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PROJECT: <br />LOCATION: <br />DESIGNER: <br />CMU WALL - WIND LOAD CALCULATION <br />DESCRIPTION:5'-0" Exposed Ht (max) <br />Wall total Height =8'-0" max <br />1. Design Data: <br />Solidity factor for Wall = 100% <br />Wall Geometry: <br />Tributary Width of wall, B:1.00 ft. <br />Width of wall in the direction under consideration, L:174.4 ft. <br />Wall Exposed Height, H:5.00 ft. <br />Wind Design Parameters: <br />F = qh G Cf As (ASCE 7-22 Sec. 29.3-1) <br />Pw = qh G Cf (ASCE 7-22 Sec. 26.7.3) <br />ASD factor:0.6 Exposure Category:C <br />Where: <br />F = Design wind force, = Pw As (lbs.)(ASCE 7-22 Eq. 29.3-1) <br />qh = velocity pressure evaluated at height, h (ASCE 7-22 Sec. 29.3.2) <br />Cf = Net force coefficient (ASCE 7-22 Fig. 29.4-1) <br />As = Gross area of the solid freestanding wall (ft 2 ) <br />G = Gust Factor (ASCE 7-22 Sec. 26.11) <br />Pw = Design Wind Pressure, = qh G Cf (psf ) <br />Calculate Design Wind Pressure, Pw: <br />Net Force Coefficient, Cf:(ASCE 7-22 Sec. 29.3) <br />Case:A & B (Fig. 29.3-1) <br />height of free standing wall or fence, s: (Exposed height)5.00 ft <br />Height from top of wall to ground surface, h:7.33 ft <br />Clearance ratio, s/h: 5.00 <br />7.33 <br />Aspect ratio of the fence, L/s: 174.40 <br />5.00 <br />By Interpolation, <br />Cf: 1.55 <br />Gust Factor Coefficient, G:(ASCE 7-22 Sec. 26.11) <br />Check if Structure is Flexible or Rigid: <br />Calculate approx. natural frequency, na: <br />Mean gate height (exposed height): (use full height H)5.00 ft <br />22.2 22.2 (Eq. 26.11-2) <br />3.624 <br />na= 6.126 > 1 Hz Rigid Frame System <br />1+1.7gQ Iz Q (eq.26.11-6) <br />1+1.7gv Iz <br />From: <br />z= equivalent height of structure = 0.6h <br />=34.88 <br />DESIGN CALCULATION <br />na= = <br />G=0.925 <br />RET.WALL_Better Buzz <br />Bristol Santa Ana,CA <br />GATS&M <br />=0.68 <br />ℎ.