Laserfiche WebLink
≔M C E _I O =⋅―――――― <br />⋅⋅m I O _u p li f t Lf P UD <br />2 <br />⎛ <br />⎜ <br />⎝ <br />-1 ―――― <br />⋅m I O _u p li f t q <br />⋅⎛⎝+1 C v ⎞⎠q c <br />⎞ <br />⎟ <br />⎠ <br />95 2 ⋅k i pkipkipkip f tftftft <br />≔M C E _LS =⋅―――――― <br />⋅⋅m LS _u p li f t Lf P U D <br />2 <br />⎛ <br />⎜ <br />⎝ <br />-1 ―――― <br />⋅m LS _u p li f t q <br />⋅⎛⎝+1 C v ⎞⎠q c <br />⎞ <br />⎟ <br />⎠ <br />13 03 ⋅k i pkipkipkip f tftftft <br />≔D C R be a r i n g_I O =――― <br />M I O <br />M C E _I O <br />1.4 7 3 <br />≔D C R be a r i n g_L S =――― <br />M L S <br />M C E _LS <br />2 .29 5 <br />These DCRs are also greater than 1.0, however they are smaller. We judge <br />foundation 1.5 to be ok as it frames into highly vertically loaded shear walls on both <br />sides that would prevent the foundation from uplifting or overturning. The restoring <br />action of these shear walls is not taken into account above. <br />Shear wall 6.3 also has a DCR greater than 1.0 for uplift, but is also connected to a <br />highly vertically loaded shear wall. We deem this shear wall ok for the reasons <br />above. <br />Shear walls 1.A, 3.A, 3.5, and B.2 all also have DCRs greater than 1 considering the <br />weight of the shear walls and footings alone. However, these foundations are <br />connected to additional elements that also provide restraint similar to the crosswalks <br />for the two cases described above. These are shown immediately to the right of the <br />DCR in the excel table. <br />P a d d The additional load added from the connected elements of the foundation <br />d The distance away the additional load acts <br />＝M r est or i n g _a d d ⋅P a d d d Additional restoring moment on the foundation <br />＝M C E _LS +⋅m LS _u p li f t M r e s t or i n g_a d d ⋅―――――― <br />⋅⋅m LS _u p li f t Lf P UD <br />2 <br />⎛ <br />⎜ <br />⎜ <br />⎜⎝ <br />-1 ――――――― <br />⋅m LS _u p li f t <br />⎛ <br />⎜ <br />⎝ <br />+q ―― <br />P a d d <br />⋅L f bf <br />⎞ <br />⎟ <br />⎠ <br />⋅⎛⎝+1 C v ⎞⎠q c <br />⎞ <br />⎟ <br />⎟ <br />⎟⎠ <br />The additional load for each wall is described below: <br /> <br /> <br /> <br /> <br />1.A has an additional load from the roof girder on GL B that frames into it <br />3.A has additional loads from the orthogonal foundations at each end of the wall <br />3.5 has additional loads from the orthogonal foundations at each end of the wall <br />B.2 has additional loads from the orthogonal GL on one end and the end reaction of <br />wall B.1 transferred by the footing in between <br />28 of 100 <br />1327 S Grand Ave <br />12/12/2024