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Foundation Checks <br />Overturning Checks/Bearing Pressure <br />The foundations were check according to 41-17 Chapter 8 Section 8.4.2.3 Shallow <br />Footings Considered Rigid (Method 1). <br />The overturning demands were calculated from the shear wall shear and the roof <br />height, as was done for previous sections <br />≔M LS =⋅V LS _T h r o of 2 9 8 9 ⋅k i pkipkipkip f tftftft <br />≔M I O =⋅V I O _T h r oof 1 4 0 3 ⋅k i pkipkipkip f tftftft <br />The gravity load acting on the foundation for the overturning checks is the tributary <br />weight of the roof, the self-weight of the wall, and the self weight of the foundation <br />≔P UD =⎛⎝+⋅w D L s w 1 1 .3 1 k i pkipkipkip ⎞⎠1 7.73 2 k i pkipkipkip <br />11.31 kip is the self-weight of the foundation at GL 1.5 <br />The moment capacity is determined using the following equation: <br />＝M C E ⋅―――― <br />⋅⋅m L f P U D <br />2 <br />⎛ <br />⎜ <br />⎝ <br />-1 ――――q <br />⋅⎛⎝+1 C v ⎞⎠qc <br />⎞ <br />⎟ <br />⎠ <br />41-17 Equation 8-10 <br />The term (1+Cv) above is a modification to Eqn 8-10 above permitted by 41-17 for <br />the upper bound capacity of the foundation. The upper bound capacity is then <br />compared to the overturning demand. The m-factor is also included in the capacity <br />within the spreadsheet. <br />≔L f 31 .5 8 f tftftft Length of shear wall footing <br />＝q ―― <br />P UD <br />⋅bf Lf <br />Bearing pressure due to gravity loads only <br />26 of 100 <br />1327 S Grand Ave <br />12/12/2024