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Calculation Procedure <br /> 1} 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 /> crtgen are represented by several straight line segments.The properties the overall shape <br /> are computed by geornetriC summation of the prvpurlie ktr a troperoid dcttnod by <br /> pro;eution 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 Ail open Shape`are represented by potylines. Curvilinear and circular shapan nr <br /> edges are represented by several straight lure segments. The properties the overall shape <br /> err,: rorrrputed by geometric summation of the properties of a tine cluEne rl by projection of <br /> two consecutive points of the cress-section on to the x and y axis <br /> ►-or 1101rrits refer to the User's Manual <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 />