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<br />Architectural Services Engineering, Inc <br /> <br />24710 State Road 54 <br />Lutz, FI 33559 <br /> <br />(813) 948-2812 <br />Fax: (813) 949-2016 <br /> <br />Name: <br />Project: <br /> <br />Lott Sign Service <br />K&K <br /> <br />Robert W. Wall <br />Structural Engineer, FI Reg #46021 <br /> <br />Wind Speed <br />Mean Height <br /> <br />130 mph <br />60 ft <br /> <br />Il.il~III~II~~i~I~~i~ili:!: <br /> <br />Wind Pressure (WP) <br />Shape Factor (SF) <br /> <br />37.848 pst <br />1.5 <br /> <br />Total Pressure = WP*SF <br /> <br />56.77 pst <br /> <br /> <br />Letter Height (in) <br />Letter Width (in) <br /> <br />Oft <br />Oft <br /> <br />30 in <br />90 in <br /> <br />Number ot Bolts <br /> <br />4 <br /> <br />Shear Value <br />Tension Value <br /> <br />443 Ibs <br />610 Ibs <br /> <br />Area <br /> <br />18.75 sqtt <br /> <br />Shear per bolt <br />Tension per bolt <br /> <br />= Area * 10 pst <br />=Pressure * Area <br /> <br />46.88 Ibs <br />266.12 Ibs <br /> <br />Bolt Value=Shear per bolt / Shear Value + Tension per Bolt / Tension Value <br /> <br />ISolt Value <br /> <br />0.54 < 1.00 O.K. <br /> <br />Use 4 - 3/8" dia. thru bolts with a minimum 2" square washer into structural2x4 wood backing for raceway sign <br /> <br />All wind loads are designed per ASCE 7-98. <br /> <br />~ <br />'7{17{~ <br />