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HomeMy WebLinkAboutDESIGN WIND PRESSUREi CREA CONSULTANTS, LLC Project LAKEWOOD PLAZA PARK Subject INTERIOR REPAIRS & FASCIA REPAIR Location : 5180-5188 TURKPIKE FEEDER ROAD SCANNED By St. Lucie County Desaln Wind Pressure. P. Equation 3D.4-1 IASCE 7-101 File 201806 Date : 6/6/2018 Eng MARCO T. PEREZ P.E. Components and Cladding Low -Rise euldings p : qh-((GCp)-(GCpi)) (Envelope Procedure) with h <=60 ft qh : velocity pressure at h Monoslope Roofs GCp ; Figures 30.4-1 & 30.4-5 GCpi :Table 26.11-1 Velocity Pressure Calculations: Velocity pressure qh is calculated in accordance with section 30.3. qh = Velocity pressure @ mean roof height (h) qh = Constant • Kh • Kzt • Rd • V z Where: Constant = Numerical Constant = %-((Air density lb/ cult)/(32.2 ft/sz mi/h)(5280 ft/mi) • (1 hr/3600 s )] 2 = 0.00256 Mean Sea Level = 0.00 it Air Density@MSL 0.0765 Ib/cuft Occupancy Category = II Exposure Category = C a = 9.50 Zg = 900.00 ft Basic Wind Speed = 160.00 mph Mean Roof Height = 14.00 It Kh = Velocity pressure coefficient @ height h = 2.01{Z/Zg)A(2/a)for 15 ft<=Z<=Zg = 2.01.(1S/Zg)A(2/a)for Z<15ft = 0.85 Kzt = Topographic factor _ (1+K1-K2-K3)2 Topography = None Kzt@h = 1.00 ' Kd = Wind directionality factor = 0.85 qh = 47.29(psf) (Eq 30.3-1) (Section C27.3.2) (Table C27.3-2) (Table 1.5-1) (Section 26.7.3) (Table 26.9-1) (Table 26.9-1) (Figure 26.5-1 A-C) (Table 30.3-1) (Figure 26.8-1) (Table 26.6-1) I CREA CONSULTANTS, LLC Project LAKEWOOD PLAZA PARK Subject INTERIOR REPAIRS & FASCIA REPAIR Location : 5190-5198 TURKPIKE FEEDER ROAD Internal Pressure Coefficient, GCpi. Table 26.11-1 0_18 [ _0.18 I 60 External Pressure Coefficient, GCo. Figures 30.4-5 (roofl and 30.4-1 (walIsl © 10.00 1.00 0.30 1 -1.00 ! ® 10.00 1.00 0.30 -1.80 ® 10.00 1.00 0.30 -2.80 ® 10.00 1.00 - - ® 10.00 1.00 - - mm 30.00 All 0.90 -0.99 ® 10.00 All 0.90 -1.26 Values of GCp for walls were reduced by 10% Design Wind Pressure. P. Equation 30.4-1. File 201806 Date : 6/6/2018 Eng MARCO T. PEREZ P.E. 5,o06,-000 1 1.00 0.18 -0.18 ®.. 47.29 0.30 -1.00 0.18 -0.18 5.67 ®. 47.29 0.30 -1.80 0.18 0.18 -0.18 i 5.67 5.67 ® 47.29 0.30 2.80 0.18 ® 47.29 - - 0.18 -0.18 _- ® 47.29 - 0.18 0.18 47.29 0.90 .0.99 0.18 i -0.18 34.05 ®-47.29 0.90 1 -1.26 1 0.18 -0.18 34.05 Values of external and internal pressures shall be combined algebraically pl+uses GCp+and GCpi+ pl-usesGCp-andGCpi+ p2+uses GCp+and GCpi- p2-uses GCp- and GCpi- 22.70 55.80 -38.78 22.70 -93.63 -76.61 22.70-140.92-123.89 - - r --- -- 51.07 -55.33 i -38.30 51.07 I -68.09 y -51.07