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≔M O T _I O =⋅V I O _T ―――― <br />h r oof <br />⋅C 1 C 2 μO T <br />31 9 ⋅k i pkipkipkip f tftftft <br />Restoring Moment <br />≔M S T =⋅w D ―― <br />L sw <br />2 <br />2 <br />9 8.1 8 9 ⋅k i pkipkipkip f tftftft <br />Check overturning <br />41-17 Eq. 7-6 <br />≔D C R LS =――― <br />M O T _LS <br />⋅0 .9 M S T <br />3 .02 <br />≔D C R I O =――― <br />M O T _I O <br />⋅0 .9 M S T <br />3 .6 07 <br />Where overturning DCRs are less than 1.0 for both Life Safety and Immediate Occupancy, <br />there is no net uplift and hold-downs are not required. <br />Where the overturning DCR is greater than 1.0 for either or both performance objectives, <br />hold-downs must be designed to satisfy the requirements of 41-17 shown below: <br />Hold-downs should be designed as force-controlled components. See the next section <br />for the hold-down design. <br />23 of 100 <br />1327 S Grand Ave <br />12/12/2024