / 4 spaces = 1.63' D=1.63 Ft = 19.2" < 18 " then OK Then use # 5 rebars @ 18" OC 4 of 4 Alejandro Vargas P.E. License # 63894