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Page 2 of 2 <br />S U L LAWAY <br />11545 W. Bernardo Court, San Diego, CA 92127 <br />projectmanager@sullawayeng.com <br />■ ENGINEERING <br />Phone: 858-312-5150 Fax: 858-777-3534 <br />PROJECT: NORTH MIDDLE SCHOOL <br />DATE: 10/20/22 <br />PROJ. NO.: 37443 <br />ENGINEER: HL <br />CLIENT: PLUMB SIGNS <br />v5.5 <br />units; pounds, feet unless noted otherwise <br />Applied Wind Loads; from ASCE 7-16 <br />F=qZ*G*Cf*Af <br />with qZ = 0.00256KZKZtKdV (29.3.2 & 29.4) <br />Cf= 1.777 <br />(Fig. 29.3-1) <br />max. height= 10.04 <br />KZt= 1.0 <br />(26.8.2) (=1.0 unless <br />unusual landscape) <br />s= 3.50 <br />KZ= from table <br />28.3-1 <br />Exposure= <br />c <br />Kd= 0.85 <br />for signs (table 26.6-1) <br />V= 100 <br />mph <br />G= 0.85 <br />(26.9) <br />weight= 0.458 kips <br />s/h= 0.349 <br />Mpg= 0.00 k-ft <br />B/s= 1.93 <br />Pole structure height at <br />pressure <br />Wind <br />Loads component section c.g. <br />Kz qz <br />gz'G'Cf Af <br />shear Moment Mw <br />1 3.3 <br />0.850 18.5 <br />27.93 21.9 <br />613 1991 <br />2 7.79166667 <br />0.850 18.5 <br />27.93 17.4 <br />487 3795 <br />3 9.56233333 <br />0.850 18.5 <br />27.93 6.5 <br />181 1727 <br />sums: 45.8 <br />1280 7.51 (M.) k-ft arm= 5.9 <br />P = <br />0.55 kip <br />M= 7.51 k-ft M=sgrt(MpL2+MW2) <br />M=sgrt(1.2MpL2+1.OMw2) = <br />7.51 k-ft <br />Pole Design <br />section; pipe <br />Mu < Wn with Mn= f'Z fY <br />35 ksi <br />0.9 <br />H M (k-ft) <br />Z req'd. (in) <br />Size(in) t (in) <br />Z USE <br />at grade 7.5 <br />2.86 <br />3.5 0.226 <br />3.0 5 STD PIPE, OMn= 17.9 k-ft <br />Footing Design <br />footprint: round <br />0)= 1.3 <br />IBC 1605.3.2 <br />IBC Table 1806.2, sections 1806.3.4, 1807.3.2 S=(1.3x2x) <br />P= 1.00 <br />kip <br />S1 =Sxd/3 <br />A=2.34xP/(S1 xb) S= 400 <br />S1= 611 <br />d =0.5xA (1+ (1+4.36x h/A) 1.5) IBC 1807.3.2.1 <br />A= 1.91 <br />footing: 2' - 0" <br />dia. 4' - 7" deep <br />