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Calculation Procedure <br /> t) Closed Shapes: <br /> The geometric properties for closed shapes are computed by using the Polygon method. <br /> All closed shapes are represented by closed polygons. Curvilinear and circular shapes or <br /> edges are represented by several straight line segments. The properties the overall shape <br /> are computed by geometric summation of the properties ur a trapezoid defined by <br /> pro,eclian of two consecutive points of the cross-section on to the x and y axis. <br /> 2) Open Shapes: <br /> The geometric properties for open (thin walled)shapes are computed by using the Polyline <br /> method Alt open shapes ale:epresented by pot Ines, Curvilinear and circular shape or <br /> edges arc represented by several straight tine segments. The properties the overall shape <br /> aro rionâ–şpuled by graorraetric Summation or the proper-ties of a ime def:ner1 by prnjeclion of <br /> IwO conM culive points of the cress-section on to the x and y axis <br /> hor details refer to the User's Manuel <br /> FOOTING SIZING CALCULATIONS <br /> 1) LOADING <br /> Dead Load= 7 psf <br /> Live Load = 100 psf <br /> Total Load, RAMP_TL= 107 psf <br /> 2) FOOTING ON SOIL <br /> Soil Allowable Bearing Pressure = 1500 psf <br /> 7' Platform Center Column, Area = 12.25 psf <br /> Max Load = 1311 # <br /> Min. Footing Area= 0.87 sf <br /> Footing Pad w/minimum Size= 11.22 inch <br /> USE:12-INCH, MIN. SQUARE PAD UNDER COLUMN ON SOIL <br /> 3) FOOTING ON PAVEMENT(Based on 8-inch Depth Pavement+Base) <br /> Allowable Bearing Pressure = 8831 psf <br /> 7' Platform Center Column, Area = 12.25 psf <br /> Max Load = 1311 # <br /> Min. Footing Area = 0.15 sf <br /> Footing Pad w/ minimum Size= 4.62 inch <br /> USE:5-INCH, MIN. SQUARE PAD UNDER COLUMN ON PAVEMENT <br /> WELCOME RAMP CALCS-IBC 2018 Page 38 <br />