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1 of 2 <br />JOHN A. MARTIN and ASSOCIATES, INC. □ STRUCTURAL ENGINEERS <br />Client: Sheet <br />Project: Job No 16041 <br />Date 6/12/2020 <br />Engineer KK/MF <br />Wind Analysis (ASCE 7-16 Chapter 29) <br />F = qzGCfA <br />qz = 0.00256KzKztKdKeV2 <br />Kzt= 1 Fig. 26.8-1 (Not applicable at high elevation, escarpment, ridge, or hill/mountain) <br />Kd = 0.9 Table 26.6-1 <br />Ke 1 Table 26.9-1 <br />Kz Table 26.10 <br />V = 95 mph Exp C H = 30 ft (max) <br />G Section 26.11 <br />Cf Figure 29.4-1 <br />Pole centroid (ft) Kz qz (psf) Cf G Length (ft) Width (in) Area (ft2) <br />0-3 ft conc. Base 1.5 0.85 17.7 2 0.85 3.0 24 6.00 <br />3-15 ft 9 0.85 17.7 2 0.85 12.0 5 5.00 <br />15-20 ft 17.5 0.9 18.7 2 0.85 5.0 5 2.08 <br />20-25 ft 22.5 0.94 19.5 2 0.85 5.0 5 2.08 <br />25-30 ft 27.5 0.964 20.0 2 0.85 5.0 5 2.08 <br />(G Type) OSQ-A-NM 30 0.98 20.4 2 0.85 2.00 <br />(ASD) Forces at finished grade <br />Frost Depth = 0 ft (for areas not adjacent heated spaces) <br />Pole F (lbs) Mo (ft-lb) <br />0-3 ft Concrete Base 108.2 162 <br />3-15 ft 90.1 811 <br />15-20 ft 39.8 696 <br />20-25 ft 41.5 935 <br />25-28 ft 42.6 1171 <br />(G Type) OSQ-A-NM 41.6 1247 <br />Sum = 364 5022 <br />Heq = Mo/F = 13.8 ft <br />Forces at pole base <br />Pole centroid (ft) F (lbs) Mo (ft-lb) <br />3-15 ft 6 150.2 901 <br />15-20 ft 14.5 66.3 961 <br />20-25 ft 19.5 69.2 1350 <br />25-28 ft 24.5 71.0 1739 <br />OSQ-A-NM Series 27 69.3 1871 <br />Sum = 426 6822 <br /> ASD Forces at pole Base = 255 4095 <br />Rogers Electric <br />CBC 2019 <br />CA6-204 <br />SANTA ANA, CALIFORNIA <br /> 950 SOUTH GRAND AVENUE, 4TH FLOOR LOS ANGELES, CA 90015 213.483.6490 <br />G:\Job16000\J16041 Light Pole Foundation\Engineering\Calcs\Santa Ana - CA6-204\1 cover page.xlsm <br />p-1 <br />2020-161485 <br />12/15/20