Laserfiche WebLink
Design Wind Pressure (4x) <br />Wind Pressure P = <br />where,qh = = <br />Design Wind Speed V = <br />Velocity Pressure Coefficient Kz = <br />Topographic Factor Kzt = <br />Wind Directionality Factor Kd = <br />Ground Elevation Factor Ke = <br />Net Pressure Coefficient GCrn = <br />Normalized Wind Area An = = <br />Lb = = <br />* Note: Wind Load is based off tributary area of Purlin <br />* Based on Fig. 29.4-7 <br />(γp)= = <br />(γc)= = <br />(γE)= <br />Zone 3 <br />Zone 2 <br />Zone 1 <br />* Min. Wind Pressure = 16 psf (LRFD), 9.6 psf (ASD) <br />Zone 3 <br />Zone 2 <br />Zone 1 <br />* Min. Wind Pressure = 16 psf (LRFD), 9.6 psf (ASD) <br />NS STRUCTURAL ENGINEERING, INC MADE BY: JL <br />4642 Rockland Place La Canada <br />Flintridge, CA 91011 <br />CHECKED BY: NS <br />PAGE NO. 9 <br />95 mph Fig. 26.5-1A <br />0.90 26.10.1 <br />1 26.8.2 <br />Medtronics PV Project - Feasibility Study - Roof 2 DATE: <br />qh*GCrn Section <br />0.00256KzKztKdKeV2 17.7 psf 26.10.2 <br />177.8 ft²Fig. 29.4-7 <br />min(0.4(hWL)0.5,h,Ws) 30.0 ft <br />Table 1: (GCrn)nom <br />0.85 26.6 <br />1 26.9 <br />(γp)(γc)(γE)(GCrn)nom 29.4.3 <br />Roof Zone:0°  w  5°5°  w  15°(GCrn)nom for w <br />1 0.541 0.791 0.67 <br />[1000/max(Lb,15)2]*TA <br />min(1.2,0.9+hpt/h) 1.033 <br />max(0.6+0.06Lp,0.8) 0.82 <br />1.5 (Uplift) <br />2 0.708 1.024 0.87 <br />3 0.800 1.249 1.02 <br />23.10 psf 15.40 psf 13.86 psf 9.24 psf <br />19.53 psf 13.02 psf 11.72 psf 7.81 psf <br />1.0 (Downforce) <br />Wind Pressure (Exposed) <br />LRFD ASD <br />Uplift Downforce Uplift Downforce <br />15.02 psf 10.02 psf 9.01 psf 6.01 psf <br />Wind Pressure (Non-Exposed) <br />LRFD ASD <br />Uplift Downforce <br />13.02 psf 13.02 psf 7.81 psf 7.81 psf <br />10.02 psf 10.02 psf 6.01 psf 6.01 psf <br />Uplift Downforce <br />15.40 psf 15.40 psf 9.24 psf 9.24 psf <br />1851 E Deere Ave - 101118504 & <br />20182282 <br />4/11/2024