Laserfiche WebLink
Wind Load Calculations - Stage Plus 40'x40' Roof <br />Velocity Pressure, qz, at height "z".... <br />qz =0.00256*Kz*Kzt*Kd92*1 <br />V=50 mph <br />I = 1.15 (Category Ill occupancy) <br />Kz =0.94 (Exposure C, h < 25 ft) <br />ASCE7-05 Reference <br />Eq. 6-15 <br />per Fig. 6-1 <br />Table 1-1 and Table 6-1 <br />Table 6-3 <br />Kzt =1.0 (Ignore topographic effects)Eq. 6-3 <br />Kd.=0.85 (MWFRS)Table 6-4 <br />qz =5.9 psf <br />Design Wind Pressure for MWFRS per ASCE7-05, Eq. 6-17 <br />P=q*G*Cp - qi*(GCJ Eq. 6-17 <br />G <br />G <br />= 0.85 (Rigid structure)Section 6.5.8.1 <br />. <br />= 0.85 (Rigid structure)Section 6.5.8.1 <br />¥ <br />Gcpi = 0 (Open structure)Section 6.2 and Figure 6-5 <br />0 <br />Main Wind Force Reilsting Sy,tem <br />Figure 6- 1 HA Net Pressure Coefficient, C, <br />Open Bulldinp <br />0.25 5 h/L 5 1.0 <br />Monostope ¥ree Roofs <br />q 5 45°, 9 = 0°, 180° <br />L <br />0.5 L 0.5 L <br />, 1 <br />h <br />L <br />0.5 L 0.5 L <br />Wind <br />Wind <br />Direction <br />Direction <br />2 -1 272 <=. 7 - 13(F <br />/lil1lllllljjtl!!l 1);11/jilill/)11*/ <br />R:of 1.Nd Wind Dir¢rti.n. 7= 0'Wind Diirn. 7. ISO' <br />Ant:le Ca·•C Clear Wind Flow Ob,truded \Vind Flow Clar Wind Flow·Ob.cructed Wind Flow <br />1 1 <br />8 CNW C.L (3NW CM.C-CM.Chw <br />If'A 1.2 0.3 41.5 .1.3 I.2 0.3 -0.5 -I.2 <br />B -1.1 ·11. i 1.1 46 1.1 4.1 -1.1 -0.6