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<br />Sanchez Residence <br /> <br />Height: 0~15 15~20 20~40 40~60 Total <br />Resisting Moment: 1988.3 1988,3 1988,3 1988.3 .1988.3 <br />x 2/3 = 1325.5 1325.5 1325.5 1325.5 1325.5 <br />Uplift Moment: ~833,O 0,0 0,0 0,0 -833,0 <br />lIz, Pres, Moment : -193 , 7 -104,7 0,0 0,0 -298.4 <br />Overturning Mmt, = -1026.7 -104.7 0.0 0.0 -1131.4 <br /> <br />Note: If OM < 2/3 RM, hold-downs are not required, <br /> <br />Required tie-down force (T): <br /> <br />( Factor of Safety 'built in' to Mfr's tables,) <br /> <br />Therefore : T x b + RM > or = OM, <br />where, b= building width. <br /> <br />T = (OM-RM) 1 b = I -21787 Ilbs <br /> <br />** SpecifY tie-down accordingly, FS 'built in' to Mfr's tables, <br /> <br />x.) Girder Uplift: <br />1.) Two (2) Point Bearing, Symmetric, <br /> <br />Girder Contrib, area(st) Height (ft) Net Uplift (psf) Upliftperbrg. <br />#1 Hip 165,3 13.2 -9.2 -760.5 <br /> 13 .2 -9.2 0.0 <br /> I 3.2 -9.2 0.0 <br /> <br />Girder <br />Mark <br /> <br />2,) Other configurations ie, three (3) point brg. <br />Contrib, Height eft) <br />area (sf) (Mn,root) <br />13.2 <br />13,2 <br /> <br />Net Uplift ( sf) <br />-9.2 <br />-9.2 <br /> <br />N/A <br /># Brg, <br />Points <br /> <br />Max. Uplift <br />Reaction (Ibs) <br /> <br />Page 7 <br /> <br />